CN120103876B - Automatic control photovoltaic system and control method thereof - Google Patents
Automatic control photovoltaic system and control method thereofInfo
- Publication number
- CN120103876B CN120103876B CN202510550826.3A CN202510550826A CN120103876B CN 120103876 B CN120103876 B CN 120103876B CN 202510550826 A CN202510550826 A CN 202510550826A CN 120103876 B CN120103876 B CN 120103876B
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- Prior art keywords
- photovoltaic panel
- motor
- short
- panel assembly
- support column
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Photovoltaic Devices (AREA)
Abstract
本发明公开了一种自动控制光伏系统及其控制方法，该系统包括光伏面板组件、电气检测系统、双轴驱动系统及控制系统；光伏面板组件用于将光能转换为电能并输出；电气检测系统用于检测光伏面板组件输出的电气信号，电气信号包括电压和/或电流；双轴驱动系统用于驱动光伏面板组件分别绕两个相交的轴线转动；控制系统用于接收来自电气检测系统的检测信号，并输出信号控制双轴驱动系统的动作，使光伏面板组件随检测信号变化而调整姿态。本发明可控制光伏面板组件绕两个相交轴线转动来跟踪光源入射光，结构及控制方法简单，可实现光伏面板组件对光线角度的自调整，实现更多的光能利用。
The present invention discloses an automatically controlled photovoltaic system and control method thereof. The system includes a photovoltaic panel assembly, an electrical detection system, a dual-axis drive system, and a control system. The photovoltaic panel assembly is configured to convert light energy into electrical energy and output it. The electrical detection system is configured to detect the electrical signal output by the photovoltaic panel assembly, the electrical signal including voltage and/or current. The dual-axis drive system is configured to drive the photovoltaic panel assembly to rotate about two intersecting axes. The control system is configured to receive detection signals from the electrical detection system and output signals to control the operation of the dual-axis drive system, causing the photovoltaic panel assembly to adjust its posture in response to changes in the detection signals. The present invention can control the photovoltaic panel assembly to rotate about two intersecting axes to track incident light from a light source. The structure and control method are simple, and the photovoltaic panel assembly can self-adjust to the angle of light, thereby maximizing light energy utilization.
Description
Technical Field
The invention relates to the technical field of photovoltaics, in particular to an automatic control photovoltaic system and a control method thereof.
Background
Solar energy is one of the most widely covered energy sources, the theoretical annual energy production can reach 6000 times of human demand, and the solar energy is not limited by regions, and has rich resources and wide distribution. The photovoltaic power generation directly converts solar energy into electric energy through the semiconductor material, and the emission of carbon dioxide is reduced by about 1 ton per kilowatt photovoltaic system year, which is equivalent to the growth of 50 trees for the earth. The photovoltaic power generation does not depend on fuel combustion, has no greenhouse gas, waste gas or noise emission in the whole process, and is a real green energy source. photovoltaic power generation supports centralized power stations, distributed roof installations (such as rural roof distributed photovoltaic power stations) and building integration. The photovoltaic power generation in the world is rapidly developed due to the advantages of clean energy characteristics, high installation speed and the like.
At present, most installed photovoltaics adopt a fixed support, namely a photovoltaic panel can only face one direction, and the sun rises and falls every day, the photovoltaic panel of the fixed support is hardly capable of keeping the posture perpendicular to the irradiation light of sunlight, and the problems of insufficient illumination utilization, low power generation efficiency and the like exist. Although an automatic light-following photovoltaic system exists at present, the number of sensors is large, the algorithm is complex, and the photovoltaic panel can be nearly in a state perpendicular to the irradiation light of sunlight only by multiple times of correction.
Disclosure of Invention
The invention provides an automatic control photovoltaic system and a control method thereof for solving the technical problems in the prior art.
The invention adopts the technical proposal for solving the technical problems in the prior art that:
an automatic control photovoltaic system comprises a photovoltaic panel assembly, an electric detection system, a double-shaft driving system and a control system;
The photovoltaic panel assembly is used for converting light energy into electric energy and outputting the electric energy;
The electrical detection system is used for detecting electrical signals output by the photovoltaic panel assembly, wherein the electrical signals comprise voltage and/or current;
the double-shaft driving system is used for driving the photovoltaic panel assembly to rotate around two intersecting axes respectively;
The control system is used for receiving the detection signal from the electrical detection system and outputting a signal to control the action of the double-shaft driving system, so that the posture of the photovoltaic panel assembly is adjusted along with the change of the detection signal.
Further, the double-shaft driving system comprises a photovoltaic panel mounting frame, an upper support column, a hinged power center and a lower support column which are sequentially arranged from top to bottom, wherein the lower end of the lower support column is fixedly connected with the fixed base;
the photovoltaic panel mounting rack is used for fixing a photovoltaic panel assembly, is rectangular, is hinged with the upper end of the upper support column in a spherical manner, and is provided with four hinging seats A on the diagonal line, wherein the hinging seats A are arranged in pairs and are arranged in a symmetrical manner in the center;
The hinged power center comprises a spherical shell, a motor A, a motor B, four short swinging rods, four vertical connecting rods and a long swinging rod, wherein the motor A is an outer rotor motor, the outer rotor of the motor A is fixedly embedded in the spherical shell, the four short swinging rods are arranged symmetrically around the body center of the spherical shell, the two groups of short swinging rods are respectively called a first group of short swinging rods and a second group of short swinging rods, the axes of the first group of short swinging rods are parallel to one diagonal line of the photovoltaic panel mounting frame, the axes of the second group of short swinging rods are parallel to the other diagonal line of the photovoltaic panel mounting frame, one end of each of the two short swinging rods is fixedly connected with a stator of the motor A, the other end of each of the two short swinging rods is correspondingly hinged with two connecting rods, one end of each of the two short swinging rods is fixedly connected with the spherical shell, the other end of each of the two short swinging rods is correspondingly hinged with the other two connecting rods, the four connecting rods are correspondingly hinged with four hinged seats A, the center of the long swinging rods are hinged with a lower supporting column, the two ends connected with the first group of short swinging rods are correspondingly hinged with the two long ends, the center of the long swinging rods are fixedly connected with an output shaft of the motor B, and the motor B is fixedly connected with the outer shell of the supporting column is fixedly opposite to the supporting column;
the lower ends of the upper support columns and the upper ends of the lower support columns are hinged with the spherical shell balls.
Further, the four connecting rods are correspondingly hinged with the hinge seat A ball.
Further, a connecting rod connected with the long swing rod is hinged with the long swing rod through a ball, the middle part of the connecting rod is hinged with a corresponding short swing rod in the second group of short swing rods through a hinge pin shaft, and the first group of short swing rods are hinged with the corresponding connecting rod through the ball.
The double-shaft driving system further comprises a limiting device for limiting the spherical shell to move in the direction perpendicular to the axis of the lower supporting column, the limiting device comprises four vertical limiting columns fixedly connected between the upper supporting column and the lower supporting column, the four vertical limiting columns encircle the spherical shell, and four short swing rods correspondingly extend out of gaps among the four vertical limiting columns.
Further, a long hole passing through the long swing rod is formed in the upper portion of the lower support column, and a through hole passing through the output shaft of the motor B is formed in the side wall of the long hole.
The photovoltaic panel installation frame comprises a square frame and diagonal support bars arranged in the square frame in a diagonal mode, a hinging seat C is arranged in the center of the lower surface of the diagonal support bars, four hinging seats A are fixedly connected to the lower surface of the diagonal support bars, the hinging seats C and the hinging centers of the hinging seats A are in the same plane, one side of the photovoltaic panel installation frame is provided with a horizontal slot, the other side of the photovoltaic panel installation frame is provided with a fixed baffle, one side of the photovoltaic panel assembly is horizontally inserted into the slot, and the other side of the photovoltaic panel assembly is replaced by disassembling the fixed baffle.
Further, the fixed base adopts a composite spiral-prefabricated base foundation structure, and the composite spiral-prefabricated base foundation structure comprises a prefabricated base, a connecting joint and a spiral steel pipe which are sequentially connected from top to bottom, wherein:
The prefabricated base is prefabricated by high-strength concrete doped with glass fibers or carbon fibers and is prismatic or circular-table-shaped, wherein the circumferential surface of the prismatic or circular-table-shaped is provided with an annular groove or a spiral groove;
The top of the spiral steel pipe is provided with a flange A, and the surface of the spiral steel pipe is provided with spiral blades;
The connecting joint comprises an embedded steel sleeve embedded in the bottom of the prefabricated base, cross rib plates are arranged on the periphery of the embedded steel sleeve, and a flange plate B connected with the flange plate A is arranged at the bottom of the embedded steel sleeve.
The invention also provides a control method for automatically controlling the photovoltaic system, which comprises the following steps:
Step 1, initializing a double-shaft driving system to enable a photovoltaic panel assembly to be in a horizontal state, wherein in two diagonal lines of a photovoltaic panel mounting rack, the diagonal line parallel to the axis of a first group of short swing rods is a first diagonal line, and the diagonal line parallel to the axis of a second group of short swing rods is a second diagonal line;
Step2, the control system outputs a signal to control the motor B to work, so that an output shaft of the motor B rotates relative to the outer shell of the motor B to drive the long swinging rod to rotate relative to the lower support column, the photovoltaic panel assembly is further driven to rotate around a second diagonal line by an angle along a direction through the connecting rod, and meanwhile the control system receives a detection signal from the electrical detection system;
if the detected current or voltage increases, the control system outputs a signal to enable the motor B to continue to rotate, and drives the photovoltaic panel assembly to continue to rotate along the direction, until the detected current or voltage starts to decrease, the motor B is enabled to stop rotating;
If the detected current or voltage is reduced, the control system outputs a signal to enable the motor B to rotate reversely, so that the photovoltaic panel assembly is driven to rotate in the opposite direction of the direction, and the motor B is enabled to stop rotating until the detected current or voltage starts to be reduced;
At this time, the first diagonal of the photovoltaic panel mounting rack is perpendicular to the incident light;
step 3, the control system outputs a signal to control the motor A to work, so that the shell of the motor A rotates relative to the stator of the motor A, the second group of short swing rods are driven to rotate relative to the first group of short swing rods, the photovoltaic panel assembly is further driven to rotate around a first diagonal line by an angle along a direction through the connecting rod, and meanwhile the control system receives a detection signal from the electrical detection system;
If the detected current or voltage increases, the control system outputs a signal to enable the motor A to continue to rotate, and drives the photovoltaic panel assembly to continue to rotate along the direction, until the detected current or voltage starts to decrease, the motor A is enabled to stop rotating;
If the detected current or voltage is reduced, the control system outputs a signal to enable the motor A to rotate reversely, so that the photovoltaic panel assembly is driven to rotate in the opposite direction of the direction, and the motor A is enabled to stop rotating until the detected current or voltage starts to be reduced;
at this time, the first diagonal and the second diagonal of the photovoltaic panel mounting rack are perpendicular to the incident light.
Further, the motor A and the motor B are servo motors or stepping motors, and the control system outputs signals to control the motor A and the motor B to rotate according to set step angles.
The invention has the advantages and positive effects that:
(1) According to the principle that two intersecting axes determine a plane, two motors are used for controlling the photovoltaic panel to rotate around the two intersecting axes respectively, so that the plane where the rotated photovoltaic panel is located is perpendicular to light rays, the purpose of tracking incident light of a light source is achieved, more light energy utilization is achieved, and the power generation efficiency is improved.
(2) The electric detection system only detects the change of current or voltage through one type of sensor, provides a command for the rotation of the two motor control panels, realizes automatic control through control methods such as correction after random rotation trial-and-error, does not need to set angle sensors for detecting the sun incidence angle and the rotation angle of the photovoltaic panel assembly, and gets rid of dependence on complex algorithms and geographical data of installation places while reducing the number of the sensors.
(3) The photovoltaic panel assembly comprises a spherical shell, a motor A, a motor B, four short swinging rods, four vertical connecting rods and a long swinging rod, wherein the motor A and the motor B drive the corresponding short swinging rods and the long swinging rods to rotate, so that the photovoltaic panel assembly is driven to rotate around two intersecting axes respectively, the two short swinging rods, the two vertical connecting rods and the long swinging rods are connected in a hinged mode to form a double-parallelogram plane connecting rod linkage mechanism, when the motor B drives the photovoltaic panel assembly to rotate around one of the two intersecting axes, the motor A is synchronously driven to rotate, the other of the two intersecting axes of the photovoltaic panel assembly is guaranteed to be parallel to the motor A, when the motor A drives the photovoltaic panel assembly to rotate around the other axis, the rotation angle of the motor A cannot be influenced, and the plane where the photovoltaic panel is located can be perpendicular to light rays through the two intersecting axes respectively, and multiple corrections are not needed.
(4) By arranging four vertical limit posts fixedly connected between the upper support post and the lower support post, the upper support post and the lower support post can be relatively fixed, the upper support post supports the photovoltaic panel assembly, the spherical shell can be positioned in the range of four corners enclosed by the four vertical limit posts, the four vertical limit posts are respectively positioned in included angles formed by two adjacent short swing rods in the four short swing rods, and the spherical shell is limited when moving in the plane direction perpendicular to the axis of the lower support post 4 due to the mutual limitation of the four vertical limit posts and the four short swing rods. The four vertical limit posts can be connected in a welding mode, a threaded connection mode and the like, and the structure is simple and the assembly is convenient.
(5) The maintenance, the maintenance and the replacement of the photovoltaic panel can be realized through the disassembly and the assembly of the fixed baffle of the photovoltaic panel bracket, and the later use cost is reduced.
(6) The invention has simple integral structure and simple control method.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an automatic control photovoltaic system according to the present invention;
FIG. 2 is an exploded view of the overall structure of an automatically controlled photovoltaic system according to the present invention;
FIG. 3 is a split exploded view of a photovoltaic panel mount and a photovoltaic panel assembly;
FIG. 4 is a schematic top view of a photovoltaic panel mount;
FIG. 5 is a schematic view of a photovoltaic panel mount from below;
FIG. 6 is a schematic view of a photovoltaic panel assembly retainer plate;
FIG. 7 is a schematic view of the inverted upper support column structure;
FIG. 8 is a schematic diagram of the connection structure of the spherical shell and four short swing rods;
Fig. 9 is a schematic diagram of a semi-cut perspective structure of a motor a;
FIG. 10 is a schematic view of a lower support column and foundation structure;
FIG. 11 is a schematic diagram of the connection structure of the long swing rod and the output shaft of the motor B;
FIG. 12 is an exploded view of a base structure;
FIG. 13 is a schematic view of a link structure connected to a second set of short pendulum rods;
FIG. 14 is a schematic view of a link structure connected to a first set of short pendulum rods;
Fig. 15 is a flowchart of a control method of an automatically controlled photovoltaic system according to the present invention.
In the figure:
1. the photovoltaic panel comprises a photovoltaic panel assembly, an upper support column, a driving structure which rotates around a first diagonal, a lower support column, a driving structure which rotates around a second diagonal, a vertical limit column, a fixed base, a second group of connecting rods, a first group of connecting rods and a second group of connecting rods.
11. The photovoltaic panel mounting frame comprises a photovoltaic panel mounting frame body, a fixing baffle plate, a photovoltaic panel and fixing bolts.
21. An upper support column upper hinge joint, an upper support column 22, an upper support column 23, and an upper support column lower hinge joint. ;
31. Spherical shell, 32, III short swing rod, 33, IV short swing rod, 34, I short swing rod, 35, II short swing rod, 36, hinging seat D, 37, hinging seat E, 311, outer rotor of motor A, 312 and stator of motor A.
41. The device comprises a lower support column body, a lower support column upper hinge joint 42, a long hole passing through a long swing rod 43, a bearing hole 44.
51. The device comprises a long swing rod, a motor B, a hinge seat F, a motor B and an output shaft of the motor B.
71. The device comprises a prefabricated base, a flange plate A, a flange bolt A, a screw steel pipe B, a flange plate B and a flange plate B.
8A1, III connecting rod, 8A1-1, III connecting rod upper joint, 8A2, IV connecting rod, 8B1, I connecting rod, 8B1-1, I connecting rod lower joint, 8B1-2, hinge pin shaft hole, 8B2, II connecting rod.
111. The frame comprises a frame skeleton, a frame panel support, 113, a hinging seat C, 114, an inclined support bar, 115, a hinging seat A, 115-1, a first hinging seat A, 115-2, a second hinging seat A, 115-3, a third hinging seat A, 115-4, a fourth hinging seat A, 116, a screw hole, 117 and a transverse slot.
121. And (5) a bolt through hole.
Detailed Description
The present invention will be described in detail below with reference to the drawings in conjunction with the embodiments, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only and are not intended to limit the present invention.
In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, only for convenience in describing the present invention, and do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "coupled" and "connected" as used herein are to be construed broadly, and may be, for example, fixedly coupled or detachably coupled, directly coupled or indirectly coupled through intermediate members, or electrically coupled or signal transmitting, as will be apparent to those of ordinary skill in the art.
Referring to fig. 1 to 15, an automatic control photovoltaic system includes a photovoltaic panel assembly 1, an electrical detection system, a biaxial drive system and a control system;
The photovoltaic panel assembly 1 is used for converting light energy into electric energy and outputting the electric energy.
The electrical detection system is used for detecting electrical signals output by the photovoltaic panel assembly 1, wherein the electrical signals comprise voltage and/or current.
The dual-shaft driving system is used for driving the photovoltaic panel assembly 1 to rotate around two intersecting axes respectively, wherein the two axes are parallel to the surface of the photovoltaic panel assembly 1 and intersect at the center of the photovoltaic panel assembly 1.
The control system is used for receiving the detection signal from the electrical detection system and outputting a signal to control the action of the biaxial drive system, so that the posture of the photovoltaic panel assembly 1 is adjusted along with the change of the detection signal. That is, the control system adjusts the output signal according to the detection signal of the electrical detection system, so that the biaxial drive system drives the photovoltaic panel assembly 1 to rotate around one of two intersecting axes, and then adjusts the posture of the photovoltaic panel assembly 1.
The posture of the photovoltaic panel assembly 1 refers to a rotation state of the photovoltaic panel assembly 1 in a three-dimensional space.
The photovoltaic panel assembly 1 changes its attitude by rotating about two intersecting axes as the detection signal changes.
The electrical detection system may include a current sensor for measuring an output current of the photovoltaic panel assembly 1, a voltage sensor for measuring an open-circuit voltage of the photovoltaic panel assembly 1, a power meter for measuring an output electrical energy of the photovoltaic panel assembly 1.
The control system can comprise devices and systems with microprocessors, such as a PLC, a singlechip and the like, can process and calculate detection signals of the electrical detection system by the PLC and the singlechip, and output corresponding electric signals to control the action of the double-shaft driving system.
A plurality of photovoltaic panels 13 are integrated together to constitute the photovoltaic panel assembly 1.
Preferably, the double-shaft driving system can comprise a photovoltaic panel mounting frame 11, an upper support column 2, a hinged power center and a lower support column 4 which are sequentially arranged from top to bottom, wherein the lower end of the lower support column 4 is fixedly connected with a fixed base 7.
The photovoltaic panel mounting frame 11 is used for fixing the photovoltaic panel assembly 1, the photovoltaic panel mounting frame can be rectangular, the rectangle comprises a square, the center of the rectangle is in spherical hinge connection with the upper end of the upper support column 2, four hinge seats A115 can be arranged on the diagonal line of the photovoltaic panel mounting frame 11, and the hinge seats A115 are arranged in pairs and are arranged in a symmetrical mode.
The hinged power center can comprise a spherical shell 31, a motor A, a motor B52, four short swing rods, four vertical connecting rods and one long swing rod 51; the motor A is an outer rotor motor, and an outer rotor 311 of the motor A is fixedly embedded in the spherical shell 31; the four short swinging rods are arranged symmetrically by taking the body center of the spherical shell 31 as the center, the two short swinging rods are respectively called a first group of short swinging rods and a second group of short swinging rods, the axis of the first group of short swinging rods is parallel to one diagonal line of the photovoltaic panel mounting frame 11, the axis of the second group of short swinging rods is parallel to the other diagonal line of the photovoltaic panel mounting frame 11, one end of each of the two short swinging rods in the first group of short swinging rods is fixedly connected with a stator 312 of a motor A, the other end of each of the two short swinging rods is correspondingly hinged with two connecting rods, the connecting rods connected with the first group of short swinging rods are respectively an I connecting rod 8B1 and an II connecting rod 8B2, one end of each of the two short swinging rods in the second group of short swinging rods is fixedly connected with the spherical shell 31, the other end of each of the two short swinging rods is correspondingly hinged with the other two connecting rods, the connecting rods connected with the second group of short swinging rods are respectively a III connecting rod 8A1 and an IV connecting rod 8A2, the four connecting rods are correspondingly hinged with four hinging seats A115, the center of each long swinging rod 51 is hinged with a lower supporting column 4, the two connecting rods are correspondingly hinged with a long motor 51, the two ends connected with the first group of short swinging rods are correspondingly hinged with the motor A, the center of the two output shafts are fixedly connected with the center of the supporting column 54B 52 is fixedly connected with the center of the supporting column 52.
The lower end of the upper support column 2 and the upper end of the lower support column 4 are in spherical hinge connection with the spherical shell 31.
The lower end surface of the upper support column 2 and the upper end surface of the lower support column 4 may be spherical concave surfaces a that mate with the spherical surfaces of the spherical shell 31.
Of the two diagonal lines of the photovoltaic panel mounting bracket 11, the diagonal line parallel to the axis of the first group of short swing rods is a first diagonal line, and the diagonal line parallel to the axis of the second group of short swing rods is a second diagonal line.
The spherical shell 31, the motor A, four short swing rods and two vertical connecting rods are combined to form the rotary driving structure 3 around the first diagonal line.
The motor B52, two vertical links and one long swing link 51 are combined to form the rotation driving structure 5 around the second diagonal line.
The motor A is an external rotor motor with a stator shaft, and one end of each of the two short swing rods in the first group of short swing rods is fixedly connected with the stator shaft of the motor A through a coupler correspondingly.
The motor A can also be a double-output-shaft inner rotor motor, when the motor A is a double-output-shaft inner rotor motor, the outer shell of the motor A is fixedly embedded in the spherical shell 31, one end of each of the two short swing rods in the first group of short swing rods is fixedly connected with the two output shafts of the motor A through a coupler, and the other end of each of the two short swing rods is hinged with two connecting rods.
Other configurations of the dual-axis drive system are possible to rotate the photovoltaic panel assembly 1 about two diagonals.
Preferably, the four links may be ball-hinged with the hinge mount a115 correspondingly. The utility model can also be hinged by adopting a hinge connection mode and a universal hinge mode.
Preferably, the link connected to the long swing link 51 may be ball-hinged to the long swing link 51, and the middle portion thereof may be hinged to a corresponding short swing link of the second group of short swing links through a hinge pin. The link and the long swing link 51 may be hinged to each other by a universal hinge.
Preferably, the first group of short swing rods are hinged with the corresponding connecting rods in a spherical hinge mode. The first group of short swinging rods can be hinged with the corresponding connecting rods in a hinged connection mode and a universal hinge mode.
Preferably, the biaxial driving system further comprises a limiting device for limiting the movement of the spherical shell 31 in the direction perpendicular to the axis of the lower support column 4, the limiting device comprises four vertical limiting columns 6 fixedly connected between the upper support column 2 and the lower support column 4, the four vertical limiting columns 6 encircle the spherical shell 31, namely, the four vertical limiting columns 6 are circumferentially distributed along the spherical shell 31, and four short swing rods correspondingly extend out of gaps among the four vertical limiting columns 6. The four vertical limit posts 6 can be uniformly distributed along the circumference of the spherical shell 31.
The two ends of the four vertical limit columns 6 are respectively connected with the upper support column 2 and the lower support column 4, so that the spherical shell 31 can rotate, the upper support column 2 and the lower support column 4 are firmly connected, and the connection mode of the vertical limit columns 6 and the upper support column 2 and the lower support column 4 can be welding or bolting.
The sides of the four vertical limiting columns 6 facing the spherical shell 31 can be arc-shaped surfaces, and the spherical centers of the spherical shell 31 are limited to deviate from the axes of the upper supporting column 2 and the lower supporting column 4.
Preferably, the motor B52 housing is fixed relative to the lower support column 4, a long hole 43 passing through the long swing rod may be formed at the upper portion of the lower support column 4, and a through hole passing through the motor B output shaft 54 may be formed at the side wall of the long hole. The motor B output shaft 54 is parallel to one diagonal line of the photovoltaic panel assembly 1.
Preferably, the photovoltaic panel mounting frame 11 comprises a square frame and diagonal support bars 114 arranged in the square frame in a diagonal manner, a hinging seat C113 is arranged in the center of the lower surface of the diagonal support bars 114, four hinging seats A115 are fixedly connected to the lower surface of the diagonal support bars 114, the hinging centers of the hinging seats C113 and the hinging centers of the four hinging seats A115 are located on the same plane, a transverse slot 117 is formed in one side of the photovoltaic panel mounting frame 11, a fixed baffle 12 is arranged on the other side of the photovoltaic panel mounting frame 11, one side of the photovoltaic panel assembly 1 is inserted into the transverse slot 117, and the other side of the photovoltaic panel assembly is replaced by disassembling and assembling the fixed baffle 12.
Preferably, the fixed base 7 may employ a composite screw-prefabricated base foundation structure, which may include a prefabricated base 71, a connection joint and a screw steel pipe 74 connected in sequence from top to bottom, wherein:
The prefabricated base 71 can be prefabricated by high-strength concrete doped with glass fibers or carbon fibers, and can be in a prismatic table shape or a round table shape with annular grooves or spiral grooves on the peripheral side surface, and a round hole for installing the lower support column 4 is reserved at the upper part of the prefabricated base. The cross section of the support column is hollow square or round, the upper surface side length of the prismatic table or the diameter of the upper surface of the round table is 400-600 mm, the lower surface side length of the prismatic table or the diameter of the lower surface of the round table is 250-350 mm, and a round hole with the diameter of 100-150mm is reserved at the upper part and is used for installing the lower support column 4.
The upper prefabricated base 71 has the advantages of factory standardized production, 30 percent weight reduction, convenient transportation and material saving of the hollow structure.
The upper prefabricated base 71 with the spiral groove or the annular groove, the cross section of which is round and the longitudinal section of which is trapezoidal, is adopted as the buried foundation, and compared with the upper prefabricated base 71 with the square cross section, the longitudinal section of which is square and without the spiral groove, the upper prefabricated base 71 is adopted as the buried foundation, the excavation mode is more convenient, backfill is carried out, and the soil pressure is increased. The anti-overturning and anti-pulling forces are greatly improved compared with the conventional foundation.
The spiral steel tube 74 can be a galvanized steel tube with the diameter of 200-250mm, the top of the spiral steel tube can be provided with a flange A72, the surface of the spiral steel tube can be provided with spiral blades, and the outer diameter of the spiral blades can be gradually reduced from top to bottom. The diameter of the spiral blade is 400-600mm, and the thickness of the blade is 8-12mm.
The lower helical steel tube 74 has the advantage that the helical blades provide resistance to pulling, and the steel tube can penetrate into hard soil layers to improve bearing capacity.
The connecting joint can comprise an embedded steel sleeve embedded in the bottom of the prefabricated base, the periphery of the embedded steel sleeve can be provided with cross rib plates, and the bottom of the embedded steel sleeve is provided with a flange plate B75 connected with the flange plate A72.
Flange B75 is rigidly connected to flange a72 by high strength flange bolts 73. Epoxy resin is poured into the rigid connection part of the flange plate B75 and the flange plate A72 for corrosion prevention. The connecting joint structure has the advantages that the cross rib plates are additionally arranged to enhance the shearing resistance, and stress concentration is avoided.
The composite spiral-prefabricated base can be made into a combined standardized structure, the application scene of the composite spiral-prefabricated base is wide, and the upper prefabricated base 71 can be directly applicable to sloping fields, water surfaces or flat lands. The lower spiral steel tube 74 sections can be combined according to geological conditions, the lower part of the soft soil area is provided with the longer lower spiral steel tube 74, the prefabricated base 71 and the lower spiral section are adopted for anchoring together, and the rock area can be anchored by adopting the shorter lower spiral steel tube 74 or not connected with the lower spiral steel tube 74 and mainly comprises the prefabricated base 71.
The manufacturing and anchoring construction method of the composite spiral-prefabricated base comprises the following steps:
The prefabricated upper base comprises prefabricated upper prefabricated bases of prismatic or circular truncated cone hollow structures, wherein annular grooves or spiral grooves are formed in the peripheral side surfaces of the prefabricated high-strength concrete with glass fibers or carbon fibers doped.
The upper prefabricated foundation may be in place directly or after excavation.
When the foundation is buried deeply, the lower spiral steel pipe 74 sections can be combined according to geological conditions, the lower part of the soft soil area is provided with the longer lower spiral steel pipe 74, the upper prefabricated base 71 and the lower spiral section are adopted for anchoring together, and the rock area can be anchored by adopting the shorter lower spiral steel pipe 74 or not connected with the lower spiral steel pipe 74 and mainly by adopting the upper prefabricated base 71.
The lower spiral steel pipe is constructed, the spiral steel pipe 74 can be a galvanized steel pipe with the diameter of 200-250mm, the top of the spiral steel pipe can be provided with a flange A72, the surface of the spiral steel pipe can be provided with spiral blades, and the outer diameter of the spiral blades can be gradually reduced from top to bottom. The diameter of the spiral blade is 400-600mm, and the thickness of the blade is 8-12mm.
The upper prefabricated base is anchored with the lower spiral steel pipe and comprises an embedded steel sleeve embedded in the bottom of the prefabricated base, cross rib plates can be arranged on the periphery of the embedded steel sleeve, and a flange plate B75 connected with a flange plate A72 is arranged at the bottom of the embedded steel sleeve. Flange B75 is rigidly connected to flange a72 by high strength flange bolts 73. Epoxy resin is poured into the rigid connection part of the flange plate B75 and the flange plate A72 for corrosion prevention.
And backfilling earthwork.
The invention also provides a control method for automatically controlling the photovoltaic system, which comprises the following steps:
And step 1, initializing a double-shaft driving system to enable the photovoltaic panel assembly 1 to be in a horizontal state, wherein the diagonal line parallel to the axis of the first group of short swing rods is a first diagonal line, and the diagonal line parallel to the axis of the second group of short swing rods is a second diagonal line in two diagonal lines of the photovoltaic panel mounting frame 11.
And 2, the control system outputs a signal to control the motor B52 to work, so that an output shaft 54 of the motor B rotates relative to the outer shell of the motor B, the long swinging rod 51 is driven to rotate relative to the lower support column 4, the photovoltaic panel assembly 1 is further driven to rotate around a second diagonal line by an angle along a direction through the connecting rod, and meanwhile, the control system receives a detection signal from the electrical detection system.
If the detected current or voltage increases, the control system outputs a signal to enable the motor B52 to continue to rotate, so that the photovoltaic panel assembly 1 is driven to continue to rotate along the direction, and the motor B52 is enabled to stop rotating until the detected current or voltage starts to decrease.
If the detected current or voltage decreases, the control system outputs a signal to reverse the motor B52, and drives the photovoltaic panel assembly 1 to rotate in the opposite direction of the direction, until the detected current or voltage starts to decrease, and the motor B52 is stopped rotating.
At this time, the first diagonal of the photovoltaic panel mount 11 is perpendicular to the incident light.
And 3, outputting a signal by the control system, controlling the motor A to work, enabling the shell of the motor A to rotate relative to the stator of the motor A, driving the second group of short swing rods to rotate relative to the first group of short swing rods, further driving the photovoltaic panel assembly 1 to rotate around the first diagonal line by an angle along a direction through the connecting rod, and simultaneously receiving a detection signal from the electrical detection system by the control system.
If the detected current or voltage increases, the control system outputs a signal to enable the motor A to continue to rotate, so that the photovoltaic panel assembly 1 is driven to continue to rotate along the direction, and the motor A is enabled to stop rotating until the detected current or voltage starts to decrease.
If the detected current or voltage decreases, the control system outputs a signal to reverse the motor a, and drives the photovoltaic panel assembly 1 to rotate in the opposite direction of the direction, until the detected current or voltage starts to decrease, the motor a is stopped rotating.
At this time, the first diagonal line and the second diagonal line of the photovoltaic panel mounting rack 11 are perpendicular to the incident light.
Preferably, the motor A and the motor B52 can be servo motors or stepping motors, and the control system outputs signals to control the motor A and the motor B52 to rotate according to a set step angle.
The rotation range of the photovoltaic panel assembly 1 around the first diagonal line and the first diagonal line is-90 degrees to 90 degrees, and the step angle can be set to be 1 degrees to 10 degrees.
The structure, workflow and principle of operation of the present invention are further described in the following with a preferred embodiment of the present invention:
An automatic control photovoltaic system comprises a photovoltaic panel assembly 1, an electric detection system, a double-shaft driving system and a control system, wherein the photovoltaic panel assembly 1 is used for converting light energy into electric energy and outputting the electric energy, the electric detection system is used for detecting electric signals output by the photovoltaic panel assembly 1, the electric signals comprise voltage and/or current, the double-shaft driving system is used for driving the photovoltaic panel assembly 1 to rotate around two intersecting axes respectively, the two axes are parallel to the surface of the photovoltaic panel assembly 1 and intersect at the center of the photovoltaic panel assembly 1, and the control system is used for receiving detection signals from the electric detection system and outputting the signals to control the action of the double-shaft driving system, so that the photovoltaic panel assembly 1 adjusts the posture along with the change of the detection signals.
Wherein the electrical detection system comprises a current sensor for measuring the output current of the photovoltaic panel assembly 1 and a voltage sensor for measuring the open-circuit voltage of the photovoltaic panel assembly 1.
The double-shaft driving system comprises a photovoltaic panel mounting frame 11, an upper support column 2, a hinged power center and a lower support column 4 which are sequentially arranged from top to bottom, wherein the lower end of the lower support column 4 can be fixedly connected with a fixed base 7, and the fixed base 7 can be arranged in a concave-convex shape so as to enhance the stability of the photovoltaic system.
The photovoltaic panel mounting frame 11 is used for fixing the photovoltaic panel assembly 1, is rectangular, is hinged with the upper end of the upper support column 2 in a spherical mode, is provided with four hinging seats A115 on the diagonal line, and is formed by two groups of hinging seats A115 and is arranged in a central symmetry mode.
The hinged power center comprises a spherical shell 31, a motor A, a motor B52, four short swinging rods, four vertical connecting rods and a long swinging rod 51, wherein the motor A is an outer rotor motor, an outer rotor 311 of the motor A is fixedly embedded in the spherical shell 31, the four short swinging rods are overlapped in pairs, each group of short swinging rods is symmetrically arranged by taking the body center of the spherical shell 31 as a center, the two groups of short swinging rods are respectively called a first group of short swinging rods and a second group of short swinging rods, the axis of the first group of short swinging rods is parallel to one diagonal line of the photovoltaic panel mounting frame 11, the axis of the second group of short swinging rods is parallel to the other diagonal line of the photovoltaic panel mounting frame 11, one end of each of the two short swinging rods in the first group of short swinging rods is fixedly connected with a stator 312 of the motor A, the other end of each of the two short swinging rods is fixedly connected with two connecting rods, one end of each of the two short swinging rods in the second group of the second short swinging rods is fixedly connected with the spherical shell 31, the other end of each of the two short swinging rods is in a spherical shell is in a spherical mode, the four connecting rods are in one-to-one correspondence with four hinging seats A115, the center of the two short swinging rods are hinged with a lower 4 supporting columns, the axes of the two long swinging rods are fixedly connected with the corresponding output shafts of the motor B4 are fixedly connected with the corresponding output shafts 54B.
The lower end surface of the upper support and the upper end surface of the lower support may be spherical concave surfaces a that mate with the spherical surfaces of the spherical shell 31.
The links connected to the first set of short links are referred to as first set of links 8B, and the links connected to the second set of short links are referred to as second set of links 8A.
The lower end of the upper support column 2 and the upper end of the lower support column 4 are in spherical hinge connection with the spherical shell 31.
The upper support column 2 and the lower support column 4 support the photovoltaic panel assembly 1, the first group of short swing rods are parallel to one diagonal line of the photovoltaic panel assembly 1, the diagonal line is defined as a first diagonal line, the second group of short swing rods are parallel to the other diagonal line of the photovoltaic panel assembly 1, and the diagonal line is defined as a second diagonal line.
When the motor A is an outer rotor motor, one end of two short swing rods in the first group of short swing rods are correspondingly fixedly connected with a stator 312 of the motor A, when the motor A is an inner rotor motor with double output shafts, one end of the first group of short swing rods is correspondingly fixedly connected with two output shafts of the motor A, one end of the second group of short swing rods is relatively fixed with a shell of the motor A, the other end of the second group of short swing rods is correspondingly hinged with other two connecting rods, and when the motor A works, the second group of short swing rods rotate relative to the first group of short swing rods and drive the two connecting rods connected with the second group of short swing rods to move up and down, so that the photovoltaic panel assembly 1 rotates around a first diagonal line.
Two connecting rods connected with the first group of short swing rods are correspondingly hinged with two ends of the long swing rod 51, the center of the long swing rod 51 is fixedly connected with an output shaft 54 of the motor B, and the shell of the motor B52 is relatively fixed with the lower support column 4. When the motor B52 works, the long swing rod 51 rotates relative to the lower support column 4, and drives the two connecting rods connected with the first group of short swing rods to move up and down, so that the photovoltaic panel assembly 1 rotates around the second diagonal line.
The double-shaft driving system further comprises a limiting device for limiting the spherical shell 31 to move in the direction perpendicular to the axis of the lower support column 4, wherein the limiting device comprises four vertical limiting columns 6 fixedly connected between the upper support column 2 and the lower support column 4, the four vertical limiting columns 6 encircle the spherical shell 31, and four short swing rods correspondingly extend out of gaps among the four vertical limiting columns 6.
Because the spherical shell 31 is located in the four corners enclosed by the four vertical limit posts, the four vertical limit posts 6 are respectively located in the included angles formed by two adjacent short swing rods in the four short swing rods, and because the four vertical limit posts 6 and the four short swing rods are mutually limited, the spherical shell 31 is limited when moving in the plane direction perpendicular to the axis of the lower support post 4.
The buried foundation provides installation stability for the photovoltaic system.
The center of the lower surface of the inclined support bar 114 is provided with a hinging seat C113, four hinging seats A115 are fixedly connected to the lower surface of the inclined support bar 114, the hinging centers of the hinging seats C113 and the hinging centers of the four hinging seats A115 are in the same plane, one side of the photovoltaic panel mounting frame 11 is provided with a transverse slot 117, the other side is provided with a fixed baffle 12, one side of the photovoltaic panel assembly 1 is inserted into the transverse slot 117, and the other side of the photovoltaic panel assembly is replaced by disassembling and assembling the fixed baffle 12.
The photovoltaic panel assembly 1 is arranged on the photovoltaic panel installation frame 11, the photovoltaic panel installation frame 11 comprises a square frame framework 111, a frame panel support 112, diagonal support bars 114 and a fixed baffle 12 which are diagonally arranged in the frame panel support 112, the frame panel support 112 is fixedly connected with the diagonal support bars 114 to provide support for the photovoltaic panel assembly 1, and the square frame framework 111 is fixed on the frame panel support 112.
The fixed baffle 12 is a detachable structure, is convenient for maintenance, replacement and disassembly of the photovoltaic panel assembly 1, and is fixed on the photovoltaic panel mounting frame 11 by using bolts, so that the photovoltaic panel assembly 1 is fixed.
The thickness of the frame panel support 112 is smaller than that of the square frame 111, a mounting surface is provided for the photovoltaic panel assembly 1, lateral constraint of the photovoltaic panel assembly 1 is achieved through the thickness of the square frame 111, the hinge seat C113 is hinged with the upper support column 2 in a ball mode, the photovoltaic panel assembly 1 is allowed to rotate by taking the ball center of the hinge seat C113 as the center, two groups of inclined support bars 114 are connected with four corners of the square frame 111 and are provided with four hinge seats A115, the rotation axes of the hinge seats A115 and the rotation axes of the hinge seats C113 are at the same height, the photovoltaic panel fixing baffle 12 is provided with bolt through holes 121, the bolt through holes 121 are through holes, screw holes 116 are formed in the square frame 111 corresponding to the bolt through holes 121, the fixing bolts 14 penetrate through the bolt through holes 121 and are screwed with the screw holes 116, and the fixing baffle 12 and the square frame 111 are fixed, and therefore the photovoltaic panel assembly 1 is fixed.
The lateral slot 117 on one side of the interior of the square frame provides a mounting and securing location for the photovoltaic panel assembly 1. One side of the photovoltaic panel assembly 1 is inserted into the transverse slot 117, and the other side is fixed by the fixed baffle 12.
The upper support column 2 comprises an upper support column upper hinge joint 21, an upper support column 22 and an upper support column lower hinge joint 23, wherein the upper support column upper hinge joint 21 is matched with a hinge seat C113 to provide vertical support for the photovoltaic panel assembly 1 and allow the photovoltaic panel assembly 1 to rotate, and the first group of short swing rod upper hinge supports are positioned on two sides of the bottom of the upper support column 2 to provide upper vertical constraint for the first group of short swing rods and allow the first group of short swing rods to rotate.
The first group of short swing rods comprises a first short swing rod 34 and a second short swing rod 35, and the second group of short swing rods comprises a third short swing rod 32 and a fourth short swing rod 33.
The four connecting rods are respectively called an I connecting rod 8B1, an II connecting rod 8B2, a III connecting rod 8A1 and an IV connecting rod 8A2.
The first group of links 8B includes an I-th link 8B1 and an II-th link 8B2, and the second group of links 8A includes a III-th link 8A1 and an IV-th link 8A2.
The I-th short swing rod 34 is hinged with the I-th connecting rod 8B1, the II-th short swing rod 35 is hinged with the II-th connecting rod 8B2, the III-th short swing rod 32 is hinged with the III-th connecting rod 8A1, and the IV-th short swing rod 33 is hinged with the IV-th connecting rod 8A 2.
One end of the first and second short swing rods 34 and 35 is provided with a hinging seat D36, and one end of the third and fourth short swing rods 32 and 33 is provided with a hinging seat E37.
Two ends of the I connecting rod 8B1, the II connecting rod 8B2, the III connecting rod 8A1 and the IV connecting rod 8A2 are respectively provided with a hinge joint.
The upper end joints of the I connecting rod 8B1, the II connecting rod 8B2, the III connecting rod 8A1 and the IV connecting rod 8A2 are hinged with the corresponding hinge seats A115.
The four hinge seats A are respectively called a first hinge seat A115-1 to a fourth hinge seat A115-4, the first hinge seat A115-1 and the second hinge seat A115-2 are positioned on the same diagonal line, and the third hinge seat A115-3 and the fourth hinge seat A115-4 are positioned on the same diagonal line.
The upper end joints of the II connecting rod 8B2, the I connecting rod 8B1, the IV connecting rod 8A2 and the III connecting rod 8A1 are hinged with the first hinging seat A115-1, the second hinging seat A115-2, the third hinging seat A115-3 and the fourth hinging seat A115-4 in a one-to-one correspondence. Namely, the upper joint 8A1-1 of the III-link is hinged with the fourth hinge base A115-4.
The middle parts of the first connecting rod 8B1 and the second connecting rod 8B2 are provided with hinge pin holes 8B1-2. The hinge seats D36 of the first and second short swing rods 34 and 35 are provided with hinge pins, the hinge pins penetrate through the hinge pin holes 8B1-2, the first connecting rod 8B1 rotates relative to the hinge seat D36 of the first short swing rod 34, and the second connecting rod 8B2 rotates relative to the hinge seat D36 of the second short swing rod 35.
The lower articulated joint 8B1-1 of the first connecting rod and the lower articulated joint 8B2 of the second connecting rod are correspondingly articulated with the articulated seat F53 of the long swinging rod 51.
The lower end hinge joint of the III-th connecting rod 8A1 and the lower end hinge joint of the IV-th connecting rod 8A2 are correspondingly hinged with the hinge seats E37 of the III-th short swinging rod 32 and the IV-th short swinging rod 33.
The spherical shell 31 is positioned between the upper support column 2 and the lower support column 4, the motor A is an outer rotor motor, the outer rotor 311 of the motor A is fixedly embedded in the spherical shell 31, when the motor A works, the III-th short swing rod 32 and the IV-th short swing rod 33 of the second group of short swing rods rotate relative to the first group of short swing rods, and the III-th connecting rod 8A1 and the IV-th connecting rod 8A2 are driven to move up and down.
The lower support column 4 comprises a lower support column 41 and an upper hinge joint 42 of the lower support column, a motor B52 shell is fixed relative to the lower support column 4, a long hole 43 passing through a long swing rod is formed in the upper portion of the lower support column 4, a through hole passing through an output shaft 54 of the motor B is formed in the side wall of the long hole, the through hole can be used as a bearing hole 44 for installing a bearing, and a fixed bearing outer ring can be installed in the through hole, so that the motor output shaft is fixedly connected with the bearing inner ring. The lower support column upper joint 42 is hinged with the spherical shell 31.
The long holes 43 of the long swing rods provide space for the long swing rods 51 to be installed and rotated, and the axis of the long swing rods 51 is parallel to the axis of the first group of short swing rods. The ratio of the length of the long hole in the axial direction of the lower support column 4 to the hole depth of the long hole is positively correlated with the rotation angle range of the photovoltaic panel mounting bracket 11.
The hinge seat a115, the spherical shell 31, the hinge seat C113, the hinge seat E37, and the hinge seat F53 may be spherical hinge seats, and may have spherical concave surfaces thereon, and the corresponding connecting joints are spherical hinge joints.
The components and devices of the photovoltaic panel assembly 1, the electrical detection system, the current sensor, the control system, the spherical shell 31, the motor a, the motor B52, the four short swing rods, the four vertical connecting rods, the one long swing rod 51 and the like can be all components and devices applicable to the prior art, or components and devices applicable to the prior art, and the wiring can be manufactured and installed by adopting the prior art.
The control method for automatically controlling the photovoltaic system comprises the following steps:
And step 1, initializing a double-shaft driving system to enable the photovoltaic panel assembly 1 to be in a horizontal state, wherein the diagonal line parallel to the axis of the first group of short swing rods is a first diagonal line, and the diagonal line parallel to the axis of the second group of short swing rods is a second diagonal line in two diagonal lines of the photovoltaic panel mounting frame 11.
And 2, the control system outputs a signal to control the motor B52 to work, so that an output shaft 54 of the motor B rotates relative to the outer shell of the motor B, the long swinging rod 51 is driven to rotate relative to the lower support column 4, the photovoltaic panel assembly 1 is further driven to rotate around a second diagonal line by an angle along a direction through the connecting rod, and meanwhile, the control system receives a detection signal from the electrical detection system.
If the detected current or voltage increases, the control system outputs a signal to enable the motor B52 to continue to rotate, so that the photovoltaic panel assembly 1 is driven to continue to rotate along the direction, and the motor B52 is enabled to stop rotating until the detected current or voltage starts to decrease.
If the detected current or voltage decreases, the control system outputs a signal to reverse the motor B52, and drives the photovoltaic panel assembly 1 to rotate in the opposite direction of the direction, until the detected current or voltage starts to decrease, and the motor B52 is stopped rotating.
At this time, the first diagonal of the photovoltaic panel mount 11 is perpendicular to the incident light.
And 3, outputting a signal by the control system, controlling the motor A to work, enabling the shell of the motor A to rotate relative to the stator of the motor A, driving the second group of short swing rods to rotate relative to the first group of short swing rods, further driving the photovoltaic panel assembly 1 to rotate around the first diagonal line by an angle along a direction through the connecting rod, and simultaneously receiving a detection signal from the electrical detection system by the control system.
If the detected current or voltage increases, the control system outputs a signal to enable the motor A to continue to rotate, so that the photovoltaic panel assembly 1 is driven to continue to rotate along the direction, and the motor A is enabled to stop rotating until the detected current or voltage starts to decrease.
If the detected current or voltage decreases, the control system outputs a signal to reverse the motor a, and drives the photovoltaic panel assembly 1 to rotate in the opposite direction of the direction, until the detected current or voltage starts to decrease, the motor a is stopped rotating.
At this time, the first diagonal line and the second diagonal line of the photovoltaic panel mount 11 are perpendicular to the incident light.
The above-described embodiments are only for illustrating the technical spirit and features of the present invention, and it is intended to enable those skilled in the art to understand the content of the present invention and to implement it accordingly, and the scope of the present invention is not limited to the embodiments, i.e. equivalent changes or modifications to the spirit of the present invention are still within the scope of the present invention.
Claims (9)
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| CN218829775U (en) * | 2022-11-12 | 2023-04-07 | 唐山中赢光伏电力科技有限公司 | A photovoltaic installation structure that can be adjusted to rotate with the sun |
| CN116599438A (en) * | 2023-04-13 | 2023-08-15 | 华能新疆能源开发有限公司新能源东疆分公司 | A photovoltaic power generation automatic tracking control method and a photovoltaic power generation automatic tracking device |
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| CN201467026U (en) * | 2009-03-19 | 2010-05-12 | 浙江海辰空间新能源有限公司 | Fixed-sun automatic tracking photovoltaic generating system |
| CN201917830U (en) * | 2011-01-20 | 2011-08-03 | 许启明 | A three-legged fixed two-axis fully automatic solar tracker device |
| CN106253798B (en) * | 2016-08-31 | 2018-12-28 | 浙江宝威电气有限公司 | It is a kind of to follow the photovoltaic generating system for shining upon direction rotation automatically |
| CN119218372A (en) * | 2023-06-29 | 2024-12-31 | 国家能源投资集团有限责任公司 | Offshore photovoltaic platform |
| CN119045540B (en) * | 2024-10-30 | 2025-03-14 | 浙江星煜机电科技股份有限公司 | Photovoltaic tracking bracket and control system and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN218829775U (en) * | 2022-11-12 | 2023-04-07 | 唐山中赢光伏电力科技有限公司 | A photovoltaic installation structure that can be adjusted to rotate with the sun |
| CN116599438A (en) * | 2023-04-13 | 2023-08-15 | 华能新疆能源开发有限公司新能源东疆分公司 | A photovoltaic power generation automatic tracking control method and a photovoltaic power generation automatic tracking device |
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