CN118944151A - Inertia flywheel system, starting method, storage medium and computer program product - Google Patents
Inertia flywheel system, starting method, storage medium and computer program product Download PDFInfo
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- CN118944151A CN118944151A CN202410871193.1A CN202410871193A CN118944151A CN 118944151 A CN118944151 A CN 118944151A CN 202410871193 A CN202410871193 A CN 202410871193A CN 118944151 A CN118944151 A CN 118944151A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/30—Arrangements for balancing of the load in a network by storage of energy using dynamo-electric machines coupled to flywheels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/002—Flicker reduction, e.g. compensation of flicker introduced by non-linear load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1885—Arrangements for adjusting, eliminating or compensating reactive power in networks using rotating means, e.g. synchronous generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
- H02J3/241—The oscillation concerning frequency
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
本申请涉及储能技术领域，特别涉及一种惯量飞轮系统、启动方法、存储介质及计算机程序产品，其中，系统包括：飞轮和辅助电机；电磁耦合器包括内转子和外转子；同步调相机的定子绕组并入电网；整流器、直流母线、以及设置于直流母线上的第一变流器和第二变流器，其中，整流器将电网中的工频交流变为直流电为直流母线供电；第一变流器将辅助电机发出的交流电变为直流电为直流母线供电，或者，将直流母线的直流电流逆变为交流电；第二变流器将直流侧电流逆变为所需频率的交流电通入电磁耦合器的外转子绕组。由此，解决了相关技术中使用同步调相机、化学储能和飞轮储能等方式以确保电网频率的稳定性，存在实施复杂度高以及建设成本昂贵等问题。
The present application relates to the field of energy storage technology, and in particular to an inertial flywheel system, a starting method, a storage medium, and a computer program product, wherein the system includes: a flywheel and an auxiliary motor; an electromagnetic coupler including an inner rotor and an outer rotor; a stator winding of a synchronous phase condenser is connected to a power grid; a rectifier, a DC bus, and a first converter and a second converter arranged on the DC bus, wherein the rectifier converts the industrial frequency AC in the power grid into DC power to supply power to the DC bus; the first converter converts the AC power generated by the auxiliary motor into DC power to supply power to the DC bus, or inverts the DC current of the DC bus into AC power; the second converter inverts the DC side current into AC power of the required frequency and passes it into the outer rotor winding of the electromagnetic coupler. Thus, the problems of high implementation complexity and high construction cost in the related technologies of using synchronous phase condensers, chemical energy storage, and flywheel energy storage to ensure the stability of the power grid frequency are solved.
Description
Technical Field
The present application relates to the field of energy storage technologies, and in particular, to an inertia flywheel system, a starting method, a storage medium, and a computer program product.
Background
With the increasing global importance of renewable energy sources, new energy systems (such as wind power generation and solar power generation) have become an important component for reducing carbon emissions and achieving energy sustainability. Since the new energy system power generation process does not involve rotating mechanical parts, when a large-scale new energy system is connected to the power grid, the instability of the power grid frequency may be caused because there is insufficient rotational inertia to balance the sudden load change or power generation fluctuation.
In the related art, the lack of inertia is generally compensated by development so as to ensure the stability of the frequency of the power grid, for example, the reactive power is regulated when the voltage of the power grid changes by utilizing the traditional synchronous regulation camera technology, and a small amount of mechanical inertia is provided; or by using chemical or traditional flywheel energy storage and other technologies, virtual inertia and active power are output through the grid-connected converter. The coordinated control of these techniques is very complex, however, and the overall cost of construction is high,
Disclosure of Invention
The application provides an inertia flywheel system, a starting method, a storage medium and a computer program product, which are used for solving the problems that the implementation complexity is high, the construction cost is high and the like in the prior art by using synchronous camera adjustment, chemical energy storage, flywheel energy storage and other modes to ensure the stability of the frequency of a power grid.
An embodiment of a first aspect of the present application provides an inertia flywheel system, comprising: flywheel and auxiliary motor; an electromagnetic coupler, wherein the electromagnetic coupler comprises an inner rotor and an outer rotor; a synchronous phase-tuning machine, wherein a stator winding of the synchronous phase-tuning machine is incorporated into the power grid; the power frequency alternating current in the power grid is converted into direct current by the rectifier to be supplied to the direct current bus; the first converter converts alternating current generated by the auxiliary motor into direct current to supply power for the direct current bus, or inverts direct current of the direct current bus into alternating current; the second converter inverts the direct-current side current into alternating current with a required frequency and sends the alternating current into an outer rotor winding of the electromagnetic coupler.
Optionally, when the output current of the second converter is positive, the rotating speed of the composite magnetomotive force is faster than the mechanical rotating speed of the outer rotor, and the inner rotor permanent magnet receives the positive electromagnetic torque and drives the flywheel rotor to store energy.
Optionally, when the output current of the second converter is negative, the rotating speed of the composite magnetomotive force is slower than the mechanical rotating speed of the outer rotor, and the inner rotor permanent magnet receives negative electromagnetic torque and drives the flywheel rotor to release energy.
Optionally, the flywheel rotor is connected with the auxiliary motor rotor through a first mechanical rotating shaft, the auxiliary motor rotor is connected with the inner rotor of the electromagnetic coupler through a second mechanical rotating shaft, and the outer rotor of the electromagnetic coupler is directly connected with the rotor of the synchronous phase-change modulator through a third mechanical rotating shaft.
An embodiment of the second aspect of the present application provides a method for starting an inertia flywheel system, where the method is used for starting the inertia flywheel system in the foregoing embodiment, and the method includes the following steps: shorting the armature winding of the outer rotor of the electromagnetic coupler and disconnecting the armature winding of the outer rotor of the electromagnetic coupler from the second converter; controlling the input of the power grid side through a rectifier to maintain the voltage of the direct current bus to be a preset voltage; the torque input to the auxiliary motor is controlled through the first converter, the rotor of the auxiliary motor is driven by the torque to drive the flywheel and the inner rotor of the electromagnetic coupler to start rotating, and after the inner rotor of the electromagnetic coupler starts rotating, the outer rotor is driven by the electromagnetic force to drive the rotor of the synchronous speed regulator to rotate together; and adjusting the control mode of the second converter according to the rotating speed of the auxiliary motor until the rotating speed of the auxiliary motor reaches the synchronous rotating speed, enabling the outer rotor and the synchronous camera to reach the synchronous rotating speed through the electromagnetic action of the electromagnetic coupler, and merging the stator side of the synchronous camera into a power grid when the synchronous camera meets the grid-connected condition.
Optionally, adjusting the control mode of the second converter according to the rotation speed of the auxiliary motor includes: when the rotating speed of the auxiliary motor is lower than the synchronous rotating speed, the second converter adopts a constant torque control mode to control the rotor of the auxiliary motor to receive preset torque; when the auxiliary motor reaches the synchronous rotation speed, the second converter adopts a control mode for maintaining the synchronous rotation speed.
Optionally, the parts of the system are at rest prior to start-up.
Optionally, the second converter is not operated during the entire start-up phase.
An embodiment of a third aspect of the present application provides a computer-readable storage medium having stored thereon a computer program for execution by a processor for implementing the start-up method of the inertia flywheel system of the above-described embodiment.
An embodiment of a fourth aspect of the present application provides a computer program product having a computer program or instructions stored thereon, which when executed, implement a method of starting an inertia flywheel system as in the above embodiment.
Therefore, the application has at least the following beneficial effects:
the inner rotor, the auxiliary motor and the flywheel rotor of the electromagnetic coupler are coaxially connected, and the inner rotor and the outer rotor of the electromagnetic coupler are mutually coupled through electromagnetic action, so that the system can provide active power, reactive power and direct mechanical inertia support for a power grid, and the system is simple and reliable in structure and can better ensure the stability of the frequency of the power grid. Therefore, the problems of high implementation complexity, high construction cost and the like existing in the related technology that the stability of the power grid frequency is ensured by using synchronous camera, chemical energy storage, flywheel energy storage and the like are solved.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a block diagram of an inertia flywheel system according to an embodiment of the present application;
Fig. 2 is an exemplary diagram of an electromagnetic coupler provided according to an embodiment of the present application;
FIG. 3 is a flowchart of a method for starting an inertia flywheel system according to an embodiment of the present application;
FIG. 4 is a control block diagram of an inertia flywheel system start mode according to an embodiment of the present application;
Fig. 5 is a waveform diagram illustrating operation of a portion of components during start-up of an inertia flywheel system according to an embodiment of the present application.
Reference numerals illustrate: flywheel 10, first mechanical rotating shaft 21, auxiliary motor 30, second mechanical rotating shaft 22, device 40, electromagnetic coupler outer rotor 41, electromagnetic coupler inner rotor 42, third mechanical rotating shaft 23, synchronous rectifier 50, rectifier 60, direct current bus 70, first converter 80, second converter 90, and power grid 100.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
An inertia flywheel system, a starting method, a storage medium, and a computer program product according to an embodiment of the present application are described below with reference to the accompanying drawings. Aiming at the problems in the background art, the application provides an inertia flywheel system, wherein an inner rotor of an electromagnetic coupler, an auxiliary motor and a flywheel rotor are coaxially connected, and the inner rotor and the outer rotor of the electromagnetic coupler are mutually coupled through electromagnetic action, so that the system can provide active power, reactive power and direct mechanical inertia support for a power grid, and the system has a simple and reliable structure and can better ensure the stability of the frequency of the power grid. Therefore, the problems of high implementation complexity, high construction cost and the like existing in the related technology that the stability of the power grid frequency is ensured by using synchronous camera, chemical energy storage, flywheel energy storage and the like are solved.
Specifically, fig. 1 is a block schematic diagram of an inertia flywheel system according to an embodiment of the present application.
As shown in fig. 1, the inertia flywheel system includes: flywheel 10, auxiliary motor 30, electromagnetic coupler 40, synchronous rectifier 50, rectifier 60, dc bus 70, first converter 80, and second converter 90.
Wherein the electromagnetic coupler 40 includes an inner rotor and an outer rotor; the stator winding of the synchronous rectifier 50 is integrated into the power grid 100, the first converter 80 and the second converter 90 are arranged on the direct current bus 70, and the rectifier 60 converts the power frequency alternating current in the power grid 100 into direct current to supply power for the direct current bus 70; the first converter 80 converts the ac power generated by the auxiliary motor 30 into dc power to supply power to the dc bus 70, or inverts the dc power of the dc bus 70 into ac power; the second converter 90 inverts the dc-side current into ac current of a desired frequency and supplies the ac current to the outer rotor winding of the electromagnetic coupler 40. Wherein the outer rotor of the electromagnetic coupler 40 is shown at 41 in fig. 2, and the inner rotor of the electromagnetic coupler 40 is shown at 42 in fig. 2.
As shown in fig. 1, the flywheel rotor of the embodiment of the present application is connected to an auxiliary motor rotor through a first mechanical rotation shaft 21, the auxiliary motor rotor is connected to an inner rotor of an electromagnetic coupler 40 through a second mechanical rotation shaft 22, and an outer rotor of the electromagnetic coupler 40 is directly connected to a rotor of a synchronous regulator 50 through a third mechanical rotation shaft 23.
In the embodiment of the present application, the auxiliary motor 30 adopts a permanent magnet synchronous motor for self-starting of the system and acting as a UPS power source, the synchronous regulator 50 can output reactive power and little inertia support to the power grid 100, the flywheel 10 can provide rotational inertia and active power in a short time, and the electromagnetic coupler 40 and its converter can control the transmission of the rotational inertia and active power. The flywheel rotor is coaxially connected with the auxiliary motor rotor and the inner rotor of the electromagnetic coupler 40, the inner rotor of the electromagnetic coupler 40 can be made of permanent magnet materials, the outer rotor of the electromagnetic coupler 40 is directly connected with the rotor of the synchronous regulator 50, and the frequency of electric energy emitted by the synchronous regulator 50 is consistent with the frequency of the power grid 100 and can be directly integrated into the power grid 100. By controlling the frequency of the external rotor current output from the second converter 90 to the electromagnetic coupler 40, the flywheel and the synchronous governor 50 can be made to have a certain slip, and the torque on the flywheel side can be output to the synchronous governor 50.
Specifically, as shown in fig. 1, the flywheel 10 of the embodiment of the present application achieves energy storage and release by acceleration and deceleration. The flywheel rotor is connected to the auxiliary motor 30 and the electromagnetic coupler 40. The auxiliary motor 30 supplies or takes power to the dc bus 70 through the first inverter 80. The electromagnetic coupler 40 adjusts the frequency of the input current of the outer rotor 41 through the second current transformer 90, so that the inner rotor 42 can accelerate and decelerate under the condition of maintaining the rotation speed of the outer rotor 41 unchanged, and the purposes of energy storage and energy release of the flywheel rotor are achieved. The other end of the electromagnetic coupler 40 is connected with a synchronous regulator 50, the synchronous regulator 50 is directly incorporated into the power grid 100, and the magnitude of reactive power emitted by the synchronous regulator can be controlled by changing the excitation of the synchronous regulator. The power grid 100 may supply power to the dc bus 70 through the rectifier 60.
In one embodiment of the present application, when the output current of the second converter 90 is positive, the rotational speed of the composite magnetomotive force is faster than the mechanical rotational speed of the outer rotor 41, and the permanent magnet of the inner rotor 42 receives the positive electromagnetic torque and drives the flywheel rotor to accelerate and store energy.
In one embodiment of the present application, when the output current of the second converter 90 is negative, the rotation speed of the composite magnetomotive force is slower than the mechanical rotation speed of the outer rotor 41, and the permanent magnet of the inner rotor 42 receives the negative electromagnetic torque and drives the flywheel rotor to release energy.
According to the inertia flywheel system provided by the embodiment of the application, the inner rotor of the electromagnetic coupler, the auxiliary motor and the flywheel rotor are coaxially connected, and the inner rotor and the outer rotor of the electromagnetic coupler are mutually coupled through electromagnetic action, so that the system can provide active power, reactive power and direct mechanical inertia support for a power grid, and the system is simple and reliable in structure and can better ensure the stability of the frequency of the power grid. Therefore, the problems of high implementation complexity, high construction cost and the like existing in the related technology that the stability of the power grid frequency is ensured by using synchronous camera, chemical energy storage, flywheel energy storage and the like are solved.
Next, a starting method of an inertia flywheel system according to an embodiment of the present application, which is used for starting the inertia flywheel system in the above embodiment, will be described with reference to the accompanying drawings.
Fig. 3 is a flowchart of a starting method of an inertia flywheel system according to an embodiment of the present application.
As shown in fig. 3, the starting method of the inertia flywheel system includes the following steps:
In step S101, shorting the armature winding of the outer rotor of the electromagnetic coupler and disconnecting the armature winding from the second current transformer; and controlling the input of the power grid side through the rectifier to maintain the voltage of the direct current bus to be a preset voltage.
The preset voltage may be set according to actual situations, and is not specifically limited.
In the embodiment of the application, by combining the inertia flywheel system described in the above embodiment and the control block diagram of the starting mode of the inertia flywheel system shown in fig. 4, before starting, each part of the system is in a static state, the armature winding of the outer rotor of the electromagnetic coupler is short-circuited and disconnected with the second converter, and the second converter does not work in the whole starting stage. The rectifier controls the grid side input to maintain the preset voltage of the dc bus constant.
In step S102, the torque input to the auxiliary motor is controlled by the first converter, the auxiliary motor rotor is driven by the torque to rotate with the flywheel and the inner rotor of the electromagnetic coupler, and after the inner rotor of the electromagnetic coupler begins to rotate, the outer rotor is driven by the electromagnetic force to rotate with the rotor of the synchronous motor.
In step S103, the control mode of the second converter is adjusted according to the rotation speed of the auxiliary motor until the rotation speed of the auxiliary motor reaches the synchronous rotation speed, the outer rotor and the synchronous camera reach the synchronous rotation speed through the electromagnetic action of the electromagnetic coupler, and when the synchronous camera meets the grid connection condition, the stator side of the synchronous camera is integrated into the power grid.
Specifically, when the rotating speed of the auxiliary motor is lower than the synchronous rotating speed, the second converter adopts a constant torque control mode to control the torque received by the rotor of the auxiliary motor to be a preset torque; when the auxiliary motor reaches the synchronous rotation speed, the second converter controls the rotation speed of the auxiliary motor to be maintained at the synchronous rotation speed, wherein the preset torque can be set according to the situation and is not particularly limited.
Further, as shown in fig. 4, the embodiment of the present application may use the control strategy of i d =0 or the flux weakening control strategy according to the specific parameters of the system to determine the specific value selected by i dref. After the rotation speed of the auxiliary motor reaches the synchronous rotation speed, the outer rotor and the synchronous camera can also reach the synchronous rotation speed due to the electromagnetic action of the electromagnetic coupler, and when the synchronous camera meets the grid-connected condition, the stator side of the synchronous camera is combined with a power grid, so that the system is started automatically.
Fig. 5 is a waveform diagram of flywheel and governor rotational speed, auxiliary motor electromagnetic torque, auxiliary motor power, electromagnetic coupler current during start-up of an inertia flywheel system. It can be seen from fig. 5 that during the starting process, due to the electromagnetic interaction between the inner rotor and the outer rotor of the electromagnetic coupler, the synchronous speed regulator can basically follow the rotation speed change of the flywheel, and the slip of the synchronous speed regulator and the flywheel is close to 0. When the rotating speed is lower than the synchronous rotating speed, the electromagnetic torque of the auxiliary motor is ensured to be constant, and the electric power of the auxiliary motor is continuously increased as the rotating speed of the system is continuously increased, and the power reaches the maximum value when the synchronous rotating speed is reached. The current of the electromagnetic coupler is close to direct current, so that the electromagnetic torque provided by the auxiliary motor can be transmitted to the synchronous phase modulator side, and the armature current of the coupler is smaller because the slip of the inner rotor and the outer rotor of the electromagnetic coupler is smaller in the whole starting process. Therefore, the starting mode is verified through simulation, the self-starting of the system can be completed, the short-circuited electromagnetic coupler winding current is small, and the starting mode has high safety and reliability.
In summary, according to the starting method of the inertia flywheel system provided by the embodiment of the application, the auxiliary motor is utilized to provide power support for starting the system, and because the flywheel rotor of the inertia flywheel is not directly connected with the synchronous motor rotor, in order to enable two parts of the system to be started simultaneously, the ports of the electromagnetic coupler are short-circuited by utilizing the electrical characteristics of the electromagnetic coupler, so that the electromagnetic coupler does not need to carry out additional control on the electromagnetic coupler, and the torque applied to the flywheel rotor by the auxiliary motor can be transmitted to the synchronous motor rotor by the electromagnetic coupler. Compared with the mode that torque transmission is carried out on electromagnetic coupler control through a current transformer, the electromagnetic coupler adopts winding short circuit instead of the current transformer during starting, so that the reliability of the system is enhanced, and the mode is simpler.
The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when being executed by a processor, implements the starting method of the inertia flywheel system as above.
The embodiment of the application also provides a computer program product, which stores a computer program or instructions, and the computer program or instructions are executed to realize the starting method of the inertia flywheel system.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, "N" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more N executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable gate arrays, field programmable gate arrays, and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410871193.1A CN118944151A (en) | 2024-07-01 | 2024-07-01 | Inertia flywheel system, starting method, storage medium and computer program product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410871193.1A CN118944151A (en) | 2024-07-01 | 2024-07-01 | Inertia flywheel system, starting method, storage medium and computer program product |
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| CN118944151A true CN118944151A (en) | 2024-11-12 |
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| CN202410871193.1A Pending CN118944151A (en) | 2024-07-01 | 2024-07-01 | Inertia flywheel system, starting method, storage medium and computer program product |
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