CN208299438U - power supply device - Google Patents
power supply device Download PDFInfo
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- CN208299438U CN208299438U CN201820504915.XU CN201820504915U CN208299438U CN 208299438 U CN208299438 U CN 208299438U CN 201820504915 U CN201820504915 U CN 201820504915U CN 208299438 U CN208299438 U CN 208299438U
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- power
- power supply
- supply device
- voltage
- conversion module
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004092 self-diagnosis Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
- H02M5/42—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
- H02M5/44—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC
- H02M5/453—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
- H02J1/06—Two-wire systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/008—Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Power supply device in power electronic system includes the multiple power modules for being connected to common DC power distribution link.Common DC power distribution link can be charged to normal working voltage by first (high power) conversion module or be charged to low pressure, which meets requirement of second (low-power) conversion module to low-voltage.The power supply device makes it possible to motivate circuit associated with storage device in the case where not coupling the system to power supply.
Description
Technical field
The present invention relates to the power supply devices in power electronic system.
Background technique
In the power electronic system for including multiple speed controls exchange (AC) motor, it is common practice to such as convert
Direct current (DC) power distribution link is used between the power module of device etc, direct current (DC) the power distribution link pair power supply is handed over
The voltage commutation of galvanic electricity net and inverter forms the adjustable alternating voltage of motor.
Converter and inverter in the control of modern power module, such as speed control AC system, are typically based on number
Word technology, in this case, this often means that the programmable logic circuit with downloadable software, such as using downloading to
The microprocessor of the software of storage device.Power module may include one or more programmable devices, for example, high power inversion
Device unit generally includes at least two programmable control units, and at least two programmable control units are grasped under different current potentials
Make, is in main circuit in the measuring unit of the first device and inverter in ground potential in the control unit of inverter
The second device of current potential.
Sometimes the software stored in storage device may need to update.In order to update, circuit associated with storage device
Need it is to be excited, for example, this is and coupling the system to supply and AC power grid with natural side in the case where inverter unit
Formula occurs.This causes the voltage of dc power distribution link to rise to normal operating level, so that being connected to the inverse of DC link
The accessory power supply for becoming device unit can start and provide necessary power to the control system of inverter unit.
Update the operator of work due to executing and keep ground potential, thus dangerous main circuit current potential may result in it is special
Software upgrading problem.Due to safety concerns, the signal path between operator and storage device under dangerous current potential needs
It is isolated, or circuit relevant to storage device needs to be motivated by interim dedicated unit, to avoid system and power supply
AC network connection.
Summary of the invention
The object of the present invention is to provide a kind of new devices for power electronic system, such as are needed with excitation with possible
The associated circuit of the storage device of software upgrading.The present invention can be in the case where no any interim safety device with individual
Secured fashion enables software download procedure.Alternatively, or in addition, the present invention can enable to input low pressure diagnostic mode.With
Under be to provide for the brief overview of basic comprehension to some aspects of various embodiments of the present invention, it is given later exemplary
The more detailed description of embodiment.The purpose of the present invention realizes that other are preferably by content specified in independent claims
Embodiment is disclosed in the dependent claims.
According to the present invention, power electronic system includes the device for motivating dc power distribution link by low pressure, from
From the perspective of personal security, which is electric safety.In addition, in order to for example in order to realize software upgrading process, be connected to
Dc power distribution link and each power module including the storage device with downloadable software may include for inciting somebody to action
The device of boost voltage needed for the low pressure of dc power distribution link is converted to circuit associated with storage device.
According to an embodiment of the invention, including being connected in be for motivating dc power to distribute the device of link by low pressure
Low-power conversion module between supply and AC power grid and dc power the distribution link of system.
According to an embodiment of the invention, including that low-power turns for motivating dc power to distribute the device of link by low pressure
Block is changed the mold, which is connected in the not AC network and direct current function by power electronic system for its normal operating
Rate is distributed between link.
According to an embodiment of the invention, including that low-power turns for motivating dc power to distribute the device of link by low pressure
Block is changed the mold, which is connected in the not DC grid and direct current function by power electronic system for its normal operating
Rate is distributed between link.
According to an embodiment of the invention, the device for the low pressure of dc power distribution link to be converted to boost voltage can
To be designed to only work within the scope of low DC input voitage.The internal auxiliary power supply can be in parallel with common accessory power supply,
Common accessory power supply is designed to input in the higher direct current for the normal power supply AC voltage range for meeting power electronic system
Work in voltage range.
According to an embodiment of the invention, the device for the low pressure of dc power distribution link to be converted to boost voltage can
To be designed to work in compared with wide DC input voltage range.Meet dc power point simultaneously compared with wide DC input voltage range
The normal power supply AC voltage range of low pressure and power electronic system with link.
Configuration according to the present invention allows to the feelings in not interim safety related device or accessory power supply relevant apparatus
The software of the programmable logic of power module is updated under condition.By keeping the dc power motivated by low pressure during stand-by time
It distributes link and so that elimination can be minimized from non-volatile memory device to the software upload time of work storage device
System start-up time.Self diagnosis measure can also be run in low pressure standby period, for example, control power switch, checks measurement
The function etc. of circuit, to avoid the failure that may occur when starting under full operating voltage.
Detailed description of the invention
The present invention is explained in greater detail by using the embodiment with reference to attached drawing, in which:
Fig. 1 gives power electronic system,
Fig. 2 gives power module,
Fig. 3 indicates power supply device according to the present invention,
Fig. 4 shows voltage related with power supply device according to the present invention.
Specific embodiment
Fig. 1 shows the simplification main circuit diagram of the exemplary so-called speed change multi-motor driving FC as power electronic system,
Power supply device according to the present invention can wherein be applied.It should be noted that the figure is reduced to concentrate on and be clearly understood that the present invention
Relevant element, while other elements are omitted for purposes of clarity, such as the identification label of some components, it can control portion
The control device etc. of part, this is obvious for the ordinary skill in the art.Similar clarification letter herein
Change is also applied for other attached drawings.
In the system of fig. 1, three-phase mains voltage ULPass through load switch S1With charging contactor K1It is connected to rectifier bridge
REC.Resistor R1Coupled by contactor, to limit the initial charge electricity of dc power distribution link before closing contactor
Stream.The voltage u of DC linkDCBy capacitor CDCFiltering.Multiple inverter unit INU1, INU2, INU3It is coupled to direct-current chain
Road, to be respectively motor M1, M2, M3Controlled variable voltage is provided.Although multiple inverter units are shown in FIG. 1,
The present invention is not limited to the circuits with multiple inverter units.
Fig. 2 illustrates in greater detail exemplary inverter unit INU as shown in Figure 1.The device is by the direct current of power supply
Voltage uDCIt is converted into phase U1, V1And W1Three-phase output voltage.DC/AC conversion will pass through control and anti-paralleled diode
D1...D6The controllable power semiconductor switch V of connection1...V6, advantageously, IGBT is completed respectively.Related creation output voltage
Control unit CU is usually located at the ability of thus control motor1In, especially in control software.One of device control
Point, such as some measurement and protection functions can be positioned at another control panel CB of the control software including their own1In.Because
Control unit CU1External control connection is also typically included, so it is usually designed to the requirement for meeting the ultralow pressure device of safety,
As defined by international safety standard (such as IEC61800-5-1), to allow directly to carry out human contact with device.It is internal
Control panel CB1 may be at main circuit current potential, for example, being in dc bus current potential.The Auxiliary Power Units of inverter unit
POW1It is usually powered by DC link, and it is by DC link voltage uDCIt is respectively converted into for CU1And CB1Supply voltage
uAUX1And uAUX2.Supply voltage uAUX1And uAUX2It is isolated from each other according to relevant function and safety requirements, and they can be wrapped
Several DC voltage levels are included, for example, 3 DC voltage levels, 3V, 5V and 15V.
Fig. 3 shows the example of power supply device according to the present invention, and wherein dc power distribution chain routes individual power
Unit POWDCExcitation, power cell POWDCGenerate the low dc voltage for meeting the requirement of safe ultralow pressure, i.e. ,≤60VDC, such as pacify
Defined by national border standard IEC 61800-5-1.P0WDCCan be powered by extra power, in this example, can from it is whole
The identical three-phase alternating voltage U of the energy source of a power electronic systemLOr from local low distribution voltage U1 (such as 230VAC)
Power supply.POWDCIt can also be provided by external dc electricity potential source (not shown).Due to POWDCOutput voltage it is lower, diode DDC
It may be connected to any pole connecting with DC link, to prevent from (being usually above by DC link normal operational voltage level
300VDC) caused by damage.
Due to technology and economic cause, accessory power supply is typically only capable to work within the scope of limited supply voltage.Here it is
Why inverter unit INU according to the present invention11Including two accessory power supply POW11And POW12, two accessory power supply POW11
And POW12Can it is identical described in Fig. 2 above in conjunction in a manner of generate by control device CU11And CB11Required auxiliary electricity
Press uAUX11And uAUX12.According to the present invention, that is, pass through individual power cell POW in the example in figure 3DC, the first accessory power supply
P0W11It is designed to work within the scope of the normal working voltage of system, and the second accessory power supply P0W12It is designed to low
Press work in range.
Power supply device realization through the invention is advantageous in that, dc power can be motivated to distribute link by low pressure,
This is not dangerous from the point of view of personal safety angle, and the control device for still maintaining power module can operate, in this way can be with
Control software is updated (for example) under safety condition.Another benefit is can to arrange in the standby period operation self diagnosis of low pressure
It applies, for example, control power switch, checks the function etc. of measuring circuit, to avoid to send out when starting under full operating voltage
Raw failure.
Fig. 4, which is shown, describes some performance plots of the invention.These schematic diagrames are all shown by low-tension supply and normal source voltage
DC link voltage u is shownDC, the boost voltage u of power moduleAUXWith the Job readiness degree SW of power module.
-- in moment t1, low-tension supply (such as the POW in Fig. 3DC) open,
-- in moment t2, the voltage level of DC link reaches value UDC1, wherein the second auxiliary voltage source is (in Fig. 3
P0W12) starting, start to generate its output voltage uAUX,
-- control software, which is uploaded to work storage device from non-volatile memory device, may need several seconds time.
Label is only in figureDThis time delay after, control system can just operate (labeled as the high level shape of signal SW
State),
-- in moment t3Low-tension supply is disconnected in short time period before, this causes in moment t3DC link voltage reduces
And the second boost voltage power supply stops working,
-- in moment t4, the main power source of system open (for example, in Fig. 1, switch S1Closure), it means that DC link
Voltage starts by charging current and the DC link capacitance (R in Fig. 11, CDC) determine speed increase,
-- in moment t5, the voltage level of DC link reaches value UDC3, wherein the first auxiliary voltage source is (in Fig. 3
POW11) start to generate output voltage uAUX.In moment t4And t5Between, when DC link voltage is in its working range
UDC1...UDC2When interior, the second auxiliary voltage source can start in a short time,
-- in time delay tDAfterwards, it controls software upload and system can operate (labeled as the high level shape of signal SW
State).
It is worth noting that, by persistently low-voltage source being kept to connect during system standby, after the main power source is turned
It can be to avoid software upload time delay (that is, in Fig. 4, if main power source is in moment t3It opens before, the second time delay tD
It eliminates).In this way, it can use the present invention and carry out acceleration system start-up course.
The present invention is described referring generally to more newly arriving for software.This is an exemplary application of the principle of the invention, but its
His application is also possible and falls within the scope of the appended claims.For example, during maintenance or diagnostic operation mode, it is lower
DC link voltage may be suitable.
Unless expressly stated otherwise, the specific example otherwise provided in above description be not it is exhausted, should not also be solved
It is interpreted as limitation scope of the appended claims and applicability.Unless expressly stated otherwise, it otherwise enumerates in the following claims
Feature can mutually be freely combined.As open limitation, this is neither arranged for verb "comprising" used herein and " comprising "
Except also not requiring, there is also the features not described.Moreover, it should be understood that use "a" or "an" in this document, i.e., it is singular
Form is not precluded multiple.
Claims (10)
1. the power supply device in a kind of power electronic system, the power supply device includes being connected to common DC power distribution link
One or more power electronics modules, the power electronic system includes:
First conversion module, first conversion module are configured as supply and AC network voltage being converted to the dc power
Distribute the normal working voltage of link；With
Second conversion module, second conversion module are configured as charging to dc power distribution link than dc power point
The low low pressure of normal working voltage with link.
2. power supply device according to claim 1, wherein
The low pressure meets the requirement of safe ultralow pressure operation mode.
3. power supply device according to claim 1 or 2, wherein
Second conversion module is configured as receiving the input power from identical AC network with first conversion module.
4. power supply device according to claim 1 or 2, wherein
Second conversion module is configured as receiving from the AC network different from the AC network of the first power conversion module
Input power.
5. power supply device according to claim 1 or 2, wherein
Second conversion module is configured as receiving input power from DC voltage source.
6. power supply device according to claim 1 or 2, wherein
At least one of one or more of power electronics modules include being configured as only in the dc power distribution chain
The first internal auxiliary power supply to work under the normal working voltage on road, and be configured as inside work under the low pressure second
Accessory power supply, normal working voltage of the low pressure lower than dc power distribution link.
7. power supply device according to claim 1 or 2, wherein
At least one of one or more of power electronics modules include accessory power supply, and the accessory power supply is configured as
It works under the normal working voltage of the dc power distribution link and under the low pressure.
8. power supply device according to claim 1 or 2, wherein
The low pressure is equal to or less than 60V.
9. power supply device according to claim 1 or 2, wherein
The normal working voltage of the dc power distribution link is higher than 300V.
10. power supply device according to claim 1 or 2, wherein
It is configured in one or more of power electronics modules in the normal work lower than dc power distribution link
At least one power electronics modules for making to work under the low pressure of voltage include the storage device with downloadable software.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202017102254.4 | 2017-04-13 | ||
| DE202017102254.4U DE202017102254U1 (en) | 2017-04-13 | 2017-04-13 | Power supply arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208299438U true CN208299438U (en) | 2018-12-28 |
Family
ID=59069429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820504915.XU Active CN208299438U (en) | 2017-04-13 | 2018-04-10 | power supply device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208299438U (en) |
| DE (1) | DE202017102254U1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019001936A1 (en) | 2019-03-20 | 2020-09-24 | Günther Zimmer | Energy supply system for a transport and / or processing system |
-
2017
- 2017-04-13 DE DE202017102254.4U patent/DE202017102254U1/en active Active
-
2018
- 2018-04-10 CN CN201820504915.XU patent/CN208299438U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202017102254U1 (en) | 2017-05-26 |
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