CN108155669A - Energy electronic load device - Google Patents
Energy electronic load device Download PDFInfo
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- CN108155669A CN108155669A CN201810140949.XA CN201810140949A CN108155669A CN 108155669 A CN108155669 A CN 108155669A CN 201810140949 A CN201810140949 A CN 201810140949A CN 108155669 A CN108155669 A CN 108155669A
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- load device
- electronic load
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- 239000000446 fuel Substances 0.000 claims abstract description 24
- 230000009466 transformation Effects 0.000 claims abstract description 4
- 238000004088 simulation Methods 0.000 claims description 17
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 238000013507 mapping Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- H02J3/387—
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inverter Devices (AREA)
Abstract
The present invention relates to a kind of energy electronic load device, including：Energy collection unit and energy feedback unit.Wherein energy collection unit, for fuel cell DC Input transformation to dc bus to be exported.Energy feedback unit, for dc bus to be converted into exchange output to power grid；I.e. fuel cell DC is input to after energy collection unit and is fed back to power grid through energy feedback unit.The energy electronic load device of the present invention can cause during fuel cell test electric energy feedback to power grid, energy conservation and environmental protection.
Description
Technical field
The present invention relates to power battery detection technique fields, and in particular to a kind of energy electronic load device.
Background technology
Fuel cell conveniently has boundless prospect in using energy source and environmental protection.Fuel cell is in development process
In need to carry out functional test, performance test and burn-in test etc., the low level-one energy consumption of measuring accuracy when larger current function survey
Examination and the main problem of burn-in test.
In view of above-mentioned problem, research and design is directed to the energy-saving test equipment of fuel cell, for fuel electricity
Exploitation, experiment and the burn-in test in pond, and by the electric energy feedback to power grid generated during it, so as to fulfill returning for the energy
It receives and utilizes.
Invention content
The object of the present invention is to provide a kind of energy electronic load devices, with solution so that electric during fuel cell test
The technical issues of power grid can be fed back to.
What the energy electronic load device of the present invention was realized in：
A kind of energy electronic load device, which is characterized in that including：
Energy collection unit, for fuel cell DC Input transformation to dc bus to be exported；
Energy feedback unit, for the dc bus to be converted into exchange output to power grid；I.e.
Fuel cell DC is input to after energy collection unit and is fed back to power grid through energy feedback unit.
Further, the energy collection unit includes several load simulation modules being arranged in parallel；
The energy feedback unit, including the gird-connected inverter that is suitable for being connected with the output terminal of several load simulation modules and with institute
The grid-connected transformer that gird-connected inverter is connected is stated, the output terminal of the grid-connected transformer is connected with the power grid.
Further, the load simulation module includes：DC/DC closed loop controllers, boost power component based on DSP,
Fuel cell DC inputs and dc bus output；Wherein
The boost power component respectively with the DC/DC closed loop controllers based on DSP, fuel cell DC input and dc bus
Output is connected.
Further, the boost power component includes the input protection circuit being sequentially connected electrically, input filter circuit, straight
Flow switching circuit, DCDC power conversion circuits and the grid-connected output protection circuit of direct current；
The voltage that the DC/DC closed loop controllers based on DSP are exported by input filter circuit described in real-time sampling, and and base
Quasi- voltage is compared, the control number of output control DCDC power conversion circuits；And
The DC/DC closed loop controllers also have general CAN communication interface.
Further, it is additionally provided with a soft start between the DC switching circuit and the grid-connected output protection circuit of the direct current
Circuit；
The input terminal of the soft starting circuit is connected with the output terminal of the DC switching circuit and the soft starting circuit
Output terminal is connected with the input terminal of the grid-connected output protection circuit of the direct current.
Further, there is the collection of energy modular converter the independent developer that is suitable for debug and observe operating status
Commissioning interface.
Further, the gird-connected inverter includes the DC/AC closed loop controllers based on DSP, (PCC) power, busbar direct current
Input exchanges output with system；Wherein
The (PCC) power exchanges the output phase with the DC/AC closed loop controllers based on DSP, the input of busbar direct current and system respectively
Even.
Further, the (PCC) power includes the direct current being sequentially connected electrically access and protection circuit, DCAC functional mappings
Circuit, output filter circuit and exchange grid-connected output protection circuit；
The DC/AC closed loop controllers based on DSP are accessed by direct current described in real-time sampling and the voltage of protection circuit output,
And it is compared with reference voltage, the control signal of output control DCAC power conversion circuits；And
The DC/AC closed loop controllers also have general CAN communication interface.
Further, the gird-connected inverter has the independent commissioning for being suitable for developer and debugging and observing operating status
Interface.
Further, it further includes and is connected respectively with the collection of energy modular converter and gird-connected inverter by CAN bus
Monitoring module；
The monitoring module is suitable for receiving the real time data of the collection of energy modular converter and gird-connected inverter and be uploaded to
Position machine and the instruction suitable for receiving host computer.
Beneficial effects of the present invention are：The energy electronic load device of the present invention by the energy collection unit of design and
Energy feedback unit, can realize fuel cell DC being input to after energy collection unit and be fed back to electricity through energy feedback unit
Net avoids the waste of electric energy during fuel cell test.
Further, pass through several load simulation modules being arranged in parallel of design so that energy electronics of the invention
Load device can be realized according to different fuel cell articles and the load simulation module of quantity configuration different type and quantity
The DC power supply device of low cost inputs the energy back to power grid.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the overall flow structure chart of the energy electronic load device of the present invention；
Fig. 2 is the overall structure figure of the energy electronic load device of the present invention；
Fig. 3 is the structure diagram of the collection of energy modular converter of the energy electronic load device of the present invention；
Fig. 4 is the structure diagram of the gird-connected inverter of the energy electronic load device of the present invention.
Specific embodiment
Purpose, technical scheme and advantage to make embodiment of the present invention are clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is the embodiment of a part of embodiment of the present invention rather than whole.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement guarantor below
The scope of the present invention of shield, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.
Embodiment 1：
As shown in Figure 1, the present invention provides a kind of energy electronic load device, including energy collection unit and energy feedback list
Member.Wherein energy collection unit, for fuel cell DC Input transformation to dc bus to be exported.Energy feedback unit is used
It is exported in dc bus is converted into exchange to power grid；I.e. fuel cell DC is input to after energy collection unit through energy feedback
Unit is fed back to power grid.
It please refers to shown in Fig. 2, energy collection unit includes several load simulation modules being arranged in parallel；Energy feedback list
Member is connected grid-connected including the gird-connected inverter for being suitable for being connected with the output terminal of several load simulation modules and with gird-connected inverter
Transformer, the output terminal of grid-connected transformer are connected with power grid.The gird-connected inverter of the present embodiment is using such as, but not limited to 2
The gird-connected inverter of 30kW.
Refering to what is shown in Fig. 3, load simulation module includes：DC/DC closed loop controllers, boost power component based on DSP, combustion
Expect battery DC input and dc bus output；Wherein boost power component respectively with the DC/DC closed loop controllers based on DSP,
Fuel cell DC is inputted to be connected with dc bus output.Optionally, the collection of energy modular converter of the present embodiment is using for example
But 6kW DCDC modules are not limited to, the energy feedback unit of the present embodiment is using such as, but not limited to 10 6kW DCDC in parallel
Module.6kW DCDC modules support the input of the fuel cell of two kinds of voltage class 375V and 560V.
Boost power component include be sequentially connected electrically input protection circuit, input filter circuit, DC switching circuit,
DCDC power conversion circuits and the grid-connected output protection circuit of direct current；DC/DC closed loop controllers based on DSP pass through real-time sampling
The voltage of input filter circuit output, and be compared with reference voltage, the control letter of output control DCDC power conversion circuits
Number, control signal is using such as, but not limited to pwm signal；And DC/DC closed loop controllers also there is general CAN communication to connect
Mouthful.CAN communication interface is used to connect fuel cell into row data communication.
A soft starting circuit is additionally provided between DC switching circuit and the grid-connected output protection circuit of direct current；Soft starting circuit
Input terminal is connected with the output terminal of DC switching circuit and the output terminal of soft starting circuit and the grid-connected output protection circuit of direct current
Input terminal be connected.
Load simulation module has the independent commissioning interface for being suitable for developer and debugging and observing operating status.
Refering to what is shown in Fig. 4, gird-connected inverter includes the DC/AC closed loop controllers based on DSP, (PCC) power, busbar direct current
Input exchanges output with system；Wherein (PCC) power respectively with the DC/AC closed loop controllers based on DSP, busbar direct current input and
System exchange output is connected.
(PCC) power includes the direct current being sequentially connected electrically access and protection circuit, DCAC functional mappings circuit, output filtering
Circuit with exchange grid-connected output protection circuit；DC/AC closed loop controllers based on DSP are accessed and are protected by real-time sampling direct current
The voltage of circuit output, and be compared with reference voltage, the control number of output control DCAC power conversion circuits controls signal
Using such as, but not limited to pwm signal；And DC/AC closed loop controllers also have general CAN communication interface.
Gird-connected inverter has the independent commissioning interface for being suitable for developer and debugging and observing operating status.
Energy electronic load device further includes passes through CAN bus with collection of energy modular converter and gird-connected inverter respectively
Connected monitoring module；Monitoring module is suitable for receiving the real time data of collection of energy modular converter and gird-connected inverter and be uploaded to
Host computer and the instruction suitable for receiving host computer.
The concrete principle that the energy electronic load device of the present embodiment is implemented is as follows：The load simulation of energy collection unit
Module is used to implement the various Working moulds of the analog portion of load, the i.e. constant current of realization electronic load, invariable power, constant-impedance
Formula.Energy feedback unit is mainly used for the energy of energy collection unit being reverse into return with power grid with pressure with frequency alternating current in the same direction
Power grid is fed to, undertakes the energy feedback function of system.The size of gird-connected inverter output current depends on tested power supply and has sent out
The size of work(power.
Specifically, the electronic load of energy collection unit makes what power supply was presented in it by controlling the size of input current
Resistance value, current value or performance number are setting reference value；The gird-connected inverter of energy feedback unit is by controlling electric current and electricity
Net voltage in phase ensures the electric energy of busbar with unity power factor feedback.So main control of energy electronic load device
Target processed is input current, DC bus-bar voltage and inverter current.Input current control determines the stable state and dynamic of load simulation
Characteristic is the key factor of load simulation.Inverter current control determine grid-connected stable state and dynamic characteristic, be energy feedback and
The key factor of guarantor unit's power factor (PF).
The DC Electronic Loads input of the present embodiment is direct current, is simulated according to purely resistive load.Under constant current mode, electricity
Son load controls input current according to given current reference value；Under constant-resistance pattern, electronic load is according to input port voltage
Given current reference value is calculated so as to control input current with target resistance；Under constant power mode, according to given power reference
Value, it is constant current value that electronic load, which will be absorbed with input voltage product,.
Using above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the content on specification, it is necessary to determine its technical scope according to right.
In the description of the present invention, it is to be understood that the term of indicating position or position relationship is based on shown in attached drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify description rather than instruction or imply signified equipment
Or element must have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
It connects or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " are based on orientation shown in the drawings or position relationship or are somebody's turn to do
Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
It solves to indicate or implying relative importance.
In addition, the terms such as term " level ", " vertical ", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to represent the structure if " level " only refers to that its direction is more horizontal with respect to for " vertical "
It has to fully horizontally, but can be slightly tilted.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature
Be in direct contact including the first and second features, can also include the first and second features not be in direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy
Right over sign and oblique upper is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below immediately below second feature and obliquely downward or be merely representative of fisrt feature level height
Less than second feature.
Claims (10)
1. a kind of energy electronic load device, which is characterized in that including：
Energy collection unit, for fuel cell DC Input transformation to dc bus to be exported；
Energy feedback unit, for the dc bus to be converted into exchange output to power grid；I.e.
Fuel cell DC is input to after energy collection unit and is fed back to power grid through energy feedback unit.
2. energy electronic load device according to claim 1, which is characterized in that if the energy collection unit includes
The dry load simulation module being arranged in parallel；
The energy feedback unit, including the gird-connected inverter that is suitable for being connected with the output terminal of several load simulation modules and with institute
The grid-connected transformer that gird-connected inverter is connected is stated, the output terminal of the grid-connected transformer is connected with the power grid.
3. energy electronic load device according to claim 2, which is characterized in that the load simulation module includes：
DC/DC closed loop controllers, boost power component based on DSP, fuel cell DC input and dc bus output；Wherein
The boost power component respectively with the DC/DC closed loop controllers based on DSP, fuel cell DC input and dc bus
Output is connected.
4. energy electronic load device according to claim 3, which is characterized in that the boost power component include according to
The input protection circuit of secondary electrical connection, input filter circuit, DC switching circuit, DCDC power conversion circuits and direct current are grid-connected defeated
Go out to protect circuit；
The voltage that the DC/DC closed loop controllers based on DSP are exported by input filter circuit described in real-time sampling, and and base
Quasi- voltage is compared, the control signal of output control DCDC power conversion circuits；And
The DC/DC closed loop controllers also have general CAN communication interface.
5. energy electronic load device according to claim 4, which is characterized in that the DC switching circuit with it is described
A soft starting circuit is additionally provided between the grid-connected output protection circuit of direct current；
The input terminal of the soft starting circuit is connected with the output terminal of the DC switching circuit and the soft starting circuit
Output terminal is connected with the input terminal of the grid-connected output protection circuit of the direct current.
6. energy electronic load device according to claim 5, which is characterized in that the load simulation module has only
The vertical commissioning interface for being suitable for developer and debugging and observing operating status.
7. energy electronic load device according to claim 2, which is characterized in that the gird-connected inverter includes being based on
The DC/AC closed loop controllers of DSP, (PCC) power, the input of busbar direct current exchange output with system；Wherein
The (PCC) power exchanges the output phase with the DC/AC closed loop controllers based on DSP, the input of busbar direct current and system respectively
Even.
8. energy electronic load device according to claim 7, which is characterized in that the (PCC) power includes electric successively
The direct current of connection accesses and protects circuit, DCAC functional mappings circuit, output filter circuit and exchanges grid-connected output protection circuit；
The DC/AC closed loop controllers based on DSP are accessed by direct current described in real-time sampling and the voltage of protection circuit output,
And it is compared with reference voltage, the control number of output control DCAC power conversion circuits；And
The DC/AC closed loop controllers also have general CAN communication interface.
9. energy electronic load device according to claim 8, which is characterized in that the gird-connected inverter has independent
Be suitable for developer debug and observe operating status commissioning interface.
10. energy electronic load device according to claim 2, which is characterized in that further include respectively with the load
The monitoring module that analog module is connected with gird-connected inverter by CAN bus；
The monitoring module is suitable for receiving the real time data of the load simulation module and gird-connected inverter and is uploaded to host computer,
And the instruction suitable for receiving host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140949.XA CN108155669B (en) | 2018-02-11 | 2018-02-11 | Energy feedback type electronic load device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140949.XA CN108155669B (en) | 2018-02-11 | 2018-02-11 | Energy feedback type electronic load device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108155669A true CN108155669A (en) | 2018-06-12 |
| CN108155669B CN108155669B (en) | 2024-05-28 |
Family
ID=62459973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810140949.XA Active CN108155669B (en) | 2018-02-11 | 2018-02-11 | Energy feedback type electronic load device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108155669B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110768529A (en) * | 2019-11-29 | 2020-02-07 | 中原工学院 | Energy feedback type direct current electronic load topological structure based on direct current micro-grid and control method |
| CN111522273A (en) * | 2020-05-08 | 2020-08-11 | 山东华天电气有限公司 | Energy feedback type programmable electronic load adjusting method and device |
| CN111929503A (en) * | 2020-08-17 | 2020-11-13 | 苏州万瑞达电气有限公司 | Insulation resistance testing device and method for fuel cell test |
| CN112086956A (en) * | 2020-08-30 | 2020-12-15 | 苏州万瑞达电气有限公司 | Fuel cell testing source-mounted integrated power supply |
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| CN110768529A (en) * | 2019-11-29 | 2020-02-07 | 中原工学院 | Energy feedback type direct current electronic load topological structure based on direct current micro-grid and control method |
| CN111522273A (en) * | 2020-05-08 | 2020-08-11 | 山东华天电气有限公司 | Energy feedback type programmable electronic load adjusting method and device |
| CN111929503A (en) * | 2020-08-17 | 2020-11-13 | 苏州万瑞达电气有限公司 | Insulation resistance testing device and method for fuel cell test |
| CN111929503B (en) * | 2020-08-17 | 2023-07-21 | 苏州万瑞达电气有限公司 | Insulation impedance testing device and method for fuel cell testing |
| CN112086956A (en) * | 2020-08-30 | 2020-12-15 | 苏州万瑞达电气有限公司 | Fuel cell testing source-mounted integrated power supply |
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| Publication number | Publication date |
|---|---|
| CN108155669B (en) | 2024-05-28 |
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