CN212749082U - Hydrogen fuel cell one-way DC/DC converter test system based on PEMFC physical model - Google Patents
Hydrogen fuel cell one-way DC/DC converter test system based on PEMFC physical model Download PDFInfo
- Publication number
- CN212749082U CN212749082U CN202021374435.XU CN202021374435U CN212749082U CN 212749082 U CN212749082 U CN 212749082U CN 202021374435 U CN202021374435 U CN 202021374435U CN 212749082 U CN212749082 U CN 212749082U
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- converter
- input end
- hydrogen fuel
- bidirectional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model provides an one-way DC/DC converter test system of hydrogen fuel cell based on PEMFC physical model, include: the system comprises a battery simulator, a fuel battery simulator and a test system cabinet; firstly, setting main parameters such as the type and the test mode of a fuel cell simulator, the input and the output of a hydrogen fuel cell unidirectional DC/DC converter, cooling and the like through a test system cabinet; simulating the output voltage and current of the fuel cell to the input end of the unidirectional DC/DC converter of the fuel cell by the fuel cell simulator; outputting the voltage and current of the hydrogen fuel cell unidirectional DC/DC converter to a cell simulator after boosting and stabilizing; the cell simulator and the fuel cell simulator adopt a common direct current bus design to form a high-efficiency closed-loop energy flow. The utility model has the advantages that: the energy internal circulation flow is realized, and the effects of energy conservation and consumption reduction are achieved.
Description
Technical Field
The utility model relates to a hydrogen fuel cell field especially relates to an one-way DC/DC converter test system of hydrogen fuel cell based on PEMFC physical model.
Background
In recent years, hydrogen energy has been receiving increasing attention from all over the world as clean energy, and the automobile industry in the world is undergoing the transition and development from traditional fuel-oil automobiles to hydrogen fuel cell automobiles in the future. In order to realize the rapid development of hydrogen fuel cell automobiles in China, common and key technical problems restricting the development of hydrogen energy industry in China need to be broken through. The industrialization technology of the hydrogen energy power system and the corresponding test evaluation technology and capability are the core foundation for accelerating the industrialization of the hydrogen fuel cell automobile, and play a key role in improving the reliability, durability, environmental adaptability and safety in the industrialization of the hydrogen fuel cell automobile. Accordingly, there is an increasing need for testing of products and technologies related to areas downstream of the hydrogen energy industry chain. Neutral detection and evaluation services are provided through construction of a detection and evaluation public technology service platform, are key factors for promoting efficient linkage of the whole industrial chain of the hydrogen energy industry in China, and are important guarantees for introducing, digesting and absorbing foreign advanced technologies in China; the hydrogen fuel cell automobile power system mainly comprises a fuel cell engine, a fuel cell unidirectional DC/DC converter, a power storage battery, a controller and a motor, and a hydrogen fuel cell automobile power system architecture diagram is shown in figure 1. The fuel Cell unidirectional DC/DC converter is used as an important component of the system, and is not only related to the normal operation of FCE (Fuel Cell Engine) and BMU (Battery Management Unit), but also related to the power performance, energy utilization efficiency and reliable operation of other control systems of the whole fuel Cell car, so that the early stage is very important for the performance test of the fuel Cell unidirectional DC/DC converter.
Disclosure of Invention
In order to solve the above problem, the utility model provides an one-way DC/DC converter test system of hydrogen fuel cell based on PEMFC physical model mainly includes: the system comprises a battery simulator, a fuel battery simulator and a test system cabinet;
the test system cabinet is used for setting the type and the test mode of the fuel cell simulator and the input and output parameters of the tested hydrogen fuel cell unidirectional DC/DC converter;
the fuel cell simulator is used for simulating the output voltage and current of a certain fuel cell and transmitting the output voltage and current to the fuel cell unidirectional DC/DC converter;
the battery simulator is used for performing voltage boosting and voltage stabilizing treatment on the received voltage output by the hydrogen fuel battery unidirectional DC/DC converter so as to detect the performance of the hydrogen fuel battery unidirectional DC/DC converter;
the input end of the fuel cell simulator is connected with a three-phase power supply, the first output end and the second output end of the fuel cell simulator are respectively connected with the first input end and the second input end of the tested hydrogen fuel cell unidirectional DC/DC converter, the first output end and the second output end of the tested hydrogen fuel cell unidirectional DC/DC converter are respectively connected with the first input end and the second input end of the battery simulator, and the output end of the battery simulator is connected with the three-phase power supply; and a first signal output end and a second signal output end of the test system cabinet are respectively connected with a first input end and a second input end of the tested hydrogen fuel cell unidirectional DC/DC converter, and a third signal output end and a fourth signal output end of the test system cabinet are respectively connected with a first input end and a second input end of the battery simulator.
Further, the test system cabinet comprises a power analyzer and an oscilloscope, and is used for realizing automatic reading judgment and waveform acquisition of voltage and current data.
Furthermore, the test system cabinet also comprises a water chiller used for cooling the hydrogen fuel cell unidirectional DC/DC converter and automatically monitoring and storing cooling data, and the test system cabinet is also used for setting cooling parameters of the tested hydrogen fuel cell unidirectional DC/DC converter.
Further, the battery simulator uses Sic tubes and a bidirectional DC/DC converter topology.
Further, the battery simulator comprises a PWM rectification system, a PWM driving circuit, a PWM control circuit, a detection circuit, a bidirectional DC/DC converter, a bidirectional DC/DC driving circuit, a bidirectional DC/DC control circuit, a detection system and a display setting circuit; three-phase commercial power is input to a first input end of a PWM rectification system, an output end of the PWM rectification system is respectively connected with a first input end of a bidirectional DC/DC converter and an input end of a first detection circuit, an output end of the first detection circuit is connected with a first input end of a PWM control circuit, a first output end of the PWM control circuit is connected with an input end of a PWM drive circuit, an output end of the PWM drive circuit is connected with a second input end of the PWM rectification system, the PWM control circuit is also in bidirectional communication connection with the bidirectional DC/DC control circuit, the bidirectional DC/DC control circuit is in bidirectional connection with a display setting circuit, a first output end of the bidirectional DC/DC control circuit is connected with the input end of the bidirectional DC/DC drive circuit, an output end of the bidirectional DC/DC drive circuit is connected with the second input end of the bidirectional, the output end of the second detection circuit is connected with the first input end of the bidirectional DC/DC control circuit.
Furthermore, the battery simulator and the fuel cell simulator adopt a common direct current bus design to form a closed loop energy flow.
The utility model provides a beneficial effect that technical scheme brought is:
1. the testing system for the hydrogen fuel cell one-way DC/DC converter based on the PEMFC physical model is developed in an embedded manner, so that full-function simulation of engines of different types of fuel cells is realized, the detection requirements of the hydrogen fuel cell in different environments and different working conditions are met, and the application range of the hydrogen fuel cell testing system is wider;
2. the hydrogen fuel cell unidirectional DC/DC converter test system based on the PEMFC physical model adopts a common DC bus technology to realize energy internal circulation in the whole test system and achieve the effects of high efficiency and energy saving;
and 3, the SiC tube replaces the application of the IGBT to the high-power battery simulator, so that the volume of load equipment is greatly reduced, the self loss and the complexity of the design of a driving circuit are reduced, high efficiency and energy conservation are realized, and the high-power battery simulator has high market application value.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
FIG. 1 is a diagram of a hydrogen fuel cell vehicle power system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a testing system of a hydrogen fuel cell unidirectional DC/DC converter based on a physical model of PEMFC according to an embodiment of the present invention;
fig. 3 is a system architecture diagram of a battery simulator in an embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment of the utility model provides an one-way DC/DC converter test system of hydrogen fuel cell based on PEMFC physical model.
Referring to fig. 2-3, fig. 2 is a structural diagram of a testing system of a hydrogen fuel cell unidirectional DC/DC converter based on a PEMFC physical model according to an embodiment of the present invention, fig. 3 is a system structural diagram of a battery simulator according to an embodiment of the present invention, the testing system of the hydrogen fuel cell unidirectional DC/DC converter based on the PEMFC physical model mainly comprises three subsystems of the battery simulator, the fuel cell simulator and a testing system cabinet;
the input end of the fuel cell simulator is connected with a three-phase power supply, the first output end and the second output end of the fuel cell simulator are respectively connected with the first input end and the second input end of the tested hydrogen fuel cell unidirectional DC/DC converter, the first output end and the second output end of the tested hydrogen fuel cell unidirectional DC/DC converter are respectively connected with the first input end and the second input end of the battery simulator, and the output end of the battery simulator is connected with the three-phase power supply; and a first signal output end and a second signal output end of the test system cabinet are respectively connected with a first input end and a second input end of the tested hydrogen fuel cell unidirectional DC/DC converter, and a third signal output end and a fourth signal output end of the test system cabinet are respectively connected with a first input end and a second input end of the battery simulator.
A battery simulator: the voltage regulating circuit is used for carrying out voltage boosting and voltage stabilizing processing on the received voltage output by the hydrogen fuel cell unidirectional DC/DC converter so as to detect the performance of the hydrogen fuel cell unidirectional DC/DC converter.
The battery simulator is a high-power direct-current load in a test system, adopts a Sic tube and a high-performance bidirectional DC/DC converter topology, is matched with a high-performance control algorithm, and has design indexes under sudden load change: the voltage response speed is less than or equal to 5ms, and the output precision is less than or equal to 0.1% and FS +5 dgt.
As shown in fig. 3, the battery simulator includes a PWM rectification system, a PWM driving circuit, a PWM control circuit, a detection circuit, a bidirectional DC/DC converter, a bidirectional DC/DC driving circuit, a bidirectional DC/DC control circuit, a detection system, and a display setting circuit; the battery simulator comprises a PWM control circuit, a PWM driving circuit, a bidirectional DC/DC control circuit, a bidirectional DC/DC driving circuit, a bidirectional DC/DC converter, a first detection circuit, a second detection circuit and a display setting circuit, wherein the PWM control circuit and the PWM driving circuit are used for controlling and driving the PWM rectifying system to carry out current stabilization processing on current input in the battery simulator, the bidirectional DC/DC control circuit and the bidirectional DC/DC driving circuit are used for controlling and driving the bidirectional DC/DC converter to carry out boosting processing on voltage input in the battery simulator, the first detection circuit and the second detection circuit are respectively used for detecting the control condition of the PWM control circuit on current stabilization and the control condition of the bidirectional DC/DC control circuit on;
three-phase commercial power is input to a first input end of a PWM rectification system, an output end of the PWM rectification system is respectively connected with a first input end of a bidirectional DC/DC converter and an input end of a first detection circuit, an output end of the first detection circuit is connected with a first input end of a PWM control circuit, a first output end of the PWM control circuit is connected with an input end of a PWM drive circuit, an output end of the PWM drive circuit is connected with a second input end of the PWM rectification system, the PWM control circuit is also in bidirectional communication connection with the bidirectional DC/DC control circuit, the bidirectional DC/DC control circuit is in bidirectional connection with a display setting circuit, a first output end of the bidirectional DC/DC control circuit is connected with the input end of the bidirectional DC/DC drive circuit, an output end of the bidirectional DC/DC drive circuit is connected with the second input end of the bidirectional, the output end of the second detection circuit is connected with the first input end of the bidirectional DC/DC control circuit.
Fuel cell simulator: the device is used for simulating the output voltage and current of a certain fuel cell and transmitting the output voltage and current to the fuel cell unidirectional DC/DC converter; the hydrogen fuel cell simulator based on the PEMFC physical model developed in an embedded mode can be used for setting a fuel cell characteristic curve, current density, internal resistance, pressure, temperature and other related parameters, the output voltage of the hydrogen fuel cell simulator can change along with working conditions such as output current and the like according to the fuel cell characteristic in a test system, and the hydrogen fuel cell simulator is used for simulating the polarization curve characteristic of the fuel cell so as to test the performance of a DC/DC converter of the fuel cell under the working conditions of the polarization curve of the fuel cell.
A test system cabinet: the device is used for setting the type and the test mode of the fuel cell simulator, and the input/output parameters and the cooling parameters of the tested hydrogen fuel cell unidirectional DC/DC converter; the cooling parameters comprise the temperature and the flow of cooling liquid in an internal cooling loop of the hydrogen fuel cell unidirectional DC/DC converter, and the cooling liquid can be ethylene glycol and water 1: 1, or pure water may be used. The power analyzer and the oscilloscope used in the test system cabinet are high-precision test instruments and meters and are used for realizing automatic data reading judgment and waveform acquisition; meanwhile, the test system cabinet is designed to integrate standard operation control logic and a perfect protection control strategy, and once the operation fault occurs, the test system cabinet can be rapidly shut down for protection; the test system also integrates a water cooler which is specially used for providing cooling for a tested object, namely the hydrogen fuel cell unidirectional DC/DC converter, and automatically monitoring and storing cooling data.
The main working principle of the hydrogen fuel cell unidirectional DC/DC converter testing system based on the PEMFC physical model is as follows: firstly, setting the type and the test mode of a fuel cell simulator, the input parameters and the cooling parameters of a hydrogen fuel cell unidirectional DC/DC converter and the like through a test system cabinet; simulating the output voltage and current of the fuel cell to the input end of the unidirectional DC/DC converter of the fuel cell by the fuel cell simulator; outputting the voltage and current of the hydrogen fuel cell unidirectional DC/DC converter to a cell simulator after boosting and stabilizing; the cell simulator and the fuel cell simulator adopt a common direct current bus design to form a high-efficiency closed-loop energy flow.
The hydrogen fuel cell unidirectional DC/DC converter testing system based on the PEMFC physical model adopts a common direct current bus structure, namely a battery simulator and a fuel cell simulator share a platform, so that energy internal circulation flow is realized, and the effects of energy conservation and consumption reduction are achieved.
The utility model has the advantages that:
1. the testing system for the hydrogen fuel cell one-way DC/DC converter based on the PEMFC physical model is developed in an embedded manner, so that full-function simulation of engines of different types of fuel cells is realized, the detection requirements of the hydrogen fuel cell in different environments and different working conditions are met, and the application range of the hydrogen fuel cell testing system is wider;
2. the hydrogen fuel cell unidirectional DC/DC converter test system based on the PEMFC physical model adopts a common DC bus technology to realize energy internal circulation in the whole test system and achieve the effects of high efficiency and energy saving;
and 3, the SiC tube replaces the application of the IGBT to the high-power battery simulator, so that the volume of load equipment is greatly reduced, the self loss and the complexity of the design of a driving circuit are reduced, high efficiency and energy conservation are realized, and the high-power battery simulator has high market application value.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A hydrogen fuel cell unidirectional DC/DC converter test system based on a PEMFC physical model is used for testing the performance of a hydrogen fuel cell unidirectional DC/DC converter; the method is characterized in that: the method comprises the following steps: the system comprises a battery simulator, a fuel battery simulator and a test system cabinet;
the test system cabinet is used for setting the type and the test mode of the fuel cell simulator and the input and output parameters of the tested hydrogen fuel cell unidirectional DC/DC converter;
the fuel cell simulator is used for simulating the output voltage and current of a certain fuel cell and transmitting the output voltage and current to the fuel cell unidirectional DC/DC converter;
the battery simulator is used for performing voltage boosting and voltage stabilizing treatment on the received voltage output by the hydrogen fuel battery unidirectional DC/DC converter so as to detect the performance of the hydrogen fuel battery unidirectional DC/DC converter;
the input end of the fuel cell simulator is connected with a three-phase power supply, the first output end and the second output end of the fuel cell simulator are respectively connected with the first input end and the second input end of the tested hydrogen fuel cell unidirectional DC/DC converter, the first output end and the second output end of the tested hydrogen fuel cell unidirectional DC/DC converter are respectively connected with the first input end and the second input end of the battery simulator, and the output end of the battery simulator is connected with the three-phase power supply; and a first signal output end and a second signal output end of the test system cabinet are respectively connected with a first input end and a second input end of the tested hydrogen fuel cell unidirectional DC/DC converter, and a third signal output end and a fourth signal output end of the test system cabinet are respectively connected with a first input end and a second input end of the battery simulator.
2. A PEMFC physical model-based hydrogen fuel cell unidirectional DC/DC converter test system according to claim 1, wherein: the test system cabinet comprises a power analyzer and an oscilloscope and is used for realizing automatic reading judgment and waveform acquisition of voltage and current data.
3. A PEMFC physical model-based hydrogen fuel cell unidirectional DC/DC converter test system according to claim 1, wherein: the test system cabinet also comprises a water chiller which is used for cooling the hydrogen fuel cell unidirectional DC/DC converter and automatically monitoring and storing cooling data, and the test system cabinet is also used for setting the cooling parameters of the tested hydrogen fuel cell unidirectional DC/DC converter.
4. A PEMFC physical model-based hydrogen fuel cell unidirectional DC/DC converter test system according to claim 1, wherein: the battery simulator uses Sic tubes and a bidirectional DC/DC converter topology.
5. A PEMFC physical model-based hydrogen fuel cell unidirectional DC/DC converter test system according to claim 1, wherein: the battery simulator comprises a PWM rectification system, a PWM driving circuit, a PWM control circuit, a detection circuit, a bidirectional DC/DC converter, a bidirectional DC/DC driving circuit, a bidirectional DC/DC control circuit, a detection system and a display setting circuit; three-phase commercial power is input to a first input end of a PWM rectification system, an output end of the PWM rectification system is respectively connected with a first input end of a bidirectional DC/DC converter and an input end of a first detection circuit, an output end of the first detection circuit is connected with a first input end of a PWM control circuit, a first output end of the PWM control circuit is connected with an input end of a PWM drive circuit, an output end of the PWM drive circuit is connected with a second input end of the PWM rectification system, the PWM control circuit is also in bidirectional communication connection with the bidirectional DC/DC control circuit, the bidirectional DC/DC control circuit is in bidirectional connection with a display setting circuit, a first output end of the bidirectional DC/DC control circuit is connected with the input end of the bidirectional DC/DC drive circuit, an output end of the bidirectional DC/DC drive circuit is connected with the second input end of the bidirectional, the output end of the second detection circuit is connected with the first input end of the bidirectional DC/DC control circuit.
6. A PEMFC physical model-based hydrogen fuel cell unidirectional DC/DC converter test system according to claim 1, wherein: the battery simulator and the fuel cell simulator adopt a common direct current bus design to form a closed loop energy flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021374435.XU CN212749082U (en) | 2020-07-13 | 2020-07-13 | Hydrogen fuel cell one-way DC/DC converter test system based on PEMFC physical model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021374435.XU CN212749082U (en) | 2020-07-13 | 2020-07-13 | Hydrogen fuel cell one-way DC/DC converter test system based on PEMFC physical model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212749082U true CN212749082U (en) | 2021-03-19 |
Family
ID=75022529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021374435.XU Active CN212749082U (en) | 2020-07-13 | 2020-07-13 | Hydrogen fuel cell one-way DC/DC converter test system based on PEMFC physical model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212749082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034277A (en) * | 2020-07-13 | 2020-12-04 | 重庆地大工业技术研究院有限公司 | Hydrogen fuel cell one-way DC/DC converter test system based on PEMFC physical model |
-
2020
- 2020-07-13 CN CN202021374435.XU patent/CN212749082U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034277A (en) * | 2020-07-13 | 2020-12-04 | 重庆地大工业技术研究院有限公司 | Hydrogen fuel cell one-way DC/DC converter test system based on PEMFC physical model |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101701873A (en) | A bench test device and control method for heat-to-electricity conversion of automobile engine exhaust waste heat | |
| CN103516213A (en) | Bidirectional dc-dc converter circuit control system and hybrid power motor vehicle | |
| CN109842191B (en) | Composite power supply system and power distribution method thereof | |
| CN110943240B (en) | Control method of hydrogen engine thermal management system adopting double circulating water pumps | |
| CN104298221A (en) | Three-phase full-bridge switch circuit fault detection method and device | |
| CN105790366A (en) | Energy storage voltage-sharing charge and discharge control system for super capacitor set and charged state estimation method | |
| CN102832820B (en) | The low-voltage dc power supply energy feedback type electronic load booster system of Digital Control | |
| CN212749082U (en) | Hydrogen fuel cell one-way DC/DC converter test system based on PEMFC physical model | |
| CN211295275U (en) | Hydrogen engine heat management system adopting double-circulation water pump | |
| CN205353257U (en) | Insulating detecting system of direct current electric leakage based on adjustable resistance network | |
| CN202737749U (en) | Low-voltage DC power energy feedback electronic load boost system controlled in digitalized manner | |
| CN112952159B (en) | Method and system for testing fuel cell air compressor | |
| CN111190061B (en) | A test platform for energy storage systems | |
| CN108539835B (en) | AC-DC battery charging device | |
| CN103022969A (en) | Leakage protection device for electromobile | |
| CN211859931U (en) | An IGBT drive circuit with state monitoring and fault recording functions | |
| CN105974322B (en) | A kind of test device based on from configuration type power battery hybrid power ship | |
| CN217239520U (en) | Fuel cell detection system | |
| CN112034277A (en) | Hydrogen fuel cell one-way DC/DC converter test system based on PEMFC physical model | |
| CN213782048U (en) | Cooling and heat-dissipating system of fuel cell engine test bench | |
| CN209488245U (en) | A Composite Power System | |
| CN110133521B (en) | Efficient multi-channel battery capacity testing system and working method thereof | |
| CN209627044U (en) | An online monitoring system for track slab parameters | |
| CN202474827U (en) | Countercurrent prevention controller | |
| CN209028128U (en) | A circulating current detection device for off-board chargers of electric vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |