CN211698005U - Output electrical characteristic simulator of proton exchange membrane fuel cell - Google Patents
Output electrical characteristic simulator of proton exchange membrane fuel cell Download PDFInfo
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- CN211698005U CN211698005U CN201921926538.XU CN201921926538U CN211698005U CN 211698005 U CN211698005 U CN 211698005U CN 201921926538 U CN201921926538 U CN 201921926538U CN 211698005 U CN211698005 U CN 211698005U
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Abstract
The utility model relates to a proton exchange membrane fuel cell exports electrical characteristic analogue means, include: the device comprises an alternating current voltage and current sensor, a PWM (pulse-width modulation) rectification module, a direct current bus voltage and current sensor, a DC/DC conversion module, an output voltage and current sensor, a control module, a human-computer interface and a communication module. The utility model discloses the device that can simulate fuel cell output electrical characteristic replaces actual fuel cell, need not to provide the required complex condition of fuel cell normal work to reduce cost and risk, shorten development cycle.
Description
Technical Field
The utility model relates to a proton exchange membrane fuel cell exports electrical characteristic analogue means belongs to proton exchange membrane fuel cell technical field.
Background
The fuel cell is a new energy technology which is efficient, environment-friendly and renewable, and is widely applied to various fields. Proton Exchange Membrane Fuel Cells (PEMFCs) are suitable for mobile power supplies, electric vehicles, backup power supplies, decentralized power stations, and the like. In an application using a fuel cell as a power source, a co-debugging test with the fuel cell is required. When the fuel cell normally works, working conditions such as hydrogen, compressed air, cooling water and the like need to be provided, a series of indexes such as gas pressure, flow, temperature, humidity and the like need to be controlled, a series of problems such as hydrogen storage and hydrogen-related laboratory construction are involved, and the purchase cost and the maintenance cost of the fuel cell are high. However, in many research sites for fuel cell applications, the gas control and thermal management are not concerned, but only the electrical characteristics of the fuel cell, such as the output voltage, current, power, etc., such as a DC/DC converter dedicated to the fuel cell, a load, and joint debugging of a power system of a fuel cell vehicle. The output electrical characteristics of the fuel cell are special and cannot be simulated by the conventional power supply. The utility model discloses based on power electronic technology, provide on the basis of a large amount of experimental data and take out typical fuel cell output electrical characteristic curve, can simulate real fuel cell output electrical characteristic, can replace actual fuel cell in specific research occasion, need not to provide complicated operating condition for fuel cell to reduce cost and risk, shorten development cycle.
SUMMERY OF THE UTILITY MODEL
The utility model provides a proton exchange membrane fuel cell electrical property analogue means constructs a device that can simulate fuel cell output electrical property and replaces actual fuel cell, need not to provide the required complex condition of fuel cell normal work to reduce cost and risk, shorten development cycle.
In order to solve the technical problem, the utility model discloses the following technical scheme of accessible realizes:
the utility model relates to a proton exchange membrane fuel cell exports electrical property analogue means, its characterized in that includes: the system comprises an alternating current voltage and current sensor, a PWM (pulse-width modulation) rectification module, a direct current bus voltage and current sensor, a DC/DC conversion module, an output voltage and current sensor, a control module, a human-computer interface and a communication module;
the alternating voltage and current sensor collects alternating voltage and current information input into the PWM rectification module, converts the alternating voltage and current information into signals capable of being received by the control module and transmits the signals to the control module; the alternating current voltage current sensor comprises an alternating current input end, an alternating current output end and a signal output end, wherein the alternating current input end is connected with a three-phase alternating current network, the alternating current output end is connected with the PWM rectification module, and the signal output end is connected with the control module;
the direct current bus voltage and current sensor is used for collecting direct current voltage and current information input into the DC/DC conversion module, converting the direct current voltage and current information into signals capable of being received by the control module and transmitting the signals to the control module; the direct current bus voltage and current sensor comprises a direct current input end, a direct current output end and a signal output end, the direct current input end is connected with the PWM rectification module, the direct current output end is connected with the DC/DC conversion module, and the signal output end is connected with the control module;
the PWM rectification module converts the input three-phase alternating voltage into direct voltage and can control the size of the direct voltage; the PWM rectification module comprises an alternating current input end, a direct current output end and a signal input end, the alternating current input end is connected with the alternating current voltage current sensor, the direct current output end is connected with the direct current bus voltage current sensor, and the signal input end is connected with the control module;
the DC/DC conversion module is used for converting the direct-current voltage output by the PWM rectification module into voltage and current with the electrical characteristics highly similar to those of the proton exchange membrane fuel cell; the DC/DC conversion module comprises a direct current input end, a direct current output end and a signal input end, the direct current input end is connected with the direct current voltage current sensor, the direct current output end is connected with the output voltage current sensor, and the signal input end is connected with the control module;
the output voltage and current sensor is used for acquiring direct current voltage and current information at the output end of the device, converting the direct current voltage and current information into signals which can be received by the control module and transmitting the signals to the control module; the output voltage and current sensor comprises a direct current input end, a direct current output end and a signal output end, the direct current input end is connected with the DC/DC conversion module, the direct current output end outputs voltage and current with the electrical characteristics highly similar to those of the proton exchange membrane fuel cell, and the signal output end is connected with the control module;
the control module outputs signals for controlling the PWM rectification module and the DC/DC conversion module by receiving input information of the human-computer interface and the communication module and acquiring feedback signals of the alternating current voltage and current sensor, the direct current bus voltage and current sensor and the output voltage and current sensor, generates corresponding electrical characteristic simulation curves of voltage, current and power of the fuel cell, feeds operating states and parameters back to the human-computer interface and sends the operating states and parameters to external equipment for establishing communication through the communication module;
the human-computer interface is connected with the control module and is used for carrying out bidirectional data transmission;
and the communication module is connected with the control module and exchanges data with external equipment.
The alternating current voltage sensor is composed of an alternating current voltage sensor, an alternating current sensor and an auxiliary circuit, the alternating current voltage sensor is used for collecting each phase voltage instantaneous value of input alternating current, and the alternating current sensor is used for collecting each phase current instantaneous value of the input alternating current; the alternating current voltage sensor is connected in parallel with the alternating current input end, the alternating current sensor is connected in series with the alternating current input end, and the input end of the auxiliary circuit is connected with the output ends of the alternating current voltage sensor and the alternating current sensor.
The PWM rectification module is composed of a power electronic switching tube, an inductor, a capacitor and a corresponding auxiliary circuit, the PWM rectification module converts input alternating current into direct current, and the power electronic switching tube forms a bridge rectification circuit.
The direct current bus voltage and current sensor consists of a direct current voltage sensor, a direct current sensor and an auxiliary circuit, wherein the direct current voltage sensor acquires the voltage value of the output direct current, and the direct current sensor has the function of acquiring the current value of the output direct current; the direct current voltage sensor is connected in parallel with the direct current output end, the direct current sensor is connected in series with the direct current output end, and the auxiliary circuit is connected with the output ends of the direct current voltage sensor and the direct current sensor.
The output voltage current sensor is composed of a direct current voltage sensor, a direct current sensor and an auxiliary circuit, the direct current voltage sensor collects a voltage value of output direct current, the direct current sensor has the function of collecting a current value of the output direct current, the direct current voltage sensor is connected to a direct current output end in parallel, the direct current sensor is connected to the direct current output end in series, and the auxiliary circuit is connected to output ends of the direct current voltage sensor and the direct current sensor.
The human-computer interface comprises an information display unit and an input unit, wherein the information display unit is in a touch screen, a liquid crystal display or a digital tube form, and the information input unit is in a touch screen, a keyboard or a knob form.
The communication mode of the communication module comprises RS232, RS485, USB, Ethernet or CAN.
Compared with the prior art, the utility model the advantage lie in: the utility model discloses can simulate fuel cell output electrical characteristic in occasions such as the special DC/DC converter test of fuel cell, load test to replace actual fuel cell, need not to provide the required complex condition of fuel cell normal work, thereby reduce cost and risk, shorten development cycle.
Drawings
Fig. 1 is a block diagram of the present invention.
In the figure: the device comprises an alternating current voltage and current sensor 1, a PWM rectification module 2, a direct current bus voltage and current sensor 3, a DC/DC conversion module 4, an output voltage and current sensor 5, a control module 6, a human-computer interface 7 and a communication module 8.
Detailed Description
The invention will be described in detail with reference to the following drawings and specific embodiments:
as shown in fig. 1, the utility model discloses a fuel cell output electrical characteristic simulation device, including alternating current voltage current sensor 1, PWM rectifier module 2, direct current bus voltage current sensor 3, DC/DC conversion module 4, output voltage current sensor 5, control module 6, human-computer interface 7 and communication module 8. The alternating current voltage and current sensor 1 comprises an alternating current input end, an alternating current output end and a signal output end, wherein the alternating current input end is connected with a three-phase alternating current network, the alternating current output end is connected with the PWM rectification module 2, and the signal output end is connected with the control module 6; the PWM rectification module 2 comprises an alternating current input end, a direct current output end and a signal input end, wherein the alternating current input end is connected with the alternating current voltage and current sensor 1, the direct current output end is connected with the direct current bus voltage and current sensor 3, and the signal input end is connected with the control module 6; the direct current bus voltage and current sensor 3 comprises a direct current input end, a direct current output end and a signal output end, the direct current input end is connected with the PWM rectification module 2, the direct current output end is connected with the DC/DC conversion module 4, and the signal output end is connected with the control module 6; the DC/DC conversion module 4 comprises a direct current input end, a direct current output end and a signal input end, wherein the direct current input end is connected with the direct current voltage current sensor 3, the direct current output end is connected with the output voltage current sensor 5, and the signal input end is connected with the control module 6; the output voltage and current sensor 5 comprises a direct current input end, a direct current output end and a signal output end, wherein the direct current input end is connected with the DC/DC conversion module 4, and the signal output end is connected with the control module 6; the human-computer interface 7 is connected with the control module 6; the communication module 8 is connected with the control module 6.
The alternating voltage and current sensor 1 is composed of an alternating voltage sensor, an alternating current sensor and an auxiliary circuit, and is used for collecting alternating voltage and current information input into the PWM rectification module, converting the alternating voltage and current information into signals which can be received by the control module and transmitting the signals to the control module.
The PWM rectifier module 2 is composed of a power electronic switching tube, an inductor, a capacitor, and a corresponding auxiliary circuit, and functions to convert an input three-phase ac voltage into a dc voltage and control the dc voltage.
The direct current bus voltage and current sensor 3 is composed of a direct current voltage sensor, a direct current sensor and an auxiliary circuit, and is used for collecting direct current voltage and current information input into the DC/DC conversion module, converting the direct current voltage and current information into signals which can be received by the control module and transmitting the signals to the control module.
The DC/DC conversion module 4 is composed of a power electronic switch tube, an inductor, a capacitor and a corresponding auxiliary circuit, and is used for converting the direct current voltage output by the PWM rectification module into voltage and current with the electrical characteristics highly similar to those of the proton exchange membrane fuel cell.
The output voltage and current sensor 5 is composed of a direct current voltage sensor, a direct current sensor and an auxiliary circuit, and is used for acquiring direct current voltage and current information at the output end of the device, converting the direct current voltage and current information into signals which can be received by the control module and transmitting the signals to the control module.
The control module 6 is an MUC and is provided with a core calculation and processing unit, control parameters of the fuel cell simulation device are written in, signals for controlling the PWM rectifier module 2 and the DC/DC conversion module 4 can be output by receiving input information of the human-computer interface 7 and the communication module 8, collecting feedback signals of the alternating voltage and current sensor 1, the direct current bus voltage and current sensor 3 and the output voltage and current sensor 5, and accordingly corresponding simulation curves of electrical characteristics of voltage, current, power and the like of the fuel cell are generated, and the running state and the parameters of the device are fed back to the human-computer interface 7 and are sent to other equipment for establishing communication with the device through the communication module 8.
The human-computer interface 7 comprises an information display unit and an input unit, wherein the information display unit can be in the forms of a touch screen, a liquid crystal display, a nixie tube and the like, and the information input unit can be in the forms of a touch screen, a keyboard, a knob and the like; and the human-computer interface and the control module perform bidirectional data transmission. The parameters that can be set on the human-machine interface 7 include, but are not limited to, the following: fuel cell operating temperature, fuel cell rated voltage, current, power, open circuit voltage, limiting current density, single cell ohmic resistance, and the like. The following may be displayed on the human-machine interface 7, but is not limited to: fuel cell operating temperature, reactant gas pressure, fuel cell power rating, fuel cell voltage rating, fuel cell open circuit voltage, current density, fuel cell real time voltage, fuel cell real time current, fuel cell real time power, and the like.
The communication module 8 is used for establishing communication connection between the control module 6 and other equipment to exchange data, and the data exchange content is the same as the content set and displayed in the human-computer interface 7. Communication means include, but are not limited to, RS232, RS485, USB, ethernet, CAN, etc.
The utility model discloses can simulate fuel cell output electrical characteristic in occasions such as the special DC/DC converter test of fuel cell, load test to replace actual fuel cell, need not to provide the required complex condition of fuel cell normal work, thereby reduce cost and risk, shorten development cycle.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. An apparatus for simulating an output electrical characteristic of a proton exchange membrane fuel cell, comprising: the system comprises an alternating current voltage and current sensor, a PWM (pulse-width modulation) rectification module, a direct current bus voltage and current sensor, a DC/DC conversion module, an output voltage and current sensor, a control module, a human-computer interface and a communication module;
the alternating voltage and current sensor collects alternating voltage and current information input into the PWM rectification module, converts the alternating voltage and current information into signals capable of being received by the control module and transmits the signals to the control module; the alternating current voltage current sensor comprises an alternating current input end, an alternating current output end and a signal output end, wherein the alternating current input end is connected with a three-phase alternating current network, the alternating current output end is connected with the PWM rectification module, and the signal output end is connected with the control module;
the direct current bus voltage and current sensor is used for collecting direct current voltage and current information input into the DC/DC conversion module, converting the direct current voltage and current information into signals capable of being received by the control module and transmitting the signals to the control module; the direct current bus voltage and current sensor comprises a direct current input end, a direct current output end and a signal output end, the direct current input end is connected with the PWM rectification module, the direct current output end is connected with the DC/DC conversion module, and the signal output end is connected with the control module;
the PWM rectification module converts the input three-phase alternating voltage into direct voltage and can control the size of the direct voltage; the PWM rectification module comprises an alternating current input end, a direct current output end and a signal input end, the alternating current input end is connected with the alternating current voltage current sensor, the direct current output end is connected with the direct current bus voltage current sensor, and the signal input end is connected with the control module;
the DC/DC conversion module is used for converting the direct-current voltage output by the PWM rectification module into voltage and current with the electrical characteristics highly similar to those of the proton exchange membrane fuel cell; the DC/DC conversion module comprises a direct current input end, a direct current output end and a signal input end, the direct current input end is connected with the direct current voltage current sensor, the direct current output end is connected with the output voltage current sensor, and the signal input end is connected with the control module;
the output voltage and current sensor is used for acquiring direct current voltage and current information at the output end of the device, converting the direct current voltage and current information into signals which can be received by the control module and transmitting the signals to the control module; the output voltage and current sensor comprises a direct current input end, a direct current output end and a signal output end, the direct current input end is connected with the DC/DC conversion module, the direct current output end outputs voltage and current with the electrical characteristics highly similar to those of the proton exchange membrane fuel cell, and the signal output end is connected with the control module;
the control module outputs signals for controlling the PWM rectification module and the DC/DC conversion module by receiving input information of the human-computer interface and the communication module and acquiring feedback signals of the alternating current voltage and current sensor, the direct current bus voltage and current sensor and the output voltage and current sensor, generates corresponding electrical characteristic simulation curves of voltage, current and power of the fuel cell, feeds operating states and parameters back to the human-computer interface and sends the operating states and parameters to external equipment for establishing communication through the communication module;
the human-computer interface is connected with the control module and is used for carrying out bidirectional data transmission;
and the communication module is connected with the control module and exchanges data with external equipment.
2. The pem fuel cell output electrical characteristics simulation apparatus of claim 1 wherein: the alternating current voltage sensor is composed of an alternating current voltage sensor, an alternating current sensor and an auxiliary circuit, the alternating current voltage sensor is used for collecting each phase voltage instantaneous value of input alternating current, and the alternating current sensor is used for collecting each phase current instantaneous value of the input alternating current; the alternating current voltage sensor is connected in parallel with the alternating current input end, the alternating current sensor is connected in series with the alternating current input end, and the input end of the auxiliary circuit is connected with the output ends of the alternating current voltage sensor and the alternating current sensor.
3. The pem fuel cell output electrical characteristics simulation apparatus of claim 1 wherein: the DC/DC conversion module consists of a power electronic switching tube, an inductor, a capacitor and a corresponding auxiliary circuit, and has the function of lifting and lowering a direct-current voltage according to a voltage curve and controlling an output voltage value.
4. The pem fuel cell output electrical characteristics simulation apparatus of claim 1 wherein: the PWM rectification module is composed of a power electronic switching tube, an inductor, a capacitor and a corresponding auxiliary circuit, the PWM rectification module converts input alternating current into direct current, and the power electronic switching tube forms a bridge rectification circuit.
5. The pem fuel cell output electrical characteristics simulation apparatus of claim 1 wherein: the direct current bus voltage and current sensor consists of a direct current voltage sensor, a direct current sensor and an auxiliary circuit, wherein the direct current voltage sensor acquires the voltage value of the output direct current, and the direct current sensor has the function of acquiring the current value of the output direct current; the direct current voltage sensor is connected in parallel with the direct current output end, the direct current sensor is connected in series with the direct current output end, and the auxiliary circuit is connected with the output ends of the direct current voltage sensor and the direct current sensor.
6. The pem fuel cell output electrical characteristics simulation apparatus of claim 1 wherein: the output voltage current sensor is composed of a direct current voltage sensor, a direct current sensor and an auxiliary circuit, the direct current voltage sensor collects a voltage value of output direct current, the direct current sensor has the function of collecting a current value of the output direct current, the direct current voltage sensor is connected to a direct current output end in parallel, the direct current sensor is connected to the direct current output end in series, and the auxiliary circuit is connected to output ends of the direct current voltage sensor and the direct current sensor.
7. The pem fuel cell output electrical characteristics simulation apparatus of claim 1 wherein: the human-computer interface comprises an information display unit and an input unit, wherein the information display unit is in a touch screen, a liquid crystal display or a digital tube form, and the information input unit is in a touch screen, a keyboard or a knob form.
8. The pem fuel cell output electrical characteristics simulation apparatus of claim 1 wherein: the communication mode of the communication module comprises RS232, RS485, USB, Ethernet or CAN.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865252A (en) * | 2019-11-06 | 2020-03-06 | 北京重理能源科技有限公司 | Output electrical characteristic simulation device of proton exchange membrane fuel cell and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865252A (en) * | 2019-11-06 | 2020-03-06 | 北京重理能源科技有限公司 | Output electrical characteristic simulation device of proton exchange membrane fuel cell and control method thereof |
| CN110865252B (en) * | 2019-11-06 | 2024-05-07 | 北京重理能源科技有限公司 | Output electric characteristic simulation device of proton exchange membrane fuel cell and control method thereof |
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