A hydrogen fuel cell system durability test bench system and control method

Abstract

The present invention discloses a hydrogen fuel cell system durability test bench system and control method, the test bench system includes a hydrogen fuel cell system durability test bench execution module, a hydrogen fuel cell system durability test bench control module and a safety detection and data storage module, the hydrogen fuel cell system durability test bench execution module includes a command controller system, a hydrogen fuel cell system, a 12V / 24V low-voltage power supply system, a power supply, an energy storage system, a rectifier, an inverter and a power grid, the output end of the command controller system is connected to the hydrogen fuel cell system, and the input end of the hydrogen fuel cell system is connected to the 12V / 24V low-voltage power supply system. The test bench system has the advantages of energy saving, simple control, convenient operation, wide applicability, etc., and is compatible with 12V and 24V hydrogen fuel cell systems, basically covering all voltage platforms of hydrogen fuel cell systems on the market.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen fuel cells, and in particular to a hydrogen fuel cell system durability test bench system and a control method. Background Art

[0002] With the popularization and promotion of hydrogen fuel new energy vehicles, hydrogen fuel cell systems are increasingly being installed on hydrogen energy vehicles. However, the test bench and control method for the durability test of the hydrogen fuel cell system are still imperfect. The present invention is based on the current hydrogen fuel cell system or may be widely used in the future. For this reason, we propose a hydrogen fuel cell system durability test bench system and control method. Summary of the invention

[0003] The object of the present invention is to provide a hydrogen fuel cell system durability test bench system and control method to solve the problems raised in the above background technology.

[0004] A hydrogen fuel cell system durability test bench system, including a hydrogen fuel cell system durability test bench execution module, a hydrogen fuel cell system durability test bench control module and a safety detection and data storage module, the hydrogen fuel cell system durability test bench execution module includes a command controller system, a hydrogen fuel cell system, a 12V / 24V low-voltage power supply system, a power supply and energy storage system, a rectifier, an inverter and a power grid, the output end of the command controller system is connected to the hydrogen fuel cell system, the input end of the hydrogen fuel cell system is connected to the 12V / 24V low-voltage power supply system, the output end of the hydrogen fuel cell system is connected to the power supply and energy storage system, the output end of the power supply and energy storage system is connected to the rectifier and inverter, and the output end of the rectifier and inverter is connected to the power grid;

[0005] The control module of the hydrogen fuel cell system durability test bench includes a start switch, a shutoff switch, a computer configuration system, a timing trigger system and a command controller configuration system, the output end of the command controller system is connected in parallel with the start switch and the shutoff switch, the input end of the command controller system is connected with the timing trigger system and the command controller configuration system, and the input end of the timing trigger system is connected with the computer configuration system;

[0006] The safety detection and data storage module includes a data storage backup device, a safety detection device and an audible and visual alarm. The output end of the hydrogen fuel cell system is connected to the data storage backup device, the output end of the command controller system is connected to the audible and visual alarm, and the input end of the command controller system is connected to the safety detection device.

[0007] Preferably, the 12V / 24V low-voltage power supply system provides voltage power supply for the hydrogen fuel cell system.

[0008] Preferably, the rectifier and inverter invert the DC current in the power supply and energy storage system into electric energy with the same frequency and amplitude as the grid current and transmit the electric energy to the grid.

[0009] Preferably, the computer configuration system is used to configure automatic closing and opening command configurations.

[0010] Preferably, the data storage backup device collects and stores the data during the operation of the entire hydrogen fuel cell system durability test bench system.

[0011] A control method based on the above-mentioned hydrogen fuel cell system durability test bench system: including a manual control method, an automatic control method and an alarm method, wherein the manual control method and the automatic control method respectively and independently control the test bench system to test the hydrogen fuel cell system, and the alarm method is used to monitor the status of the test bench system during the process of the test bench system being controlled by the manual control method and the automatic control method, so as to ensure the safety of the test bench system during the testing process.

[0012] Preferably, the manual control method includes the following process: after the hydrogen fuel cell system durability test bench system is manually started, the hydrogen fuel cell system durability test bench system is ready; the control instruction system detects the start switch state; if the start switch state is disconnected, the switch state is detected until it is closed; if the start switch state is closed, the control instruction system sends a hydrogen fuel cell system start command, and the hydrogen fuel cell system starts working.

[0013] Preferably, the automatic control method includes the following process: after the hydrogen fuel cell system durability test bench system is manually started, the hydrogen fuel cell system durability test bench system is ready, and the operator configures the computer configuration system as needed to set automatic start and stop conditions; the timing trigger system automatically starts and stops according to the set conditions, and when the conditions are triggered, it sends a start request and a close request, and the control instruction system detects the status of the timing trigger system; if there is no start request, the timing trigger system status is detected until there is a start request, and if there is a start request, the control instruction system sends a hydrogen fuel cell system start command, and the hydrogen fuel cell system starts working.

[0014] Preferably, the alarm method includes the following process: after the hydrogen fuel cell system durability test bench system is manually started, the hydrogen fuel cell system durability test bench system is ready; the control command system detects the status of the safety detection device; if the safety detection device does not alarm, the status of the safety detection device is continuously detected until an alarm is issued; if there is an alarm, the control command system sends a hydrogen fuel cell system shutdown command and issues an audible and visual alarm; the hydrogen fuel cell system begins to shut down.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the hydrogen fuel cell system durability test bench system has the advantages of energy saving, simple control, convenient operation, wide applicability, etc., and is compatible with 12V and 24V hydrogen fuel cell systems, basically covering all voltage platforms of hydrogen fuel cell systems on the market, and has a wide range of applications; it can provide the high-voltage energy consumption required for starting the hydrogen fuel cell system, and at the same time can store the electric energy generated by the hydrogen fuel cell system, which is convenient for next use and saves energy; it can provide an electric energy conversion device, which can convert the stored electric energy into electric energy that can be used by the power grid and transmit it to the power grid, so as to achieve the purpose of saving energy and improving energy utilization efficiency; it can provide an electric energy conversion device, which can convert the electric energy of the power grid into electric energy that can be used by the energy storage device and transmit it to the energy storage device, It greatly facilitates the use of the hydrogen fuel cell system durability test bench system, and there is no need to connect an additional charging device to replenish energy for the energy storage device; it can provide an electric energy conversion device with a manual control function, which can realize manual control of the opening and closing of the hydrogen fuel cell system, and is easy to operate; it has an automatic control function, which can realize automatic control of the opening and closing of the hydrogen fuel cell system according to the configuration file of the required working conditions, and realize the automatic control function; in the case of the hydrogen fuel cell system with its own safety protection function, an additional safety detection device is designed to make the hydrogen fuel cell system durability test bench system safer and more reliable; it provides a data storage backup device, which can obtain the hydrogen fuel cell system durability test data in real time, and automatically complete the hydrogen fuel cell system durability test data backup for analysis by relevant personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a hydrogen fuel cell system durability test bench system of the present invention;

[0017] Figure 2 This is a flow chart of a manual control method of a hydrogen fuel cell system durability test bench system of the present invention;

[0018] Figure 3 This is a flow chart of an automatic control method of a hydrogen fuel cell system durability test bench system of the present invention;

[0019] Figure 4 The present invention is a flowchart of an alarm method for a hydrogen fuel cell system durability test bench system.

[0020] In the figure: 130, command controller system; 140, hydrogen fuel cell system; 150, 12V / 24V low-voltage power supply system; 160, supply and storage system; 170, rectifier and inverter; 180, power grid; 210, start switch; 220, close switch; 230, computer configuration system; 240, timing trigger system; 250, command controller configuration system; 310, data storage backup device; 320, safety detection device; 330, sound and light alarm. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1 The present invention provides a hydrogen fuel cell system durability test bench system, including a hydrogen fuel cell system durability test bench execution module, a hydrogen fuel cell system durability test bench control module and a safety detection and data storage module. The hydrogen fuel cell system durability test bench execution module includes a command controller system 130, a hydrogen fuel cell system 140, a 12V / 24V low-voltage power supply system 150, a power supply and energy storage system 160, a rectifier and inverter 170 and a power grid 180. The output end of the command controller system 130 is connected to the hydrogen fuel cell system 140, the input end of the hydrogen fuel cell system 140 is connected to the 12V / 24V low-voltage power supply system 150, the output end of the hydrogen fuel cell system 140 is connected to the power supply and energy storage system 160, the output end of the power supply and energy storage system 160 is connected to the rectifier and inverter 170, and the output end of the rectifier and inverter 170 is connected to the power grid 180; wherein, the command controller system 130 Responsible for controlling the start and shut down of the hydrogen fuel cell system 140 after receiving external signals; controlling the hydrogen fuel cell system 140 to be the hydrogen fuel cell system to be tested; the 12V / 24V low-voltage power supply system 150 is responsible for providing voltage power supply for the hydrogen fuel cell system 140, and can realize the switching between 12V and 24V power supply modes according to the voltage platform of the hydrogen fuel cell system 140; the high-voltage energy supply and energy storage system 160 can provide the energy required for the hydrogen fuel cell system 140 to start, and can also store the electric energy generated after the hydrogen fuel cell system 140 starts; the rectifier and inverter 170 can invert the DC current in the energy supply and energy storage system 160 into electric energy with the same frequency and amplitude as the current of the power grid 180, and transmit the electric energy to the power grid 180, and at the same time rectify the electric energy of the power grid 180 into DC power to replenish the power supply and energy storage system 160; the power grid 180 absorbs the electric energy transmitted by the inverter or transmits electric energy to the rectifier;

[0023] The control module of the hydrogen fuel cell system durability test bench includes a start switch 210, a shutoff switch 220, a computer configuration system 230, a timing trigger system 240 and a command controller configuration system 250; the output end of the command controller system 130 is connected in parallel with the start switch 210 and the shutoff switch 220, the input end of the command controller system 130 is connected with the timing trigger system 240 and the command controller configuration system 250, and the input end of the timing trigger system 240 is connected with the computer configuration system 230; wherein, when the command control system 130 receives that the command switch state is closed, the command controller system 130 will send a start command to the hydrogen fuel cell system 140, and when the shutoff switch state is detected to be closed, the command controller system 130 will send a shutoff command to the hydrogen fuel cell system 140; when the start When the states of the start switch 210 and the shutdown switch 220 are both closed, the command controller system 130 will send a shutdown command to the hydrogen fuel cell system 140; the shutdown switch 220 has a higher processing priority than the start switch 210, and the priority ranking is configured in the command controller configuration system 250; the 230 computer configuration system is used to configure the automatic shutdown and start command configuration, and the timing trigger system 240 is used to give the corresponding instructions to the command controller system 130 when the corresponding timing state is reached; when the command controller system 130 receives the corresponding instruction from the timing trigger system 240, it performs the hydrogen fuel cell system power on and off operation, wherein, when the manual operation signal and the automatic operation signal exist at the same time, the manual operation signal has a higher priority than the automatic operation signal, and the priority ranking is configured in the command controller configuration system 250;

[0024] The safety detection and data storage module includes a data storage backup device 310, a safety detection device 320 and an audible and visual alarm 330. The output end of the hydrogen fuel cell system 140 is connected to the data storage backup device 310, the output end of the command controller system 130 is connected to the audible and visual alarm 330, and the input end of the command controller system 130 is connected to the safety detection device 320; wherein, the data storage backup device 310 is responsible for collecting and storing the data during the operation of the entire hydrogen fuel cell system durability test bench system, so as to facilitate relevant personnel to analyze and call data; the safety detection device 320 is responsible for monitoring the operating status of the entire hydrogen fuel cell system durability test bench system, including hydrogen safety, power device temperature and power device load conditions. When the operating status of the hydrogen fuel cell system durability test bench system is abnormal, the alarm status is sent to the command control system 130 in time, and the command control system 130 controls the hydrogen fuel cell system 140 to shut down. At the same time, the safety detection device will sound and light alarm to remind the staff to leave. When manual control, automatic control and alarm status occur simultaneously, the priority of the alarm status is greater than manual control and greater than automatic control respectively; the priority ranking is configured in the command controller configuration system 250; when the sound and light alarm 330 detects an alarm in the safety detection device, the command control system 130 will control the sound and light alarm 330 to start working and make a sound and light alarm.

[0025] The present invention also provides a control method based on the above-mentioned hydrogen fuel cell system durability test bench system: including a manual control method, an automatic control method and an alarm method, wherein the manual control method and the automatic control method respectively and independently control the test bench system to test the hydrogen fuel cell system, and the alarm method is used to monitor the status of the test bench system during the process of the test bench system being controlled by the manual control method and the automatic control method, so as to ensure the safety of the test bench system during the testing process.

[0026] Specifically, please refer to Figure 2 , the manual control method comprises the following steps:

[0027] Step 1: After the hydrogen fuel cell system durability test bench system is manually started, the hydrogen fuel cell system durability test bench system is ready;

[0028] Step 2: The control instruction system detects the state of the start switch; if the start switch state is open, the switch state is detected until it is closed;

[0029] Step 3: If the start switch is closed, the control command system sends a hydrogen fuel cell system start command, and the hydrogen fuel cell system starts working;

[0030] Working process: When the hydrogen fuel cell system is started, it needs to provide the required electricity for starting from the outside. At this time, the supply and energy storage system can provide electricity for the hydrogen fuel cell to start; when the hydrogen fuel cell system is started, it will continuously generate electricity, and the generated electricity will be stored in the supply and energy storage system. If there is a lot of electricity reserve in the supply and energy storage system, the electricity of the supply and energy storage system will be converted into AC power that can be absorbed by the power grid through the inverter, and finally output to the power grid. When the electricity reserve in the supply and energy storage system is less, the electricity of the power grid is converted into electricity that can be absorbed by the supply and energy storage system through the rectifier, and stored by the supply and energy storage system to complete the power replenishment of the supply and energy storage system.

[0031] Step 4: The control instruction system detects the state of the off switch; if the off switch state is open, the switch state is detected until it is closed;

[0032] Step 5: If the shutdown switch is closed, the control command system sends a hydrogen fuel cell system shutdown command, and the hydrogen fuel cell system starts to shut down. The process jumps to step 1 for loop control.

[0033] Please refer to Figure 3 , the automatic control method comprises the following steps:

[0034] Step 1: After the hydrogen fuel cell system durability test bench system is manually started, the hydrogen fuel cell system durability test bench system is ready;

[0035] Automatic control configuration process: The operator configures the computer configuration system according to needs and sets automatic opening and closing conditions; the timing trigger system automatically opens and closes the conditions according to the settings, and sends opening and closing requests when the conditions are triggered.

[0036] Step 2: The control instruction system detects the state of the timing trigger system; if there is no opening request, the timing trigger system state is continuously detected until there is an opening request;

[0037] Step 3: If there is a start request, the control instruction system sends a hydrogen fuel cell system start command, and the hydrogen fuel cell system starts working;

[0038] Workflow:

[0039] When the hydrogen fuel cell system is started, it needs to provide the required electricity for starting from the outside. At this time, the supply and energy storage system can provide electricity for the hydrogen fuel cell to start; when the hydrogen fuel cell system is started, it will continuously generate electricity, and the generated electricity will be stored in the supply and energy storage system. If there is a lot of electricity reserve in the supply and energy storage system, the electricity of the supply and energy storage system will be converted into alternating current that can be absorbed by the power grid through the inverter, and finally output to the power grid. When the electricity reserve in the supply and energy storage system is less, the electricity of the power grid is converted into electricity that can be absorbed by the supply and energy storage system through the rectifier, and stored by the supply and energy storage system to complete the power replenishment of the supply and energy storage system.

[0040] Step 4: The control instruction system detects the state of the timing trigger system; if there is no shutdown request, the timing trigger system state is continuously detected until there is a shutdown request;

[0041] Step 5: If there is a shutdown request, the control instruction system sends a hydrogen fuel cell system shutdown command, the hydrogen fuel cell system starts to shut down, and the process jumps to step 1 for loop control.

[0042] Please refer to Figure 4 , the alarm method comprises the following steps:

[0043] Step 1: After the hydrogen fuel cell system durability test bench system is manually started, the hydrogen fuel cell system durability test bench system is ready;

[0044] Step 2: The control command system detects the status of the safety detection device; if the safety detection device does not alarm, the status of the safety detection device is continuously detected until an alarm occurs;

[0045] Step 3: If there is an alarm, the control command system sends a hydrogen fuel cell system shutdown command and sounds and lights an alarm;

[0046] Step 4: The hydrogen fuel cell system starts shutting down.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen fuel cell system durability test bench system, comprising a hydrogen fuel cell system durability test bench execution module, a hydrogen fuel cell system durability test bench control module and a safety detection and data storage module, characterized in that: The hydrogen fuel cell system durability test bench execution module comprises a command controller system (130), a hydrogen fuel cell system (140), a 12V / 24V low-voltage power supply system (150), a power grid (180), a power supply and energy storage system (160), and a rectifier and inverter (170); the output end of the command controller system (130) is connected to the hydrogen fuel cell system (140), the input end of the hydrogen fuel cell system (140) is connected to the 12V / 24V low-voltage power supply system (150), the output end of the hydrogen fuel cell system (140) is connected to the power supply and energy storage system (160), the output end of the power supply and energy storage system (160) is connected to the rectifier and inverter (170), and the output end of the rectifier and inverter (170) is connected to the power grid (180); The hydrogen fuel cell system durability test bench control module comprises a start switch (210), a shutoff switch (220), a computer configuration system (230), a timing trigger system (240) and a command controller configuration system (250); the output end of the command controller system (130) is connected in parallel with the start switch (210) and the shutoff switch (220); the input end of the command controller system (130) is connected with the timing trigger system (240) and the command controller configuration system (250); and the input end of the timing trigger system (240) is connected with the computer configuration system (230); The safety detection and data storage module comprises a data storage backup device (310), a safety detection device (320) and an audible and visual alarm (330); the output end of the hydrogen fuel cell system (140) is connected to the data storage backup device (310), the output end of the command controller system (130) is connected to the audible and visual alarm (330), and the input end of the command controller system (130) is connected to the safety detection device (320); The 12V / 24V low-voltage power supply system (150) provides voltage power supply for the hydrogen fuel cell system (140); The computer configuration system (230) is used to configure the automatic closing and opening command configuration.

2. A hydrogen fuel cell system durability test bench system according to claim 1, characterized in that: The rectifier and inverter (170) inverts the direct current in the energy supply and storage system (160) into electric energy having the same frequency and amplitude as the current of the power grid (180) and transmits the electric energy to the power grid (180).

3. The hydrogen fuel cell system durability test bench system according to claim 1, characterized in that: The data storage backup device (310) collects and stores the data during the operation of the entire hydrogen fuel cell system durability test bench system.

4. A control method for a hydrogen fuel cell system durability test bench system according to claim 1, characterized in that: The control method includes a manual control method, an automatic control method and an alarm method, wherein the manual control method and the automatic control method respectively and independently control the test bench system to test the hydrogen fuel cell system, and the alarm method is used to monitor the state of the test bench system during the process of the test bench system being controlled by the manual control method and the automatic control method, so as to ensure the safety of the test bench system during the testing process.

5. The control method of a hydrogen fuel cell system durability test bench system according to claim 4, characterized in that: The manual control method includes the following process: after a hydrogen fuel cell system durability test bench system is manually started, the hydrogen fuel cell system durability test bench system is ready; the control command system detects the start switch state; if the start switch state is disconnected, the switch state is detected until it is closed; if the start switch state is closed, the control command system sends a hydrogen fuel cell system start command, and the hydrogen fuel cell system starts working.

6. The control method of a hydrogen fuel cell system durability test bench system according to claim 4, characterized in that: The automatic control method includes the following process: after the hydrogen fuel cell system durability test bench system is manually started, the hydrogen fuel cell system durability test bench system is ready, and the operator configures the computer configuration system according to needs and sets automatic opening and closing conditions; the timing trigger system automatically opens and closes the conditions according to the settings, and when the conditions are triggered, it sends an opening request and a closing request, and the control instruction system detects the status of the timing trigger system; if there is no opening request, the timing trigger system status is continuously detected until there is an opening request, and if there is an opening request, the control instruction system sends a hydrogen fuel cell system start-up command, and the hydrogen fuel cell system starts working.

7. The control method of a hydrogen fuel cell system durability test bench system according to claim 4, characterized in that: The alarm method includes the following process: after the hydrogen fuel cell system durability test bench system is manually started, the hydrogen fuel cell system durability test bench system is ready; the control command system detects the status of the safety detection device; if the safety detection device does not alarm, the status of the safety detection device is continuously detected until an alarm is issued; if an alarm is issued, the control command system sends a hydrogen fuel cell system shutdown command and performs an audible and visual alarm; the hydrogen fuel cell system begins to shut down.

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