CN114709460B - Dual system for fuel cell and start control method thereof - Google Patents

Dual system for fuel cell and start control method thereof Download PDF

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Publication number
CN114709460B
CN114709460B CN202210256399.4A CN202210256399A CN114709460B CN 114709460 B CN114709460 B CN 114709460B CN 202210256399 A CN202210256399 A CN 202210256399A CN 114709460 B CN114709460 B CN 114709460B
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hydrogen
fuel cell
air
target
pressure
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CN114709460A (en
Inventor
马义
李学锐
张剑
宫熔
何特立
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Dongfeng Motor Corp
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Dongfeng Motor Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/249—Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • H01M8/04225—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during start-up
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
    • H01M8/04302—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Abstract

The invention discloses a fuel cell dual system and a starting control method thereof, wherein the system comprises the following components: a controller, a first fuel cell system and a second fuel cell system respectively connected with the controller, wherein the controller is used for controlling the starting of the first fuel cell system and/or the second fuel cell system; wherein: the first fuel cell system comprises a first electric pile, a first air system, a first hydrogen system and a first cooling system, wherein the first air system, the first hydrogen system and the first cooling system are respectively connected with the first electric pile, and the second fuel cell system comprises a second electric pile, a second air system, a second hydrogen system and a second cooling system, wherein the second air system, the second hydrogen system and the second cooling system are respectively connected with the second electric pile. The invention can solve the technical problem of larger power consumption of the dual system for starting the fuel cell in the prior art.

Description

Dual system for fuel cell and start control method thereof
Technical Field
The invention relates to the technical field of automobiles, in particular to a fuel cell dual system and a starting control method thereof.
Background
The fuel cell converts the gibbs free energy in the chemical energy of combustion into electric energy through electrochemical reaction without being limited by the carnot cycle effect, so that the thermal efficiency is high. Proton exchange membrane fuel cells are currently most widely used in the automotive field. Hydrogen and air required by the fuel cell reaction respectively enter the gas diffusion layer through the conduction of the cathode flow field and the anode flow field of the bipolar plate, then enter the catalytic layer through the diffusion layer, and are dissociated into protons and electrons after being adsorbed by anode catalyst particles. Protons pass through the proton exchange membrane to the cathode catalytic layer in the form of hydrated protons. Electrons cannot pass through the proton exchange membrane and can only reach the cathode from an external circuit electronic load. At the cathode catalytic layer, oxygen atoms, protons and electrons react electrochemically under the influence of a catalyst to produce water.
In the prior art, during the dual-system starting process of the fuel cell, both fuel cell systems are started simultaneously, and auxiliary systems included in the dual-system starting process are also started synchronously. However, in practice, it is found that the power consumption of the auxiliary system is large, and the power consumption of the air compressor in the fuel cell system is also large. Therefore, there is a need to propose a fuel cell dual system with low power consumption and a start control scheme thereof.
Disclosure of Invention
The embodiment of the application solves the technical problem of high power consumption of starting the fuel cell dual-system in the prior art by providing the fuel cell dual-system and the starting control method thereof.
In one aspect, the present application provides, by an embodiment of the present application, a dual fuel cell system, the system comprising: a controller, a first fuel cell system and a second fuel cell system respectively connected with the controller, wherein the controller is used for controlling the starting of the first fuel cell system and/or the second fuel cell system;
wherein: the first fuel cell system comprises a first electric pile, a first air system, a first hydrogen system and a first cooling system, wherein the first air system, the first hydrogen system and the first cooling system are respectively connected with the first electric pile, and the second fuel cell system comprises a second electric pile, a second air system, a second hydrogen system and a second cooling system, wherein the second air system, the second hydrogen system and the second cooling system are respectively connected with the second electric pile.
Optionally, the first air system comprises: the system comprises a first air flow meter, a first air compressor, a first air in-stack temperature and pressure sensor, a first air out-stack temperature and pressure sensor and a first back pressure valve; the first air flow meter, the first air compressor and the first air stack temperature and pressure sensor are sequentially connected with an air inlet of the first electric stack, and the first back pressure valve and the first air stack temperature and pressure sensor are sequentially connected with an air outlet of the first electric stack.
Optionally, the first hydrogen system includes: the hydrogen gas temperature and pressure sensor comprises a first proportional valve, a first hydrogen gas inlet stack temperature and pressure sensor, a first hydrogen gas outlet stack temperature and pressure sensor, a first gas-liquid separator, a first hydrogen return pump and a first hydrogen discharge valve; the first proportional valve and the first hydrogen gas temperature and pressure sensor are connected with the hydrogen inlet of the first electric pile in sequence, the first hydrogen discharge valve, the first gas-liquid separator and the first hydrogen gas outlet temperature and pressure sensor are connected with the hydrogen outlet of the first electric pile in sequence, and the first gas-liquid separator is connected with the first hydrogen gas temperature and pressure sensor through the first hydrogen return pump.
Optionally, the second air system comprises: the system comprises a second air flow meter, a second air compressor, a first three-way valve, a second air in-stack temperature and pressure sensor, a second air out-stack temperature and pressure sensor and a second back pressure valve; the second air flow meter, the second air compressor, the first three-way valve and the second air stack temperature and pressure sensor are sequentially connected with an air inlet of the second electric stack, one end of the first three-way valve is respectively connected with the first back pressure valve and the first air stack temperature and pressure sensor, and the second back pressure valve and the second air stack temperature and pressure sensor are sequentially connected with an air outlet of the second electric stack.
Optionally, the second hydrogen system includes: the second hydrogen gas temperature and pressure sensor, the second hydrogen gas outlet temperature and pressure sensor, the second gas-liquid separator, the second hydrogen return pump and the second hydrogen discharge valve; the second proportional valve, the second three-way valve and the second hydrogen gas temperature and pressure sensor are sequentially connected with a hydrogen inlet of the second electric pile, one end of the second three-way valve is respectively connected with the first gas-liquid separator and the first hydrogen discharge valve, the second gas-liquid separator and the second hydrogen gas temperature and pressure sensor are sequentially connected with a hydrogen outlet of the second electric pile, and the second gas-liquid separator is connected with the second hydrogen gas temperature and pressure sensor through the second hydrogen return pump.
In another aspect, the present application provides a start control method based on a dual fuel cell system, which is applied to the dual fuel cell system as described above, and includes:
receiving a battery starting instruction, wherein the battery starting instruction is used for instructing to start a target fuel cell system in the fuel cell dual system, and the target fuel cell system comprises a first fuel cell system and/or a second fuel cell system;
Responding to the battery starting instruction, and adjusting a target component in the fuel battery double system so as to enable the target fuel battery system to meet corresponding idle speed working condition;
and loading idle current to a target pile in the target fuel cell system after the idle working condition is met, so that the starting of the target fuel cell system is realized.
Optionally, the target fuel cell system is the first fuel cell system, and the adjusting the target component in the fuel cell dual system to make the target fuel cell system meet the corresponding idle working condition includes:
opening a first back pressure valve and a first hydrogen discharge valve in the fuel cell dual system, closing a first three-way valve, a second back pressure valve and a second hydrogen discharge valve in the fuel cell dual system, and adjusting the opening of the first back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under an idle working condition;
and adjusting the opening of a first proportional valve, the rotating speed of a first hydrogen return pump and the opening of the first hydrogen discharge valve in the fuel cell dual system so that the hydrogen pressure and the hydrogen flow of the first fuel cell system reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
Optionally, the battery start instruction is configured to instruct to start the first fuel cell system first and start the second fuel cell system second, and the adjusting the target component in the fuel cell dual system so that the target fuel cell system meets the corresponding idle working condition includes:
opening a first hydrogen discharge valve and a second three-way valve in the fuel cell dual system, and adjusting the opening of a second back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under an idle working condition;
adjusting the opening of the first proportional valve, the rotating speed of the first hydrogen return pump and the opening of the first hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the first fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition;
and adjusting the opening of the second proportional valve, the rotating speed of the second hydrogen return pump and the opening of the second hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the second fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
Optionally, the battery start instruction is configured to instruct to start the first fuel cell system and the second fuel cell system simultaneously, and the adjusting the target component in the fuel cell dual system so that the target fuel cell system meets the corresponding idle working condition includes:
Opening a first back pressure valve and a first hydrogen discharge valve in the fuel cell dual system, closing a first three-way valve and a second three-way valve, and adjusting the opening of the first back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under the idle working condition;
adjusting the opening degree of the second back pressure valve and the rotating speed of the second air compressor, so that the air pressure and the air flow of the second fuel cell system reach the target air pressure and the target air flow under the idle working condition;
adjusting the opening of a first proportional valve, the rotating speed of a first hydrogen return pump and the opening of a first hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the first fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under an idle working condition;
and adjusting the opening of the second proportional valve, the rotating speed of the second hydrogen return pump and the opening of the second hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the second fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
Optionally, before the responding to the battery start command, the method further includes:
Starting a cooling system in the fuel cell dual system, and synchronously establishing pressure of an air system and a hydrogen system in the fuel cell dual system;
and after the pressure is established, purging an air path and a hydrogen path in the fuel cell dual system.
In another aspect, the present application provides a starting control device based on a dual fuel cell system, which is applied to the dual fuel cell system as described above, and the device includes a receiving module, a processing module, and a loading module, where:
the receiving module is used for receiving a battery starting instruction, wherein the battery starting instruction is used for instructing to start a target fuel cell system in the fuel cell dual system, and the target fuel cell system comprises a first fuel cell system and/or a second fuel cell system;
the processing module is used for responding to the battery starting instruction and adjusting and processing target components in the fuel battery double system so that the target fuel battery system meets the corresponding idle speed working condition;
and the loading module is used for loading idle current to a target pile in the target fuel cell system after the idle working condition is met, so that the starting of the target fuel cell system is realized.
The descriptions or details not described in the embodiments of the present application may be referred to the relevant descriptions in the foregoing method embodiments, which are not repeated herein.
In another aspect, the present application provides, by an embodiment of the present application, a terminal device, including: a processor, a memory, a communication interface, and a bus; the processor, the memory and the communication interface are connected through the bus and complete communication with each other; the memory stores executable program code; the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory for executing the fuel cell dual system-based start control method as described above.
In another aspect, the present application provides a computer-readable storage medium storing a program that when run on a terminal device performs the fuel cell dual system-based start control method as described above, through an embodiment of the present application.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages: the present application provides a fuel cell dual system, the system comprising: a controller, a first fuel cell system and a second fuel cell system respectively connected with the controller, wherein the controller is used for controlling the starting of the first fuel cell system and/or the second fuel cell system; wherein: the first fuel cell system comprises a first electric pile, a first air system, a first hydrogen system and a first cooling system, wherein the first air system, the first hydrogen system and the first cooling system are respectively connected with the first electric pile, and the second fuel cell system comprises a second electric pile, a second air system, a second hydrogen system and a second cooling system, wherein the second air system, the second hydrogen system and the second cooling system are respectively connected with the second electric pile. In the scheme, any one or two fuel cell systems in the double systems can be started according to the system requirement through the controller, so that the technical problem of high power consumption of starting the double systems of the fuel cell in the prior art is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a dual fuel cell system according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of another fuel cell dual system according to an embodiment of the present application.
Fig. 3 is a schematic flow chart of a starting control method based on a dual fuel cell system according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a starting control device based on a dual fuel cell system according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
Detailed Description
The embodiment of the application solves the technical problem of high power consumption of starting the fuel cell dual-system in the prior art by providing the fuel cell dual-system and the starting control method thereof.
The technical scheme of the embodiment of the application aims to solve the technical problems, and the overall thought is as follows:
The present application provides a fuel cell dual system, the system comprising: a controller, a first fuel cell system and a second fuel cell system respectively connected with the controller, wherein the controller is used for controlling the starting of the first fuel cell system and/or the second fuel cell system; wherein: the first fuel cell system comprises a first electric pile, a first air system, a first hydrogen system and a first cooling system, wherein the first air system, the first hydrogen system and the first cooling system are respectively connected with the first electric pile, and the second fuel cell system comprises a second electric pile, a second air system, a second hydrogen system and a second cooling system, wherein the second air system, the second hydrogen system and the second cooling system are respectively connected with the second electric pile.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
First, the term "and/or" appearing herein is merely an association relationship describing associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Referring to fig. 1, a schematic structural diagram of a dual fuel cell system according to an embodiment of the present application is shown. The fuel cell dual system as shown in fig. 1 includes a first fuel cell system 1, a second fuel cell system 2, and a controller 3. The controller 3 is connected to the first fuel cell system 1 and the second fuel cell system 2, respectively, and the controller 3 is configured to control the start of the first fuel cell system 1 and/or the second fuel cell system 2. Wherein:
the first fuel cell system 1 includes a first air system 10, a first stack 11, a first hydrogen system 12, and a first cooling system 13. The first galvanic pile 11 is connected to the first air system 10, the first hydrogen system 12 and the first cooling system 13, respectively. The first cooling systems 13 are respectively connected with cooling water inlets and outlets of the first electric pile 11.
The second fuel cell system 2 includes a second air system 20, a second stack 21, a second hydrogen system 22, and a second cooling system 23. The second galvanic pile 21 is connected to the second air system 20, the second hydrogen system 22 and the second cooling system 23, respectively. The second cooling systems 23 are respectively connected with cooling water inlets and outlets of the second electric stacks 21.
Referring to fig. 2, another possible dual fuel cell system structure according to an embodiment of the present application is shown. In the fuel cell dual system as shown in fig. 2:
the first air system 10 includes: the first air flow meter 101, the first air compressor 102, the first air in-stack temperature and pressure sensor 103, the first air out-stack temperature and pressure sensor 104 and the first back pressure valve 105. The first air flow meter 101, the first air compressor 102 and the first air stack temperature and pressure sensor 103 are sequentially connected, and are connected with an air inlet of the first electric stack 11 through the first air stack temperature and pressure sensor 103. The first back pressure valve 105 and the first air outlet stack temperature and pressure sensor 104 are sequentially connected, and the first air outlet stack temperature and pressure sensor 104 is connected with the air outlet of the first electric stack 11. The airflow direction of the first air system 10 (i.e., the airflow direction of the air) is: the first air flow meter 101, the first air compressor 102, the first air in-stack temperature and pressure sensor 103, the first electric stack 11, the first air out-stack temperature and pressure sensor 104, and the first back pressure valve 105.
The first hydrogen system 12 includes: the first hydrogen gas temperature and pressure sensor 122, the first hydrogen gas temperature and pressure sensor 123, the first gas-liquid separator 124, the first hydrogen return pump 125 and the first hydrogen discharge valve 126. The first proportional valve 121 and the first hydrogen inlet stack temperature and pressure sensor 122 are sequentially connected, and are connected with the hydrogen inlet of the first electric pile 11 through the first hydrogen inlet stack temperature and pressure sensor 122. The first hydrogen discharge valve 126, the first gas-liquid separator 124 and the first hydrogen outlet stack temperature-pressure sensor 123 are sequentially connected, the first hydrogen outlet stack temperature-pressure sensor 123 is connected with the hydrogen outlet of the first electric stack 11, the first gas-liquid separator 124 is connected with the first hydrogen inlet stack temperature-pressure sensor 122 through the first hydrogen return pump 125, and specifically, the first hydrogen return pump 125 is respectively connected with the first hydrogen inlet stack temperature-pressure sensor 122 and the first proportional valve 121.
The gas flow direction of the first hydrogen system 12 (i.e., the gas flow direction of the hydrogen gas) is: the first proportional valve 121, the first hydrogen in-stack temperature and pressure sensor 122, the first electric stack 11, the first hydrogen out-stack temperature and pressure sensor 123, the first gas-liquid separator 124 and the first hydrogen return pump 125. When the first hydrogen discharge valve 126 is opened, the liquid water and hydrogen gas at the outlet of the first gas-liquid separator 124 are discharged from the first hydrogen discharge valve 126.
The second air system 20 includes: a second air flow meter 201, a second air compressor 202, a first three-way valve 206, a second air in-stack temperature and pressure sensor 203, a second air out-stack temperature and pressure sensor 204 and a second back pressure valve 205. The second air flow meter 201, the second air compressor 202, the first three-way valve 206, and the second air inlet stack temperature and pressure sensor 203 are sequentially connected, and are connected to the air inlet of the second electric stack 21 through the second air inlet stack temperature and pressure sensor 203. One end of the first three-way valve 206 is connected to the first back pressure valve 105 and the first air outlet stack temperature and pressure sensor 104, respectively. The second back pressure valve 205 and the second air outlet stack temperature and pressure sensor 204 are sequentially connected, and are connected to the air outlet of the second electric stack 21 through the second air outlet stack temperature and pressure sensor 204. The airflow direction of the second air system 20 is: a second air flow meter 201, a second air compressor 202, a first three-way valve 206, a second air in-stack temperature and pressure sensor 203, a second electric stack 21, a second air out-stack temperature and pressure sensor 204 and a second back pressure valve 205.
The second hydrogen system 22 includes: the second proportional valve 221, the second three-way valve 227, the second hydrogen in-stack temperature and pressure sensor 222, the second hydrogen out-stack temperature and pressure sensor 223, the second gas-liquid separator 224, the second hydrogen return pump 225 and the second hydrogen discharge valve 226. The second proportional valve 221, the second three-way valve 227 and the second hydrogen inlet stack temperature and pressure sensor 222 are sequentially connected, and are connected with the hydrogen inlet of the second electric stack 21 through the second hydrogen inlet stack temperature and pressure sensor 222. One end of the second three-way valve 227 is connected to the first gas-liquid separator 124 and the first hydrogen discharge valve 126, respectively. The second hydrogen discharge valve 226, the second gas-liquid separator 225 and the second hydrogen outlet stack temperature and pressure sensor 223 are sequentially connected, and are connected with the hydrogen outlet of the second electric pile 21 through the second hydrogen outlet stack temperature and pressure sensor 223. The second gas-liquid separator 225 is connected to the second hydrogen-in-stack temperature-pressure sensor 222 and the second proportional valve 221 through the second hydrogen return pump 225, respectively.
The flow direction of the second hydrogen system 22 is: the second proportional valve 221, the second three-way valve 227, the second hydrogen in-stack temperature and pressure sensor 222, the second electric stack 21, the second hydrogen out-stack temperature and pressure sensor 223, the second gas-liquid separator 224 and the second hydrogen return pump 225. When the second hydrogen discharge valve 226 is opened, the liquid water and hydrogen gas at the outlet of the second gas-liquid separator 224 are discharged from the second hydrogen discharge valve 226.
The first three-way valve 206 is disposed between the inlet of the first back pressure valve 105 and the outlet of the second air compressor 202. When the first three-way valve 206 is fully closed, air at the inlet of the first back pressure valve 105 cannot flow into the first three-way valve 206, and air at the outlet of the second air compressor 202 can flow into the first three-way valve 206 into the second stack 21. When the first three-way valve 206 is fully opened, a part or all of the air at the inlet of the first back pressure valve 105 may flow into the first three-way valve 206, and then flow into the second stack 21 through the first three-way valve 206.
A second three-way valve 227 is provided between the inlet of the first hydrogen discharge valve 126 and the outlet of the second proportional valve 221. When the second three-way valve 227 is fully closed, the gas flow (hydrogen gas) at the inlet of the first hydrogen discharge valve 126 cannot flow into the second three-way valve 227, and the gas flow at the outlet of the second proportional valve 221 can flow into the second three-way valve 227 and then into the second stack 21. When the second three-way valve 227 is fully opened, a part or all of the air flow at the inlet of the second exhaust valve 226 may flow into the second three-way valve 227, and then flow into the second stack 21 through the second three-way valve 227.
The controller 3 is mainly used for detecting related information of each component in the fuel cell dual system, such as information of air compressor rotation speed, back pressure valve opening, stack voltage, stack current, stack resistance and the like, and performing corresponding effective control on the components.
Referring to fig. 3, a schematic flow chart of a starting control method based on a dual fuel cell system according to an embodiment of the present application is shown in fig. 1 and 2. The method shown in fig. 3 is applied to the fuel cell dual system shown in fig. 1 and 2, and comprises the following implementation steps:
s301, receiving a battery starting instruction, wherein the battery starting instruction is used for instructing to start a target fuel cell system in the fuel cell dual system, and the target fuel cell system comprises a first fuel cell system and/or a second fuel cell system.
The battery start command described in the present application may be obtained by automatic detection of the system, or may be received from another device (e.g. a server), or may be generated by user trigger, which is not limited in the present application.
In an alternative embodiment, the present application may start the cooling system in the fuel cell dual system and perform pressure build-up on the air system and the hydrogen system in the fuel cell dual system simultaneously, before step S301. And after the pressure is established, purging an air path and a hydrogen path in the fuel cell dual system.
In specific implementation, the method can be divided into the following three stages when the fuel cell dual system is started. The first stage: the cooling systems (specifically, the first cooling system and the second cooling system) in the fuel cell dual system are started, and the pressure build-up of the air system and the hydrogen system is performed synchronously. And a second stage: purging the air path and the hydrogen path in the fuel cell dual system. And a third stage: after purging is completed, starting a target fuel cell system in the fuel cell dual system according to different whole vehicle power requirements, and loading current to idle current to complete the starting process of the whole fuel cell system.
The first stage: when the first cooling system 13 and the second cooling system 23 are started, the air system and the hydrogen system in the fuel cell dual system are started simultaneously. The first air compressor 102 is started 3, the first back pressure valve 105 is closed, the first three-way valve 206 is fully opened, the second air compressor 202 is not started, and the airflow direction of the whole air in the system is as follows: the first air flow meter 101, the first air compressor 102, the first air in-stack temperature and pressure sensor 103, the first electric stack 11, the first air out-stack temperature and pressure sensor 104, the first three-way valve 206, the second air in-stack temperature and pressure sensor 203, the second electric stack 21, the second air out-stack temperature and pressure sensor 204, and the second back pressure valve 205. At this time, the opening degree of the second back pressure valve 205 and the rotation speed of the first air compressor 102 may be adjusted, and when the pressure of the second air inlet stack temperature pressure sensor 203 reaches the preset first target pressure P1, the air pressure building process of the first air system 10 and the second air system 20 is completed.
At this time, the first proportional valve 121 is opened, the first hydrogen return pump 125 is started, the first hydrogen discharge valve 126 is closed, the second three-way valve 227 is fully opened, the second proportional valve 221 is closed, the second hydrogen return pump 225 is not started, and the flow direction of the whole hydrogen in the system is as follows: the first proportional valve 121, the first hydrogen-in-stack temperature-pressure sensor 122, the first electric stack 11, the first hydrogen-out-stack temperature-pressure sensor 123, the first gas-liquid separator 124, the second three-way valve 227, the second hydrogen-in-stack temperature-pressure sensor 222, the second electric stack 21, the second hydrogen-out-stack temperature-pressure sensor 223, the second gas-liquid separator 224, and the second hydrogen discharge valve 226. Wherein another portion of the gas stream at the outlet of the first gas-liquid separator 124 flows to the first hydrogen return pump 125. The present application adjusts the pressure of the second hydrogen gas entering the stack by adjusting the first proportional valve 121 and the second hydrogen discharge valve 226, and when the pressure value of the second hydrogen gas entering the stack temperature and pressure sensor 222 reaches the preset second target pressure P2, the pressure building process of the first hydrogen system 12 and the second hydrogen system 22 is completed.
And a second stage: the main purpose of purging the air and hydrogen paths is to bring out the water and impurities remaining inside the electric pile (the first electric pile 11 and the second electric pile 21) after the last shutdown of the electric pile, so as to ensure that the internal impedance of the electric pile is within a reasonable range. At this time, the rotation speed of the first air compressor 102 and the opening of the second back pressure valve 205 may be adjusted, the pressure value of the second air inlet stack temperature pressure sensor 203 is adjusted to the third target pressure P3, the flow value of the first air flow meter 101 is adjusted to reach the preset first flow F1, and the air pressure value P3 and the flow value F1 are kept for a preset first duration. Meanwhile, the opening of the first proportional valve 121 and the opening of the second hydrogen discharge valve 226 in the hydrogen path may be simultaneously adjusted, so that the pressure of the second hydrogen entering the stack temperature and pressure sensor 222 reaches the preset fourth target pressure P4, and the hydrogen pressure value P4 is kept for a preset second duration. When the entire stack impedance (specifically, the first stack 21 or the second stack 22) reaches the preset target impedance H1, the purging of the air path and the hydrogen path is completed.
And a third stage: the pile load pulling process can be divided into the following three cases according to different power requirements of the whole car. First case: only starting the first fuel cell system, and being applicable to the whole vehicle low-power request; second case: starting the first fuel cell system and then starting the second fuel cell system, wherein the method is suitable for the request of small power of the whole vehicle but the request of potential large power; third case: and simultaneously starting the first fuel cell system and the second fuel cell system, and being suitable for the large-power request of the whole vehicle. The target fuel cell system for which the whole vehicle power request is required to request starting may be indicated by the battery start instruction, in other words, the battery start instruction may be used to indicate that the target fuel cell system in the fuel cell dual system is currently required to start, and the target fuel cell system may be the first fuel cell system and/or the second fuel cell system.
S302, responding to the battery starting instruction, and adjusting target components in the fuel battery double systems so that the target fuel battery systems meet corresponding idle working conditions.
S303, loading idle current to a target pile in the target fuel cell system after the idle working condition is met, so that the starting of the target fuel cell system is realized.
Several embodiments relating to steps S302 and S303 are described below.
In the first case, the battery start instruction is used to request/instruct starting of the first fuel cell system. After the purging of the air path and the hydrogen path is completed, the first back pressure valve 105 and the first hydrogen discharge valve 126 may be opened, the first three-way valve 206 and the second three-way valve 227 may be closed, the second back pressure valve 205 and the second hydrogen discharge valve 226 may be closed, and the opening of the first back pressure valve 105 and the rotation speed of the first air compressor 102 may be adjusted, so that the air pressure and the air flow of the first fuel cell system may reach the target air pressure and the target air flow under the idle working condition, i.e. the target air pressure and the air flow under the idle working condition of the first fuel cell system may be realized. Meanwhile, the opening of the first proportional valve 121, the rotation speed of the first hydrogen return pump 125, and the opening of the first hydrogen discharge valve 126 in the dual fuel cell system are adjusted, so that the hydrogen pressure and the hydrogen flow of the first fuel cell system reach the target hydrogen pressure and the target hydrogen flow under the idle working condition, that is, the target hydrogen pressure and the hydrogen flow under the idle working condition of the first fuel cell system are realized.
Further, the present application may load the first stack 11 in the first fuel cell system with an idle current, thereby completing the start-up of the first fuel cell system.
In the second case, the battery start instruction is used to request/instruct to start the first fuel cell system first and to start the second fuel cell system second. After the purging of the air path and the hydrogen path is completed, the first hydrogen discharge valve 126 may be opened, the second three-way valve 227 may be closed, and the opening of the second back pressure valve 205 and the rotation speed of the first air compressor 102 may be adjusted, so that the air pressure and the air flow of the first fuel cell system may reach the target air pressure and the target air flow under the idle working condition, i.e. the target air pressure and the target air flow under the idle working condition of the first fuel cell system may be realized. Meanwhile, the opening of the first proportional valve 121, the rotation speed of the first hydrogen return pump 125 and the opening of the first hydrogen discharge valve 126 may be adjusted, so that the hydrogen pressure and the hydrogen flow of the first fuel cell system reach the target hydrogen pressure and the target hydrogen flow under the idle working condition, that is, the target hydrogen pressure and the hydrogen flow under the idle working condition of the first fuel cell system are realized. And simultaneously, the first electric pile 11 of the first fuel cell system is loaded with current to idle current, so that the starting of the first fuel cell system is completed. Further, the opening of the second proportional valve 221, the rotation speed of the second hydrogen return pump 225, and the opening of the second hydrogen discharge valve 226 can be adjusted, so that the hydrogen pressure and the hydrogen flow of the second fuel cell system reach the target hydrogen pressure and the target hydrogen flow under the idle working condition, that is, the target hydrogen pressure and the hydrogen flow under the idle working condition of the second fuel cell system are realized, and the loading current is applied to the second fuel cell system to the idle current, thereby realizing the completion of the starting of the second fuel cell system.
In a third case, the battery start instruction is for requesting/instructing to start the first fuel cell system and the second fuel cell system simultaneously. After the purging of the air path and the hydrogen path is completed, the first back pressure valve 105 and the first hydrogen discharge valve 126 may be opened, the first three-way valve 206 and the second three-way valve 227 may be closed, and the opening of the first back pressure valve 105 and the rotation speed of the first air compressor 102 may be adjusted, so that the air pressure and the air flow of the first fuel cell system may reach the target air pressure and the target air flow under the idle working condition, i.e. the target air pressure and the target air flow under the idle working condition of the first fuel cell system may be realized. Meanwhile, the opening degree of the second back pressure valve 205 and the rotating speed of the second air compressor 202 are adjusted, so that the air pressure and the air flow of the second fuel cell system reach the target air pressure and the target air flow under the idle working condition, namely, the target air pressure and the target air flow under the idle working condition of the second fuel cell system are realized. The opening of the first proportional valve 121, the rotation speed of the first hydrogen return pump 125 and the opening of the first hydrogen discharge valve 126 can be synchronously adjusted, so that the hydrogen pressure and the hydrogen flow of the first fuel cell system reach the target hydrogen pressure and the target hydrogen flow under the idle working condition, i.e. the target hydrogen pressure and the hydrogen flow under the idle working condition of the first fuel cell system are realized. Meanwhile, the opening of the second proportional valve 221, the rotating speed of the second hydrogen return pump 225 and the opening of the second hydrogen discharge valve 226 can be adjusted, so that the hydrogen pressure and the hydrogen flow of the second fuel cell system reach the target hydrogen pressure and the target hydrogen flow under the idle working condition, i.e. the target hydrogen pressure and the hydrogen flow under the idle working condition of the second fuel cell system are realized. Further, the present application can apply the loading current to the idle current to the first and second stacks 11 and 21 at the same time, thereby achieving the completion of the start-up of the first and second fuel cell systems at the same time.
It can be seen that in the purging process of the fuel cell dual system, the mode of starting one air compressor is adopted to purge the air systems of the two fuel cells, and compared with the traditional fuel cell dual system which needs to start two air compressors to purge, the invention reduces the energy consumption of air purging. And the mode of starting one proportional valve and a hydrogen discharge valve is adopted to purge the hydrogen systems of the two fuel cells, compared with the traditional dual fuel cell system which needs to start two groups of proportional valves and hydrogen discharge valves to purge, the hydrogen purging device reduces the hydrogen consumption in the hydrogen path purging process.
In addition, the starting process of the fuel cell dual system can be divided into three starting modes according to different whole vehicle power requirements: the first is to start only the first fuel cell system, which is suitable for the whole vehicle small power request. The second is to start the first fuel cell system first and then start the second fuel cell system, which is suitable for the whole vehicle low power request, but the potential high power request. The third is to start the first fuel cell system and the second fuel cell system simultaneously, which is suitable for the whole vehicle high power request. Compared with the traditional fuel cell dual-system for simultaneously starting two fuel cell systems, the invention reduces idle power consumption. In the second starting mode, the air quantity consumed by the electric piles is small and the air quantity provided by the air compressor is excessive due to the idle working condition, and the air pressure and the air flow are regulated by one air compressor and the back pressure valve by adopting the two electric piles, so that the power consumption of the air compressor is reduced.
By implementing the embodiment of the application, the application receives a battery starting instruction, wherein the battery starting instruction is used for instructing to start a target fuel cell system in the fuel cell dual system, and the target fuel cell system comprises a first fuel cell system and/or a second fuel cell system; responding to the battery starting instruction, and adjusting a target component in the fuel battery double system so as to enable the target fuel battery system to meet corresponding idle speed working condition; and loading idle current to a target pile in the target fuel cell system after the idle working condition is met, so that the starting of the target fuel cell system is realized. In the above scheme, the method and the device respond to the battery starting instruction, adjust and process the target component in the fuel cell dual system so as to meet the corresponding idle working condition, load idle current on the target stack in the target fuel cell system, and thereby realize the starting of the target fuel cell system, so that the rapid and convenient starting of the target fuel cell system can be realized in a targeted and purposeful manner, the power consumption of the starting of the fuel cell system can be saved, and the technical problem of larger power consumption of the fuel cell dual system in the prior art is solved.
Based on the same inventive concept, another embodiment of the present application provides a device and a terminal device corresponding to the start control method based on the fuel cell dual system in the embodiment of the present application.
Referring to fig. 4, a schematic structural diagram of a dual fuel cell system-based start control device according to an embodiment of the present application is shown. The apparatus 40 shown in fig. 4 is applied to the fuel cell dual system as described above, and the apparatus 40 includes: a receiving module 401, a processing module 402 and a loading module 403, wherein:
the receiving module 401 is configured to receive a battery start instruction, where the battery start instruction is used to instruct to start a target fuel cell system in the dual fuel cell system, and the target fuel cell system includes a first fuel cell system and/or a second fuel cell system;
the processing module 402 is configured to respond to the battery start command, and perform adjustment processing on a target component in the dual fuel cell system, so that the target fuel cell system meets a corresponding idle working condition;
the loading module 403 is configured to load an idle current to a target stack in the target fuel cell system after the idle working condition is satisfied, so as to implement starting of the target fuel cell system.
Optionally, the target fuel cell system is the first fuel cell system, and the processing module 402 is specifically configured to:
opening a first back pressure valve and a first hydrogen discharge valve in the fuel cell dual system, closing a first three-way valve, a second back pressure valve and a second hydrogen discharge valve in the fuel cell dual system, and adjusting the opening of the first back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under an idle working condition;
and adjusting the opening of a first proportional valve, the rotating speed of a first hydrogen return pump and the opening of the first hydrogen discharge valve in the fuel cell dual system so that the hydrogen pressure and the hydrogen flow of the first fuel cell system reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
Optionally, the battery start instruction is configured to instruct to start the first fuel cell system first and start the second fuel cell system second, and the processing module 402 is specifically configured to:
opening a first hydrogen discharge valve and a second three-way valve in the fuel cell dual system, and adjusting the opening of a second back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under an idle working condition;
Adjusting the opening of the first proportional valve, the rotating speed of the first hydrogen return pump and the opening of the first hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the first fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition;
and adjusting the opening of the second proportional valve, the rotating speed of the second hydrogen return pump and the opening of the second hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the second fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
Optionally, the battery start instruction is configured to instruct to start the first fuel cell system and the second fuel cell system simultaneously, and the processing module 402 is specifically configured to:
opening a first back pressure valve and a first hydrogen discharge valve in the fuel cell dual system, closing a first three-way valve and a second three-way valve, and adjusting the opening of the first back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under the idle working condition;
adjusting the opening degree of the second back pressure valve and the rotating speed of the second air compressor, so that the air pressure and the air flow of the second fuel cell system reach the target air pressure and the target air flow under the idle working condition;
Adjusting the opening of a first proportional valve, the rotating speed of a first hydrogen return pump and the opening of a first hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the first fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under an idle working condition;
and adjusting the opening of the second proportional valve, the rotating speed of the second hydrogen return pump and the opening of the second hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the second fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
Optionally, before the responding to the battery start command, the processing module 402 is further configured to:
starting a cooling system in the fuel cell dual system, and synchronously establishing pressure of an air system and a hydrogen system in the fuel cell dual system;
and after the pressure is established, purging an air path and a hydrogen path in the fuel cell dual system.
Please refer to fig. 5, which is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device 50 as shown in fig. 5 includes: at least one processor 501, communication interface 502, user interface 503, and memory 504, the processor 501, communication interface 502, user interface 503, and memory 504 may be connected via a bus or otherwise, as exemplified by the embodiments of the present invention being connected via bus 505. Wherein,
The processor 501 may be a general purpose processor such as a central processing unit (Central Processing Unit, CPU).
The communication interface 502 may be a wired interface (e.g., an ethernet interface) or a wireless interface (e.g., a cellular network interface or using a wireless local area network interface) for communicating with other terminals or websites. In the embodiment of the present invention, the communication interface 502 is specifically configured to obtain a battery start command.
The user interface 503 may specifically be a touch panel, including a touch screen and a touch screen, for detecting an operation instruction on the touch panel, and the user interface 503 may also be a physical key or a mouse. The user interface 503 may also be a display screen for outputting, displaying images or data.
The Memory 504 may include Volatile Memory (Volatile Memory), such as random access Memory (Random Access Memory, RAM); the Memory may also include a Non-Volatile Memory (Non-Volatile Memory), such as a Read-Only Memory (ROM), a Flash Memory (Flash Memory), a Hard Disk (HDD), or a Solid State Drive (SSD); memory 504 may also include a combination of the types of memory described above. The memory 504 is used for storing a set of program codes, and the processor 501 is used for calling the program codes stored in the memory 504 to perform the following operations:
Receiving a battery starting instruction, wherein the battery starting instruction is used for instructing to start a target fuel cell system in the fuel cell dual system, and the target fuel cell system comprises a first fuel cell system and/or a second fuel cell system;
responding to the battery starting instruction, and adjusting a target component in the fuel battery double system so as to enable the target fuel battery system to meet corresponding idle speed working condition;
and loading idle current to a target pile in the target fuel cell system after the idle working condition is met, so that the starting of the target fuel cell system is realized.
Optionally, the target fuel cell system is the first fuel cell system, and the adjusting the target component in the fuel cell dual system to make the target fuel cell system meet the corresponding idle working condition includes:
opening a first back pressure valve and a first hydrogen discharge valve in the fuel cell dual system, closing a first three-way valve, a second back pressure valve and a second hydrogen discharge valve in the fuel cell dual system, and adjusting the opening of the first back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under an idle working condition;
And adjusting the opening of a first proportional valve, the rotating speed of a first hydrogen return pump and the opening of the first hydrogen discharge valve in the fuel cell dual system so that the hydrogen pressure and the hydrogen flow of the first fuel cell system reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
Optionally, the battery start instruction is configured to instruct to start the first fuel cell system first and start the second fuel cell system second, and the adjusting the target component in the fuel cell dual system so that the target fuel cell system meets the corresponding idle working condition includes:
opening a first hydrogen discharge valve and a second three-way valve in the fuel cell dual system, and adjusting the opening of a second back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under an idle working condition;
adjusting the opening of the first proportional valve, the rotating speed of the first hydrogen return pump and the opening of the first hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the first fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition;
And adjusting the opening of the second proportional valve, the rotating speed of the second hydrogen return pump and the opening of the second hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the second fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
Optionally, the battery start instruction is configured to instruct to start the first fuel cell system and the second fuel cell system simultaneously, and the adjusting the target component in the fuel cell dual system so that the target fuel cell system meets the corresponding idle working condition includes:
opening a first back pressure valve and a first hydrogen discharge valve in the fuel cell dual system, closing a first three-way valve and a second three-way valve, and adjusting the opening of the first back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under the idle working condition;
adjusting the opening degree of the second back pressure valve and the rotating speed of the second air compressor, so that the air pressure and the air flow of the second fuel cell system reach the target air pressure and the target air flow under the idle working condition;
adjusting the opening of a first proportional valve, the rotating speed of a first hydrogen return pump and the opening of a first hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the first fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under an idle working condition;
And adjusting the opening of the second proportional valve, the rotating speed of the second hydrogen return pump and the opening of the second hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the second fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
Optionally, before the responding to the battery start instruction, the processor 501 is further configured to:
starting a cooling system in the fuel cell dual system, and synchronously establishing pressure of an air system and a hydrogen system in the fuel cell dual system;
and after the pressure is established, purging an air path and a hydrogen path in the fuel cell dual system.
Since the terminal device described in this embodiment is a terminal device used to implement the method in this embodiment, based on the method described in this embodiment, those skilled in the art can understand the specific implementation of the terminal device in this embodiment and various modifications thereof, so how this terminal device implements the method in this embodiment will not be described in detail herein. As long as those skilled in the art use terminal devices for implementing the methods in the embodiments of the present application, all belong to the scope of protection intended in the present application.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages: the method comprises the steps of receiving a battery starting instruction, wherein the battery starting instruction is used for instructing to start a target fuel cell system in the fuel cell dual system, and the target fuel cell system comprises a first fuel cell system and/or a second fuel cell system; responding to the battery starting instruction, and adjusting a target component in the fuel battery double system so as to enable the target fuel battery system to meet corresponding idle speed working condition; and loading idle current to a target pile in the target fuel cell system after the idle working condition is met, so that the starting of the target fuel cell system is realized. In the above scheme, the method and the device respond to the battery starting instruction, adjust and process the target component in the fuel cell dual system so as to meet the corresponding idle working condition, load idle current on the target stack in the target fuel cell system, and thereby realize the starting of the target fuel cell system, so that the rapid and convenient starting of the target fuel cell system can be realized in a targeted and purposeful manner, the power consumption of the starting of the fuel cell system can be saved, and the technical problem of larger power consumption of the fuel cell dual system in the prior art is solved.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. A dual fuel cell system, the system comprising: a controller, a first fuel cell system and a second fuel cell system respectively connected with the controller, wherein the controller is used for controlling the starting of the first fuel cell system and/or the second fuel cell system;
wherein: the first fuel cell system comprises a first electric pile, a first air system, a first hydrogen system and a first cooling system which are respectively connected with the first electric pile, and the second fuel cell system comprises a second electric pile, a second air system, a second hydrogen system and a second cooling system which are respectively connected with the second electric pile;
the battery start instruction is used for instructing to start the first fuel battery system and restart the second fuel battery system;
the fuel cell dual system responds to the battery starting instruction and adjusts the target component in the fuel cell dual system so that the fuel cell dual system meets the corresponding idle working condition, and the method comprises the following steps: opening a first hydrogen discharge valve of the first hydrogen system in the fuel cell dual system, closing a second three-way valve of the second hydrogen system, adjusting the opening of a second back pressure valve of the second air system and the rotating speed of a first air compressor of the first air system to enable the air pressure and the air flow of the first fuel cell system to reach target air pressure and target air flow under idle working conditions, wherein the first hydrogen discharge valve, a first gas-liquid separator and a first hydrogen outlet stack temperature pressure sensor of the first hydrogen system are sequentially connected with a hydrogen outlet of the first electric stack, a second proportional valve, a second three-way valve and a second hydrogen inlet stack temperature pressure sensor of the second hydrogen system are sequentially connected with a hydrogen inlet of the second electric stack, one end of the second three-way valve is respectively connected with the first hydrogen discharge valve of the first hydrogen system, the second back pressure valve and the second air outlet stack temperature sensor of the second air system are sequentially connected with the first air inlet stack temperature sensor of the first electric stack, and the first air inlet stack temperature sensor of the first air flow meter of the second air system; the opening of a first proportional valve of the first hydrogen system, the rotating speed of a first hydrogen return pump and the opening of the first hydrogen discharge valve are adjusted, so that the hydrogen pressure and the hydrogen flow of the first fuel cell system reach the target hydrogen pressure and the target hydrogen flow under an idle working condition, wherein the first proportional valve and a first hydrogen stack temperature and pressure sensor of the first hydrogen system are sequentially connected with a hydrogen inlet of the first electric stack, and the first gas-liquid separator is connected with the first hydrogen stack temperature and pressure sensor through the first hydrogen return pump; and adjusting the opening of a second proportional valve, the rotating speed of a second hydrogen return pump and the opening of a second hydrogen discharge valve of the second hydrogen system to enable the hydrogen pressure and the hydrogen flow of the second fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under an idle working condition, wherein the second proportional valve, the second three-way valve and the second hydrogen stack temperature and pressure sensor are sequentially connected with a hydrogen inlet of a second electric stack, a second gas-liquid separator of the second hydrogen system is connected with the second hydrogen stack temperature and pressure sensor through the second hydrogen return pump, and the second hydrogen discharge valve, the second gas-liquid separator and the second hydrogen stack temperature and pressure sensor of the second hydrogen system are sequentially connected with a hydrogen outlet of the second electric stack.
2. The fuel cell dual system of claim 1, wherein the first air system comprises: the system comprises a first air flow meter, a first air compressor, a first air in-stack temperature and pressure sensor, a first air out-stack temperature and pressure sensor and a first back pressure valve; the first air flow meter, the first air compressor and the first air stack temperature and pressure sensor are sequentially connected with an air inlet of the first electric stack, and the first back pressure valve and the first air stack temperature and pressure sensor are sequentially connected with an air outlet of the first electric stack.
3. The fuel cell dual system according to claim 1, wherein the first hydrogen system comprises: the hydrogen gas temperature and pressure sensor comprises a first proportional valve, a first hydrogen gas inlet stack temperature and pressure sensor, a first hydrogen gas outlet stack temperature and pressure sensor, a first gas-liquid separator, a first hydrogen return pump and a first hydrogen discharge valve; the first proportional valve and the first hydrogen gas temperature and pressure sensor are connected with the hydrogen inlet of the first electric pile in sequence, the first hydrogen discharge valve, the first gas-liquid separator and the first hydrogen gas outlet temperature and pressure sensor are connected with the hydrogen outlet of the first electric pile in sequence, and the first gas-liquid separator is connected with the first hydrogen gas temperature and pressure sensor through the first hydrogen return pump.
4. The fuel cell dual system according to claim 2, wherein the second air system comprises: the system comprises a second air flow meter, a second air compressor, a first three-way valve, a second air in-stack temperature and pressure sensor, a second air out-stack temperature and pressure sensor and a second back pressure valve; the second air flow meter, the second air compressor, the first three-way valve and the second air stack temperature and pressure sensor are sequentially connected with an air inlet of the second electric stack, one end of the first three-way valve is respectively connected with the first back pressure valve and the first air stack temperature and pressure sensor, and the second back pressure valve and the second air stack temperature and pressure sensor are sequentially connected with an air outlet of the second electric stack.
5. The fuel cell dual system according to claim 3, wherein the second hydrogen system comprises: the second hydrogen gas temperature and pressure sensor, the second hydrogen gas outlet temperature and pressure sensor, the second gas-liquid separator, the second hydrogen return pump and the second hydrogen discharge valve; the second proportional valve, the second three-way valve and the second hydrogen gas temperature and pressure sensor are sequentially connected with a hydrogen inlet of the second electric pile, one end of the second three-way valve is respectively connected with the first gas-liquid separator and the first hydrogen discharge valve, the second gas-liquid separator and the second hydrogen gas temperature and pressure sensor are sequentially connected with a hydrogen outlet of the second electric pile, and the second gas-liquid separator is connected with the second hydrogen gas temperature and pressure sensor through the second hydrogen return pump.
6. A starting control method based on a fuel cell dual system, characterized by being applied to the fuel cell dual system as claimed in any one of claims 1 to 5, the method comprising:
receiving a battery starting instruction, wherein the battery starting instruction is used for instructing to start a target fuel cell system in the fuel cell dual system, and the target fuel cell system comprises a first fuel cell system and/or a second fuel cell system;
responding to the battery starting instruction, and adjusting a target component in the fuel battery double system so as to enable the target fuel battery system to meet corresponding idle speed working condition;
and loading idle current to a target pile in the target fuel cell system after the idle working condition is met, so that the starting of the target fuel cell system is realized.
7. The method of claim 6, wherein the target fuel cell system is the first fuel cell system, and wherein the adjusting the target component in the fuel cell dual system to meet the corresponding idle operating condition comprises:
opening a first back pressure valve and a first hydrogen discharge valve in the fuel cell dual system, closing a first three-way valve, a second back pressure valve and a second hydrogen discharge valve in the fuel cell dual system, and adjusting the opening of the first back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under an idle working condition;
And adjusting the opening of a first proportional valve, the rotating speed of a first hydrogen return pump and the opening of the first hydrogen discharge valve in the fuel cell dual system so that the hydrogen pressure and the hydrogen flow of the first fuel cell system reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
8. The method of claim 6, wherein the battery start command instructs to start the first fuel cell system first and restart the second fuel cell system, and wherein the adjusting the target component in the fuel cell dual system to satisfy the corresponding idle operating condition comprises:
opening a first hydrogen discharge valve and a second three-way valve in the fuel cell dual system, and adjusting the opening of a second back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under an idle working condition;
adjusting the opening of the first proportional valve, the rotating speed of the first hydrogen return pump and the opening of the first hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the first fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition;
And adjusting the opening of the second proportional valve, the rotating speed of the second hydrogen return pump and the opening of the second hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the second fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
9. The method of claim 6, wherein the battery start command is configured to instruct the first fuel cell system and the second fuel cell system to be started simultaneously, and wherein the adjusting the target component in the fuel cell dual system to satisfy the corresponding idle operating condition comprises:
opening a first back pressure valve and a first hydrogen discharge valve in the fuel cell dual system, closing a first three-way valve and a second three-way valve, and adjusting the opening of the first back pressure valve and the rotating speed of a first air compressor to enable the air pressure and the air flow of the first fuel cell system to reach the target air pressure and the target air flow under the idle working condition;
adjusting the opening degree of the second back pressure valve and the rotating speed of the second air compressor, so that the air pressure and the air flow of the second fuel cell system reach the target air pressure and the target air flow under the idle working condition;
Adjusting the opening of a first proportional valve, the rotating speed of a first hydrogen return pump and the opening of a first hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the first fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under an idle working condition;
and adjusting the opening of the second proportional valve, the rotating speed of the second hydrogen return pump and the opening of the second hydrogen discharge valve to enable the hydrogen pressure and the hydrogen flow of the second fuel cell system to reach the target hydrogen pressure and the target hydrogen flow under the idle working condition.
10. The method of claim 6, wherein prior to said responding to said battery start command, said method further comprises:
starting a cooling system in the fuel cell dual system, and synchronously establishing pressure of an air system and a hydrogen system in the fuel cell dual system;
and after the pressure is established, purging an air path and a hydrogen path in the fuel cell dual system.
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