CN112201806A - Control system, method and device for fuel cell, storage medium and processor - Google Patents

Control system, method and device for fuel cell, storage medium and processor Download PDF

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Publication number
CN112201806A
CN112201806A CN202011086914.6A CN202011086914A CN112201806A CN 112201806 A CN112201806 A CN 112201806A CN 202011086914 A CN202011086914 A CN 202011086914A CN 112201806 A CN112201806 A CN 112201806A
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CN
China
Prior art keywords
fuel cell
air
stack
temperature
purged
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Pending
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CN202011086914.6A
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Chinese (zh)
Inventor
杨华
薛晓婷
赖普旭
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN202011086914.6A priority Critical patent/CN112201806A/en
Publication of CN112201806A publication Critical patent/CN112201806A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04052Storage of heat in the fuel cell system
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126Humidifying
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126Humidifying
    • H01M8/04141Humidifying by water containing exhaust gases
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298Processes for controlling fuel cells or fuel cell systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

Abstract

The invention discloses a control system, a control method, a control device, a storage medium and a processor of a fuel cell. The control system comprises an air compressor, a pressure sensor and a controller, wherein the air compressor is used for compressing air to generate air to be blown; the first input end of the membrane humidifier is connected with the air compressor and used for receiving air to be purged, the second input end of the membrane humidifier is connected with a stack outlet on the cathode side of the fuel cell and used for receiving water vapor discharged by the stack outlet of the fuel cell in the process of electric stack reaction, and the output end of the membrane humidifier is connected to a stack inlet on the cathode side of the fuel cell; the membrane humidifier humidifies air to be purged by using water vapor, then purges the humidified air to be purged to the cathode side of the fuel cell, and humidifies an electric pile of the fuel cell. The invention solves the technical problem of complex system structure caused by the additional devices such as a steam vibrator and the like required for humidifying the hydrogen fuel cell stack in the prior art, realizes the self utilization of water vapor and heat in the system, and reduces the energy consumption of the system.

Description

Control system, method and device for fuel cell, storage medium and processor
Technical Field
The invention relates to the technical field of fuel cells, in particular to a control system, a control method, a control device, a storage medium and a processor of a fuel cell.
Background
The current energy system depends heavily on fossil energy (petroleum, coal, natural gas), but the stored energy of petroleum may be exhausted in the next decades, and the coal energy is difficult to support for a long time, so the hydrogen fuel cell is widely used as a new generation of renewable energy with high efficiency and cleanness. In the process of the hydrogen fuel cell operation, the proton exchange membrane hydrogen fuel cell has higher requirements for reflecting temperature, pressure, humidity and the like, and the parameters directly influence the efficiency and stability of the electrical property output by the fuel cell.
The reaction gas on the anode side of the fuel cell is hydrogen, and the hydrogen is flammable and explosive gas, so the hydrogen path needs to be a sealed pipeline with good sealing performance, and the flow and the temperature are not controlled after pressure reduction. Therefore, control of the pressure, temperature, and humidity of the cathode-side air path is particularly important.
Since the stack start-up has the optimum reflection temperature, it is necessary to warm the stack before the stack start-up to raise the temperature in the stack by the reflection temperature in advance. Current schemes for temperature and humidity control of fuel cell stacks include: gas humidification is carried out through an external steam vibrator, and preheating coolant is adopted for warming. But the steam vibrator control is complicated and increases the system power consumption. The same principle applies to the coolant preheating reactor, and extra heating resistance is needed, so that redundant power consumption is realized.
Aiming at the problem that in the prior art, an additional steam vibrator and other devices are needed to be added to the warming scheme of the hydrogen fuel cell, so that the system structure is complex, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a control system, a control method, a control device, a storage medium and a processor of a fuel cell, and at least solves the technical problem that in the prior art, additional devices such as a steam vibrator are required to be added for humidifying a hydrogen fuel cell stack, so that the system structure is complex.
According to an aspect of an embodiment of the present invention, there is provided a control system of a fuel cell including: the air compressor is used for compressing air to generate air to be blown; the first input end of the membrane humidifier is connected with the air compressor and used for receiving air to be purged, the second input end of the membrane humidifier is connected with a stack outlet on the cathode side of the fuel cell and used for receiving water vapor discharged by the stack outlet of the fuel cell in the process of electric stack reaction, and the output end of the membrane humidifier is connected to a stack inlet on the cathode side of the fuel cell; the membrane humidifier humidifies air to be purged by using water vapor, then purges the humidified air to be purged to the cathode side of the fuel cell, and humidifies an electric pile of the fuel cell.
Furthermore, the control system also comprises a three-way valve, wherein the first end of the three-way valve is connected with a pile outlet on the cathode side of the fuel cell, the second end of the three-way valve is connected with the second input end of the membrane humidifier, and the third end of the three-way valve is connected with an external environment; the humidity sensor is arranged on a fuel cell stack and used for detecting the humidity of the stack; under the condition that the humidity of the galvanic pile is lower than the preset humidity, the third end of the three-way valve is closed, and the first end and the second end of the three-way valve are opened; and under the condition that the humidity of the galvanic pile is greater than or equal to the preset humidity, the second end of the three-way valve is closed, and the first end and the third end of the three-way valve are opened.
Furthermore, the system also comprises a first regulating valve which is arranged between the first end of the three-way valve and the outlet of the cathode side of the fuel cell and is used for regulating the flow of the water vapor entering the membrane humidifier.
Furthermore, the system also comprises a flow sensor which is arranged at the input end of the air compressor and used for detecting the air intake flow of the air compressor; the pressure sensor is arranged at the output end of the air compressor and used for detecting the pressure of the air to be blown and swept output by the air compressor; the air compressor adjusts the rotating speed to enable the air inflow to be within a preset flow range and enable the pressure of air to be blown to be within a preset pressure range.
Further, the system also comprises an intercooler, wherein the intercooler is arranged between the air compressor and the membrane humidifier; the first temperature sensor is arranged at the output end of the air compressor and used for detecting a first temperature of air to be blown before the air enters the intercooler; the second temperature sensor is arranged at the output end of the intercooler and used for detecting a second temperature of the air to be blown and swept after being cooled by the intercooler; and the intercooler adjusts the rotating speed according to the first temperature and the second temperature so as to enable the second temperature to reach a target temperature for purging the cathode side of the fuel cell.
Furthermore, the system also comprises a third temperature sensor, wherein the third temperature sensor is arranged at a stack inlet of the cathode side of the fuel cell and is used for detecting the stack inlet temperature of the cathode side of the fuel cell; the fourth temperature sensor is arranged at a stack outlet of the cathode side of the fuel cell and is used for detecting the stack outlet temperature of the cathode side of the fuel cell; when the difference between the stack inlet temperature and the stack outlet temperature is smaller than a preset value, a gas path on the anode side of the fuel cell is opened, and the electric stack of the fuel cell is started to react.
According to another aspect of the embodiments of the present invention, there is also provided a control method of a fuel cell, including: collecting water vapor generated by a fuel cell stack during a reaction process after the fuel cell is started; humidifying the air to be purged by using water vapor; and blowing the humidified air to be purged to the cathode side of the fuel cell so as to humidify the stack of the fuel cell.
Optionally, humidifying the air to be purged with water vapor, including: detecting the humidity of the galvanic pile; humidifying air to be purged by using water vapor under the condition that the humidity of the galvanic pile is lower than the preset humidity; and under the condition that the humidity of the galvanic pile is greater than or equal to the preset humidity, stopping humidifying the air to be swept by using the water vapor.
Optionally, before the stack reaction of the fuel cell, the method further comprises: detecting the air inlet flow of an air compressor and the pressure of air to be blown and swept output by the air compressor, wherein the air compressor is used for compressing air to generate air to be blown and swept; and adjusting the rotating speed of the air compressor to enable the air inflow to be in a preset flow range and the pressure of the air to be blown to be in a preset pressure range.
Optionally, before the stack reaction of the fuel cell, the method further comprises: detecting a first temperature of air to be purged before the air enters an intercooler; detecting a second temperature of the air to be blown and cleaned after being cooled by the intercooler; and adjusting the rotation speed of the intercooler according to the first temperature and the second temperature so that the second temperature reaches the target temperature for purging the cathode side of the fuel cell.
Optionally, before the stack reaction of the fuel cell, the method further comprises: detecting the stack inlet temperature of the cathode side of the fuel cell and the stack outlet temperature of the cathode side of the fuel cell; and when the difference between the stack inlet temperature and the stack outlet temperature is smaller than a preset value, starting a gas path at the anode side of the fuel cell, and starting the electric stack of the fuel cell to react.
According to another aspect of the embodiments of the present invention, there is also provided a control apparatus of a fuel cell, including: the collecting module is used for collecting water vapor generated by a fuel cell stack in a reaction process after the fuel cell is started; the humidifying module is used for humidifying air to be swept by using water vapor; and the purging module is used for purging the humidified air to be purged to the cathode side of the fuel cell so as to humidify the electric pile of the fuel cell.
According to another aspect of the embodiments of the present invention, there is also provided a storage medium including a stored program, wherein the apparatus on which the storage medium is controlled when the program is executed performs the above-described control method for a fuel cell.
According to another aspect of the embodiments of the present invention, there is also provided a processor for running a program, wherein the program is run to execute the control method of the fuel cell described above.
In the embodiment of the invention, the self-humidification and self-heating in the system are realized by recycling the water vapor generated in the reaction process of the fuel cell stack and utilizing the high temperature of the compressed air of the air compressor, so that the technical problem of complex system structure caused by the fact that additional devices such as a steam vibrator are required to be added for humidifying the hydrogen cell stack in the prior art is solved, no additional power consumption is caused, and the energy consumption of the system is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic diagram of a control system of a fuel cell according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an alternative fuel cell control system according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of a fuel cell according to an embodiment of the invention;
FIG. 4 is a flow chart of an alternative warm-stack control method for a fuel cell in accordance with an embodiment of the present invention;
fig. 5 is a schematic diagram of a control apparatus of a fuel cell according to an embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
Fig. 1 is a schematic diagram of a control system of a fuel cell according to an embodiment of the present invention, and as shown in fig. 1, the control system of a fuel cell includes: the air compressor 11 is used for compressing air to generate air to be blown; a first input end of the membrane humidifier 12 is connected with the air compressor and used for receiving air to be purged, a second input end of the membrane humidifier is connected with a stack outlet on the cathode side of the fuel cell 13 and used for receiving water vapor discharged by the stack outlet of the fuel cell in the process of the electric stack reaction, and an output end of the membrane humidifier is connected to a stack inlet on the cathode side of the fuel cell; the membrane humidifier humidifies air to be purged by using water vapor, then purges the humidified air to be purged to the cathode side of the fuel cell, and humidifies an electric pile of the fuel cell.
Specifically, the air compressor 11, the membrane humidifier 12 and the fuel cell 13 stack are disposed in the same air pipeline, the air pipeline is used for carrying the air to be purged and forming a loop, and the arrow connecting line in fig. 1 is an illustration of the air pipeline. According to the air pipeline in the control system, after the air to be purged is generated by the air compressor, the air is conveyed to the membrane humidifier along the air pipeline. After the fuel cell works normally, the fuel cell 13 generates water vapor in the reaction, and because the air pipeline is connected with the water vapor exhaust pipeline and the humidifying air pipeline of the membrane humidifier, the dry gas can be humidified by the water vapor generated after the electric pile reaction through the membrane humidifier without adding a water vapor vibration device. After being humidified, the air to be purged is conveyed to a stack inlet on the cathode side of the fuel cell, the cathode side of the fuel cell is purged, and then the air is discharged from a stack outlet of the fuel cell and conveyed back to a second input end of the membrane humidifier along an air pipeline (the air pipeline from the stack outlet of the fuel cell to the second input end of the membrane humidifier is hereinafter referred to as a water vapor feedback pipeline), so that the water vapor discharged from the fuel cell stack of the fuel cell is recycled in a loop formed by the air pipeline.
According to the control system of the fuel cell provided by the embodiment, the technical problem that the system structure is complex due to the fact that extra steam vibrators and other devices are needed to be added for humidifying the fuel cell stack in the prior art is solved by recycling the steam generated by the fuel cell stack in the reaction process, so that the fuel cell system can realize the humidification and the stack warming of the hydrogen cell stack by using the additional heat energy and steam generated in the operation process, extra power consumption is avoided, and the system energy consumption is reduced.
The control system is further described below with reference to an embodiment of the control system for a fuel cell shown in fig. 2, in which the connecting lines between the components in fig. 2 represent interconnected air lines, and the direction of the arrows represents the direction of gas travel in the air lines.
As an alternative embodiment, the control system may further include a three-way valve SEV1 and a humidity sensor D3. The first end 1 of the three-way valve SEV1 is connected with the outlet of the cathode side of the fuel cell, the second end 2 of the three-way valve is connected with the second input end of the membrane humidifier, and the third end of the three-way valve is connected with the external environment. A humidity sensor D3 provided in the stack of the fuel cell 13 for detecting the humidity of the stack; under the condition that the humidity of the galvanic pile is lower than the preset humidity, the third end 3 of the three-way valve SEV1 is closed, and the first end 1 and the second end 2 of the three-way valve are opened; in case the humidity of the galvanic pile is greater than or equal to a preset humidity, the second end 2 of the three-way valve is closed, and the first end 1 and the third end 3 of the three-way valve are opened.
It should be noted that the humidity sensor is used for determining whether the stack of the fuel cell needs to be humidified, and the preset humidity is a humidity threshold required for the stack of the fuel cell to normally operate. When the humidity of the stack is lower than the preset humidity, the humidity of the stack is considered not to satisfy the reaction condition, the first end 1 and the second end 2 of the three-way valve SEV1 are controlled to be opened according to the above setting, and the water vapor discharged from the stack outlet of the fuel cell stack is sent to the membrane humidifier through the first end 1 and the second end 2 of the three-way valve SEV1 to humidify the air to be purged. In the case where the humidity of the stack is greater than or equal to the preset humidity, the humidity of the stack is considered to reach a "flooded degree", that is, the humidity has reached the upper limit of normal operation, and the second end 2 of the three-way valve is closed according to the above setting, the first end 1 and the third end 3 of the three-way valve are opened, and the water vapor discharged from the stack outlet of the stack of the fuel cell is discharged to the external environment as off gas along the first end 1 and the third end 3 of the three-way valve (the air lines from the first end 1 and the third end 3 of the three-way valve to the external environment are hereinafter referred to as cathode off gas discharge lines), and does not participate in the humidification in the membrane humidifier.
In the above embodiment, the switching between the steam feedback line and the cathode off-gas discharge line is realized by switching on/off of three terminals of the three-way valve SEV 1.
As an alternative embodiment, the above control system may further include a first regulating valve EV1 disposed between the first end 1 of the three-way valve SEV1 and the outlet of the cathode side of the fuel cell 13, for regulating the flow of water vapor into the membrane humidifier 12.
It should be noted that the first regulating valve EV1 is embodied as a proportional regulating valve, EV1 having the above-mentioned regulating function is based on the premise that the three-way valve SEV1 is set such that the first end 1 and the second end 2 are open and the third end 3 is closed, in which case the above-mentioned steam return line is in operation. The adjustment setting of the first adjustment valve EV1 is determined by the humidity of the cell stack detected by the humidity sensor D3 and is in a certain functional relationship, for example, in the case that the humidity of the cell stack is lower than the preset humidity, the three-way valve SEV1 has been set such that the first end 1 and the second end 2 are open and the third end 3 is closed, the magnitude of the water vapor flow allowed to pass through by the first adjustment valve EV1 is in an inverse proportional functional relationship with the humidity of the cell stack, the smaller the humidity of the cell stack is, the larger the opening degree of the first adjustment valve EV1 is, so that the water vapor flow is increased, so as to enhance the humidification capability and the humidification speed of the membrane humidifier, and as the humidity of the cell stack is increased, the opening degree of the first adjustment valve EV1 is correspondingly decreased, so as to reduce the humidification capability of the membrane humidifier, and avoid the.
In the above embodiment, the humidity sensor D3 is used to collect the humidity of the reaction area in the fuel cell stack as the judgment of whether or not the fuel cell stack is humidified and the humidification degree, but the relationship between the humidity of the stack inlet gas of the fuel cell and the humidity of the stack outlet gas and the humidity of the reaction area in the fuel cell stack can be finally obtained through experimental data preparation and analysis, and the adjustment and control of the water vapor flow rate are performed through the first regulating valve according to the relationship between the humidity of the stack inlet gas and the humidity of the stack outlet gas.
According to the embodiment, the first regulating valve EV1 is arranged, so that the humidity of the galvanic pile can be controlled and accurately regulated, and the galvanic pile can meet the humidity requirement under the working condition.
Optionally, the stack of the fuel cell 13 is further provided with a water inlet Win of a water inlet pipe connected to the anode side, for inputting reaction water, and it should be noted that the water inlet pipe is independent from the air pipe.
As an alternative embodiment, the control system may further include a flow sensor 22, disposed at an input end of the air compressor 11, for detecting an intake air flow F1 of the air compressor; the pressure sensor is arranged at the output end of the air compressor and used for detecting the pressure P1 of the air to be blown and output by the air compressor; the air compressor adjusts the rotating speed to enable the air inflow to be within a preset flow range and enable the pressure of air to be blown to be within a preset pressure range.
It should be noted that the pressure of the air to be purged output by the air compressor 11 needs to be greater than the pressure (i.e., the minimum pressure Pmin) required by the rated operating point of the stack of the fuel cell 13, and needs to be smaller than the maximum pressure (i.e., the maximum pressure Pmax) that can be borne by the membrane electrode of the membrane humidifier, and the values of the preset pressure range are as follows: pmin is less than or equal to the preset pressure and less than or equal to Pmax. On the other hand, the air inlet flow of the air compressor is larger than the required gas flow of the rated working point of the electric pile and smaller than the corresponding air inlet flow when the output of the fuel cell reaches the peak power. If the intake flow F1 detected by the flow sensor 22 or the pressure P1 detected by the pressure sensor does not fall within the preset range, the air compressor is rotated until the intake flow and the pressure of the air to be purged satisfy the preset range.
Specifically, the rotation speed of the air compressor 11 is in a direct proportional relationship with the pressure/intake flow of the air to be purged, that is, the rotation speed of the air compressor is increased, the rotation speed of the air compressor is decreased, and the pressure/flow is decreased. The pressure of the air to be purged and the adjustment of the air inflow are adjusted according to the duty ratio curve of the air compressor, and different duty ratios correspond to a group of pressure and flow values. According to different types of air compressors, different working curves and parameters exist, and the regulating curve and function of the air compressor are not limited.
According to the embodiment, the flow rate sensor 22 and the pressure sensor detect the states of the flow rate F1 and the pressure P1 and feed back the control and adjustment of the air compressor, so that the pressure and the flow rate of the air to be purged are accurately controlled and the requirement of the operation of the fuel cell is met.
Optionally, the control system further comprises a filter 21 for filtering air entering the control system to meet cleanliness requirements. The input end of the filter 21 is connected with the external environment and is used as the input end of air in the system, the output end of the filter 21 is connected with the input end of the flow sensor 22, and the filtered clean air is sent to the flow sensor to participate in the humidification and heating control in the air pipeline.
As an alternative embodiment, the control system may further include an intercooler 24, where the intercooler 24 is disposed between the air compressor 11 and the membrane humidifier 12; the first temperature sensor is arranged at the output end of the air compressor and used for detecting a first temperature T1 before air to be blown enters the intercooler; the second temperature sensor is arranged at the output end of the intercooler and used for detecting a second temperature T2 of the air to be blown and cleaned after being cooled by the intercooler; and the intercooler adjusts the rotating speed according to the first temperature and the second temperature so as to enable the second temperature to reach a target temperature for purging the cathode side of the fuel cell.
It should be noted that, because the air provided by the air compressor 11 is high-temperature gas, which is about 100 ℃ at normal temperature, the maximum temperature that the membrane in the membrane humidifier can bear is 90 ℃, and the optimal operating temperature of the fuel cell stack is 60 ℃ to 80 ℃. Therefore, the temperature of the air to be blown and swept output by the air compressor is controlled to be lower than the highest temperature which can be borne by the membrane humidifier through the intercooler, and the phenomenon that the membrane humidifier is damaged due to overhigh temperature of the air to be blown and the temperature of the air to be blown and swept exceeds the optimal working temperature range of the galvanic pile is avoided. Therefore, the second temperature is generally 60 ℃ to 80 ℃, and the temperature bearing capacity of the membrane humidifier and the optimal working temperature of the galvanic pile are met.
Specifically, a first temperature T1 detected by a first temperature sensor is compared with a second temperature T2 detected by a second temperature sensor to determine whether the intercooler needs to be activated or adjusted in speed. For example, if the first temperature is greater than the second temperature (i.e., the temperature difference T1-T2 is greater than 0, and the temperature of the air to be purged output by the air compressor is higher than the temperature of the air entering the membrane humidifier), it is determined that the intercooler needs to be operated to adjust or increase the rotation speed to enhance the adjustment capability, otherwise, the membrane humidifier is damaged due to the excessively high temperature of the air to be purged. Through the adjustment, if the temperature difference T1-T2 between the first temperature and the second temperature is less than or equal to 0 or infinitely close to zero, the temperature adjustment is considered to be successful, and the intercooler 24 maintains the low-speed rotation. After the temperature is successfully adjusted, the fuel cell can be warmed, and air to be purged is sent to the electric stack.
The control system also comprises an electromagnetic valve DV1, wherein the electromagnetic valve DV1 is arranged between the output end of the membrane humidifier 11 and the stack inlet of the cathode side of the fuel cell 13 and is used for controlling the on-off of an air pipeline so as to realize whether air to be purged is fed into the electric stack or not. When the second temperature meets the condition and the warm-up is determined to be started, DV1 is started, and air to be purged is sent to the electric stack for cathode side purging. Meanwhile, the first regulating valve EV1 needs to be opened synchronously, the three-way valve SEV1 is set to have the first end 1 and the third end 3 open, the second end 2 closed, and the air to be purged flows through the air pipeline to heat the stack, and in the process, the cathode side is completely opened, so that the pressure difference between the cathode side and the anode side is not too large.
According to the embodiment, the temperature of the air to be swept is accurately controlled, and the temperature bearing capacity of the membrane humidifier and the optimal working temperature of the galvanic pile are met.
As an alternative embodiment, the control system may further include a third temperature sensor, where the third temperature sensor is disposed at a stack inlet of the cathode side of the fuel cell, and is used to detect a stack inlet temperature T3 of the cathode side of the fuel cell; the fourth temperature sensor is arranged at a stack outlet of the cathode side of the fuel cell and is used for detecting the stack outlet temperature T4 of the cathode side of the fuel cell; when the difference between the stack inlet temperature and the stack outlet temperature is smaller than a preset value, a gas path on the anode side of the fuel cell is opened, and the electric stack of the fuel cell is started to react.
Specifically, the difference between the stack entering temperature T3 and the stack exiting temperature T4 is used to determine whether the stack of the fuel cell reaches the optimal operating temperature (i.e. whether warm stack operation is successful), the preset value depends on the maximum value of the difference between the stack entering temperature and the stack exiting temperature allowed by the normal operation of the stack, generally speaking, the smaller the difference between the stack entering temperature and the stack exiting temperature is, the better the normal operation regulation of the stack is, as an optimal embodiment, when the stack entering temperature and the stack exiting temperature are detected to be equal, the warm stack is determined to be successful, and the fuel cell starts to operate.
The control system also comprises an electromagnetic valve DV2 and a pulse valve MV1 which are arranged on the anode side of the fuel cell, and an electromagnetic valve DV2 is arranged on the inlet of the anode side of the fuel cell and is used for controlling the input of reaction gas hydrogen; a pulse valve MV1 is provided at the stack outlet on the anode side of the fuel cell for opening at the start-up of the fuel cell to discharge anode off-gas.
The warm-up control flow of the control system is further described with reference to the control flow chart of the warm-up stack of the fuel cell provided in the embodiment of fig. 4 as follows:
after the control system of the fuel cell is started, firstly, the air compressor is started to compress air to generate air to be purged, the step S401 is entered, the pressure P1 of the air to be purged output by the air compressor is detected, and the adjustment direction of the rotating speed of the air compressor is judged according to the comparison between the pressure P1 and the minimum pressure Pmin and the maximum pressure Pmax. If the value of P1 satisfies Pmin ≦ P1 ≦ Pmax, the flow proceeds to step S402 to detect whether the intake air flow rate F1 of the air compressor satisfies Fmin ≦ F1 ≦ Fmax, and if the foregoing condition is satisfied, the flow proceeds to step S407. If the pressure P1 of the air to be purged or the intake flow F1 of the air compressor does not satisfy the value range condition, the flow needs to go to the branch step S403 or S404 to further determine the deviation trend of the actual measured value of P1 or F1 from the preset range to determine the adjustment direction of the air pressure rotation speed, specifically, if P1 is less than Pmin or F1 is less than Fmin, the flow goes to the step S403, and the flow goes to the step S405 to adjust the air compressor rotation speed; if P1 > Pmax or F1 > Fmax, the process goes to step S404, and the process goes to step S406 to adjust the rotation speed of the air compressor downwards. After the adjustment in step S405 or S406, the process proceeds to step S401 to detect whether the pressure P1 of the air to be purged satisfies the preset condition and repeats the above steps.
It should be noted that the detection of P1 and the detection of F1 are not in a sequential order, and both are used as control conditions for adjusting the rotation speed of the air compressor, so the order of step S401 and step S402 can be interchanged.
If yes in step S402, the process proceeds to step S407, where the first temperature T1 is determined to be equal to or lower than the second temperature T2, and if yes, the process proceeds to step S408; if the result is no, the process proceeds to step S409 to start the intercooler for cooling the air to be purged, and simultaneously, the process proceeds to step S410 to judge whether T1 is more than or equal to T2, if T1 is more than or equal to T2 in step S410, the process proceeds to step S412 to enable the intercooler to operate at a low speed and proceeds to step S408, if T1-T2 is more than 0, the process proceeds to step S411 to maintain the operation of the intercooler or adjust the rotation speed (acceleration or deceleration) according to the Delta T, the rotation speed is in direct proportion to the Delta T (namely T1-T2), the process proceeds to step S410 after the rotation speed adjustment of the intercooler is completed in step S411, the process proceeds to step S412 if T1 is more than or equal to T2, and if not, the process proceeds to step S412.
Step S408, the electromagnetic valve DV1 is opened, the first regulating valve EV1 and the three-way valve SEV1 are set to be that the first end 1 and the third end 3 are opened, the second end 2 is closed, preparation is made for the air to be purged to flow in the system, and the system starts to enter a warm-up flow.
And step 413, allowing air to be purged to flow in the air pipeline to heat the galvanic pile.
Step S414, detecting a stack entering temperature T3 on the cathode side of the fuel cell and a stack exiting temperature T4 on the cathode side of the fuel cell, if T3 is equal to T4, then the process goes to step S415, closing the third end 3 of the three-way valve SEV1, and then the process goes to step S416, opening the electromagnetic valve DV2, the pulse valve MV1 and the second end 2 of the three-way valve SEV1, the first end 1 of the SEV1 is kept in an open state, hydrogen is sent to the stack of the fuel cell, and the fuel cell is started. If the determination result in the step S414 is no (i.e., T4 has not heated to T3), the method returns to the step S413 to continue heating the stack until the determination result in the step S414 is yes.
According to the embodiment, warm-up preparation before the fuel cell stack is started is realized, the whole air pipeline has no additional heating resistor or other heating devices, the system is simpler, and no additional power consumption exists.
Example 2
In accordance with an embodiment of the present invention, there is provided an embodiment of a control method for a fuel cell, it should be noted that the steps illustrated in the flowchart of the accompanying drawings may be executed in a computer system such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be executed in an order different from that described herein.
According to the flowchart of the control method of the fuel cell shown in fig. 3, the control method of the fuel cell includes the steps of:
step S302, collecting water vapor generated in the reaction process of the electric pile of the fuel cell after the fuel cell is started;
step S303, humidifying air to be purged by using water vapor;
and step S304, blowing the humidified air to be purged to the cathode side of the fuel cell so as to humidify the electric pile of the fuel cell.
Specifically, the air to be purged in step S303 is generated by compressing air with an air compressor, the humidification process is completed by a membrane humidifier, the air compressor, the membrane humidifier and the fuel cell stack are disposed in the same air pipeline, and the air pipeline is used for carrying the air to be purged and forming a loop. After the air to be purged is generated by the air compressor, the air is conveyed to the membrane humidifier along the air pipeline. After the fuel cell normally works, the fuel cell can generate steam in the reaction, a steam exhaust pipeline of the fuel cell stack is connected with a humidification air pipeline of a membrane humidifier, and the dry gas can be humidified by the steam generated after the stack reaction through the membrane humidifier without adding a steam vibration device. And conveying the air to be purged to a stack inlet on the cathode side of the fuel cell after the air to be purged is humidified, purging the cathode side of the fuel cell, and conveying the air to the membrane humidifier along the air pipeline after the air is discharged from a stack outlet of the fuel cell, so that the recycling of water vapor discharged by the fuel cell stack is realized in the loop formed by the air pipeline.
Through the steps, the air to be purged is humidified by recycling the water vapor generated by the fuel cell stack in the reaction process, and the water vapor in the air pipeline is recycled, so that the technical problem that in the prior art, the system structure is complex due to the fact that additional steam vibrators and other equipment are needed to humidify the hydrogen fuel cell stack is solved, the fuel cell system realizes the humidification and the stack warming of the hydrogen fuel cell stack by using the additional heat energy and the steam generated in the operation process, extra power consumption is avoided, and the system energy consumption is reduced.
As an alternative embodiment, in step S303, humidifying the air to be purged by using water vapor includes the following steps:
step S303a, detecting the humidity of the galvanic pile;
step S303b, humidifying the air to be purged by using water vapor under the condition that the humidity of the galvanic pile is lower than the preset humidity;
and step S303c, in the case that the stack humidity is greater than or equal to the preset humidity, stopping humidifying the air to be purged by using the water vapor.
Specifically, the preset humidity is a humidity threshold required for normal operation of a stack of the fuel cell. In step S303b, when the humidity of the stack is lower than the preset humidity, the humidity of the stack is considered not to satisfy the reaction condition, the first end 1 and the second end 2 of the three-way valve SEV1 may be controlled to be opened, and the water vapor discharged from the stack outlet of the fuel cell stack is sent to the membrane humidifier through the first end 1 and the second end 2 of the three-way valve SEV1 to humidify the air to be purged. In step S303c, when the humidity of the stack is greater than or equal to the preset humidity, the humidity of the stack is considered to reach the "flooding degree", that is, the humidity has reached the upper limit of normal operation, the second end 2 of the three-way valve is closed according to the above setting, the first end 1 and the third end 3 of the three-way valve are opened, and the water vapor discharged from the stack outlet of the stack of the fuel cell is discharged to the external environment along the first end 1 and the third end 3 of the three-way valve as tail gas, and does not participate in the humidification in the membrane humidifier.
Through the steps, the humidity of the fuel cell stack is controllable, so that the fuel cell stably works within a preset humidity range.
As an alternative embodiment, before the stack reaction of the fuel cell, the control method further includes step S300 of detecting an intake air flow rate of an air compressor and a pressure of air to be purged output by the air compressor, wherein the air compressor is used for compressing air to generate the air to be purged; and adjusting the rotating speed of the air compressor to enable the air inlet flow to be within a preset flow range and the pressure of the air to be blown to be within a preset pressure range.
It should be noted that the pressure of the air to be purged needs to be greater than the pressure (i.e., the minimum pressure Pmin) required by the rated operating point of the fuel cell stack, and needs to be less than the maximum pressure (i.e., the maximum pressure Pmax) that can be borne by the membrane electrode of the membrane humidifier, and the values of the preset pressure range are as follows: pmin is less than or equal to the preset pressure and less than or equal to Pmax. On the other hand, the air inlet flow of the air compressor is larger than the required gas flow of the rated working point of the electric pile and smaller than the corresponding air inlet flow when the output of the fuel cell reaches the peak power. If the intake air flow rate detected in step S300 or the pressure of the air to be purged detected by the pressure sensor is not within the above-mentioned preset range, the rotation speed of the air compressor is adjusted until the intake air flow rate and the pressure of the air to be purged satisfy the above-mentioned preset range.
The rotating speed of the air compressor is in a direct proportional relation with the pressure/air inflow flow of air to be purged, namely the rotating speed of the air compressor is adjusted upwards, the pressure/flow is increased, the rotating speed of the air compressor is adjusted downwards, and the pressure/flow is reduced. The pressure of the air to be purged and the adjustment of the air inflow are adjusted according to the duty ratio curve of the air compressor, and different duty ratios correspond to a group of pressure and flow values. According to different types of air compressors, different working curves and parameters exist, and the regulating curve and function of the air compressor are not limited.
As an alternative embodiment, before the stack reaction of the fuel cell, the control method further includes step S300a, detecting a first temperature T1 before the air to be purged enters an intercooler; detecting a second temperature T2 of the air to be purged after being cooled by an intercooler; and adjusting the rotation speed of the intercooler according to the first temperature and the second temperature so that the second temperature reaches a target temperature for purging the cathode side of the fuel cell.
It should be noted that, because the air provided by the air compressor is high temperature gas, which is about 100 ℃ at normal temperature, the maximum temperature that the membrane in the membrane humidifier can bear is 90 ℃, and the optimal operating temperature of the fuel cell stack is 60 ℃ to 80 ℃. Therefore, the temperature of the air to be blown and swept output by the air compressor is controlled to be lower than the highest temperature which can be borne by the membrane humidifier through the intercooler, and the phenomenon that the membrane humidifier is damaged due to overhigh temperature of the air to be blown and the temperature of the air to be blown and swept exceeds the optimal working temperature range of the galvanic pile is avoided. In step S300a, the first temperature T1 and the second temperature T2 are detected and compared to determine whether the second temperature T2 satisfies the aforesaid optimum operating temperature range and whether the intercooler needs to be activated or adjusted in rotation speed. For example, if the first temperature is greater than the second temperature (i.e., the temperature difference T1-T2 is greater than 0, and the temperature of the air to be purged output by the air compressor is higher than the temperature of the air entering the membrane humidifier), it is determined that the intercooler needs to be operated to adjust or increase the rotation speed to enhance the adjustment capability, otherwise, the membrane humidifier is damaged due to the excessively high temperature of the air to be purged. Through the adjustment, if the temperature difference T1-T2 between the first temperature and the second temperature is less than or equal to 0 or infinitely close to zero, the temperature adjustment is considered to be successful, and the intercooler maintains the low-speed rotation. After the temperature is successfully adjusted, the fuel cell can be warmed, and air to be purged is sent to the electric stack.
As an alternative embodiment, before the stack reaction of the fuel cell, the control method further includes step S300b, detecting a stack-in temperature T3 of the cathode side of the fuel cell and a stack-out temperature T4 of the cathode side of the fuel cell; and when the difference between the stack inlet temperature and the stack outlet temperature is smaller than a preset value, starting a gas path on the anode side of the fuel cell, and starting the electric stack of the fuel cell to react.
Specifically, the difference between the stack entering temperature T3 and the stack exiting temperature T4 is used to determine whether the stack of the fuel cell reaches the optimal operating temperature (i.e. whether warm stack operation is successful), the preset value depends on the maximum value of the difference between the stack entering temperature and the stack exiting temperature allowed by the normal operation of the stack, generally speaking, the smaller the difference between the stack entering temperature and the stack exiting temperature is, the better the normal operation regulation of the stack is, as an optimal embodiment, when the stack entering temperature and the stack exiting temperature are detected to be equal, the warm stack is determined to be successful, and the fuel cell starts to operate.
According to the control method of the fuel cell provided by the embodiment, the self-humidification and self-heating in the system are realized by recycling the water vapor generated in the reaction process of the fuel cell stack and utilizing the high temperature of the compressed air of the air compressor, the technical problem that the system structure is complicated due to the fact that additional steam vibrators and other equipment are needed to be added for humidifying the hydrogen cell stack in the prior art is solved, and the control method has the advantages of being simple in system structure and simple in control logic.
Example 3
According to an embodiment of the present invention, there is provided a control apparatus of a fuel cell, as shown in fig. 5, including:
a collecting module 51 for collecting water vapor generated during a reaction of a stack of the fuel cell after the fuel cell is started;
a humidification module 52 for humidifying the air to be purged with water vapor;
and the purging module 53 is used for purging the humidified air to be purged to the cathode side of the fuel cell so as to humidify the stack of the fuel cell.
According to the control device of the embodiment, the water vapor generated in the reaction process of the fuel cell stack is recycled, the self-humidification of the system is realized, additional devices such as a steam vibrator are not needed, the technical problem that the system structure is complex due to the fact that additional devices such as the steam vibrator are needed to be added for humidifying the hydrogen cell stack in the prior art is solved, and the control device has the advantages of being simple in system structure and simple in control logic.
According to an embodiment of the present invention, there is provided a storage medium including a stored program, wherein a device on which the storage medium is controlled to execute the above-described control method of the fuel cell is executed when the program is executed.
According to an embodiment of the present invention, there is provided a processor for executing a program, wherein the program executes the control method of the fuel cell described above.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (14)

1. A control system of a fuel cell, characterized by comprising:
the air compressor is used for compressing air to generate air to be blown;
a first input end of the membrane humidifier is connected with the air compressor and used for receiving the air to be purged, a second input end of the membrane humidifier is connected with a stack outlet on the cathode side of the fuel cell and used for receiving water vapor discharged by the stack outlet of the fuel cell in the process of electric stack reaction, and an output end of the membrane humidifier is connected to a stack inlet on the cathode side of the fuel cell;
after the membrane humidifier humidifies the air to be purged by using the water vapor, the humidified air to be purged is purged to the cathode side of the fuel cell, and a galvanic pile of the fuel cell is humidified.
2. The system of claim 1, further comprising:
a first end of the three-way valve is connected with a stack outlet on the cathode side of the fuel cell, a second end of the three-way valve is connected with a second input end of the membrane humidifier, and a third end of the three-way valve is connected to an external environment;
the humidity sensor is arranged on a galvanic pile of the fuel cell and used for detecting the humidity of the galvanic pile;
under the condition that the humidity of the galvanic pile is lower than the preset humidity, the third end of the three-way valve is closed, and the first end and the second end of the three-way valve are opened; and under the condition that the humidity of the galvanic pile is greater than or equal to the preset humidity, the second end of the three-way valve is closed, and the first end and the third end of the three-way valve are opened.
3. The system of claim 2, further comprising:
and the first regulating valve is arranged between the first end of the three-way valve and the outlet of the cathode side of the fuel cell and is used for regulating the flow of the water vapor entering the membrane humidifier.
4. The system of claim 1, further comprising:
the flow sensor is arranged at the input end of the air compressor and used for detecting the air intake flow of the air compressor;
the pressure sensor is arranged at the output end of the air compressor and used for detecting the pressure of the air to be blown and swept output by the air compressor;
the air compressor adjusts the rotating speed to enable the air inlet flow to be within a preset flow range and enable the pressure of the air to be blown to be within a preset pressure range.
5. The system of claim 1, further comprising:
an intercooler disposed between the air compressor and the membrane humidifier;
the first temperature sensor is arranged at the output end of the air compressor and used for detecting a first temperature of the air to be blown before the air enters the intercooler;
the second temperature sensor is arranged at the output end of the intercooler and used for detecting a second temperature of the air to be blown and swept, which is cooled by the intercooler;
wherein the intercooler adjusts the rotation speed according to the first temperature and the second temperature so that the second temperature reaches a target temperature for purging the cathode side of the fuel cell.
6. The system of claim 1, further comprising:
the third temperature sensor is arranged at a stack inlet of the cathode side of the fuel cell and is used for detecting the stack inlet temperature of the cathode side of the fuel cell;
the fourth temperature sensor is arranged at a stack outlet of the cathode side of the fuel cell and is used for detecting the stack outlet temperature of the cathode side of the fuel cell;
and when the difference between the stack inlet temperature and the stack outlet temperature is smaller than a preset value, starting a gas path on the anode side of the fuel cell, and starting the electric stack of the fuel cell to react.
7. A control method of a fuel cell, characterized by comprising:
collecting water vapor generated by a fuel cell stack during a reaction process after the fuel cell is started;
humidifying air to be purged by using the water vapor;
and blowing the humidified air to be purged to the cathode side of the fuel cell so as to humidify the stack of the fuel cell.
8. The method of claim 7, wherein humidifying air to be purged using the water vapor comprises:
detecting the humidity of the galvanic pile;
humidifying the air to be purged by using the water vapor under the condition that the humidity of the galvanic pile is lower than a preset humidity;
and under the condition that the humidity of the galvanic pile is greater than or equal to the preset humidity, stopping humidifying the air to be swept by using the water vapor.
9. The method of claim 7, wherein prior to a stack reaction of the fuel cell, the method further comprises:
detecting the air inlet flow of an air compressor and the pressure of air to be purged output by the air compressor, wherein the air compressor is used for compressing air to generate the air to be purged;
and adjusting the rotating speed of the air compressor to enable the air inlet flow to be within a preset flow range and the pressure of the air to be blown to be within a preset pressure range.
10. The method of claim 9, wherein prior to a stack reaction of the fuel cell, the method further comprises:
detecting a first temperature of the air to be purged before the air enters an intercooler;
detecting a second temperature of the air to be blown cooled by the intercooler;
and adjusting the rotation speed of the intercooler according to the first temperature and the second temperature so that the second temperature reaches a target temperature for purging the cathode side of the fuel cell.
11. The method of claim 9, wherein prior to a stack reaction of the fuel cell, the method further comprises:
detecting the stack inlet temperature of the cathode side of the fuel cell and the stack outlet temperature of the cathode side of the fuel cell;
and when the difference between the stack inlet temperature and the stack outlet temperature is smaller than a preset value, starting a gas path on the anode side of the fuel cell, and starting the electric stack of the fuel cell to react.
12. A control device for a fuel cell, characterized by comprising:
the collecting module is used for collecting water vapor generated by a fuel cell stack in a reaction process after the fuel cell is started;
the humidifying module is used for humidifying air to be swept by using the water vapor;
and the purging module is used for purging the humidified air to be purged to the cathode side of the fuel cell so as to humidify the electric pile of the fuel cell.
13. A storage medium characterized by comprising a stored program, wherein an apparatus in which the storage medium is located is controlled to execute the fuel cell control method according to any one of claims 7 to 11 when the program is executed.
14. A processor for running a program, wherein the program is run to execute the fuel cell control method according to any one of claims 7 to 11.
CN202011086914.6A 2020-10-12 2020-10-12 Control system, method and device for fuel cell, storage medium and processor Pending CN112201806A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113113644A (en) * 2021-03-23 2021-07-13 东风汽车集团股份有限公司 Hydrogen fuel cell system
CN113328123A (en) * 2021-05-20 2021-08-31 东风汽车集团股份有限公司 Fuel cell stack shell purging device and control method
CN114430056A (en) * 2022-01-20 2022-05-03 上海恒劲动力科技有限公司 Humidity control method for proton exchange membrane fuel cell system
US20230043265A1 (en) * 2021-08-06 2023-02-09 Robert Bosch Gmbh Cathode subsystem cooling and humidification for a fuel cell system
CN116487654A (en) * 2023-05-15 2023-07-25 上海氢晨新能源科技有限公司 Humidity control system for cathode inlet gas of fuel cell and vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101635365A (en) * 2008-07-23 2010-01-27 通用汽车环球科技运作公司 Wvt design for reduced mass and improved sealing reliability
CN110380086A (en) * 2019-08-09 2019-10-25 河南豫氢动力有限公司 A kind of fuel cell auxiliary system and shut down cathode rapid purging method
CN110993989A (en) * 2019-12-31 2020-04-10 潍柴动力股份有限公司 Air circuit and electric pile purging method of proton exchange membrane fuel cell

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101635365A (en) * 2008-07-23 2010-01-27 通用汽车环球科技运作公司 Wvt design for reduced mass and improved sealing reliability
CN110380086A (en) * 2019-08-09 2019-10-25 河南豫氢动力有限公司 A kind of fuel cell auxiliary system and shut down cathode rapid purging method
CN110993989A (en) * 2019-12-31 2020-04-10 潍柴动力股份有限公司 Air circuit and electric pile purging method of proton exchange membrane fuel cell

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113113644A (en) * 2021-03-23 2021-07-13 东风汽车集团股份有限公司 Hydrogen fuel cell system
CN113113644B (en) * 2021-03-23 2022-04-15 东风汽车集团股份有限公司 Hydrogen fuel cell system
CN113328123A (en) * 2021-05-20 2021-08-31 东风汽车集团股份有限公司 Fuel cell stack shell purging device and control method
CN113328123B (en) * 2021-05-20 2022-08-30 东风汽车集团股份有限公司 Fuel cell stack shell purging device and control method
US20230043265A1 (en) * 2021-08-06 2023-02-09 Robert Bosch Gmbh Cathode subsystem cooling and humidification for a fuel cell system
US11688866B2 (en) * 2021-08-06 2023-06-27 Robert Bosch Gmbh Cathode subsystem cooling and humidification for a fuel cell system
CN114430056A (en) * 2022-01-20 2022-05-03 上海恒劲动力科技有限公司 Humidity control method for proton exchange membrane fuel cell system
CN116487654A (en) * 2023-05-15 2023-07-25 上海氢晨新能源科技有限公司 Humidity control system for cathode inlet gas of fuel cell and vehicle
CN116487654B (en) * 2023-05-15 2024-03-22 上海氢晨新能源科技有限公司 Humidity control system for cathode inlet gas of fuel cell and vehicle

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