CN109950578B - Cold start system and control method thereof - Google Patents
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- CN109950578B CN109950578B CN201910233128.5A CN201910233128A CN109950578B CN 109950578 B CN109950578 B CN 109950578B CN 201910233128 A CN201910233128 A CN 201910233128A CN 109950578 B CN109950578 B CN 109950578B
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Abstract
The invention discloses a cold start system, which comprises a fuel reactor, a fuel supply pipeline, an oxidant supply pipeline, a temperature sensor and a controller, wherein the fuel reactor is connected with the fuel supply pipeline through a pipeline; the fuel supply line is used for delivering fuel to an anode of the fuel reactor; the oxidant supply line for delivering oxidant to the cathode of the fuel reactor, the oxidant supply line including an injector for injecting oxidant to the cathode of the fuel reactor during cold start-up; the temperature sensor is used for detecting the temperature information of the fuel reactor and transmitting the temperature information to the controller; the ejector and the temperature sensor are both in communication connection with the controller; the present invention also provides a method for implementing the cold start system, which reduces the efficiency of the fuel cell by reducing the concentration of the oxidant, thereby increasing the amount of heat generated, and also increases the uniformity of the oxidant inside the stack, thereby improving the overall performance of the vehicle.
Description
Technical Field
The invention relates to the field of fuel cell control, in particular to a cold start system and a control method thereof.
Background
In recent years, new energy vehicles are receiving attention, and among them, fuel cell vehicles are receiving more and more attention. The fuel cell system includes a fuel cell stack in which reaction gas is electrochemically reacted to generate electric energy; and a reaction gas supply device that supplies a reaction gas to the fuel cell stack through the reaction gas flow path.
The fuel cell stack has a stack structure in which several hundred unit cells are stacked, and each unit cell is configured by sandwiching a membrane electrode MEA between a pair of bipolar plates. The membrane electrode assembly is composed of an anode electrode, a cathode electrode, and a polymer electrolyte membrane disposed therebetween.
When hydrogen as a fuel gas is supplied to an anode electrode of the fuel cell and air as an oxidant gas is supplied to a cathode electrode, an electrochemical reaction proceeds to generate electricity. In this way, the fuel cell directly obtains electricity by an electrochemical reaction, and is therefore preferable in terms of high power generation efficiency. Further, since the fuel cell generates only harmless water during power generation, it is also preferable from the viewpoint of influence on the environment.
In a fuel cell vehicle using such a fuel cell system as a power source, it is a difficult problem to start the fuel cell at a low temperature and heat the fuel cell in a short time with heat generated by increasing the power generation current value. Meanwhile, on the other hand, since the water production amount is greatly increased by the electrochemical reaction of the fuel cell with the increase of the generated current, bipolar plate channels and diffusion layers of the fuel gas are blocked, and the produced water is condensed into ice due to a low temperature, thereby deteriorating the diffusion of the fuel and preventing the electrochemical action of the fuel cell from occurring. So that the power generation amount and the power generation reaction are suppressed, which eventually lowers the heat generation amount.
To overcome these problems, there is a method of outputting current from the fuel cell in a pulse manner. For example, JP- ｃA-2004-. This kind of pulse current output can raise the temperature when the heating value is increased by decreasing the reaction efficiency during power generation thereof due to the pulse current output from the fuel cell at the time of cold start. However, the fuel cell system needs to operate with current variation satisfying pulse variation, and its pulse-like current source is difficult to control. In the cold start mode, the fuel cell is generally heated by a heating device in the auxiliary circulation loop in a cooling circulation pipeline, and the cold start is judged to be successful when the outlet temperature of the cooling water of the fuel cell is more than 5.5 ℃. This approach requires additional energy to heat the fuel cell and is not optimal from an energy utilization perspective.
In the patent US6764780B2, the fuel cell is operated by oxygen-deficient loading, which increases the internal resistance of the fuel cell to increase the temperature of the fuel cell, but although the method is simple, the flow rate of the oxidant and the fuel is too low to be controlled, which not only easily causes the problem of voltage reversal of the fuel cell, but also easily causes permanent burning of the membrane electrode due to improper loading. Patent CN201320253808.1 adopts a method of placing heating plates inside the fuel cell, which is easy to control, but is very easy to cause short circuit, and this method needs to process a mounting groove specially for mounting the membrane electrode, which is easy to cause stack leakage.
Disclosure of Invention
In view of the above problems of the prior art, an object of the present invention is to provide a cold start system and a control method thereof.
In order to solve the technical problems, the specific technical scheme of the invention is as follows:
in one aspect, the present invention provides a cold start-up system comprising a fuel reactor, a fuel supply line, an oxidant supply line, a temperature sensor, and a controller; the fuel supply pipeline is communicated with the fuel reactor and used for delivering fuel to an anode of the fuel reactor; the oxidant supply line is in communication with the fuel reactor for delivering oxidant to the cathode of the fuel reactor, the oxidant supply line including an injector for injecting oxidant to the cathode of the fuel reactor during cold start-up; the temperature sensor is arranged in the fuel reactor and used for detecting the temperature information of the fuel reactor and transmitting the temperature information to the controller; the injector and the temperature sensor are both in communication with the controller.
Specifically, the controller is used for controlling the cold start system to make a corresponding operation mode according to the temperature information of the fuel reactor.
Further, the fuel supply pipeline comprises a fuel supply device, a pressure control valve and a flow control valve which are arranged in sequence, the pressure control valve and the flow control valve are connected with the controller, the fuel supply device is used for supplying fuel into the fuel supply pipeline, and the pressure control valve and the flow control valve are used for adjusting the pressure and the concentration state of the fuel in the pipeline.
Further, the oxidant supply pipeline further comprises an air filter and an air compressor which are sequentially arranged, an outlet of the air compressor is communicated with an inlet of the ejector, a first check valve is arranged between the air compressor and the ejector, the air filter is used for filtering out impurities, sulfides and carbon oxides in air, and the air compressor is used for increasing the air pressure to working pressure.
Furthermore, a branch pipeline connected with the ejector in parallel is arranged between the air compressor and the cathode side of the fuel reactor, a second stop valve is arranged on the branch pipeline, and the air filter, the air compressor, the first stop valve and the second stop valve are all connected with the controller.
Furthermore, the anode and the cathode of the fuel reactor are both provided with circulation pipelines, the circulation pipeline of the anode of the fuel reactor is provided with a hydrogen circulation pump, the circulation pipeline of the cathode of the fuel reactor is provided with a third stop-and-go valve, and the hydrogen circulation pump and the third stop-and-go valve are connected with the controller.
Further, the cold start-up system further comprises a dilution chamber which is respectively communicated with the outlet of the anode and the outlet of the cathode of the fuel reactor and is used for receiving the waste gas generated by the fuel reactor.
In another aspect, the present invention further provides a method for controlling a cold start system, which is implemented by using the above cold start system, and includes the following steps:
receiving a vehicle start signal;
receiving temperature information of the fuel reactor detected by a temperature sensor;
judging whether the temperature of the fuel reactor reaches a temperature threshold value, if so, controlling the system to carry out cold start operation so as to increase the temperature of the fuel reactor; if not, controlling the system to be in normal starting operation.
Specifically, when a driver performs a vehicle starting operation, the controller receives a starting signal and controls the temperature sensor to work, the temperature sensor detects temperature information of the fuel reactor, and the controller analyzes the received temperature information to obtain a control flow of the next step.
Specifically, the cold start operation includes the steps of: controlling a pressure control valve to reduce the pressure of the fuel in the fuel supply line, controlling a flow control valve to reduce the flow rate of the fuel in the fuel supply line, and simultaneously reducing the rotation speed of the light circulation pump; and closing the second stop valve, opening the first stop valve and the third stop valve, and simultaneously reducing the rotating speed of the air compressor.
Further, the controlling the cold start system to be in cold start operation further comprises: and controlling the ejector to work to reduce the concentration of the oxidant of the cathode of the fuel reactor.
Specifically, the normal start operation includes the steps of: controlling a pressure control valve to increase the pressure of the fuel in the fuel supply pipeline, controlling a flow control valve to increase the flow of the fuel in the fuel supply pipeline, and simultaneously increasing the rotating speed of the light circulating pump; and opening the second stop valve, closing the first stop valve and the third stop valve, and simultaneously increasing the rotating speed of the air compressor.
By adopting the technical scheme, the cold start system and the control method thereof have the following beneficial effects:
1. according to the cold start system and the control method thereof, the ejector is arranged at the inlet of the cathode side of the fuel reactor, so that the concentration of oxidant gas can be effectively reduced, the concentration loss of the reactor is increased, and the heat generation of the reactor is increased.
2. According to the cold start system and the control method thereof, the oxidant gas with a high flow rate during cold start can be prevented from flooding at a low flow rate, and the problems of re-icing of water generated in a galvanic pile and the like are avoided.
3. According to the cold start system and the control method thereof, the ejector is arranged, so that the uniformity of the oxidant in the galvanic pile is improved in cold start, and the problems of local hot spots and non-uniform current density are avoided.
4. According to the cold start system and the control method thereof, the rotating speed of the air compressor does not need to be too low in cold start, and the NVH problem can be effectively avoided.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic diagram of a cold start system of the present invention;
fig. 2 is a flowchart of a control method of a cold start system according to the present invention.
In the figure: 1-fuel supply device, 2-pressure control valve, 3-flow control valve, 4-hydrogen circulating pump, 5-air filter, 6-air compressor, 7-first stop valve, 8-ejector, 9-second stop valve, 10-anode of fuel reactor, 11-electrolyte membrane, 12-cathode of fuel reactor, 13-third stop valve, 14-diluting chamber, 15-load.
Detailed Description
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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the 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, apparatus, article, or device 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 device.
Example 1
In a fuel cell vehicle using a fuel cell system as a power source, starting a fuel cell at a low temperature is always a research hotspot, in the prior art, an additional energy source is generally adopted to heat the fuel cell or change the internal resistance of the fuel cell to improve the temperature of the fuel cell, but the modes have some influences on the utilization efficiency or safety convenience of fuel and are not good choices; the fuel supply line is in communication with the fuel reactor for delivering fuel to the anode 10 of the fuel reactor; the oxidant supply line communicates with the fuel reactor for delivering oxidant to the cathode 12 of the fuel reactor, the oxidant supply line including an injector 8 for injecting oxidant to the cathode 12 of the fuel reactor in cold start-up; the temperature sensor is arranged in the fuel reactor and used for detecting the temperature information of the fuel reactor and transmitting the temperature information to the controller; the injector 8 and the temperature sensor are both in communication with the controller.
As shown in fig. 1, the fuel reactor stack includes hundreds of fuel cells, each of which includes a cathode 12, an electrolyte membrane 11 and an anode 10, in each unit cell, fuel may electrochemically react under catalysis of a catalyst layer by an anode flow channel, air may electrochemically react under catalysis of a catalyst layer by a cathode flow channel, thereby forming a flow of electrons, and finally, electric energy is discharged through a load 15.
In some embodiments, the anode 10 and the cathode 12 are closely attached to both sides of the electrolyte membrane 11, the anode 10 is supplied with fuel from a fuel supply line, the pressure and flow rate of the reactant gas are controlled by the fuel supply device 1 through the pressure regulating valve 2 and the flow valve 3, and the exhaust gas is circulated to the inlet for reuse by the hydrogen circulation pump 4 after passing through the anode 10, thereby achieving the effect of improving the fuel utilization rate. While a trace of inert gas will remain in the anode 10 after cycling, the anode line will have a purge valve (not shown) to vent the gas to ensure fuel concentration.
In some embodiments, the air in the oxidant supply line is first passed through an air filter 5 to remove impurities, sulfides and carbon oxides from the air, and then pressurized by an air compressor 6 to increase the pressure of the air to the operating pressure. In a normal operating state, the system controls to open the second check valve 9, and simultaneously close the first check valve 7 and the third check valve 13, so that air enters the cathode 12 through the second check valve 9.
In some embodiments, in cold start, the system controls to close the second check valve 9, open the first check valve 7 and the third check valve 13, so that air enters the ejector 8, and the concentration of the oxidant inside the cathode 12 is reduced under the action of the ejector 8, the reaction efficiency of the reactor is reduced, and thus the voltage of the fuel cell is reduced, and the heat generation amount is increased.
In some embodiments, the cold start-up system further comprises a dilution chamber in communication with an outlet of the anode and an outlet of the cathode of the fuel reactor, respectively, for receiving an exhaust gas produced by the fuel reactor.
The cold start system provided by the embodiment has the following beneficial effects:
1) according to the cold start system, the ejector is arranged at the inlet of the cathode side of the fuel reactor, so that the concentration of oxidant gas can be effectively reduced, the concentration loss of the reactor is increased, and the heat generation of the reactor is increased.
2) According to the cold start system, the oxidant gas has a high flow rate during cold start, so that flooding during low flow rate can be avoided, and the problems of re-icing of water generated in a galvanic pile and the like are avoided.
3) According to the cold start system, the ejector is arranged, so that the uniformity of the oxidant in the galvanic pile is improved in cold start, and the problems of local hot spots and non-uniform current density are avoided.
4) According to the cold start system, the rotating speed of the hollow press does not need to be too low in cold start, and the NVH problem can be effectively avoided.
Example 2
The present embodiment provides a control method of a cold start system based on embodiment 1, including the following steps:
receiving a vehicle start signal;
receiving temperature information of the fuel reactor detected by a temperature sensor;
judging whether the temperature of the fuel reactor reaches a temperature threshold value, if so, controlling the system to carry out cold start operation so as to increase the temperature of the fuel reactor; if not, controlling the system to be in normal starting operation.
Specifically, when a driver performs a vehicle starting operation, the controller receives a starting signal and controls the temperature sensor to work, the temperature sensor detects temperature information of the fuel reactor, and the controller analyzes the received temperature information to obtain a control flow of the next step.
The cold start operation comprises the steps of: the controller controls the pressure control valve 2 and the flow control valve 3 to reduce the pressure and the flow of the fuel in the fuel supply pipeline and simultaneously controls and reduces the rotating speed of the light circulating pump 4; the controller controls to close the second check valve 9, open the first check valve 7 and the third check valve 13, and simultaneously reduce the rotating speed of the air compressor 6.
Specifically, the ejector 8 receives the air from the air compressor 6, and when the ejected gas with certain kinetic energy is ejected from the nozzle, the ejected gas performs momentum exchange with the gas ejected around, so as to drive the gas to move forward, the two gases are mixed in the mixing tube, in the limited mixing tube, when the front gas is pushed forward, the rear gas becomes sparse and the pressure is reduced, that is, a certain negative pressure is generated near the outlet of the suction tube and in a certain range of the inlet section of the mixing tube, so that the ejected gas is continuously sucked into the mixing tube and continuously taken away by the ejected gas, the larger the ejection kinetic energy of the ejected gas is, the larger the suction force is generated, the more the gas is taken away, the gas exhausted by the air compressor 6 is mixed with the waste gas of the cathode 12 and is blown to the cathode 12 side again, so as to reduce the oxygen concentration in the air, and when the oxidant concentration is reduced, the concentration polarization of the galvanic pile participating in the electrochemical reaction can be gradually increased, the reaction rate can be reduced, thereby the voltage of the fuel cell is reduced, the heat production quantity is increased, and the temperature of the fuel reaction galvanic pile is further improved.
Specifically, this embodiment is accomplished in a cold start operation by the fuel cell supplying the reactants at a rate that is less than the rate at which the reactants are consumed within the fuel cell at any given time, thereby increasing a portion of the overvoltage at one electrode and generating additional heat.
In some embodiments, the flow rate of the reactants within the cathode 12 is also high due to the operation of the ejector 8, which ensures that water generated within the cathode can be discharged out of the stack at any time, improves water management problems at low power output, and avoids the occurrence of condensation of ice due to the inability to discharge the generated water.
In some embodiments, when the temperature of the reactor gradually rises to the normal operating temperature, the power demand of the whole vehicle rises, and the battery system enters the normal operating operation, specifically, the normal starting operation comprises the following steps: the controller controls the pressure control valve 2 and the flow control valve 3 to increase the pressure and the flow of the fuel in the fuel supply pipeline and simultaneously control and increase the rotating speed of the light circulating pump 4; and the controller controls to open the second stop valve 9, close the first stop valve 7 and the third stop valve 13, simultaneously increase the rotating speed of the air compressor 6, ensure that the air compressor 6 directly drives gas into the galvanic pile, and ensure that gas discharged by the cathode 12 directly enters the dilution chamber 14.
While the invention has been described with reference to specific embodiments, it will be appreciated by those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the invention can be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A control method of a cold start system, characterized in that the cold start system comprises: the fuel cell system comprises a fuel reactor, a fuel supply pipeline, an oxidant supply pipeline, a temperature sensor and a controller; the fuel supply line is in communication with the fuel reactor for delivering fuel to an anode (10) of the fuel reactor; the oxidant supply line being in communication with the fuel reactor for delivering oxidant to a cathode (12) of the fuel reactor, the oxidant supply line including an injector (8) for injecting oxidant to the cathode (12) of the fuel reactor in a cold start; the oxidant supply pipeline further comprises an air compressor (6), an outlet of the air compressor (6) is communicated with an inlet of the ejector (8), and a first stop valve (7) is arranged between the air compressor (6) and the ejector (8); a branch pipeline connected with the ejector (8) in parallel is arranged between the air compressor (6) and the cathode (12) of the fuel reactor, and a second stop valve (9) is arranged on the branch pipeline; a third stop-and-go valve (13) is arranged on a circulating pipeline of a cathode (12) of the fuel reactor, and the third stop-and-go valve (13) is connected with the ejector (8); the temperature sensor is arranged in the fuel reactor and used for detecting the temperature information of the fuel reactor and transmitting the temperature information to the controller; the ejector (8), the air compressor (6), the first stop valve (7), the second stop valve (9), the third stop valve (13) and the temperature sensor are all in communication connection with the controller; the anode (10) of the fuel reactor is provided with a circulating pipeline, the circulating pipeline of the anode (10) of the fuel reactor is provided with a hydrogen circulating pump (4), and the hydrogen circulating pump (4) is connected with the controller;
the method comprises the following steps:
receiving a vehicle start signal;
receiving temperature information of the fuel reactor detected by the temperature sensor;
judging whether the temperature of the fuel reactor reaches a temperature threshold value, if so, controlling the system to carry out cold start operation so as to increase the temperature of the fuel reactor; if not, controlling the system to be in normal starting operation;
the cold start operation includes: and closing the second stop-go valve (9), opening the first stop-go valve (7) and the third stop-go valve (13), controlling the ejector (8) to work, reducing the concentration of the oxidant of the cathode (12) of the fuel reactor, and simultaneously reducing the rotating speed of the air compressor (6).
2. A control method of a cold start system according to claim 1, wherein said cold start operation further comprises the steps of:
controlling a pressure control valve (2) to reduce the pressure of the fuel in the fuel supply line, controlling a flow control valve (3) to reduce the flow rate of the fuel in the fuel supply line, and simultaneously reducing the rotational speed of the hydrogen circulation pump (4).
3. A control method of a cold start system according to claim 1, wherein said normal start operation comprises the steps of:
controlling a pressure control valve (2) to increase the pressure of the fuel in the fuel supply pipeline, controlling a flow control valve (3) to increase the flow of the fuel in the fuel supply pipeline, and simultaneously increasing the rotating speed of the hydrogen circulating pump (4);
and opening the second stop valve (9), closing the first stop valve (7) and the third stop valve (13), and simultaneously increasing the rotating speed of the air compressor (6).
4. A control method of a cold start system according to claim 1, characterized in that the fuel supply line comprises a fuel supply device (1), a pressure control valve (2) and a flow control valve (3) arranged in sequence, and the pressure control valve (2) and the flow control valve (3) are both connected with the controller.
5. A control method of a cold start system according to claim 1, characterized in that the oxidant supply line further comprises an air filter (5); the air filter (5) is connected with the controller.
6. A control method of a cold start-up system according to claim 1, characterized in that the cold start-up system further comprises a dilution chamber (14), the dilution chamber (14) being in communication with an outlet of the anode (10) and an outlet of the cathode (12) of the fuel reactor, respectively, for receiving exhaust gas produced by the fuel reactor.
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| CN112310438A (en) * | 2019-08-02 | 2021-02-02 | 上海汽车集团股份有限公司 | Low-temperature self-starting method and device for proton exchange membrane fuel cell system |
| CN111082103B (en) * | 2019-12-31 | 2021-08-20 | 上海神力科技有限公司 | Low-temperature self-starting method of fuel cell system |
| CN111342085A (en) * | 2020-02-20 | 2020-06-26 | 浙江锋源氢能科技有限公司 | Fuel cell low-temperature cold start assembly, fuel cell control system and control method |
| CN111525164B (en) * | 2020-04-30 | 2021-03-12 | 郑州帅先新能源科技有限公司 | Fuel cell regeneration control method and fuel cell system |
| CN111916787B (en) * | 2020-08-13 | 2022-08-09 | 浙江高成绿能科技有限公司 | Miniature fuel cell and low-temperature starting operation method thereof |
| CN112670541A (en) * | 2020-12-24 | 2021-04-16 | 新源动力股份有限公司 | Method and system for judging membrane electrode icing in low-temperature starting process of fuel cell and storage medium |
| CN114784337B (en) * | 2022-06-17 | 2022-09-20 | 深圳市氢蓝时代动力科技有限公司 | Test system, generator and method for hydrogen gas circuit of fuel cell generator |
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| US20110214644A1 (en) * | 2010-03-05 | 2011-09-08 | Woodward, Inc. | Cold-Start Fuel Control System |
| DE102012001602A1 (en) * | 2012-01-26 | 2013-08-01 | Daimler Ag | Anode circuit of fuel cell system mounted in vehicle, has recirculation conveying device for anode gas exhaust, which is provided in form of gas jet pump by which fuel flowing to fuel cell is driven as propellant gas stream |
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| WO2007077904A1 (en) * | 2006-01-06 | 2007-07-12 | Toyota Jidosha Kabushiki Kaisha | Fuel cell system and its operation stop method |
| CN103797630A (en) * | 2011-09-15 | 2014-05-14 | Lg燃料电池系统公司 | A solid oxide fuel cell system |
| CN103855416A (en) * | 2012-12-03 | 2014-06-11 | 上海汽车集团股份有限公司 | Low-temperature quick starting system and method of fuel cells |
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