CN1750304A - Control method for improving starting and cut-off operation of fuel battery stability - Google Patents
Control method for improving starting and cut-off operation of fuel battery stability Download PDFInfo
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- CN1750304A CN1750304A CNA2004100663222A CN200410066322A CN1750304A CN 1750304 A CN1750304 A CN 1750304A CN A2004100663222 A CNA2004100663222 A CN A2004100663222A CN 200410066322 A CN200410066322 A CN 200410066322A CN 1750304 A CN1750304 A CN 1750304A
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- 239000000446 fuel Substances 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000001257 hydrogen Substances 0.000 claims description 71
- 229910052739 hydrogen Inorganic materials 0.000 claims description 71
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 67
- 238000010248 power generation Methods 0.000 claims description 59
- 238000012544 monitoring process Methods 0.000 claims description 12
- 101150063504 CAN2 gene Proteins 0.000 claims description 9
- 101150008604 CAN1 gene Proteins 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 239000012528 membrane Substances 0.000 description 25
- 239000007800 oxidant agent Substances 0.000 description 11
- 230000001590 oxidative effect Effects 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 4
- 238000003487 electrochemical reaction Methods 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- -1 hydrogen cations Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
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Classifications
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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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- Fuel Cell (AREA)
Abstract
This invention relates to a control method for increasing the stable start and close down operation including designing a control system, which operates especially when the generation system of a fuel battery stats and stops according to the time interval of the stop including controlling the H supply and circulation and air supply and discharge for 3~300 seconds 5~20 times of the normal metering ratio of 1.2, 20~2.5 each time when starts and ready to close down the generation system and the system tests itself normal and enters into the idle speed, which can eliminate the water gathering phenomenon in the battery.
Description
Technical Field
The present invention relates to fuel cells, and more particularly, to a control method for improving the stability of the fuel cell during start-up and shutdown operations.
Background
An electrochemical fuel cell is a device capable of converting hydrogen and an oxidant into electrical energy and reaction products. The inner core component of the device is a Membrane Electrode (MEA), which is composed of a proton exchange Membrane and two porous conductive materials sandwiched between two surfaces of the Membrane, such as carbon paper. The membrane contains a uniform and finely dispersed catalyst, such as a platinum metal catalyst, for initiating an electrochemical reaction at the interface between the membrane and the carbon paper. The electrons generated in the electrochemical reaction process can be led out by conductive objects at two sides of the membrane electrode through an external circuit to form a current loop.
At the anode end of the membrane electrode, fuel can permeate through a porous diffusion material (carbon paper) and undergo electrochemical reaction on the surface of a catalyst to lose electrons to form positive ions, and the positive ions can pass through a proton exchange membrane through migration to reach the cathode end at the other end of the membrane electrode. At the cathode end of the membrane electrode, a gas containing an oxidant (e.g., oxygen), such as air, forms negative ions by permeating through a porous diffusion material (carbon paper) and electrochemically reacting on the surface of the catalyst to give electrons. The anions formed at the cathode end react with the positive ions transferred from the anode end to form reaction products.
In a pem fuel cell using hydrogen as the fuel and oxygen-containing air as the oxidant (or pure oxygen as the oxidant), the catalytic electrochemical reaction of the fuel hydrogen in the anode region produces hydrogen cations (or protons). The proton exchange membrane assists the migration of positive hydrogen ions from the anode region to the cathode region. In addition, the proton exchange membrane separates the hydrogen-containing fuel gas stream from the oxygen-containing gas stream so that they do not mix with each other to cause explosive reactions.
In the cathode region, oxygen gains electrons on the catalyst surface, forming negative ions, which react with the hydrogen positive ions transported from the anode region to produce water as a reaction product. In a proton exchange membrane fuel cell using hydrogen, air (oxygen), the anode reaction and the cathode reaction can be expressed by the following equations:
and (3) anode reaction:
and (3) cathode reaction:
in a typical pem fuel cell, a Membrane Electrode (MEA) is generally placed between two conductive plates, and the surface of each guide plate in contact with the MEA is die-cast, stamped, or mechanically milled to form at least one or more channels. The flow guide polar plates can be polar plates made of metal materials or polar plates made of graphite materials. The fluid pore channels and the diversion trenches on the diversion polar plates respectively guide the fuel and the oxidant into the anode area and the cathode area on two sides of the membrane electrode. In the structure of a single proton exchange membrane fuel cell, only one membrane electrode is present, and a guide plate of anode fuel and a guide plate of cathode oxidant are respectively arranged on two sides of the membrane electrode. The guide plates are used as current collector plates and mechanical supports at two sides of the membrane electrode, and the guide grooves on the guide plates are also used as channels for fuel and oxidant to enter the surfaces of the anode and the cathode and as channels for taking away water generated in the operation process of the fuel cell.
In order to increase the total power of the whole proton exchange membrane fuel cell, two or more single cells can be connected in series to form a battery pack in a straight-stacked manner or connected in a flat-laid manner to form a battery pack. In the direct-stacking and serial-type battery pack, two surfaces of one polar plate can be provided with flow guide grooves, wherein one surface can be used as an anode flow guide surface of one membrane electrode, and the other surface can be used as a cathode flow guide surface of another adjacent membrane electrode, and the polar plate is called a bipolar plate. A series of cells are connected together in a manner to form a battery pack. The battery pack is generally fastened together into one body by a front end plate, a rear end plate and a tie rod.
A typical battery pack generally includes: (1) the fuel (such as hydrogen, methanol or hydrogen-rich gas obtained by reforming methanol, natural gas and gasoline) and the oxidant (mainly oxygen or air) are uniformly distributed in the diversion trenches of the anode surface and the cathode surface; (2) the inlet and outlet of cooling fluid (such as water) and the flow guide channel uniformly distribute the cooling fluid into the cooling channels in each battery pack, and the heat generated by the electrochemical exothermic reaction of hydrogen and oxygen in the fuel cell is absorbed and taken out of the battery pack for heat dissipation; (3) the outlets of the fuel gas and the oxidant gas and the corresponding flow guide channels can carry out liquid and vapor water generated in the fuel cell when the fuel gas and the oxidant gas are discharged. Typically, all fuel, oxidant, and cooling fluid inlets and outlets are provided in one or both end plates of the fuel cell stack.
The proton exchange membrane fuel cell can be used as a power system of vehicles, ships and other vehicles, and can also be used as a movable and fixed power generation device.
When the proton exchange membrane fuel cell can be used as a vehicle power system, a ship power system or a mobile and fixed power station, the proton exchange membrane fuel cell must comprise a cell stack, a fuel hydrogen supply system, an air supply subsystem, a cooling and heat dissipation subsystem, an automatic control part and an electric energy output part.
Fig. 1 shows a fuel cell power generation system, in fig. 1, 1 is a fuel cell stack, 2 is a hydrogen storage bottle or other hydrogen storage device, 3 is a pressure reducing valve, 4 is an air filtering device, 5 is an air compression supply device, 6', 6 are water-vapor separators, 7 is a water tank, 8 is a cooling fluid circulation pump, 9 is a radiator, 10 is a hydrogen circulation pump, and 11, 12 are humidification devices.
According to the principle or principle of the operation of the typical fuel cell power generation system, for example, the invention patent "a fuel cell with a dynamic control device" of shanghai mystery and technology ltd, chinese patent application No. 200410016609.4; 200420020471.0. the controller in the fuel cell power generation system monitors and calculates the working temperature and output power demand of the fuel cell, determines the control of hydrogen flow and air flow, and leads the fuel cell stack to realize under the condition of any power output requirement: 1. the output power is controlled in relation to the working temperature; 2. the output power is controlled in association with hydrogen flow and air flow, wherein the hydrogen flow and the air flow are controlled according to the required metering ratio of the output power, namely 1.2 and 2.0 respectively; 3. the hydrogen flow and the air flow are respectively linked and dynamically controlled with a corresponding humidifying device which can realize dynamic humidifying regulation control, so that the hydrogen and the air at any flow entering the fuel cell stack keep the optimal relative humidity (a certain value between 70 percent and 95 percent); 4. and (4) adjusting and controlling the method according to the conditions of the outside weather temperature and the outside weather humidity as in the point (3), and achieving the same purpose as the point (3). The ultimate goal is to achieve high performance operation and optimal operating conditions for the fuel cell stack at any power output requirement, which can result in optimal fuel efficiency.
The principle and principle of the dynamic control of the fuel cell power generation system are that the automatic monitoring and calculation are carried out at different working temperatures, environments, power output requirements and the like according to the operation parameters of the fuel cell, and the control is carried out according to a set target value to achieve the operation of the fuel cell under the optimal working condition and high efficiency.
The output power is controlled in a correlation mode with hydrogen flow and air flow, and the hydrogen flow is metered by 1.2 according to the output power requirement; the air flow is controlled according to the output power required metering ratio of 2.0-2.5, otherwise, the whole efficiency of the whole fuel cell power generation system is reduced, the operation condition of the fuel cell is in an abnormal state after the fuel cell runs for a long time under the condition of hydrogen and air with overlarge flow, and the performance of the fuel cell is reduced or even irreversibly loses under severe conditions.
Although the dynamic target control of the fuel cell power generation system can ensure the long-term operation of the whole fuel cell and achieve a high efficiency state, the following technical defects exist:
1. when the fuel cell power generation system is started and enters an idle state (at the moment, the output power of the whole power generation system is zero), the dynamic target control of the fuel cell power generation system requires that the air and hydrogen flow in the fuel cell power generation system is very small, and only some power consumption devices of the power generation system are supported to operate. When the fuel cell power generation system is restarted after being stopped for a long time, the air and hydrogen of the fuel cell power generation system are supplied and discharged, and the inside of the circulation subsystem is easy to be condensed to generate water accumulation due to the temperature change of the weather environment. At the moment, the fuel cell power generation system is still in an idling state after being started, the hydrogen supply circulation and the air supply and discharge are small, and accumulated water in the fuel cell power generation system cannot be discharged.
2. When the fuel cell power generation system generates a large amount of product water after high-power operation, and then rapidly enters an idle state and is shut down, the air and hydrogen supply and discharge of the fuel cell power generation system and the product water in the circulation subsystem are not completely discharged and are accumulated in the fuel cell.
Under the two conditions, water is accumulated in the fuel cell, and certain air and hydrogen guide grooves in the fuel cell stack are blocked in serious conditions, so that the operation stability of the fuel cell is influenced. The water blocking in the hydrogen guide groove or the air guide groove in a single cell can cause the single cell to be in a starvation state with insufficient supply of fuel hydrogen or air, the performance of the single cell is rapidly reduced, and the electrode is reversely polarized and burnt in severe cases.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a control method for improving the stable starting and shutdown operation of a fuel cell.
The purpose of the invention can be realized by the following technical scheme: a control method capable of improving stability of fuel cell starting and shutdown operation is characterized by comprising the step of designing a control system, wherein the control system carries out specific operation according to the shutdown time interval of a fuel cell power generation system when the fuel cell power generation system is started and shut down, the specific operation comprises the steps of starting and preparing to shut down the fuel cell power generation system each time, hydrogen is supplied and circulated after the power generation system is self-checked to normally enter an idling state, and air supply and discharge are controlled to operate for 3-300 seconds according to 5-20 times of a normal metering ratio of 1.2 and 2.0-2.5.
The control system comprises a CAN/CAN protocol converter, an instruction controller, a CAN/485 converter, an air pump frequency converter, an air pump, a singlechip controller, a hydrogen drainage electromagnetic valve, a hydrogen circulating pump, a CAN card and a monitoring PC, the CAN/CAN protocol converter mutually transmits data between a CAN2 bus in the fuel cell power generation system and a CAN1 bus of an upper controller of the fuel cell power generation system, the instruction controller controls and receives data of the CAN/CAN protocol converter to control the starting and shutdown running states of thewhole fuel cell power generation system, the air frequency converter receives the command of the command controller through the CAN/485 converter to control the rotating speed of the air pump, the single chip microcomputer controller receives the command of the command controller to control the opening and closing of the hydrogen water discharge electromagnetic valve and the hydrogen circulation speed of the hydrogen circulation pump, the monitoring PC receives and records the operation data of the command controller through the CAN card and provides manual monitoring.
The Baud rate and the data format of the CAN1 network of the upper layer controller are different from those of the CAN2 network in the fuel cell power generation system, and the CAN/CAN protocol converter is required to be converted by the network bridge when the upper layer controller sends starting and stopping signals and transmits fault codes.
The instruction controller detects a control signal of the CAN2 network to distinguish short-time shutdown and long-time shutdown, when the fuel cell power generation system is started, if the upper layer controller sends a short-time shutdown instruction, the instruction controller executes short-time air pump and hydrogen circulating pump speed-up operation, and if the upper layer controller sends a long-time shutdown instruction, the instruction controller executes long-time air pump speed-up and hydrogen circulating pump speed-up operation.
The monitoring PC CAN receive manual operation instructions and send operation instructions for accelerating the air pump and the hydrogen circulating pump and switching the hydrogen drainage electromagnetic valve to the instruction controller through the CAN card.
The control method of the invention performs special operation control at the start and stop of the fuel cell power generation system according to the stop time interval of the fuel cell power generation system. Generally speaking, after the fuel cell power generation system is self-checked to be normal and enters an idle state, hydrogen supply and circulation and air supply and discharge are controlled to operate for 3-300 seconds according to 5-20 times of normal metering ratio of 1.2 and 2.0-2.5, so as to ensure that all accumulated water in a hydrogen and air subsystem in the fuel cell power generation system is carried out by large-flow hydrogen and air, and no stagnation is caused.
Drawings
FIG. 1 is a schematic diagram of a prior art fuel cell power generation system;
FIG. 2 is a schematic diagram of the operation of the control method of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Example 1
As shown in fig. 2, a control method for improving the stability of the fuel cell during the start-up and shutdown operations includes designing a control system, which includes a CAN/CAN protocol converter, a command controller, a CAN/485 converter, an air pump (for controlling the rotation speed of the motor) frequency converter, an air pump M1 (motor), a single chip controller, a hydrogen water discharge electromagnetic valve, a hydrogen circulating pump M2, a CAN card, a monitoring (computer) PC, etc. The CAN/CAN protocol converter is also called a network bridge and is used for mutually transmitting data between a CAN2 bus in the fuel cell power generation system and a CAN1 bus of an upper controller of the fuel cell power generation system.The baud rate and the data format of the upper-layer controller CAN1 network are different from those of the CAN2 network in the fuel cell power generation system, and for example, the upper-layer controller needs to convert a network bridge when sending start-up and stop signals, transmitting fault codes and the like. The air pump frequency converter CAN receive the command of the command controller through the CAN/485 converter to control the speed of an air pump motor, the single chip microcomputer controller CAN receive the command of the command controller to control the hydrogen drainage electromagnetic valve switch and the hydrogen circulation speed of the hydrogen circulation pump, the command controller controls and receives data of the CAN/CAN protocol converter to control the starting, the shutdown and the running state of the whole fuel cell power generation system, and the data are transmitted to the monitoring PC through the CAN card to record running data and provide manual monitoring.
The command controller detects a control signal of the CAN2 network to distinguish between a temporary shutdown and a long-time shutdown. The temporary shutdown controlled by the upper layer controller instructs the controller to execute a very short speed-up program of the air pump M1 and the hydrogen circulating pump M2 when the upper layer controller is started next time, the upper layer controller considers that the refrigerator is started after being stopped for a long time, automatically controls the air pump frequency converter to increase the air flow when the refrigerator is started and shut down, and executes a long-time speed-up program of the air pump and the hydrogen pump. In special conditions, the air pump can be accelerated by monitoring the PC at any time, excessive liquid water is brought out, and the singlechip controller can be controlled to drive the hydrogen circulating pump and the hydrogen drainage electromagnetic valve to improve the hydrogen flow rate whilethe speed is increased.
The embodiment 1 is a control method for starting and stopping a 50KW fuel cell power generation system, which comprises the following steps of measuring hydrogen according to a normal flow metering ratio: 1.2; air 2.0 is subjected to flow target control; in the idle state, the total flow rates of hydrogen and air in the fuel cell stack are 20 liters/minute and 100 liters/minute respectively; at a full 50KW output, 600 litres/min, 2.5 cubic metres/min respectively. When the control system detects that the shutdown time of the fuel cell power generation system exceeds 12 hours, when the power generation system is restarted, when the system controller is normal in self-check and further shifts to an idling state, the controller immediately starts a special program, and the hydrogen and air flow is increased to 400 liters/minute and 2000 liters/minute for 60 seconds in the idling state. When the fuel cell power generation system detects that the shutdown time is 5 minutes, after the fuel cell power generation system is restarted, the system controller performs self-check normally, then the fuel cell power generation system enters an idling state, a special program is started immediately, the flow rates of hydrogen and air are increased to 400 liters/minute and 2000 liters/minute in the idling state, and the duration time is 3 seconds.
The fuel cell power generation system enters an idling state before stopping every time and the hydrogen and air flow rates are increased to 400 liters/minute and 2000 liters/minute for 10 seconds, and then the system is shut down.
Example 2
As shown in fig. 2, a control method for improving the stability of the fuel cell in the start-up and shutdown operations includes designing a control system substantially the same as that of embodiment 1. The difference is that: when the control system detects that the shutdown time of the fuel cell power generation system is about 6 hours, when the power generation system is restarted, when the system controller is normal in self-check and further shifts to an idling state, the controller immediately starts a special program, and the hydrogen and air flow is increased to 100 liters/minute and 500 liters/minute for 180 seconds in the idling state. When the fuel cell power generation system detects that the shutdown time is 5 minutes, after the fuel cell power generation system is restarted, the system controller performs self-check normally, then the fuel cell power generation system shifts to an idling state, a special program is started immediately, the hydrogen and air flow rate is increased to 100 liters/minute and 500 liters/minute in the idling state, and the duration is 12 seconds. Each time the fuel cell power generation system is stopped, the system enters an idling state and the hydrogen and air flow rates are increased to 100 liters/minute and 500 liters/minute for 40 seconds.
Example 3
As shown in fig. 2, a control method for improving the stability of the fuel cell in the start-up and shutdown operations includes designing a control system substantially the same as that of embodiment 1. The difference is that: when the control system detects that the shutdown time of the fuel cell power generation system exceeds 24 hours, when the power generation system is restarted, when the system controller is normal in self-check and further shifts to an idling state, the controller immediately starts a special program, and the hydrogen and air flow is increased to 400 liters/minute and 2000 liters/minute for 300 seconds in the idling state.
Claims (5)
1. A control method capable of improving stability of fuel cell starting and shutdown operation is characterized by comprising the step of designing a control system, wherein the control system carries out specific operation according to the shutdown time interval of a fuel cell power generation system when the fuel cell power generation system is started and shut down, the specific operation comprises the steps of starting and preparing to shut down the fuel cell power generation system each time, hydrogen is supplied and circulated after the power generation system is self-checked to normally enter an idling state, and air supply and discharge are controlled to operate for 3-300 seconds according to 5-20 times of a normal metering ratio of 1.2 and 2.0-2.5.
2. The method as claimed in claim 1, wherein the control system comprises a CAN/CAN protocol converter, a command controller, a CAN/485 converter, an air pump inverter, an air pump, a single chip microcomputer controller, a hydrogen drain solenoid valve, a hydrogen circulation pump, a CAN card, and a monitor PC, the CAN/CAN protocol converter transmits data between a CAN2 bus inside the fuel cell power generation system and a CAN1 bus of an upper controller of the fuel cell power generation system, the command controller controls the whole fuel cell power generation system to start and shut down, the air inverter receives a command from the command controller through the CAN/485 converter to control the rotation speed of the air pump, and the single chip microcomputer controller receives a command from the command controller to control the switching of the hydrogen drain solenoid valve and the hydrogen circulation pump And the monitoring PC receives and records the operation data of the command controller through the CAN card and provides manual monitoring.
3. The method as claimed in claim 2, wherein the CAN/CAN protocol converter is also called a bridge, baud rate and data format of the CAN1 network of theupper layer controller are different from those of the CAN2 network in the fuel cell power system, and the upper layer controller is required to transmit start and stop signals and transmit fault codes.
4. The method as claimed in claim 2, wherein the command controller detects the control signal of the CAN2 network to distinguish between short-time shutdown and long-time shutdown, and when the fuel cell power generation system is started, if the upper controller issues the short-time shutdown command, the command controller executes the short-time air pump and hydrogen circulation pump speed-up operation, and if the upper controller issues the long-time shutdown command, the command controller executes the long-time air pump speed-up and hydrogen circulation pump speed-up operation.
5. The method as claimed in claim 2, wherein the monitoring PC receives manual operation commands and sends operation commands to the command controller via the CAN card to activate the air pump, the hydrogen circulation pump and the hydrogen drain solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100663222A CN100361335C (en) | 2004-09-13 | 2004-09-13 | Control method for improving starting and cut-off operation of fuel battery stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100663222A CN100361335C (en) | 2004-09-13 | 2004-09-13 | Control method for improving starting and cut-off operation of fuel battery stability |
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| CN1750304A true CN1750304A (en) | 2006-03-22 |
| CN100361335C CN100361335C (en) | 2008-01-09 |
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| CNB2004100663222A Expired - Lifetime CN100361335C (en) | 2004-09-13 | 2004-09-13 | Control method for improving starting and cut-off operation of fuel battery stability |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005592A (en) * | 2010-10-18 | 2011-04-06 | 清华大学 | Reactivation method for fuel cell |
| CN102522582A (en) * | 2011-12-28 | 2012-06-27 | 新源动力股份有限公司 | Shutdown purging system and purging method for vehicle-mounted fuel cell power generation system |
| CN108695526A (en) * | 2017-04-06 | 2018-10-23 | 丰田自动车株式会社 | The method of fuel cell system and control fuel cell system |
| CN109910685A (en) * | 2019-03-25 | 2019-06-21 | 浙江吉利汽车研究院有限公司 | A kind of cold start-up method, device and equipment |
| CN111710888A (en) * | 2020-05-15 | 2020-09-25 | 山东华硕能源科技有限公司 | Start control method for vehicle-mounted fuel cell system |
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| JP3213509B2 (en) * | 1995-05-23 | 2001-10-02 | 三洋電機株式会社 | Starting method of polymer electrolyte fuel cell |
| CN1225052C (en) * | 2001-10-12 | 2005-10-26 | 上海神力科技有限公司 | Cotrol device capable of making low power proton exchange membrane fuel cell safely operate |
| CN1346759A (en) * | 2001-10-25 | 2002-05-01 | 财团法人工业技术研究院 | Electric power output control system for electric vehicle with combined fuel battery |
| JP2004022460A (en) * | 2002-06-19 | 2004-01-22 | Nissan Motor Co Ltd | Starting control apparatus of fuel cell vehicle |
| CN1475383A (en) * | 2002-08-14 | 2004-02-18 | 上海燃料电池汽车动力系统有限公司 | Fuel battery vehicle power control system |
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2004
- 2004-09-13 CN CNB2004100663222A patent/CN100361335C/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005592A (en) * | 2010-10-18 | 2011-04-06 | 清华大学 | Reactivation method for fuel cell |
| CN102005592B (en) * | 2010-10-18 | 2012-12-05 | 清华大学 | Reactivation method for fuel cell |
| CN102522582A (en) * | 2011-12-28 | 2012-06-27 | 新源动力股份有限公司 | Shutdown purging system and purging method for vehicle-mounted fuel cell power generation system |
| CN102522582B (en) * | 2011-12-28 | 2014-06-18 | 新源动力股份有限公司 | Shutdown purging system and purging method for vehicle-mounted fuel cell power generation system |
| CN108695526A (en) * | 2017-04-06 | 2018-10-23 | 丰田自动车株式会社 | The method of fuel cell system and control fuel cell system |
| CN108695526B (en) * | 2017-04-06 | 2021-06-15 | 丰田自动车株式会社 | Fuel cell system and method of controlling fuel cell system |
| CN109910685A (en) * | 2019-03-25 | 2019-06-21 | 浙江吉利汽车研究院有限公司 | A kind of cold start-up method, device and equipment |
| CN111710888A (en) * | 2020-05-15 | 2020-09-25 | 山东华硕能源科技有限公司 | Start control method for vehicle-mounted fuel cell system |
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| CN100361335C (en) | 2008-01-09 |
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