CN2733612Y - A fuel cell with dynamic control device - Google Patents
A fuel cell with dynamic control device Download PDFInfo
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- CN2733612Y CN2733612Y CNU2004200204710U CN200420020471U CN2733612Y CN 2733612 Y CN2733612 Y CN 2733612Y CN U2004200204710 U CNU2004200204710 U CN U2004200204710U CN 200420020471 U CN200420020471 U CN 200420020471U CN 2733612 Y CN2733612 Y CN 2733612Y
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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
Abstract
The utility model relates to a fuel battery with a dynamic control device, which comprises a fuel battery pile, a hydrogen cylinder, a pressure reducing valve, an air filtration device, an air compression supplying device, a water-steam separator, a water tank, a water pump, a radiator, a hydrogen cycle pump, an efficient humidifying device of a hydrogen path and an air path, a port communicated with the fuel battery pile through the hydrogen path and the air path and relative hydrogen-humidity and air-humidity and a temperature sensor; a cooling fluid path communicated with the fuel battery pile which is used for cooling the temperature sensor of the fluid, and the efficient humidifying device of the hydrogen part and the air path can dynamically control the increased dampness of the hydrogen and the air. Compared with the prior art, the fuel battery of the utility model can realize high-efficiency operation under the operating condition of being accordance with any power export requirement and the operation under the optimum operating condition, so the operating stability can be improved, and the operating life can be greatly prolonged.
Description
Technical Field
The utility model relates to a fuel cell especially relates to a fuel cell with dynamic control device.
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 plateof 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 all vehicles, ships and other vehicles, and can also be used as a portable, movable and fixed power generation device.
When used as a vehicle, a ship power system or a portable, mobile and stationary power plant, the pem fuel cell must include a stack, a hydrogen fuel supply, an air supply, a cooling heat sink, an automatic control and an electric power output. Wherein hydrogen fuel supply and air supply are indispensable. Fig. 1 shows a fuel cell power generation system, in fig. 1, 1 is a fuel cell stack, 2 is a hydrogen cylinder, 3 is a pressure reducing valve, 4 is an air filter, 5 is an air compression supply device, 6' are water-vapor separators, 7 is a water tank, 8 is a water pump, 9 is a radiator, 10 is a hydrogen circulation pump, 11 is a hydrogen humidifying device, and 12 is an air humidifying device.
At present, when the fuel cell power generation system is used as a vehicle or ship power system or a mobile or fixed power station, the stability of the fuel cell for long-term operation must be ensured.
In order to ensure the stability of the fuel cell in long-term operation, the proton exchange membrane used in the membrane electrode of the proton exchange membrane fuel cell at present needs water molecules to be kept wet in the operation process of the cell, because only hydrated protons can freely pass through the proton exchange membrane and reach the cathode end of the electrode from the anode end of the electrode to participate in electrochemical reaction. Otherwise, when a large amount of dry air or hydrogen is supplied to and leaves the fuel cell, water molecules in the proton exchange membrane are easily carried away, and protons cannot pass through the proton exchange membrane, so that the internal resistance of the electrode is increased sharply, and the performance of the cell is decreased sharply. The hydrogen or air supplied to the fuel cell generally needs to be humidified to increase the relative humidity of the hydrogen or air entering the fuel cell to prevent water loss from the proton exchange membrane.
Currently, there are two main types of humidification devices used in pem fuel cells:
1. before the dry hydrogen or air and the purified water enter the fuel cell, the dry hydrogen or air and the purified water directly collide in the humidifying device to make water molecules and hydrogen or air molecules form gaseous air and water molecules which are uniformly mixed, and after water-vapor separation, the hydrogen or air which reaches a certain relative humidity enters the fuel cell.
2. The dry hydrogen or air and the purified water are not directly contacted with each other in the humidifying device before entering the fuel cell, but are separated by a membrane which can allow water molecules to freely permeate but not allow gas molecules to permeate, when the dry hydrogen or air flows through one side of the membrane and the purified water flows through the other side of the membrane, the water molecules automatically permeate through the other side of the membrane from one side of the membrane, so that the air molecules and the water molecules are mixed to reach air with certain relative humidity. Such membranes may be proton exchange membranes such as Nafion membranes from dupont, and the like.
When the fuel cell power generation system is used as a vehicle or ship power system or a mobile or fixed power station, the output power generally has to be changed along with the change of the working condition of a driver or the electricity utilization condition of a user; especially when the fuel cell power system is used as a vehicle and ship power system, the working condition changes very frequently, and when the working condition of the vehicle and the ship changes from an idle state to a starting acceleration state, the output power of the fuel cell power generation system is required to change from small to large immediately.
The change of the output power of the fuel cell power generation system requires the flow rate of the fuel hydrogen, the air and the cooling fluid supplied to the fuel cell to change, so as to meet the requirement of adapting to the change of the power output of the fuel cell and improve the power generation efficiency of the fuel cell power generation system.
Since the fuel cell power generation system support system itself must consume a certain amount of power to operate power generation. Among the power components that are mainly consumed are: 1. a delivery device for delivering air to the fuel cell stack; 2. a hydrogen circulation pump; 3. a cooling fluid circulation delivery pump; 4. some components related to automatic control, such as a controller; and control execution components such as electromagnetic valves, cooling fans and the like.
All consumed power of the self-consumed power components accounts for 10-20% of the total output power of the whole fuel cell stack. Therefore, in order to improve the power generation efficiency of the entire fuel cell power generation system, when the output power of the fuel cell power generation system varies greatly, it is also required in principle that a dynamic response occurs in a power consuming device that supports the operation of the fuel cell power generation system itself. For some devices with larger power consumption, such as: and the air delivery pump, the hydrogen circulating pump, the cooling fluid circulating pump and the like realize dynamic control. Generally speaking, when the fuel cell power generation system is operated under the full load rated power output condition, the power consumption device with the three larger power consumption devices is also in the maximum power consumption rated operating state, and when the fuel cell power generation system is operated under the small power output condition, even under the standby or idle operating condition, the speed of the motor in the power consumption device with the three larger power consumption devices is regulated to reduce the power consumption to the minimum.
Therefore, when the output power of the fuel cell power generation system changes, the flow rates of the fuel hydrogen, the air, and the cooling fluid supplied to the fuel cell are required to change so as to satisfy the output power change. However, the two technologies of the humidification devices in the existing fuel cell power generation system have the following technical defects in realizing the relevant dynamic response control between the flow rates and the output power of the fuel hydrogen, the air and the cooling fluid supplied to the fuel cell power generation system:
1. the humidifying devices of the two technologies are generally based on the rated working temperature of the fuel cell power generation system in the rated working state and the corresponding air and hydrogen flow; the humidifying device designed according to the parameters of pressure and cooling fluid flow can ensure that the fuel cell power generation system can stably work under a rated working point for a long time, and the corresponding air and hydrogen flow and working pressure can be humidified by the humidifying device to be just suitable for the rated state of the fuel cell to work, wherein the relative humidity is about 70-95%, and the humidifying device is very suitable for high-efficiency operation and service life extension of the fuel cell.
However, when the output power of the fuel cell power generation system is low or the fuel cell power generation system is in an idle state, the flow rates of the fuel hydrogen, the air and the cooling fluid required to be supplied to the fuel cell are low, so that the over-humidification (the relative humidity reaches 100%) is easily caused when the fuel hydrogen and the air with small flow rates pass through a large fixed humidification device, and the water accumulation inside the fuel cell stack is easily caused.
2. When the output power of the fuel cell power generation system is large, even at the peak power output of short-time excess rated power, the flow rates of fuel hydrogen, air and cooling fluid supplied to the fuel cell are required to be maximized. This peak power matched high flow of hydrogen and air through a stationary humidifier often results in inadequate humidification, i.e., failure to achieve the desired relative humidity.
3. The humidifier usually depends on the waste heat of the fuel cell to reach a predetermined working temperature, and if the fuel cell power generation system does not reach the rated working temperature (about 70 ℃), the working temperature of the humidifier does not reach the rated working temperature. Generally, the degree of humidification of hydrogen and air by a humidifier is not only related to the engineering design of the humidifier, but also related to the working temperature, and the higher the working temperature is, the higher the degree of humidification is. Therefore, when the fuel cell power generation system does not reach the rated working temperature, the original hydrogen and air flow matched with the rated power are often insufficiently humidified, that is, the requirement of the rated relative humidity cannot be met.
4. The humidity of the air is also related to the temperature and humidity of the atmospheric environment. Generally, under the weather conditions of high temperature and high humidity, when air passes through the fixed humidifying device, over-humidification is easily caused; under the condition of low temperature and low humidity, the air can not be humidified enough when passing through the fixed humidifying device.
The humidifying devices of the two technologies are fixed, and cannot realize dynamic humidification adjustment on the dynamic conditions of some fuel cell power generation systems. This can result in the fuel cell stack often being in either an over-humidified or under-humidified condition, which can severely impact the performance of the fuel cell stack, and can even result in severely degraded performance and lifetime.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to overcome the above-mentioned drawbacks of the prior art, and provides a fuel cell with a dynamic control device, which can realize high-performance operation under any power output requirement.
The purpose of the utility model can be realized through the following technical scheme: a fuel cell with a dynamic control device comprises a fuel cell stack (1), a hydrogen cylinder (2), a pressure reducing valve (3), an air filter (4), an air compression supply device (5), water-vapor separators (6), (6 '), a water tank (7), a water pump (8), a radiator (9), a hydrogen circulating pump (10), a hydrogen path efficient humidifying device (11), an air path efficient humidifying device (12), a hydrogen path humidifying device adjustable speed motor (13) and an air path humidifying device adjustable speed motor (13'); the device is characterized by also comprising a hydrogen gas path-entering fuel cell stack hydrogen relative humidity sensor(14), a hydrogen gas path-entering fuel cell stack hydrogen temperature sensor (15), an air path-entering fuel cell stack air relative humidity sensor (16), an air path-entering fuel cell stack air temperature sensor (17) and a cooling fluid path-entering fuel cell stack cooling fluid temperature sensor (18); the hydrogen path high-efficiency humidifying device (11) and the air path high-efficiency humidifying device (12) can dynamically control the humidifying degree of air and hydrogen.
The allowable power output value of the fuel cell stack (1) is related to the operating temperature (18) of the fuel cell, and a relation between the allowable power output value and the value (18) can be generally found, wherein the closer the value (18) is to the rated operating temperature, the higher or closer the allowable power output is to the rated power output.
The matching relation of the power output by the fuel cell stack (1) and the hydrogen flow and the air flow of the fuel supplied to the fuel cell is calculated according to a hydrogen metering ratio of 1.2 and an air metering ratio of 2.0.
The hydrogen relative humidity (14) and the air relative humidity (16) are respectively related to hydrogen, air flow, temperature (15) and (17) and hydrogen and air pressure, the gas flow can be generally found, a relation curve of a certain relative humidity is achieved under a certain pressure and temperature condition, generally, the higher the gas flow is, the higher the temperature is, the lower the pressure is, and the higher the relative humidity value of the gas is, the more difficult the gas is to achieve; conversely, the lower the gas flow, the lower the temperature, and the higher the pressure, the easier it is for the gas to reach high relative humidity values for the gas.
The hydrogen path high-efficiency humidifying device (11) and the air path high-efficiency humidifying device(12) are rotary humidifying devices, and the higher the rotating speed is, the higher the temperature and the relative humidity of hydrogen or air entering the fuel cell are.
Through monitoring and calculating the working temperature and the output power demand of the fuel cell and the values (14), (15), (16), (17) and (18), the set control of the rotating speed of the rotating motor of the rotary humidifier is determined, and the control of the hydrogen flow and the air flow is simultaneously determined, so that the fuel cell stack can realize the following control under any working condition of power output demand: a. the output power is controlled in relation to the working temperature; b. the output power, the hydrogen flow and the air flow are controlled in a correlation manner, wherein the hydrogen flow and the air flow are respectively controlled to be 1.2 and 2.0 according to the metering ratio required by the output power so as to realize the control of the rotating speed of a hydrogen circulating pump motor and the rotating speed of an air pump motor; c. the hydrogen flow and the air flow are respectively associated and dynamically controlled with the rotating speed of a motor in 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, namely a certain value between 70% and 95%; d. and performing relevant dynamic control on the humidifying device according to the conditions of the outside weather temperature and the outside humidity.
Compared with the prior art, the utility model discloses fuel cell can both realize high-effect operation and move under best operating condition under the operating mode that any power take off required, the utility model discloses fuel cell not only can have best fuel efficiency, can improve its job stabilization nature moreover and prolongits working life greatly.
Drawings
FIG. 1 is a schematic diagram of a prior art fuel cell power generation system;
FIG. 2 is a schematic diagram of a fuel cell power generation system according to the present invention;
FIG. 3 is a graph showing the relationship between the output power of the fuel cell and the operating temperature of the fuel cell according to the present invention;
fig. 4 is a diagram showing the relationship between the water content of the relative humidity air and the temperature and pressure of the fuel cell of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
Examples
The embodiment adopts Shanghai Shenli company patent (invention patent No. 02111824.8, utility model No. 02217654.3) "a high-efficiency humidifying device for fuel cells", which has low cost and convenient operation and can be used for the high-efficiency humidifying device for fuel cells with dynamic humidifying adjustment.
The fuel cell power generation system of the present embodiment is shown in fig. 2, in which the rated output power of the fuel cell power generation system is 60KW, and the peak output is 72 KW; the rated output power of the fuel cell stack 1 is 72KW, and the peak output is 82 KW. The air conveying device 5 is a super flat air compressor driven by a brushless motor capable of adjusting frequency and speed, the air flow can be controlled by adjusting the frequency and speed of the brushless motor, the rated power of themotor is about 8KW, the control rotating speed is between 0 and 8000 rpm, and the air flow is between 0 and 7 cubic/minute.
The hydrogen circulating device 10 is a circulating compression pump driven by a brushless motor capable of adjusting frequency and speed, and the hydrogen circulating flow can also be controlled by the frequency and speed adjustment of the brushless motor. The rotary humidifier 11 which is arranged in the hydrogen gas path and can dynamically control the humidification degree can drive the inner container of the humidifier to rotate through a brushless motor with speed regulation and frequency modulation, so as to achieve the purpose of adjusting the humidification degree of the hydrogen gas.
The rotary humidifier 12 which is arranged in an air path and can dynamically control the humidification degree drives the inner container of the humidifier to rotate through a brushless motor which can adjust the frequency and the speed, so as to achieve the purpose of adjusting the humidification degree of the air, and the rotating speed of the inner containers of the two humidifiers is between about 1 and 70 revolutions per minute.
Various operating parameters in the overall fuel cell power generation system may be addressed using a central controller, such as: collecting data of pressure, temperature and humidity of hydrogen, air and cooling fluid entering the fuel cell stack and pressure, temperature and humidity of hydrogen, air and cooling fluid exiting the fuel cell stack, collecting and monitoring working voltage and current of the fuel cell stack, and obtaining a relation curve (figure 3) between output power and working temperature of the fuel cell stack; the relationship curve of the output power of the fuel cell stack and the flow rate of the hydrogen and the air is respectively calculated according to the metering ratio of the air flow of 2.0 and the metering ratio of the hydrogen of 1.2; the relationship curve of the output power of the fuel cell stack and the temperature and the flow of the cooling fluid; and the relationship curves of the hydrogen gas, the air flow rate and the temperature (including the outside temperature) (fig. 4) and the rotating speed of the rotary type humidifiers (11, 12), are programmed in advance, and PID control is carried out.
When the fuel cell power generation system is just started and the controller detects that the external temperature is low (0 ℃) and the working temperature of the fuel cell stack is low (5 ℃), the output power of the fuel cell stack is controlled to be about 20KW, at the moment, the controller controls the air pump and the hydrogen pump to drive the motor to rotate at a speed so that the air flow is about 1.0 cubic meter/minute, the total hydrogen flow is about 200 cubic liters/minute, and the hydrogen circulation flow is about 40 cubic liters/minute. The controller controls the motors of the two rotary humidifiers (11, 12) to drive the inner containers to rotate at 50 r/min according to the parameter values of the air and hydrogen flow, the temperature and the outside temperature, the relative humidity of the air and the hydrogen entering the fuel cell stack is 80%, and the fuel cell stack works stably.
When the fuel cell power generation system enters a rated working state, the working temperature is 70 ℃, and the controller detects that the external temperature is higher (35 ℃); when the working temperature of the fuel cell stack is 70 ℃, the controller allows the output power of the fuel cell stack to be 68KW, and at the moment, the controller controls the air pump and the hydrogen pump to drive the motor to rotate, so that the air flow is about 3.5 cubic meters per minute, the total flow of hydrogen is 700 liters per minute, and the circulation flow of hydrogen is 140 liters per minute. The controller controls the motors of thetwo rotary humidifiers (11, 12) to drive the inner container to rotate at a speed of 10 r/min according to the parameter values of the air and hydrogen flow, the temperature and the outside temperature.
The relative humidity of the air and the hydrogen entering the fuel cell stack is still 80%, and the fuel cell stack works stably.
Claims (4)
1. A fuel cell with a dynamic control device comprises a fuel cell stack (1), a hydrogen cylinder (2), a pressure reducing valve (3), an air filter (4), an air compression supply device (5), water-vapor separators (6), (6 '), a water tank (7), a water pump (8), a radiator (9), a hydrogen circulating pump (10), a hydrogen path efficient humidifying device (11), an air path efficient humidifying device (12), a hydrogen path humidifying device adjustable speed motor (13) and an air path humidifying device adjustable speed motor (13'); the device is characterized by also comprising a hydrogen gas path-entering fuel cell stack hydrogen relative humidity sensor (14), a hydrogen gas path-entering fuel cell stack hydrogen temperature sensor (15), an air path-entering fuel cell stack air relative humidity sensor (16), an air path-entering fuel cell stack air temperature sensor (17) and a cooling fluid path-entering fuel cell stack cooling fluid temperature sensor (18); the hydrogen path high-efficiency humidifying device (11) and the air path high-efficiency humidifying device (12) can dynamically control the humidifying degree of air and hydrogen.
2. A fuel cell with a dynamic control device according to claim 1, characterized in that the matching of the power output by the fuel cell stack (1) with the hydrogen flow rate of the fuel and the air flow rate supplied to the fuel cell is calculated as 1.2 for the hydrogen metering ratio and2.0 for the air metering ratio.
3. The fuel cell with the dynamic control device according to claim 1, wherein the hydrogen-path efficient humidification device (11) and the air-path efficient humidification device (12) are rotary humidification devices.
4. The fuel cell with dynamic control device of claim 1, wherein the fuel cell stack is realized under any power output requirement by monitoring and calculating the operating temperature and output power requirement of the fuel cell and the values of (14), (15), (16), (17) and (18), determining the set control of the rotating speed of the rotating motor of the rotary humidifier and simultaneously determining the control of the hydrogen flow and the air flow, and the fuel cell stack is realized under any power output requirement condition: a. the output power is controlled in relation to the working temperature; b. the output power, the hydrogen flow and the air flow are controlled in a correlation manner, wherein the hydrogen flow and the air flow are respectively controlled to be 1.2 and 2.0 according to the metering ratio required by the output power so as to realize the control of the rotating speed of a hydrogen circulating pump motor and the rotating speed of an air pump motor; c. the hydrogen flow and the air flow are respectively associated and dynamically controlled with the rotating speed of a motor in 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, namely a certain value between 70% and 95%; d. and performing relevant dynamic control on the humidifying device according to the conditions of the outside weather temperature and the outside humidity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200204710U CN2733612Y (en) | 2004-02-27 | 2004-02-27 | A fuel cell with dynamic control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2004200204710U CN2733612Y (en) | 2004-02-27 | 2004-02-27 | A fuel cell with dynamic control device |
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| CN2733612Y true CN2733612Y (en) | 2005-10-12 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388542C (en) * | 2004-02-27 | 2008-05-14 | 上海神力科技有限公司 | Fuel cell with dynamic control device |
| CN101127402B (en) * | 2006-06-09 | 2010-09-15 | 通用汽车环球科技运作公司 | System level adjustments for increasing stack inlet RH |
| CN101897067A (en) * | 2007-12-12 | 2010-11-24 | Lg化学株式会社 | Method of operating fuel cell with high power and high power fuel cell system |
| CN101669243B (en) * | 2007-04-27 | 2013-11-27 | 丰田自动车株式会社 | Fuel cell system |
| CN108177539A (en) * | 2017-12-28 | 2018-06-19 | 潍柴动力股份有限公司 | The air compression system and control method of a kind of fuel cell electric vehicle |
| CN112072143A (en) * | 2020-09-07 | 2020-12-11 | 中国第一汽车股份有限公司 | Dynamic control method of fuel cell system |
| CN115207419A (en) * | 2022-08-01 | 2022-10-18 | 上海杰宁新能源科技发展有限公司 | Embedded thermal management control method and system for fuel cell |
-
2004
- 2004-02-27 CN CNU2004200204710U patent/CN2733612Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388542C (en) * | 2004-02-27 | 2008-05-14 | 上海神力科技有限公司 | Fuel cell with dynamic control device |
| CN101127402B (en) * | 2006-06-09 | 2010-09-15 | 通用汽车环球科技运作公司 | System level adjustments for increasing stack inlet RH |
| CN101669243B (en) * | 2007-04-27 | 2013-11-27 | 丰田自动车株式会社 | Fuel cell system |
| CN101897067A (en) * | 2007-12-12 | 2010-11-24 | Lg化学株式会社 | Method of operating fuel cell with high power and high power fuel cell system |
| CN108177539A (en) * | 2017-12-28 | 2018-06-19 | 潍柴动力股份有限公司 | The air compression system and control method of a kind of fuel cell electric vehicle |
| CN112072143A (en) * | 2020-09-07 | 2020-12-11 | 中国第一汽车股份有限公司 | Dynamic control method of fuel cell system |
| CN112072143B (en) * | 2020-09-07 | 2022-02-18 | 中国第一汽车股份有限公司 | Dynamic control method of fuel cell system |
| CN115207419A (en) * | 2022-08-01 | 2022-10-18 | 上海杰宁新能源科技发展有限公司 | Embedded thermal management control method and system for fuel cell |
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