CN108417860A - A kind of fuel cell power generation efficiency synthesis lifting system and control method - Google Patents
A kind of fuel cell power generation efficiency synthesis lifting system and control method Download PDFInfo
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- CN108417860A CN108417860A CN201810266098.3A CN201810266098A CN108417860A CN 108417860 A CN108417860 A CN 108417860A CN 201810266098 A CN201810266098 A CN 201810266098A CN 108417860 A CN108417860 A CN 108417860A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04358—Temperature; Ambient temperature of the coolant
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
- H01M8/04388—Pressure; Ambient pressure; Flow of anode reactants at the inlet or inside the fuel cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a kind of fuel cell power generation efficiency synthesis lifting system and control methods, including：Unidirectional solenoid valve is connected between fuel cell control unit and deionizater, deionizater is connected with fuel cell, fuel cell is connect with temperature control electromagnetic, temperature control electromagnetic outlet is separately connected bidirectional electromagnetic valve and radiator, bidirectional electromagnetic valve is connected with radiator, and bi-directional electromagnetic valve outlet is separately connected deionizater and adiabatic accumulator；Temperature sensor is set between fuel cell and temperature control electromagnetic；Advantageous effect of the present invention：Since the temperature of coolant liquid is not much different with the required suitable temperature of fuel cell (T0) when startup, the polarization phenomena of fuel cell are significantly alleviated, the generating efficiency of fuel cell is made to improve.
Description
Technical field
The present invention relates to fuel cell car designs and manufacturing field more particularly to a kind of fuel cell power generation efficiency to integrate
Lifting system and control method.
Background technology
With becoming increasingly conspicuous for environmental problem and energy problem, new-energy automobile becomes the certainty side of future automobile development
To.Fuel cell car is more environmentally friendly new-energy automobile, and longer than pure electric automobile course continuation mileage, needs to mend
The time for filling the energy is about the sixtieth of pure electric automobile.Its free of contamination characteristic and energy conversion efficiency are internal combustion engines
Vehicle is incomparable.Fuel cell system generating efficiency is high, can be more fully utilized to enable amount, for alleviating society instantly
The energy shortage problem of meeting has far reaching significance.
The thermoelectric conversion efficiency theory of fuel cell system up to 85%~90%, but due to fuel cell at work by
Polarized limitation, the actual power efficiency of fuel cell is in the range of 40%~60% at present.Therefore the hair of fuel cell
Electrical efficiency still has larger room for promotion.Temperature factor influences maximum to fuel cell system generating efficiency, in normal work
Requirement of the fuel cell system to temperature is also very stringent, therefore hydro-thermal administrative skill is most important.Fuel cell system at present
Cold start-up problem is big, and at the beginning of startup, coolant temperature is too low, causes generating efficiency relatively low.It is unfavorable if flowing through fuel cell
Optimum Working is rapidly entered in fuel cell.The double source of the fuel cell and lithium battery that are used on current fuel-cell vehicle
If powering mode increases power consumption, and the high-voltage electricity of high current is unfavorable for circuit with the mode of high current heated cooling fluid
Stablize, increases the burden of lithium battery.
Invention content
The purpose of the present invention is exactly to solve the above-mentioned problems, it is proposed that a kind of fuel cell power generation efficiency synthesis promotion system
System and control method improve the transformation efficiency of hydrogen fuel in the case where ensureing battery performance situation, realize and use less hydrogen, row
Sail more mileages.
To achieve the above object, concrete scheme of the invention is as follows：
The first object of the present invention is to provide a kind of fuel cell power generation efficiency synthesis lifting system, including：Fuel cell
Control unit, adiabatic accumulator, deionizater, Unidirectional solenoid valve, temperature control electromagnetic, bidirectional electromagnetic valve and radiator；
Unidirectional solenoid valve, the deionizater and fuel are connected between the fuel cell control unit and deionizater
Battery connects, and the fuel cell connect with temperature control electromagnetic, the temperature control electromagnetic export be separately connected bidirectional electromagnetic valve with
Radiator, the bidirectional electromagnetic valve are connected with radiator, and the bi-directional electromagnetic valve outlet is separately connected deionizater and adiabatic storage
It can device；Temperature sensor is set between the fuel cell and temperature control electromagnetic；
The fuel cell control unit judges to flow through the temperature of the coolant liquid of fuel cell, if temperature has exceeded setting
Fuel cell needed for temperature, then control coolant liquid and flow to after radiator is radiated and be re-circulated into fuel cell.
Further, turbine air compressor and frequency conversion are sequentially connected in series between the fuel cell and fuel cell control unit
Device；Air flow meter is connected at the air inlet of the turbine air compressor.
Further, the first water pump is set between the fuel cell and temperature control electromagnetic, in the first water pump and temperature control
Temperature sensor is installed, the temperature sensor is connect with fuel cell control unit on the pipeline of solenoid valve.
Further, the second water pump is set between the bidirectional electromagnetic valve and adiabatic accumulator.
Further, the temperature control electromagnetic has two outlets A, B, and temperature control electromagnetic is exported by A and bidirectional electromagnetic valve
Connection is exported by B and is connect with radiator.
Further, the bidirectional electromagnetic valve has two outlets A, C, and bidirectional electromagnetic valve is exported by C and deionizater
Connection is exported by A and is connect with the second water pump.
Further, the Unidirectional solenoid valve, temperature control electromagnetic and bidirectional electromagnetic valve connect with fuel cell control unit
It connects.
The second object of the present invention is to provide a kind of control method of fuel cell power generation efficiency synthesis lifting system, packet
It includes：
When fuel cell is started to work, fuel cell control unit controls Unidirectional solenoid valve and opens, in adiabatic accumulator
Coolant liquid enters fuel cell by deionizater；
The coolant liquid for flowing out fuel cell is sent to temperature control electromagnetic, coolant liquid water temperature signal is passed to combustion by temperature sensor
Expect that battery control unit, fuel cell control unit are judged according to the water temperature signal received；
If coolant liquid water temperature is less than the suitable temperature set by fuel cell, fuel cell control unit control temperature
Control electromagnetic valve outlet so that coolant liquid directly returns to fuel cell by bidirectional electromagnetic valve and deionizater and completes cycle；
If coolant liquid water temperature is more than the suitable temperature set by fuel cell, fuel cell control unit control control
Temperature control electromagnetic exports so that coolant liquid flows to radiator, is returned to using bidirectional electromagnetic valve and deionizater after completing heat dissipation
Fuel cell completes cycle.
Further, when not needing operation of fuel cells, fuel cell control unit controls bidirectional electromagnetic valve and thermal insulation
Accumulator is connected to, and coolant liquid is stored into adiabatic accumulator；Simultaneously close off Unidirectional solenoid valve.
Further, the tail gas that fuel cell generates drives air compressor machine compressed air by turbine air compressor；Air mass flow
Meter acquires air mass flow in real time, and signal is passed to fuel cell control unit；
If tail gas is insufficient for the required energy of compressed air, fuel cell control unit controls frequency converter and changes
The speed of turbine air compressor motor rotation, providing enough oxygen makes the hydrogen in fuel cell react more complete.
Beneficial effects of the present invention：
1, due to the temperature of coolant liquid when startup and the required suitable temperature (T of fuel cell0) be not much different, greatly
The polarization phenomena for alleviating fuel cell of amplitude make the generating efficiency of fuel cell improve.And add due to eliminating high current
Heat, the stabilization of circuit alleviate the burden of lithium battery.
2, the system can utilize integrated management to oxygen and tail gas energy, to reach best capacity usage ratio,
Fuel cell power generation efficiency is set to be improved.
Description of the drawings
Fig. 1 is fuel cell power generation efficiency synthesis lift system structural representation of the present invention；
In figure, 1 adiabatic accumulator, 2 Unidirectional solenoid valves, 3 deionizaters, 4 fuel cells, 5 first water pumps, 6 temperature control electromagnetism
Valve, 7 radiators, 8 bidirectional electromagnetic valves, 9 second water pumps, 10 turbine air compressors, 11 air flow meters, 12 frequency converters, 13 fuel electricity
Pond control unit (FCU), 14 temperature sensors.
Specific implementation mode：
The present invention is described in detail below in conjunction with the accompanying drawings：
The invention discloses a kind of fuel cell power generation efficiency to integrate lifting system, including：One adiabatic accumulator 1, absolutely
Hot accumulator 1 connects a Unidirectional solenoid valve 2, and Unidirectional solenoid valve 2 connects deionizater 3, and deionizater 3 connects fuel cell 4,
Fuel cell 4 connects the first water pump 5, and the first water pump 5 connects a temperature control electromagnetic 6；In the first water pump 5 and temperature control electromagnetic 6
Pipeline on temperature sensor 14 is installed, temperature sensor 14 passes through electric wiring and fuel cell control unit (FCU) 13
D input pins be connected.There are two outlets for temperature control electromagnetic, pass through the outlets A and bidirectional electromagnetic valve 8；Connection heat dissipation is exported by B
Device 7, radiator 7 and bidirectional electromagnetic valve 8.There are two outlets for bidirectional electromagnetic valve 8, pass through the outlets C and deionizater 3；It is exported by A
The second water pump 9 is connected, the second water pump 9 connects adiabatic accumulator 1.
Fuel cell 4 connects a turbine air compressor, and turbine air compressor is controlled by frequency converter 12, and frequency converter 12 passes through electricity
Gas circuit is connected with the I output pins of fuel cell control unit (FCU) 13.A sky is connected at the air inlet of turbine air compressor 10
Air-flow gauge 11, air flow meter 11 are connected with air, while air flow meter 11 passes through the H input pipes of electric wiring and FCU
Foot is connected.
Unidirectional solenoid valve 2, temperature control electromagnetic 6 and bidirectional electromagnetic valve 8 are connect with fuel cell control unit 13.
The invention discloses the control methods that fuel cell power generation efficiency integrates lifting system, specifically include：
When fuel cell 4 is started to work, the G pins output high level control Unidirectional solenoid valve 2 of FCU13 is opened, adiabatic
Coolant liquid in accumulator 1 enters by deionizater 3 in coolant circulation body system, flows through fuel cell (due at this time
Coolant liquid is to participate in the coolant liquid of cycle the last time of storage, so temperature is more suitble to operation of fuel cells), pass through the first water pump
5, coolant liquid is sent to temperature control electromagnetic 6, while water temperature signal can be passed to the D pins of FCU by temperature sensor 14, FCU judges
If water temperature is less than the normal working temperature (T of fuel cell 40), then it exports low level control temperature control electromagnetic and opens temperature
A mouthfuls of solenoid valve is controlled, directly returning to fuel cell by bidirectional electromagnetic valve 8 and deionizater 3 completes cycle.If temperature T>T0, beat
Flow direction radiator 7 can then be controlled by holding the B mouths of temperature control electromagnetic 6, be completed after radiating using bidirectional electromagnetic valve 8 and deionization
Device 3 returns to fuel cell 4, completes cycle.After not needing fuel cell 4 and working, the F pins of FCU export high level, two-way
Solenoid valve 8 closes C mouthfuls, opens A mouthfuls, by the second water pump 9, water is stored into adiabatic accumulator 1.Meanwhile the G pins of FCU
Low level is exported, Unidirectional solenoid valve 2 is closed.
Fuel cell 4 produces the tail gas with energy, makes it through turbine air compressor 10, drives air compressor machine compression empty
Gas.Air flow meter 11 acquires air mass flow in real time, and signal, which is passed through H pins, is passed to FCU.
If tail gas is insufficient for the required energy of compressed air, FCU controls frequency converter by I pins and changes turbine
The speed of the motor rotation of air compressor machine 10, providing enough oxygen makes the hydrogen in fuel cell react more complete.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of fuel cell power generation efficiency integrates lifting system, characterized in that including：Fuel cell control unit, adiabatic storage
It can device, deionizater, Unidirectional solenoid valve, temperature control electromagnetic, bidirectional electromagnetic valve and radiator；
Unidirectional solenoid valve, the deionizater and fuel cell are connected between the fuel cell control unit and deionizater
Connection, the fuel cell are connect with temperature control electromagnetic, and the temperature control electromagnetic outlet is separately connected bidirectional electromagnetic valve and heat dissipation
Device, the bidirectional electromagnetic valve are connected with radiator, and the bi-directional electromagnetic valve outlet is separately connected deionizater and adiabatic accumulator；
Temperature sensor is set between the fuel cell and temperature control electromagnetic；
The fuel cell control unit judges to flow through the temperature of the coolant liquid of fuel cell, if temperature has exceeded the combustion of setting
Expect the temperature needed for battery, then controls coolant liquid and flow to after radiator is radiated and be re-circulated into fuel cell.
2. a kind of fuel cell power generation efficiency as described in claim 1 integrates lifting system, characterized in that in fuel electricity
Turbine air compressor and frequency converter are sequentially connected in series between pond and fuel cell control unit；Connect at the air inlet of the turbine air compressor
Connect air flow meter.
3. a kind of fuel cell power generation efficiency as described in claim 1 integrates lifting system, characterized in that in fuel electricity
First water pump is set between pond and temperature control electromagnetic, temperature sensing is installed on the first water pump and the pipeline of temperature control electromagnetic
Device, the temperature sensor are connect with fuel cell control unit.
4. a kind of fuel cell power generation efficiency as described in claim 1 integrates lifting system, characterized in that in the two-way electricity
The second water pump is set between magnet valve and adiabatic accumulator.
5. a kind of fuel cell power generation efficiency as described in claim 1 integrates lifting system, characterized in that the temperature control electromagnetism
Valve has two outlets A, B, temperature control electromagnetic to export by A and connect with bidirectional electromagnetic valve, export by B and connect with radiator.
6. a kind of fuel cell power generation efficiency as described in claim 1 integrates lifting system, characterized in that the two-way electricity
Magnet valve has two outlets A, C, bidirectional electromagnetic valve to export by C and connect with deionizater, export by A and connect with the second water pump.
7. a kind of fuel cell power generation efficiency as described in claim 1 integrates lifting system, characterized in that the unidirectional electromagnetism
Valve, temperature control electromagnetic and bidirectional electromagnetic valve are connect with fuel cell control unit.
8. a kind of control method of fuel cell power generation efficiency synthesis lifting system as described in claim 1, characterized in that packet
It includes：
When fuel cell is started to work, fuel cell control unit controls Unidirectional solenoid valve and opens, the cooling in adiabatic accumulator
Liquid enters fuel cell by deionizater；
The coolant liquid for flowing out fuel cell is sent to temperature control electromagnetic, coolant liquid water temperature signal is passed to fuel electricity by temperature sensor
Pond control unit, fuel cell control unit are judged according to the water temperature signal received；
If coolant liquid water temperature is less than the suitable temperature set by fuel cell, fuel cell control unit controls temperature control electricity
Magnet valve exports so that coolant liquid directly returns to fuel cell by bidirectional electromagnetic valve and deionizater and completes cycle；
If coolant liquid water temperature is more than the suitable temperature set by fuel cell, fuel cell control unit control control temperature control
Electromagnetic valve outlet so that coolant liquid flows to radiator, completes to return to fuel using bidirectional electromagnetic valve and deionizater after radiating
Battery completes cycle.
9. a kind of control method of fuel cell power generation efficiency synthesis lifting system as claimed in claim 8, characterized in that
When not needing operation of fuel cells, fuel cell control unit controls bidirectional electromagnetic valve and is connected to adiabatic accumulator, by coolant liquid
It is stored into adiabatic accumulator；Simultaneously close off Unidirectional solenoid valve.
10. a kind of control method of fuel cell power generation efficiency synthesis lifting system as claimed in claim 8, characterized in that
The tail gas that fuel cell generates drives air compressor machine compressed air by turbine air compressor；Air flow meter acquires air stream in real time
Amount, fuel cell control unit is passed to by signal；
If tail gas is insufficient for the required energy of compressed air, fuel cell control unit controls frequency converter and changes turbine
The speed of air compressor motor rotation, providing enough oxygen makes the hydrogen in fuel cell react more complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810266098.3A CN108417860A (en) | 2018-03-28 | 2018-03-28 | A kind of fuel cell power generation efficiency synthesis lifting system and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810266098.3A CN108417860A (en) | 2018-03-28 | 2018-03-28 | A kind of fuel cell power generation efficiency synthesis lifting system and control method |
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| CN108417860A true CN108417860A (en) | 2018-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634212A (en) * | 2020-05-14 | 2020-09-08 | 东风汽车集团有限公司 | Fuel cell automobile thermal management system, method, storage medium and automobile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04342961A (en) * | 1991-05-20 | 1992-11-30 | Ishikawajima Harima Heavy Ind Co Ltd | Fuel cell power generating facility |
| CN1529376A (en) * | 2003-10-10 | 2004-09-15 | 清华大学 | Two-way circulating controlled fuel cell heat management system |
| CN1815786A (en) * | 2005-02-01 | 2006-08-09 | 上海神力科技有限公司 | Fuel-cell generating system capable of starting and operating in low-temperature environment |
| CN208127317U (en) * | 2018-03-28 | 2018-11-20 | 中通客车控股股份有限公司 | A kind of comprehensive lifting system of fuel cell power generation efficiency and fuel cell car |
-
2018
- 2018-03-28 CN CN201810266098.3A patent/CN108417860A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04342961A (en) * | 1991-05-20 | 1992-11-30 | Ishikawajima Harima Heavy Ind Co Ltd | Fuel cell power generating facility |
| CN1529376A (en) * | 2003-10-10 | 2004-09-15 | 清华大学 | Two-way circulating controlled fuel cell heat management system |
| CN1815786A (en) * | 2005-02-01 | 2006-08-09 | 上海神力科技有限公司 | Fuel-cell generating system capable of starting and operating in low-temperature environment |
| CN208127317U (en) * | 2018-03-28 | 2018-11-20 | 中通客车控股股份有限公司 | A kind of comprehensive lifting system of fuel cell power generation efficiency and fuel cell car |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634212A (en) * | 2020-05-14 | 2020-09-08 | 东风汽车集团有限公司 | Fuel cell automobile thermal management system, method, storage medium and automobile |
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