CN112290063A - System and method for controlling output flow of fuel cell air compressor - Google Patents
System and method for controlling output flow of fuel cell air compressor Download PDFInfo
- Publication number
- CN112290063A CN112290063A CN202011094906.6A CN202011094906A CN112290063A CN 112290063 A CN112290063 A CN 112290063A CN 202011094906 A CN202011094906 A CN 202011094906A CN 112290063 A CN112290063 A CN 112290063A
- Authority
- CN
- China
- Prior art keywords
- air compressor
- stop valve
- flow
- rotating speed
- fuel cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
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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
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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
- H01M8/04425—Pressure; Ambient pressure; Flow at auxiliary devices, e.g. reformers, compressors, burners
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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
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04776—Pressure; Flow at auxiliary devices, e.g. reformer, compressor, burner
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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 invention provides a system and a method for controlling output flow of a fuel cell air compressor, which comprises a flow meter, a stop valve 1, a stop valve 2 and the air compressor, wherein the stop valve 1 is connected with the air compressor in parallel, the output end of the flow meter is connected with the input end of the air compressor, and the output end of the air compressor is connected with the input end of the stop valve 2.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a system and a method for controlling the output flow of an air compressor of a fuel cell.
Background
The hydrogen energy is regarded as the ultimate form of human energy due to the characteristics of zero emission, no pollution and the like, and is popularized and applied to the fields of fuel cells, fuel cell automobiles and the like to a certain extent at present.
Currently Proton Exchange Membrane Fuel Cells (PEMFCs) are mainstream fuel cells for vehicles. PEMFCs require only hydrogen and oxygen in the proper state to generate electricity.
The existing air quantity control scheme generally controls the oxygen quantity flowing through the PEMFC by controlling the rotating speed of an air compressor, and cannot meet the regulation requirement of the stack air input under all operating states of the fuel cell. In order to solve the problem, a set of device is added on the air compressor to control the output quantity of the air compressor at any rotating speed.
Disclosure of Invention
The present invention provides a system and method for controlling the output flow of an air compressor of a fuel cell.
The utility model provides a system for control fuel cell air compressor machine output flow, includes flowmeter, stop valve 1, stop valve 2 and air compressor machine, with stop valve 1 with the air compressor machine is parallelly connected, the input of air compressor machine is connected to the output of flowmeter, and the input of stop valve 2 is connected to the output of air compressor machine.
Further, the air compressor receives a flow demand from the fuel cell system FCU.
Further, the air compressor reads the air compressor inlet flow meter.
A method for controlling the output flow of a fuel cell air compressor is applied to any one of the systems for controlling the output flow of the fuel cell air compressor, and comprises the following steps:
step 1, an air compressor receives a required flow from a fuel cell system FCU;
step 2, the air compressor reads the flow of an inlet flowmeter of the air compressor;
step 3, reading the opening angles of the stop valve 1 and the stop valve 2 and the rotating speed of the air compressor by the air compressor;
step 4, when the required flow is equal to the inlet flow, keeping the angles of the stop valve 1 and the stop valve 2 and the rotating speed of the air compressor;
step 5, when the required flow is larger than the flow of the inlet flowmeter, reducing the opening angle of the stop valve 1, and increasing the opening angle of the stop valve 2 until the stop valve 1 is completely closed and the stop valve 2 is completely opened; then, the rotating speed of the air compressor is increased until the inlet flow of the air compressor is equal to the required flow;
step 6, when the required flow is smaller than the flow of the inlet flowmeter, if the rotating speed of the air compressor is larger than the lowest rotating speed, reducing the rotating speed of the air compressor; if the rotating speed of the air compressor is the lowest rotating speed, the inlet flow is still larger than the required flow, the opening angle of the stop valve 1 is increased, and the opening angle of the stop valve 2 is reduced until the inlet flow is equal to the required flow.
The technical scheme provided by the invention has the beneficial effects that: a connecting pipeline and a stop valve 1 are additionally arranged between the outlet and the inlet of the air compressor, a stop valve 2 is additionally arranged at the tail end of the outlet of the air compressor, and the integral output flow can be controlled by adjusting the opening angles of the two throttle valves.
Drawings
FIG. 1 is a block diagram of a system and method for controlling the output flow of a fuel cell air compressor according to the present invention;
fig. 2 is a logic diagram of a system and method for controlling output flow of an air compressor of a fuel cell according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the present invention provides a system and method for controlling output flow of an air compressor of a fuel cell.
The utility model provides a system for control fuel cell air compressor machine output flow, includes flowmeter, stop valve 1, stop valve 2 and air compressor machine, with stop valve 1 with the air compressor machine is parallelly connected, the input of air compressor machine is connected to the output of flowmeter, and the input of stop valve 2 is connected to the output of air compressor machine.
The air compressor receives a flow demand from the fuel cell system FCU.
The air compressor reads the air compressor inlet flow meter.
Referring to fig. 2, a method for controlling the output flow of a fuel cell air compressor is applied to any one of the systems for controlling the output flow of a fuel cell air compressor, and includes the following steps:
step 1, an air compressor receives a required flow from a fuel cell system FCU;
step 2, the air compressor reads the flow of an inlet flowmeter of the air compressor;
step 3, reading the opening angles of the stop valve 1 and the stop valve 2 and the rotating speed of the air compressor by the air compressor;
step 4, when the required flow is equal to the inlet flow, keeping the angles of the stop valve 1 and the stop valve 2 and the rotating speed of the air compressor;
step 5, when the required flow is larger than the flow of the inlet flowmeter, reducing the opening angle of the stop valve 1, and increasing the opening angle of the stop valve 2 until the stop valve 1 is completely closed and the stop valve 2 is completely opened; then, the rotating speed of the air compressor is increased until the inlet flow of the air compressor is equal to the required flow;
step 6, when the required flow is smaller than the flow of the inlet flowmeter, if the rotating speed of the air compressor is larger than the lowest rotating speed, reducing the rotating speed of the air compressor; if the rotating speed of the air compressor is the lowest rotating speed, the inlet flow is still larger than the required flow, the opening angle of the stop valve 1 is increased, and the opening angle of the stop valve 2 is reduced until the inlet flow is equal to the required flow.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides a system for control fuel cell air compressor machine output flow, its characterized in that, includes flowmeter, stop valve 1, stop valve 2 and air compressor machine, with stop valve 1 with the air compressor machine is parallelly connected, the input of air compressor machine is connected to the output of flowmeter, and the input of stop valve 2 is connected to the output of air compressor machine.
2. The system of claim 1 wherein the air compressor receives a flow demand from the fuel cell system FCU.
3. The system of claim 1 wherein the air compressor reads an air compressor inlet flow meter.
4. A method for controlling the output flow of a fuel cell air compressor, which is applied to the system for controlling the output flow of the fuel cell air compressor as claimed in any one of claims 1 to 3, and is characterized by comprising the following steps:
step 1, an air compressor receives a required flow from a fuel cell system FCU;
step 2, the air compressor reads the flow of an inlet flowmeter of the air compressor;
step 3, reading the opening angles of the stop valve 1 and the stop valve 2 and the rotating speed of the air compressor by the air compressor;
step 4, when the required flow is equal to the inlet flow, keeping the angles of the stop valve 1 and the stop valve 2 and the rotating speed of the air compressor;
step 5, when the required flow is larger than the flow of the inlet flowmeter, reducing the opening angle of the stop valve 1, and increasing the opening angle of the stop valve 2 until the stop valve 1 is completely closed and the stop valve 2 is completely opened; then, the rotating speed of the air compressor is increased until the inlet flow of the air compressor is equal to the required flow;
step 6, when the required flow is smaller than the flow of the inlet flowmeter, if the rotating speed of the air compressor is larger than the lowest rotating speed, reducing the rotating speed of the air compressor; if the rotating speed of the air compressor is the lowest rotating speed, the inlet flow is still larger than the required flow, the opening angle of the stop valve 1 is increased, and the opening angle of the stop valve 2 is reduced until the inlet flow is equal to the required flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094906.6A CN112290063A (en) | 2020-10-14 | 2020-10-14 | System and method for controlling output flow of fuel cell air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094906.6A CN112290063A (en) | 2020-10-14 | 2020-10-14 | System and method for controlling output flow of fuel cell air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112290063A true CN112290063A (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011094906.6A Pending CN112290063A (en) | 2020-10-14 | 2020-10-14 | System and method for controlling output flow of fuel cell air compressor |
Country Status (1)
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| CN (1) | CN112290063A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170186A (en) * | 2006-10-25 | 2008-04-30 | 新源动力股份有限公司 | An adjusting system for air supply of fuel battery system |
| WO2010085222A2 (en) * | 2009-01-22 | 2010-07-29 | Utc Power Corporation | Preventing air intrusion into hydrogen-stabilized fuel cells during shutdown |
| JP2015219970A (en) * | 2014-05-14 | 2015-12-07 | トヨタ自動車株式会社 | Fuel battery system |
| CN111092246A (en) * | 2019-12-30 | 2020-05-01 | 上海神力科技有限公司 | Fuel cell system starting method |
-
2020
- 2020-10-14 CN CN202011094906.6A patent/CN112290063A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170186A (en) * | 2006-10-25 | 2008-04-30 | 新源动力股份有限公司 | An adjusting system for air supply of fuel battery system |
| WO2010085222A2 (en) * | 2009-01-22 | 2010-07-29 | Utc Power Corporation | Preventing air intrusion into hydrogen-stabilized fuel cells during shutdown |
| JP2015219970A (en) * | 2014-05-14 | 2015-12-07 | トヨタ自動車株式会社 | Fuel battery system |
| CN111092246A (en) * | 2019-12-30 | 2020-05-01 | 上海神力科技有限公司 | Fuel cell system starting method |
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Application publication date: 20210129 |