CN114430055A - Active fuel cell system and control method thereof - Google Patents
Active fuel cell system and control method thereof Download PDFInfo
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- CN114430055A CN114430055A CN202210354451.XA CN202210354451A CN114430055A CN 114430055 A CN114430055 A CN 114430055A CN 202210354451 A CN202210354451 A CN 202210354451A CN 114430055 A CN114430055 A CN 114430055A
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- fuel cell
- component
- energy storage
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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
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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
- 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
Abstract
The invention provides an active fuel cell system and a control method thereof, comprising a control device 5 and four sub-components: the energy storage component 1, the energy consumption component 2, the power generation component 3 and the power conversion component 4, and the control device 5 is respectively connected with the four sub-components to control the four sub-components. The invention also provides a control method based on the active fuel cell system, and the control device 5 controls the energy storage component 1 to store energy when receiving an energy storage instruction, controls the energy storage component 1 to provide electric energy for the energy consumption component 2, and drives the power conversion component 4 to convert power output. The invention realizes that the fuel cell system is changed into an independent energy device from a power generation device needing external matching by integrating the energy storage device in the fuel cell system, and is beneficial to the integrated architecture integration, control integration and integrated design of the energy device.
Description
Technical Field
The invention belongs to the field of fuel cells, and particularly relates to an active fuel cell system and a control method thereof.
Background
The fuel cell automobile is a new energy automobile with wide development prospect, and has the advantages of short hydrogenation time and long driving range. The existing fuel cell system usually comprises a fuel cell stack and peripheral hydrogen, air, cooling and other component systems, wherein the theoretical voltage of a single cell unit in the stack is 1.23V, and the high-power output is usually realized by connecting hundreds of cells in parallel. When the fuel cell system is started, the external energy is required to be provided to drive the air compressor, the water pump and the hydrogen injection valve to realize the hydrogen-oxygen reaction power generation output after the supply of hydrogen and oxygen is realized, and the functional requirements are not considered in the design of the conventional fuel cell system, so that the conventional fuel cell system cannot independently work in testing, production, whole vehicle integration and various application scenes, depends on external matching, and is also not favorable for realizing the integration and integrated design of a fuel cell energy device. Therefore, the present invention proposes the concept of an active fuel cell system and a power control unit (AFPCU) thereof, and realizes system integration, control and application from the perspective of an energy device.
Disclosure of Invention
The invention realizes the transformation of the fuel cell system from a dependent non-independent power generation device to an active fuel cell system and an independent energy device. The invention provides an active fuel cell system and a control method thereof, which realize that the fuel cell system is changed into an independent energy device from a power generation device needing external matching by integrating an energy storage device in the fuel cell system, and are beneficial to the integrated architecture integration, control integration and integrated design of the energy device.
The invention provides an active fuel cell system, comprising a control device 5 and four sub-components: an energy storage component 1, an energy consumption component 2, a power generation component 3, a power conversion component 4, the energy storage component 1 being configured for energy storage; specifically, the energy storage device may be, for example, a lithium battery, a super capacitor, or the like; the energy consumption component 2 is configured to consume the energy stored in the energy storage component 1 and provide the required reactant to the power generation component 3, such as an air compressor to provide air by consuming electric energy, a water pump to consume electric energy to drive a cooling liquid/water circulation, a hydrogen injection valve to consume electric energy to provide high-pressure hydrogen, and the like; the power generation component 3 is configured to generate electric energy by utilizing the electrochemical reaction of air and fuel, such as a hydrogen fuel cell stack, and provide a place for the electrochemical reaction of air and hydrogen and generate electric energy; the power conversion part 4 is configured to convert the direct current generated by the power generation part 3 into various power forms of direct current or alternating current required by devices and parts; the control device 5 is configured to be connected with the four sub-components respectively, and controls the four sub-components.
Specifically, the energy storage component 1 includes a battery or a capacitive energy storage component. For example, the energy storage component can be a lithium battery, a super capacitor and the like.
Specifically, the energy consumption component 2 includes one or more of an air compressor, a water pump, and a fuel gas injection valve. Such as a hydrogen injection valve.
Specifically, the power generation component 3 includes a solid oxide fuel cell, a proton exchange membrane fuel cell, a molten carbonate fuel cell, and a hydrogen fuel cell.
Specifically, the control device 5 includes a controller or a PLC, which is respectively connected to the four sub-components.
Specifically, the energy storage component 1 comprises a thin sheet lithium battery hollow box body; the energy consumption component 2 comprises an air compressor, a water pump and a hydrogen injection valve; the power generation means 3 comprises a fuel cell stack, preferably a hydrogen fuel cell; the power conversion section 4 includes a DC/DC converter; the control device 5 comprises a controller or a PLC; the control device 5 is respectively connected with the four sub-components and controls the four sub-components; the four sub-parts are interconnected.
Specifically, the energy storage component 1, the energy consumption component 2, the power generation component 3, and the power conversion component 4 are arranged individually or in combination. For example, a super capacitor as the energy storage component 1 and an air compressor as the energy consumption component 2 can be combined into an air compressor with the super capacitor, and a hollow box of a thin lithium battery as the energy storage component 1 can be used as a structural support of a fuel cell stack.
In another aspect of the present invention, the present invention provides a control method based on the active fuel cell system, when receiving an energy storage command, the control device 5 controls the energy storage component 1 to store energy, controls the energy storage component 1 to provide electric energy to the energy consumption component 2, and drives the power conversion component 4 to convert the power output.
The method specifically comprises the following steps:
s01: starting;
s02: receiving an external demand instruction;
s03: controlling the energy storage component 1 to output power to the energy consumption component 2;
s04: driving the energy consumption component 2 to start working;
s05: the drive power conversion section 4 converts the power output;
s06: judging whether the machine is turned off; if so, the process proceeds to the end, otherwise, the process proceeds to step S02.
Specifically, the step S04 drives the energy consumption component 3 to start operating, which means that the control valve 21 supplies high-pressure hydrogen to the stack 24 and air to the air compressor 26.
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the disclosure, nor is it intended to be used to limit the scope of the disclosure.
Drawings
The foregoing and other objects, features and advantages of the disclosure will be apparent from the following more particular descriptions of exemplary embodiments of the disclosure as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the disclosure.
FIG. 1 shows an architecture diagram of an active fuel cell system;
FIG. 2 shows a schematic diagram of an active fuel cell system;
fig. 3 shows an active fuel cell system control method.
Reference numerals: the device comprises an energy storage component 1, an energy consumption component 2, a power generation component 3, a power conversion component 4, a control device 5, a thin sheet lithium battery hollow box body 20, a control valve 21, a DC/DC converter 22, a purge electromagnetic valve 23, a galvanic pile 24, a pressure regulating valve 25 and an air compressor 26.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The term "include" and variations thereof as used herein is meant to be inclusive in an open-ended manner, i.e., "including but not limited to". The term "or" means "and/or" unless specifically stated otherwise. The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like may refer to different or the same object. Other explicit and implicit definitions are also possible below.
Fig. 1 shows an architecture diagram of an active fuel cell system of the present invention, including an energy storage component 1, an energy consumption component 2, a power generation component 3, a power conversion component 4, and a control device 5. The energy storage component 1 is configured for energy storage; the energy consumption component 2 is configured to consume the energy stored by the energy storage component 1 and provide the required reactants to the power generation component 3; the power generation component 3 is configured as a fuel cell stack for providing a place where air and fuel electrochemically react and generate electric energy; the power conversion part 4 is configured to convert the direct current generated by the power generation part 3 into direct current or alternating current required by a device, a part; the control device 5 is used for being connected with the four sub-components to control the four sub-components.
It should be understood that the energy storage component 1, the energy consumption component 2, the power generation component 3, and the power conversion component 4 are only one general expression and may represent one or more specific components in the fuel cell system. For example, the energy storage component 1 may be arranged in the form of a lithium battery or a super capacitor energy storage unit; the energy consumption component 2 can be a control valve, an air compressor and the like; the power generation component 3 mainly refers to a fuel cell stack; the power conversion means 4 may then be for example a DC/DC converter. The energy storage component 1 of the present invention is mainly used for storing electric energy of the power generation component 3 and for the energy consumption component 2 when needed. The various components and the control device 5 may be electrically connected in a manner common in the art, and the invention is not particularly limited.
As a specific embodiment, fig. 2 shows a schematic diagram of an active fuel cell system of the present invention.
As shown in fig. 2, the energy storage component 1 in this embodiment is specifically a thin sheet lithium battery hollow case 20; the energy consumption components comprise a control valve 21 and an air compressor 26; the power generation device is specifically a fuel cell stack 24; the power conversion device is a DC/DC converter 22; the control device 5 is connected to each of the sub-components.
Specifically, the thin sheet lithium battery hollow casing 20 serves as a structural support for the fuel cell stack 24, which is integrally provided therewith. The fuel cell stack 24 is specifically a hydrogen fuel cell stack, a control valve 21 is arranged on a hydrogen inlet pipeline of the fuel cell stack 24, and a purging electromagnetic valve 23 is arranged on an exhaust pipeline; an air compressor 26 is provided in an air intake line of the fuel cell stack 24, and a pressure regulating valve 25 is provided in an exhaust line. The DC/DC converter 22 is connected to an electric power output terminal of the fuel cell stack 24, converts electric power according to an instruction of the control device 24, stores the converted electric power in the thin lithium battery hollow case 20, and supplies electric power to energy consuming components such as the control valve 21 and the air compressor 26 from the thin lithium battery hollow case 20. The control device 24 is in control connection with each component.
Fig. 3 shows a control method of the active fuel cell system of the present invention, and the control device 5, when receiving an energy storage command, controls the energy storage component 1 to store energy, controls the energy storage component 1 to provide electrical energy to the energy consumption component 2, and drives the power conversion component 4 to convert the electrical power output.
The working mode is as follows:
s01: starting;
s02: the control device 5 receives an external demand instruction;
s03: the control device 5 controls the energy storage component to output power, specifically, a positive contactor and a negative contactor of the output power are closed;
s04: the control device 5 drives the energy consumption components to start working, specifically, the control valve 21 provides high-pressure hydrogen for the fuel cell stack 24, and the air compressor 26 provides high-pressure air;
s05: the control device 5 drives the DC/DC converter 22 to convert the power output;
s06: judging whether the machine is turned off; if yes, the process proceeds to S07, otherwise, the process proceeds to S02;
s07: and (6) ending.
The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles of the embodiments, the practical application, or improvements made to the prior art, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (8)
1. An active fuel cell system, characterized in that it comprises a control device (5) and four sub-components: an energy storage component (1), an energy consumption component (2), a power generation component (3), a power conversion component (4), the energy storage component (1) being configured for energy storage; the energy consumption component (2) is configured to consume the energy stored in the energy storage component (1) and provide the required reactants to the power generation component (3); the power generation component (3) is configured to generate electric energy by utilizing the electrochemical reaction of air and fuel; the power conversion means (4) is configured to convert the direct current generated by the power generation means (3) into direct current or alternating current required by the energy storage means (1); the control device (5) is configured to be respectively connected with the four sub-components to realize the control of the four sub-components.
2. An active fuel cell system according to claim 1, characterized in that the energy storage component (1) comprises a battery or a super capacitor energy storage unit.
3. An active fuel cell system according to claim 1, characterized in that the energy consuming components (2) comprise one or more of an air compressor, a water pump, a fuel gas injection valve.
4. An active fuel cell system according to claim 1, characterized in that the power generation component (3) comprises a solid oxide fuel cell, a proton exchange membrane fuel cell, a molten carbonate fuel cell.
5. An active fuel cell system according to claim 1, characterized in that said control means (5) comprise a controller or PLC, respectively connected to said four sub-assemblies.
6. The active fuel cell system according to claim 1, wherein the energy storage component (1) is a super capacitor energy storage unit, the energy consumption component (2) comprises an air compressor, and the super capacitor energy storage unit and the air compressor are integrally arranged.
7. An active fuel cell system according to claim 1, characterized in that the energy storage component (1) comprises a thin sheet lithium battery hollow case; the energy consumption component (2) comprises an air compressor, a water pump and a hydrogen injection valve; the power generation component (3) comprises a fuel cell stack; the power conversion section (4) includes a DC/DC converter; the control device (5) comprises a controller or a PLC; the thin slice lithium battery hollow box body and the fuel cell electric pile are arranged integrally.
8. A control method of an active fuel cell system according to any one of claims 1 to 7, characterized by comprising the steps of:
s01: starting;
s02: receiving an external demand instruction;
s03: controlling the energy storage component (1) to output power to the energy consumption component (2);
s04: driving the energy consumption component (2) to start working;
s05: a drive power conversion unit (4) for converting the power output;
s06: judging whether the machine is turned off; if so, the process proceeds to the end, otherwise, the process proceeds to step S02.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210354451.XA CN114430055A (en) | 2022-04-06 | 2022-04-06 | Active fuel cell system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210354451.XA CN114430055A (en) | 2022-04-06 | 2022-04-06 | Active fuel cell system and control method thereof |
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Citations (5)
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|---|---|---|---|---|
| US20110001453A1 (en) * | 2007-02-07 | 2011-01-06 | Sony Corporation | Power supply system |
| KR101363627B1 (en) * | 2012-09-21 | 2014-02-28 | (주)지필로스 | Hybrid uninterruptible power supply apparatus using fuel cell and super capacitor and method for operating hybrid uninterruptible power supply apparatus |
| CN105762398A (en) * | 2014-12-16 | 2016-07-13 | 中国科学院大连化学物理研究所 | Fuel cell combined power supply system and control method thereof |
| CN111261902A (en) * | 2018-11-30 | 2020-06-09 | 中国科学院大连化学物理研究所 | Portable fuel cell system and control method thereof |
| CN111933970A (en) * | 2020-07-31 | 2020-11-13 | 深圳国氢新能源科技有限公司 | Long-endurance industrial vehicle and fuel cell power system thereof |
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- 2022-04-06 CN CN202210354451.XA patent/CN114430055A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110001453A1 (en) * | 2007-02-07 | 2011-01-06 | Sony Corporation | Power supply system |
| KR101363627B1 (en) * | 2012-09-21 | 2014-02-28 | (주)지필로스 | Hybrid uninterruptible power supply apparatus using fuel cell and super capacitor and method for operating hybrid uninterruptible power supply apparatus |
| CN105762398A (en) * | 2014-12-16 | 2016-07-13 | 中国科学院大连化学物理研究所 | Fuel cell combined power supply system and control method thereof |
| CN111261902A (en) * | 2018-11-30 | 2020-06-09 | 中国科学院大连化学物理研究所 | Portable fuel cell system and control method thereof |
| CN111933970A (en) * | 2020-07-31 | 2020-11-13 | 深圳国氢新能源科技有限公司 | Long-endurance industrial vehicle and fuel cell power system thereof |
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