CN110797555A - Electric power energy storage device - Google Patents
Electric power energy storage device Download PDFInfo
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- CN110797555A CN110797555A CN201911013422.1A CN201911013422A CN110797555A CN 110797555 A CN110797555 A CN 110797555A CN 201911013422 A CN201911013422 A CN 201911013422A CN 110797555 A CN110797555 A CN 110797555A
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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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
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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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
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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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
- H01M8/04216—Reactant storage and supply, e.g. means for feeding, pipes characterised by the choice for a specific material, e.g. carbon, hydride, absorbent
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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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- 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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Abstract
The invention provides an electric power energy storage device, which comprises an AC/DC conversion system, a water electrolysis hydrogen production system, an oxygen storage system, a hydrogen storage system and an energy storage cabinet control center unit; the AC/DC conversion system converts the electric energy to be stored into direct current electric energy from alternating current electric energy; the water electrolysis hydrogen production system converts direct current electric energy converted by the AC/DC conversion system into chemical energy and releases pure hydrogen and pure oxygen; the hydrogen storage system comprises a plurality of hydrogen storage bottles and is used for storing pure hydrogen, and the oxygen storage system comprises a plurality of oxygen storage bottles and is used for storing pure oxygen; the energy storage cabinet control center unit comprises a data acquisition unit, a data comparison unit, a control unit and an execution unit and is used for ensuring the operation safety of the oxygen storage system and the hydrogen storage system; in conclusion, the whole circuit energy storage device has the advantages of low cost, large capacity and safe and stable operation.
Description
Technical Field
The invention belongs to the technical field of electric power energy storage, and particularly relates to an electric power energy storage device.
Background
With the rapid increase of national economy, the demand for energy is increasingly vigorous, and the problems of energy shortage and environmental pollution caused by fossil energy are increasingly acute. The new energy resource has great potential and can be continuously utilized, plays an important role in meeting the energy demand, improving the energy structure, reducing the environmental pollution, promoting the economic development and the like, and has attracted wide attention of the international society. Under the double pressure of energy safety and environmental protection, renewable energy power generation such as wind power generation and solar power generation with relatively mature technology and large-scale development conditions is rapidly developed in the world. In particular, in recent years, the industrial scale and the degree of marketability of wind power generation and solar power generation have been increasing year by year, and the development of smart grid technology has been promoted.
According to different energy conversion forms, the energy storage technology can be divided into: mechanical energy storage (such as pumped storage, compressed air storage, flywheel storage, etc.); electromagnetic energy storage (e.g., superconducting magnetic energy storage, super capacitor, etc.); electrochemical energy storage (such as lead-acid batteries, lithium ion batteries, sodium-sulfur batteries, flow batteries, and the like). The pumped storage and the compressed air storage are greatly influenced by regional limitation; the duration of flywheel energy storage, superconducting magnetic energy storage and super capacitor energy storage is short, and generally does not exceed 15 min. In order to solve the problems, a novel electric energy storage device is provided.
Disclosure of Invention
The invention aims to provide an electric power energy storage device, which solves the problems of region limitation influence or short duration and the like of the conventional energy storage mode, and has certain potential safety hazard due to lack of effective supervision on the energy storage device.
The invention provides the following technical scheme:
an electric power energy storage device comprises an AC/DC conversion system, a water electrolysis hydrogen production system, an oxygen storage system, a hydrogen storage system and an energy storage cabinet control center unit; the AC/DC conversion system converts the electric energy to be stored into direct current electric energy from alternating current electric energy; the water electrolysis hydrogen production system converts direct current electric energy converted by the AC/DC conversion system into chemical energy and releases pure hydrogen and pure oxygen; the hydrogen storage system comprises a plurality of hydrogen storage bottles and is used for storing pure hydrogen, and the oxygen storage system comprises a plurality of oxygen storage bottles and is used for storing pure oxygen; the energy storage cabinet control center unit comprises a data acquisition unit, a data comparison unit, a control unit and an execution unit; the data acquisition unit is used for acquiring surface temperature data, internal pressure data and external concentration data of the hydrogen storage tank and the oxygen storage tank and transmitting the acquired temperature data, pressure data and concentration data to the data comparison unit; the data comparison unit is used for presetting a temperature standard value, a pressure standard value and a concentration standard value, respectively comparing and analyzing the temperature standard value, the pressure standard value and the concentration standard value with the temperature data, the pressure data and the concentration data, and simultaneously transmitting a comparison and analysis result to the control unit; the control unit is used for receiving the result of the comparative analysis of the data comparison unit and transmitting the feedback result to the execution unit, and the execution unit controls the discharge of the hydrogen storage tank and the oxygen storage tank.
Further, the data acquisition unit comprises a temperature sensor, a pressure sensor and a gas concentration sensor.
Furthermore, the data comparison unit is a single chip microcomputer with extremely low power consumption, the control unit comprises a PLC transmission unit, the PLC transmission unit is connected with the single chip microcomputer, the single chip microcomputer adjusts the sensor data of the data acquisition unit into a data format which can be transmitted by a power line, and data transmission is carried out between the adjacent control units through power line carriers.
Furthermore, the data acquisition unit, the data comparison unit, the control unit and the execution unit are respectively connected through RS485 buses.
Further, the electric power input to the AC/DC conversion system is derived from a wind power generation system, a solar power generation system, a thermal power generation system, a hydroelectric power generation system, a nuclear power plant, or an operating grid.
Further, the oxygen storage tank and the hydrogen storage tank are stored at normal pressure, medium pressure or high pressure, and the pressure range is 0-100 MPa.
Furthermore, the energy storage cabinet control center unit is connected with the background server through an Ethernet.
Furthermore, the water electrolysis hydrogen production system is a conventional alkaline water electrolysis hydrogen production system, a pure water electrolysis hydrogen production box body, a proton exchange membrane water electrolysis hydrogen production system or a solid oxide water electrolysis hydrogen production system.
The invention has the beneficial effects that:
the electric power energy storage device adopts a mature conventional water electrolysis hydrogen production system, has low cost and long service life; the hydrogen production system by electrolyzing water stores the electric power in the way of hydrogen and oxygen which are active substances, the energy storage capacity of the energy storage device is only determined by the volume and the pressure of the hydrogen storage system and the oxygen storage system, and compared with the existing energy storage mode, the capacity of the energy storage device is large; the consumed and generated products in the whole process are water, so that the adverse effect on the surrounding environment is avoided;
the intelligent sensor which is based on the IoT technology of the Internet of things can be arranged, so that the running conditions of each oxygen storage tank and each hydrogen storage tank can be monitored, the sensors are integrated into a unified energy storage cabinet control center unit to perform data sharing and unified control, and the intelligent sensor has the characteristics of high efficiency and accurate control;
through data acquisition unit, data contrast unit, the control unit and the execution unit, when guaranteeing that even hydrogen or oxygen discharge reach explosion limit or have the gas mixture that can reach explosion limit to appear, guarantee the safe operation of oxygen storage system and hydrogen storage system, therefore can not appear destructive large-scale explosion accident.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the present invention.
Detailed Description
As shown in fig. 1, an electric energy storage device comprises an AC/DC conversion system, a water electrolysis hydrogen production system, an oxygen storage system, a hydrogen storage system and an energy storage cabinet control center unit; the AC/DC conversion system converts the electric energy to be stored into direct current electric energy from alternating current electric energy; the electric energy input into the AC/DC conversion system is from a wind power generation system, a solar power generation system, a thermal power generation system, a hydroelectric power generation system, a nuclear power station or a running power grid; the water electrolysis hydrogen production system converts direct current electric energy converted by the AC/DC conversion system into chemical energy and releases pure hydrogen and pure oxygen; the water electrolysis hydrogen production system is a conventional alkaline water electrolysis hydrogen production system, a pure water electrolysis hydrogen production box body, a proton exchange membrane water electrolysis hydrogen production system or a solid oxide water electrolysis hydrogen production system; the hydrogen storage system comprises a plurality of hydrogen storage bottles and is used for storing pure hydrogen, and the oxygen storage system comprises a plurality of oxygen storage bottles and is used for storing pure oxygen; the oxygen storage tank and the hydrogen storage tank are stored at normal pressure, medium pressure or high pressure, and the pressure range is 0-100 MPa.
The energy storage cabinet control center unit comprises a data acquisition unit, a data comparison unit, a control unit and an execution unit; the data acquisition unit comprises a temperature sensor, a pressure sensor and a gas concentration sensor, and is used for acquiring surface temperature data, internal pressure data and external concentration data of the hydrogen storage tank and the oxygen storage tank and transmitting the acquired temperature data, pressure data and concentration data to the data comparison unit; the energy storage cabinet control center unit is connected with the background server through the Ethernet; the data comparison unit is used for presetting a temperature standard value, a pressure standard value and a concentration standard value, respectively comparing and analyzing the temperature standard value, the pressure standard value and the concentration standard value with the temperature data, the pressure data and the concentration data, and simultaneously transmitting a comparison and analysis result to the control unit; the control unit is used for receiving the result of the comparative analysis of the data comparison unit, transmitting the feedback result to the execution unit, and controlling the discharge of the hydrogen storage tank and the oxygen storage tank by the execution unit; the data comparison unit is an ultra-low power consumption single chip microcomputer, the control unit comprises a PLC transmission unit, the PLC transmission unit is connected with the single chip microcomputer, the single chip microcomputer adjusts the sensor data of the data acquisition unit into a data format which can be transmitted by a power line, and data transmission is carried out between adjacent control units through power line carriers; the data acquisition unit, the data comparison unit, the control unit and the execution unit are respectively connected through RS485 buses.
The specific operation method of the present embodiment:
(1) and (3) charging process: storing solar energy, wind energy power generation fields or power grid electric energy in the energy storage device in the power grid load valley period;
(2) energy storage process: after the charging process is finished, the input electric energy is converted into chemical energy (hydrogen and oxygen) which is stored in the hydrogen storage system and the oxygen storage system respectively, and the storage capacity and the storage time can be flexibly controlled because the storage process is physical storage;
in the energy storage process, the energy storage cabinet control center unit realizes the intermittent emission of adjustable frequency, and the emission is controllable, so that the safety performance is ensured even if the emission reaches the explosion limit or the emission has the gas mixture capable of reaching the explosion limit.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An electric energy storage device is characterized by comprising an AC/DC conversion system, a water electrolysis hydrogen production system, an oxygen storage system, a hydrogen storage system and an energy storage cabinet control center unit; the AC/DC conversion system converts the electric energy to be stored into direct current electric energy from alternating current electric energy; the water electrolysis hydrogen production system converts direct current electric energy converted by the AC/DC conversion system into chemical energy and releases pure hydrogen and pure oxygen; the hydrogen storage system comprises a plurality of hydrogen storage bottles and is used for storing pure hydrogen, and the oxygen storage system comprises a plurality of oxygen storage bottles and is used for storing pure oxygen;
the energy storage cabinet control center unit comprises a data acquisition unit, a data comparison unit, a control unit and an execution unit; the data acquisition unit is used for acquiring surface temperature data, internal pressure data and external concentration data of the hydrogen storage tank and the oxygen storage tank and transmitting the acquired temperature data, pressure data and concentration data to the data comparison unit; the data comparison unit is used for presetting a temperature standard value, a pressure standard value and a concentration standard value, respectively comparing and analyzing the temperature standard value, the pressure standard value and the concentration standard value with the temperature data, the pressure data and the concentration data, and simultaneously transmitting a comparison and analysis result to the control unit; the control unit is used for receiving the result of the comparative analysis of the data comparison unit and transmitting the feedback result to the execution unit, and the execution unit controls the discharge of the hydrogen storage tank and the oxygen storage tank.
2. An electrical energy storage device as claimed in claim 1 wherein said data acquisition unit comprises a temperature sensor, a pressure sensor and a gas concentration sensor.
3. The electric power energy storage device of claim 2, wherein the data comparison unit is a single chip microcomputer with extremely low power consumption, the control unit comprises a PLC transmission unit, the PLC transmission unit is connected with the single chip microcomputer, the single chip microcomputer adjusts the sensor data of the data acquisition unit into a data format which can be transmitted by a power line, and data transmission is performed between the adjacent control units through a power line carrier.
4. The electric energy storage device according to claim 1, wherein the data acquisition unit, the data comparison unit, the control unit and the execution unit are connected through RS485 buses respectively.
5. An electrical energy storage device according to claim 1, wherein the electrical energy input to the AC/DC conversion system is derived from a wind power generation system, a solar power generation system, a thermal power generation system, a hydro power generation system, a nuclear power plant or an operating grid.
6. An electric energy storage device according to claim 1, wherein the oxygen storage tank and the hydrogen storage tank are stored at normal pressure, medium pressure or high pressure, and the pressure range is 0-100 MPa.
7. The power energy storage device according to claim 1, wherein said energy storage cabinet control center unit is connected to said background server through ethernet.
8. The electric energy storage device of claim 1, wherein the water electrolysis hydrogen production system is a conventional alkaline water electrolysis hydrogen production system, a pure water electrolysis hydrogen production box, a proton exchange membrane water electrolysis hydrogen production system, or a solid oxide water electrolysis hydrogen production system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911013422.1A CN110797555A (en) | 2019-10-23 | 2019-10-23 | Electric power energy storage device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911013422.1A CN110797555A (en) | 2019-10-23 | 2019-10-23 | Electric power energy storage device |
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| CN110797555A true CN110797555A (en) | 2020-02-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115101857A (en) * | 2022-07-11 | 2022-09-23 | 国网河南省电力公司电力科学研究院 | Container formula electrochemistry and hydrogen energy storage integration system |
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| CN102185327A (en) * | 2011-03-28 | 2011-09-14 | 中国华能集团清洁能源技术研究院有限公司 | Reversible fuel cell-based high-capacity power energy storage device |
| CN202034790U (en) * | 2011-03-28 | 2011-11-09 | 中国华能集团清洁能源技术研究院有限公司 | Large-capacity electric power energy storage device |
| CN108091905A (en) * | 2017-11-15 | 2018-05-29 | 深圳市雄韬电源科技股份有限公司 | Intelligent fuel cell hydrogen storage system |
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- 2019-10-23 CN CN201911013422.1A patent/CN110797555A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185328A (en) * | 2011-03-28 | 2011-09-14 | 中国华能集团清洁能源技术研究院有限公司 | Novel large-scale power energy storage device |
| CN102185327A (en) * | 2011-03-28 | 2011-09-14 | 中国华能集团清洁能源技术研究院有限公司 | Reversible fuel cell-based high-capacity power energy storage device |
| CN202034790U (en) * | 2011-03-28 | 2011-11-09 | 中国华能集团清洁能源技术研究院有限公司 | Large-capacity electric power energy storage device |
| CN108091905A (en) * | 2017-11-15 | 2018-05-29 | 深圳市雄韬电源科技股份有限公司 | Intelligent fuel cell hydrogen storage system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115101857A (en) * | 2022-07-11 | 2022-09-23 | 国网河南省电力公司电力科学研究院 | Container formula electrochemistry and hydrogen energy storage integration system |
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Application publication date: 20200214 |