CN213906324U - Flywheel-hydrogen production system for wind power plant peak shaving frequency modulation - Google Patents
Flywheel-hydrogen production system for wind power plant peak shaving frequency modulation Download PDFInfo
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- CN213906324U CN213906324U CN202021598871.5U CN202021598871U CN213906324U CN 213906324 U CN213906324 U CN 213906324U CN 202021598871 U CN202021598871 U CN 202021598871U CN 213906324 U CN213906324 U CN 213906324U
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- hydrogen production
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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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
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model discloses a flywheel-hydrogen manufacturing system for wind-powered electricity generation field peak regulation frequency modulation, wherein, wind power generation system, flywheel energy storage system, electrolytic water hydrogen manufacturing system insert power coordination controller with respective power signal. The wind power generation system is connected with an alternating current bus; the electrolysis hydrogen production system is connected with an alternating current bus through a DC-AC bidirectional converter, the alternating current bus is connected with a power interface of the electrolysis hydrogen production system through the AC-DC converter, an oxygen outlet of the electrolysis hydrogen production system is communicated with an inlet of an oxygen storage tank, and a hydrogen outlet of the electrolysis hydrogen production system is communicated with an inlet of a hydrogen storage tank. The system can effectively solve the problems of unstable electric energy output and large amount of abandoned wind of the wind power plant, and realizes efficient peak regulation and frequency modulation of the wind power plant.
Description
Technical Field
The utility model belongs to the field of flywheel energy storage and electrolytic water hydrogen production mixed peak shaving frequency modulation, and relates to a flywheel-hydrogen production system for wind power plant peak shaving frequency modulation.
Background
Due to randomness and instability of wind energy, fluctuation of wind power output power and frequency is greatly influenced by seasons, environments, positions and the like, output electric energy quality is poor, reliability is low, and large-scale wind power integration influences safe and stable operation of a power grid; wind power scale grid connection can cause impact on stable operation of a power system. Therefore, the wind power assessment strength in various places is gradually increased.
The flywheel energy storage system has the advantages of high multiplying power and long service life, can be charged and discharged frequently in a short time with high power, dynamically and quickly absorbs energy and releases the energy timely, can effectively make up the defects of wind power, improves the controllability of wind power output, and improves the stability level of a power system. However, the flywheel has high energy storage cost and small capacity, is not suitable for large-scale use and is only suitable for frequency modulation.
The hydrogen production by water electrolysis can be used as an effective means for absorbing a large amount of abandoned wind, and the hydrogen production by water electrolysis is used as a main peak regulation mode and is combined with a frequency regulation mode of flywheel energy storage. The method can improve the effective utilization rate of abandoned wind resources, convert the abandoned wind resources into a high-value hydrogen byproduct, effectively solve the impact of unstable wind power integration on a power grid, and realize the functions of improving the power quality, quickly responding to frequency modulation and voltage regulation, outputting smooth power, tracking the planned power, clipping peaks and filling valleys and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a flywheel-hydrogen manufacturing system for wind-powered electricity generation field peak regulation frequency modulation, this system can effectual solution wind-powered electricity generation field electric energy output unstable and abandon the problem of wind in a large number, realizes the high-efficient peak regulation frequency modulation of wind-powered electricity generation field.
In order to achieve the purpose, the flywheel-hydrogen production system for peak regulation and frequency modulation of the wind power plant comprises a wind power generation system, a power coordination controller, a flywheel energy storage system, a DC-AC bidirectional converter, an electrolysis hydrogen production system, an AC-DC converter, an oxygen storage tank, a hydrogen storage tank and a power grid;
the wind power generation system, the flywheel energy storage system and the water electrolysis hydrogen production system access respective power signals to the power coordination controller, and the wind power generation system is accessed to the alternating current bus; the electrolysis hydrogen production system is connected with an alternating current bus through a DC-AC bidirectional converter, the alternating current bus is connected with a power interface of the electrolysis hydrogen production system through the AC-DC converter, an oxygen outlet of the electrolysis hydrogen production system is communicated with an inlet of an oxygen storage tank, and a hydrogen outlet of the electrolysis hydrogen production system is communicated with an inlet of a hydrogen storage tank.
The oxygen outlet of the electrolytic hydrogen production system is communicated with the inlet of the oxygen storage tank through an oxygen compressor.
The hydrogen outlet of the electrolytic hydrogen production system is communicated with the hydrogen storage tank through a hydrogen compressor.
An oxygen outlet of the electrolytic hydrogen production system is communicated with an oxygen compressor through an oxygen purification device and an oxygen buffer tank.
The hydrogen outlet of the electrolytic hydrogen production system is communicated with a hydrogen compressor through a hydrogen purification device and a hydrogen buffer tank.
The utility model discloses following beneficial effect has:
a flywheel-hydrogen manufacturing system for wind-powered electricity generation field peak regulation frequency modulation when concrete operation, with wind power generation system, flywheel energy storage system and electrolysis hydrogen manufacturing system combine together, with the problem of solving wind power generation system wind-powered electricity generation output volatility and abandoning wind in a large number, improve wind power generation system's electricity generation utilization ratio, it is fast to utilize flywheel energy storage system response speed simultaneously, a great deal of characteristics that power density is high, it is undulant to stabilize wind-powered electricity generation, realize quick frequency modulation function, reduce the undulant impact to electric wire netting and electrolysis hydrogen manufacturing system of wind-powered electricity generation, renewable energy power generation intermittent type nature such as wind-powered electricity generation has effectively been compensatied, the shortcoming of volatility, improve electric field output's controllability, promote the stability level of electricity generation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is a wind power generation system, 2 is a power coordination controller, 3 is a flywheel energy storage system, 4 is an electrolysis hydrogen production system, 5 is a hydrogen compressor, 6 is an oxygen compressor, 7 is an oxygen storage tank, 8 is a hydrogen storage tank, 9 is a DC-AC bidirectional converter, 10 is an AC-DC converter, 11 is an AC bus, and 12 is a power grid.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, the flywheel-hydrogen production system for peak shaving and frequency modulation of wind farm of the present invention comprises a wind power generation system 1, a power coordination controller 2, a flywheel energy storage system 3, a DC-AC bidirectional converter 9, an electrolysis hydrogen production system 4, an AC-DC converter 11, an oxygen storage tank 7, a hydrogen storage tank 8, an AC bus 11 and a power grid 12; the wind power generation system 1, the flywheel energy storage system 3 and the water electrolysis hydrogen production system 4 access respective power signals to the power coordination controller 2. The wind power generation system 1 is connected with an alternating current bus 12; the flywheel energy storage system 3 is connected with an alternating current bus 11 through a DC-AC bidirectional converter 9, the alternating current bus 11 is connected with a power interface of the electrolytic hydrogen production system 4 through an AC-DC converter 10, an oxygen outlet of the electrolytic hydrogen production system 4 is communicated with an oxygen compressor 6 through an oxygen purification device and an oxygen buffer tank, and enters an oxygen storage tank 7; the hydrogen outlet of the electrolytic hydrogen production system 4 is communicated with a hydrogen compressor 5 through a hydrogen purification device and a hydrogen buffer tank, and enters a hydrogen storage tank 8.
When the generated power of the wind power generation system 1 is larger than the requirement of the power grid 12, the coordination controller 2 inputs redundant electric quantity into the flywheel energy storage system 3 after preferentially passing through the DC-AC bidirectional converter, and the flywheel energy storage system 3 utilizes the flywheel to store the redundant electric quantity; when the flywheel energy storage system 3 is full of stored energy, the power coordination controller 2 is controlled to rectify redundant electric quantity through the AC-DC converter 10 and input the rectified electric quantity into the electrolytic hydrogen production system 4, and the electrolytic hydrogen production system 4 utilizes redundant electric energy to electrolyze water to produce hydrogen, wherein hydrogen generated by electrolytic water is purified through the hydrogen purification device, buffered through the hydrogen buffer tank and compressed through the hydrogen compressor 5 and then stored into the hydrogen storage tank 8, and meanwhile, oxygen generated by electrolytic water is purified through the oxygen purification device, buffered through the oxygen buffer tank and compressed through the oxygen compressor 6 and then stored into the oxygen storage tank 7.
When the generated power of the wind power generation system 1 is smaller than the requirement of the power grid 12, the control system transmits all the electric energy generated by the wind power generation system 1 to the power grid 12, and simultaneously controls the flywheel energy storage system 3 to release energy to generate electric energy, and the direct current output by the flywheel energy storage system 3 is converted into alternating current through the DC-AC bidirectional converter 9 and then is input into the power grid 11 through the power coordination controller 2, wherein the flywheel energy storage system 3 has the characteristic of quick response and can effectively improve the frequency modulation speed and precision of a wind power plant.
The electrolytic hydrogen production system 4 adopts conventional alkaline electrolyte (30% KOH solution) with higher conductivity, and the cathode material of the electrolytic cell is one or more alloys of metals such as Pt, Ru, Rh, Ir, Ni, Co, Fe, Zn, Ti and the like; the anode material is nickel-based metal or alloy oxide.
In the embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (3)
1. A flywheel-hydrogen production system for peak regulation and frequency modulation of a wind power plant is characterized by comprising a wind power generation system (1), a power coordination controller (2), a flywheel energy storage system (3), a DC-AC bidirectional converter (9), an electrolysis hydrogen production system (4), an AC-DC converter (10), an oxygen storage tank (7), a hydrogen storage tank (8), an alternating current bus (11) and a power grid (12);
the wind power generation system (1), the flywheel energy storage system (3) and the electrolytic hydrogen production system (4) access respective power signals to the power coordination controller (2), and the wind power generation system (1) is accessed to the alternating current bus (11); the flywheel energy storage system (3) is connected with an alternating current bus (11) through a DC-AC bidirectional converter (9), the alternating current bus (11) is connected with a power interface of the electrolytic hydrogen production system (4) through an AC-DC converter (10), an oxygen outlet of the electrolytic hydrogen production system (4) is communicated with an inlet of an oxygen storage tank (7), and a hydrogen outlet of the electrolytic hydrogen production system (4) is communicated with an inlet of a hydrogen storage tank (8).
2. The flywheel-hydrogen production system for wind farm peak shaving and frequency modulation according to claim 1, characterized in that the oxygen outlet of the electrolytic hydrogen production system (4) is communicated with the inlet of the oxygen storage tank (7) through an oxygen compressor (6).
3. The flywheel-hydrogen production system for wind farm peak shaving and frequency modulation according to claim 1, characterized in that the hydrogen outlet of the electrolytic hydrogen production system (4) is communicated with the hydrogen storage tank (8) through a hydrogen compressor (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021598871.5U CN213906324U (en) | 2020-08-04 | 2020-08-04 | Flywheel-hydrogen production system for wind power plant peak shaving frequency modulation |
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| CN202021598871.5U CN213906324U (en) | 2020-08-04 | 2020-08-04 | Flywheel-hydrogen production system for wind power plant peak shaving frequency modulation |
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| CN213906324U true CN213906324U (en) | 2021-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115395540A (en) * | 2022-09-20 | 2022-11-25 | 华驰动能(北京)科技有限公司 | Flywheel hydrogen storage device for new energy station |
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- 2020-08-04 CN CN202021598871.5U patent/CN213906324U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115395540A (en) * | 2022-09-20 | 2022-11-25 | 华驰动能(北京)科技有限公司 | Flywheel hydrogen storage device for new energy station |
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