CN212627177U - Hydrogen production and energy storage system for offshore wind power energy base - Google Patents
Hydrogen production and energy storage system for offshore wind power energy base Download PDFInfo
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- CN212627177U CN212627177U CN202021636618.4U CN202021636618U CN212627177U CN 212627177 U CN212627177 U CN 212627177U CN 202021636618 U CN202021636618 U CN 202021636618U CN 212627177 U CN212627177 U CN 212627177U
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
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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
Abstract
The utility model discloses an offshore wind power energy base hydrogen production and energy storage system, which comprises an offshore wind field, a collection station, a low-voltage AC-DC conversion system, an electric network, a battery energy storage system, a hydrogen production system, an oxygen storage system, a hydrogen storage system and a fuel cell system; the output end of the offshore wind farm is connected with the input end of the collecting station, the output end of the collecting station is connected with the input end of the low-voltage AC-DC conversion system and the power grid, the output end of the low-voltage AC-DC conversion system is connected with the charging interface of the battery energy storage system and the power supply interface of the hydrogen production system, the oxygen outlet of the hydrogen production system is communicated with the oxygen storage system, the hydrogen outlet of the hydrogen production system is communicated with the hydrogen storage system, the outlet of the hydrogen storage system is communicated with the hydrogen inlet of the fuel cell system, the output end of the fuel cell system and the output end of the battery energy storage system are connected with the power grid, and the offshore wind power station wind power generation.
Description
Technical Field
The utility model belongs to the technical field of offshore wind power hydrogen production energy storage, a offshore wind power energy source base hydrogen production energy storage system is related to.
Background
With the increasing emphasis on climate change, ecological environment, energy safety and other problems of all countries in the world, the emphasis on developing renewable energy becomes a consistent direction of energy development of all countries. According to the prediction of the international renewable energy agency, the proportion of renewable energy power generation to global power generation is increased from 26% to 85% by 2050. By the end of 2019, the wind power and solar energy installation accounts for 20.6% of the total capacity of the power generation installation in China, and according to the forecast of the energy research institute of the State development and improvement Commission, the proportion of the wind power and solar energy installation in China in 2050 can reach 69%.
By the end of 2019, the total wind power installation amount in China reaches 2.1 hundred million kilowatts, and most of wind power installations are onshore wind power. Under the same condition, the annual power generation hours of offshore wind power is longer than that of onshore wind power, the wind power is more stable, and the landform and landform are simpler than that of onshore wind power. In addition, the factory site suitable for developing offshore wind power in China generally goes south from Bohai Bay, is relatively close to the national power load center, is convenient to be consumed nearby, reduces the cost of an outgoing channel, and is suitable for large-scale development. In recent years, the development of offshore wind power in China is gradually accelerated, and the development of related industries is gradually paid attention and supported by national and local energy governing departments.
The hydrogen is used as a secondary energy source which has wide source, cleanness, no carbon, flexibility, high efficiency, storability, reproducibility and rich application scene, is an ideal interconnection medium for promoting the clean and high-efficiency utilization of the traditional fossil energy and supporting the large-scale development of the renewable energy, and is also the best choice for realizing large-scale deep decarburization in the fields of transportation, industry, buildings and the like. The hydrogen energy can solve the problems of intermittency and fluctuation of renewable energy sources and has the characteristics of transseasonal and transregional storage and transportation, so the hydrogen energy is considered to be the best carrier for the large-scale development of the global renewable energy sources.
Similar to national power load distribution, the application area of hydrogen energy (especially high-purity hydrogen) is mainly in first-line and second-line cities, especially in centralized cities in coastal zones, and the demand of high-purity hydrogen energy is further increased due to the development of hydrogen-using industries such as fuel cell automobiles and the like in the future, which is similar to the development situation of offshore wind power. Meanwhile, compared with the current 'grey hydrogen' and 'blue hydrogen', the hydrogen production by 100% renewable energy belongs to green hydrogen energy, no influence is caused on the environment, and the product water after hydrogen utilization has no pollution to the environment and can be utilized.
Therefore, the hydrogen production by the offshore wind power, especially the hydrogen production by limiting the electricity can reduce the electricity abandonment amount of the offshore wind power by utilizing the advantage of long-period storage of hydrogen energy, and improve the income of an offshore wind field. Meanwhile, with the development of marine hydrogen energy utilization (such as hydrogen-powered ships) in the future and the aggravation of the demand of peripheral countries (Japan, Korea and the like) on hydrogen energy, the arrangement of the marine wind power hydrogen production in advance is beneficial to the development and utilization of the marine energy of the marine wind power in China, and the leading position of China in the marine wind power and hydrogen energy industry is locked.
Currently, the relevant research is carried out by the fresh scholars or units:
chinese patent CN110098425A proposes an offshore wind power hydrogen production and organic liquid hydrogen storage energy storage system, which utilizes offshore wind power to produce hydrogen and then utilizes fuel cells to generate electricity, thus solving the problems of remote island function and wind power fluctuation. The protection content of the patent is different from the hydrogen energy storage mode of the fuel cell which utilizes the cell energy storage system to cooperatively produce hydrogen, and the system structure of direct current sending and alternating current sending is distinguished in the patent, and platforms such as an offshore hydrogen energy conveying channel, an offshore hydrogen energy distribution platform and an offshore hydrogenation platform are not mentioned in the patent.
Chinese patent CN110904464A proposes a seawater electrolytic hydrogen production system based on offshore wind power, which desalts seawater and then electrolyzes the seawater to produce hydrogen. The protection content of the patent is different from the hydrogen energy storage mode of a fuel cell which utilizes a cell energy storage system to cooperatively produce hydrogen, is different from the system construction for solving the electricity limiting problem of an offshore wind energy source base through hydrogen production in the patent, and is different from the hydrogen energy utilization modes of an offshore hydrogen energy conveying channel, an offshore hydrogen energy distribution platform, an offshore hydrogenation platform and the like in the patent.
Chinese patent CN107769255A provides a variable-speed constant-frequency wind power generation system based on offshore wind power hydrogen production and a control method, the total power of the variable-speed constant-frequency wind power generation system is continuously increased through the wind power hydrogen production, so that the wind speed borne by a fan can be continuously increased by stages, the pitch-variable process is omitted, and the manufacturing cost of the fan is saved. This patent protection is different from this patent protection.
Chinese patent CN101975141A proposes an offshore wind power/frequency control method, which utilizes pumped storage power station and hydrogen storage equipment to adjust wind power and frequency. This patent protection is different from this patent protection.
Through research and development of related patents, research on utilization of hydrogen energy storage of the offshore wind and electricity energy source base is less, a hydrogen energy utilization system and a utilization mode of the offshore wind and electricity energy source base need to be designed, and the practical and feasible problem that the offshore wind and electricity energy source base abandons wind is solved. This is not mentioned in the prior patented work.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome above-mentioned prior art's shortcoming, provide an offshore wind power energy source base hydrogen manufacturing energy storage system, this system can the marine wind power energy source base of effectual solution abandon the wind problem.
In order to achieve the purpose, the hydrogen production and energy storage system of the offshore wind power energy base comprises an offshore wind field, a collection station, a low-voltage AC-DC conversion system, a power grid, a battery energy storage system, a hydrogen production system, an oxygen storage system, a hydrogen storage system and a fuel cell system;
the output end of the offshore wind field is connected with the input end of the collecting station, the output end of the collecting station is connected with the input end of the low-voltage AC-DC conversion system and the power grid, the output end of the low-voltage AC-DC conversion system is connected with the charging interface of the battery energy storage system and the power supply interface of the hydrogen production system, the oxygen outlet of the hydrogen production system is communicated with the oxygen storage system, the hydrogen outlet of the hydrogen production system is communicated with the hydrogen storage system, the outlet of the hydrogen storage system is communicated with the hydrogen inlet of the fuel cell system, and the output end of the fuel cell system and the output end of the battery energy storage system.
The system also comprises a DC-AC conversion system and an alternating current booster station, wherein the output end of the battery energy storage system and the output end of the fuel battery system are connected with the input end of the DC-AC conversion system, the output end of the DC-AC conversion system and the output end of the collecting station are connected with the input end of the alternating current booster station, and the output end of the alternating current booster station is connected with a power grid.
The system further comprises a high-voltage AC-DC conversion system and a direct-current booster station, wherein the output end of the collecting station is connected with the input end of the high-voltage AC-DC conversion system, the output end of the battery energy storage system and the output end of the fuel battery system are connected with the input end of the direct-current booster station, and the output end of the direct-current booster station is connected with a power grid.
The device also comprises an offshore hydrogen energy conveying channel, an offshore hydrogen energy distribution platform and an offshore hydrogenation platform which are communicated with the hydrogen storage system.
The utility model discloses following beneficial effect has:
the utility model discloses an offshore wind power energy base hydrogen production energy storage system when concrete operation, offshore wind field electricity generation is collected at gathering the station, gather the station output electricity and divide into two parts, one part of them merges the electric wire netting through exchanging the booster station, after the direct current after another part passes through low pressure AC-DC transform system transform, a part is saved in battery energy storage system, another part gets into hydrogen production system, in order to avoid appearing abandoning the wind problem, in addition, according to offshore wind power energy source condition of being incorporated into the power networks and the condition of load fluctuation, in addition start battery energy storage system discharge, the nimble fuel cell system of running simultaneously, fuel cell system electricity generation and battery energy storage system discharge are merged the back and are input to the electric wire netting, solve energy electric energy fluctuation problem to a certain extent, moreover, the steam generator is simple in structure, convenient operation, the practicality is extremely strong, satisfy the demand of peak clipping and valley filling of offshore wind, and the peak fluctuation and the long-period fluctuation of the energy base are stabilized.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment;
fig. 2 is a schematic structural diagram of the second embodiment.
Wherein, 1 is an offshore wind field, 2 is a collecting station, 3 is a low-voltage AC-DC conversion system, 4 is a battery energy storage system, 5 is a hydrogen production system, 6 is an oxygen storage system, 7 is a hydrogen storage system, 701 is an offshore hydrogen energy transmission channel, 702 is an offshore hydrogen energy distribution platform, 703 is an offshore hydrogenation platform, 8 is a fuel cell system, 9 is a DC-AC conversion system, 10 is an alternating current booster station, 11 is a power grid, 12 is a high-voltage AC-DC conversion system, and 13 is a direct current booster station.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
the offshore wind power energy base hydrogen production and energy storage system comprises an offshore wind farm 1, a collection station 2, a low-voltage AC-DC conversion system 3, an electric network 11, a battery energy storage system 4, a hydrogen production system 5, an oxygen storage system 6, a hydrogen storage system 7 and a fuel cell system 8; the output end of the offshore wind field 1 is connected with the input end of the collecting station 2, the output end of the collecting station 2 is connected with the input end of the low-voltage AC-DC conversion system 3 and the power grid 11, the output end of the low-voltage AC-DC conversion system 3 is connected with the charging interface of the battery energy storage system 4 and the power supply interface of the hydrogen production system 5, the oxygen outlet of the hydrogen production system 5 is communicated with the oxygen storage system 6, the hydrogen outlet of the hydrogen production system 5 is communicated with the hydrogen storage system 7, the outlet of the hydrogen storage system 7 is communicated with the hydrogen inlet of the fuel battery system 8, and the output end of the fuel battery system 8 and the output end of the battery energy storage system 4 are. In addition, the utility model discloses still include marine hydrogen energy transfer passage 701, marine hydrogen energy distribution platform 702 and marine hydrogenation platform 703 that are linked together with hydrogen storage system 7.
Example one
Referring to fig. 1, the present invention further includes a DC-AC converting system 9 and an AC voltage boosting station 10, wherein the output end of the battery energy storage system 4 and the output end of the fuel cell system 8 are connected to the input end of the DC-AC converting system 9, the output end of the DC-AC converting system 9 and the output end of the collecting station 2 are connected to the input end of the AC voltage boosting station 10, and the output end of the AC voltage boosting station 10 is connected to the power grid 11.
When the offshore wind farm works, electricity generated by the offshore wind farm 1 is collected in the collecting station 2, the electricity output by the collecting station 2 is divided into two parts, one part is merged into an electric network 11 through the alternating current booster station 10, the other part is stored in the battery energy storage system 4 after passing through direct current converted by the low-voltage AC-DC conversion system 3, the other part enters the hydrogen production system 5, hydrogen is produced through water electrolysis, oxygen generated by electrolysis is stored in the oxygen storage system 6, hydrogen generated by electrolysis is stored in the hydrogen storage system 7, the battery energy storage system 4 discharges electricity and enters the DC-AC conversion system 9 according to the grid connection condition and the load fluctuation condition of an offshore wind power source base, the fuel cell system 8 flexibly operates at the same time, the electricity generated by the fuel cell system 8 and the discharge of the battery energy storage system 4 are merged and connected into the DC-AC conversion system 9, and then is boosted by the, the hydrogen for power generation of the fuel cell system 8 is taken from the hydrogen storage system 7, and the hydrogen storage system 7 is simultaneously connected with the offshore hydrogen energy conveying channel 701, the offshore hydrogen energy distribution platform 702 and the offshore hydrogenation platform 703 for conveying hydrogen energy or performing offshore hydrogenation service.
Example two
Referring to fig. 2, the present invention further includes a high voltage AC-DC converting system 12 and a DC booster station 13, wherein the output of the collecting station 2 is connected to the input of the high voltage AC-DC converting system 12, the output of the battery energy storage system 4 and the output of the fuel cell system 8 are connected to the input of the DC booster station 13, and the output of the DC booster station 13 is connected to the power grid 11.
The power generation of the offshore wind field 1 is collected in a collecting station 2, according to the power utilization requirement of a receiving-end power market, the power of the collecting station 2 is divided into two parts, wherein one part of the power enters a high-voltage AC-DC conversion system 12 for inversion, the other part of the power enters a low-voltage AC-DC conversion system 3 for energy storage, the direct current converted by the low-voltage AC-DC conversion system 3 is stored in a battery energy storage system 4 to stabilize the peak fluctuation in the short term of the system, the other part of the power enters a hydrogen production system 5 to produce hydrogen through water electrolysis, and then the hydrogen and the oxygen are respectively stored in a hydrogen storage system 7 and an oxygen storage system 6. According to the grid connection condition and the output fluctuation condition of the offshore wind power and energy base, the battery energy storage system 4 discharges to adjust the peak fluctuation of the electric energy, the fuel battery system 8 flexibly operates, the electricity generated by the fuel battery system 8 and the discharge of the battery energy storage system 4 are combined and then are connected into the high-voltage AC-DC conversion system 12 to be inverted into direct current, and then the direct current is boosted by the direct current booster station 13 and then is sent to the power grid 11. The hydrogen used for the operation of the fuel cell system 8 is taken from the hydrogen storage system 7, and the hydrogen storage system 7 is simultaneously connected with the offshore hydrogen energy conveying channel 701, the offshore hydrogen energy distribution platform 702 and the offshore hydrogenation platform 703 for conveying hydrogen energy or performing offshore hydrogenation service.
The utility model discloses utilize the long period energy storage characteristics of hydrogen energy scale, carry out the energy form conversion with the limit of electricity of offshore wind energy source base, can solve energy base limit of electricity problem, can utilize fuel cell technique to convert hydrogen energy into electric energy once more and send out, solve energy base electric energy fluctuation problem to a certain extent again.
Furthermore, the utility model discloses a battery energy storage system 4 utilizes its quick adjustment's technical advantage, and it is undulant to adjust hydrogen manufacturing system 4 and the unable quick adjustment's of fuel cell system 4 electric power peak.
Finally, the utility model discloses well energy storage system sets up marine hydrogen energy transfer passage 701, marine hydrogen energy distribution platform 702 and marine hydrogenation platform 703, can utilize to have had natural gas passage to send out the hydrogen energy, also can utilize the convenient advantage of marine transportation in marine wind power source base to carry out the hydrogen energy distribution, can also overall arrangement hydrogen power boats and ships hydrogenation industry.
Claims (4)
1. A hydrogen production and energy storage system for an offshore wind power energy base is characterized by comprising an offshore wind field (1), a collection station (2), a low-voltage AC-DC conversion system (3), a power grid (11), a battery energy storage system (4), a hydrogen production system (5), an oxygen storage system (6), a hydrogen storage system (7) and a fuel cell system (8);
the output end of the offshore wind field (1) is connected with the input end of the collecting station (2), the output end of the collecting station (2) is connected with the input end of the low-voltage AC-DC conversion system (3) and the power grid (11), the output end of the low-voltage AC-DC conversion system (3) is connected with the charging interface of the battery energy storage system (4) and the power supply interface of the hydrogen production system (5), the oxygen outlet of the hydrogen production system (5) is communicated with the oxygen storage system (6), the hydrogen outlet of the hydrogen production system (5) is communicated with the hydrogen storage system (7), the outlet of the hydrogen storage system (7) is communicated with the hydrogen inlet of the fuel cell system (8), and the output end of the fuel cell system (8) and the output end of the battery energy storage system (4) are connected with the power grid (11).
2. Offshore wind energy base hydrogen production and energy storage system according to claim 1, characterized by further comprising a DC-AC conversion system (9) and an AC booster station (10), wherein the output of the battery energy storage system (4) and the output of the fuel cell system (8) are connected to the input of the DC-AC conversion system (9), the output of the DC-AC conversion system (9) and the output of the collection station (2) are connected to the input of the AC booster station (10), and the output of the AC booster station (10) is connected to the grid (11).
3. The offshore wind power and energy base hydrogen production and energy storage system according to claim 1, further comprising a high voltage AC-DC conversion system (12) and a DC boost station (13), wherein the output of the collection station (2) is connected to the input of the high voltage AC-DC conversion system (12), the output of the battery energy storage system (4) and the output of the fuel cell system (8) are connected to the input of the DC boost station (13), and the output of the DC boost station (13) is connected to the grid (11).
4. The offshore wind energy base hydrogen production and energy storage system according to claim 1, further comprising an offshore hydrogen energy transfer passage (701), an offshore hydrogen energy distribution platform (702) and an offshore hydrogenation platform (703) which are in communication with the hydrogen storage system (7).
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| CN202021636618.4U CN212627177U (en) | 2020-08-07 | 2020-08-07 | Hydrogen production and energy storage system for offshore wind power energy base |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113315242A (en) * | 2021-05-31 | 2021-08-27 | 天津大学 | Virtual wind abandoning-hydrogen production combination for promoting wind abandoning consumption based on hydrogen energy economy |
| CN114374220A (en) * | 2021-12-03 | 2022-04-19 | 中国电建集团华东勘测设计研究院有限公司 | Electrochemical cell-water electrolysis hydrogen production-hydrogen storage-hydrogen fuel cell coupling energy storage system and control method |
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2020
- 2020-08-07 CN CN202021636618.4U patent/CN212627177U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113315242A (en) * | 2021-05-31 | 2021-08-27 | 天津大学 | Virtual wind abandoning-hydrogen production combination for promoting wind abandoning consumption based on hydrogen energy economy |
| CN114374220A (en) * | 2021-12-03 | 2022-04-19 | 中国电建集团华东勘测设计研究院有限公司 | Electrochemical cell-water electrolysis hydrogen production-hydrogen storage-hydrogen fuel cell coupling energy storage system and control method |
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