CN211958782U - Comprehensive energy system suitable for offshore wind power plant and manned island - Google Patents
Comprehensive energy system suitable for offshore wind power plant and manned island Download PDFInfo
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- CN211958782U CN211958782U CN202020235524.XU CN202020235524U CN211958782U CN 211958782 U CN211958782 U CN 211958782U CN 202020235524 U CN202020235524 U CN 202020235524U CN 211958782 U CN211958782 U CN 211958782U
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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
- Y02E60/30—Hydrogen technology
- Y02E60/34—Hydrogen distribution
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Abstract
The utility model relates to an integrated energy system, especially an integrated energy system suitable for offshore wind farm and someone island, its structural feature lies in, including offshore wind energy subsystem (containing offshore wind farm and booster station, booster station communication equipment, offshore sea water desalination equipment, offshore wind power hydrogen manufacturing equipment), island energy subsystem (containing island little electric wire netting, island water supply network, island air feed network, island communication network), fresh water delivery passageway, hydrogen delivery passageway, transmission of electricity and communication channel. Has the advantages that: the comprehensive energy system can simultaneously improve the power supply reliability of the offshore wind power booster station and the island microgrid, meet the water, gas and communication requirements of the island, intensively utilize the field resources of the booster station and the island, save facility investment of electricity, water, gas, communication and the like, realize nearby utilization of wind power, reduce electric energy loss, reduce environmental pollution and promote the coordinated development of offshore wind power and the island.
Description
Technical Field
The utility model relates to an integrated energy system, especially an integrated energy system suitable for offshore wind farm and someone island.
Background
Offshore wind power is an important direction for development of renewable energy as a research hotspot of global wind power development. With the improvement of the performance of the wind turbine generator, the development of the construction technology and the increase of the development strength, the offshore distance of the wind power plant is more and more far, even more than one hundred kilometers. At present, the output of an offshore wind farm is mainly sent out through a long-distance high-voltage submarine cable connected to a mainland main power grid after being collected by an offshore booster station, and the concentrated transmission of the offshore wind farm to the mainland main power grid has the following problems:
1) with the increasing size of offshore wind farms, the installed scale of wind farms may exceed millions of kilowatts or even tens of millions of kilowatts. If all the output power of the offshore wind power is transmitted to a main continental power grid in a centralized way, a plurality of submarine power transmission channels need to be added in a matched way, and the use and occupation area of the offshore wind power is large; the large-scale wind power centralized access needs to strengthen a main power grid of the continental land and remotely transmits power to a load power utilization center, so that the electric energy loss and the matching investment of the power grid are large.
2) During the outage period of the offshore booster station and a main power grid connection line of a continental land due to maintenance or faults and the like, the booster station needs to be provided with an uninterruptible power supply such as a diesel set or a UPS (uninterrupted power supply), and only can meet the partial emergency power utilization requirements of the booster station and occupy the site of the booster station.
On the other hand, the sea island is mostly far away from the continental shoreline, the construction difficulty and cost for independently laying a submarine cable connected to a mainland main power grid or a communication network for the sea island are considered to be high, the resources such as electricity, water, gas and the like required by daily production and life of residents of the sea island come from a diesel generator set, a roof photovoltaic and other distributed power supplies, and the problem of supplying materials such as fresh water and the like is solved through long-distance transportation of ships or long-distance pipeline transportation and other ways, so that the problems of serious environmental pollution, difficult transportation and transportation, overhigh cost and the like exist, and much inconvenience and difficulty are caused to the life and development of the residents of the.
Disclosure of Invention
An object of the utility model is to provide a weak point according to prior art and provide an effectively improve the power supply reliability, practice thrift the investment, reduce the electric energy loss, improve the comprehensive energy system who is applicable to offshore wind-powered electricity generation field and someone island of intensive utilization ratio and island place resource.
The purpose of the utility model is realized through the following ways:
the integrated energy system is characterized in that a sea island microgrid and a sea island communication network are arranged on the manned sea island, the integrated energy system also comprises a photoelectric composite sea cable which is erected between the offshore wind energy subsystem and the manned sea island in a set area, the booster station is correspondingly connected with the sea island microgrid through the photoelectric composite sea cable, and an optical fiber signal communication end of the booster station communication equipment is correspondingly connected with the sea island communication network through the photoelectric composite sea cable.
The set area is a set of manned islands which are set by taking the offshore wind and electricity energy subsystem as a center and considering the condition of laying the photoelectric composite submarine cable. Therefore, the offshore wind and electricity energy subsystem is organically connected with the manned islands with the submarine cable laying condition around, the electric energy generated by the offshore wind and electricity energy subsystem can supply power and supply network (communication) for the manned islands around besides the main power grid on the continental land, on one hand, the offshore wind and electricity energy subsystem can supply partial energy nearby, the transmission to the main power grid on the continental land is reduced, and the equipment and construction cost is greatly reduced; the electric energy consumption can be effectively reduced by supplying the electric energy nearby, the resources of the booster station and the island field are effectively utilized intensively, and the utilization rate of the energy subsystem is improved; on the other hand, the power supply and communication of the manned island can greatly improve the operation reliability, and meanwhile, the booster station of the energy subsystem can be reversely powered for a short time. Therefore, the micro-grid on the manned island can be normally supplied with power by the wind power energy subsystem, so that the scale of a self-contained power supply (such as a diesel engine and the like) required by the island is reduced, and when the booster station needs to be overhauled, the micro-grid on the manned island supplies power to the booster station, the energy supply reliability of the booster station is greatly improved, the emergency power supply required to be configured by the booster station can be reduced, the construction cost of a diesel engine set and a UPS (uninterrupted power supply) is reduced, the arrangement scale of the booster station is effectively reduced, and the investment is saved.
The utility model discloses can further specifically do:
the sea water desalination device is powered by the booster station and is connected to a water supply system of the manned island in the set area through the fresh water conveying channel.
The sea water desalination equipment is arranged in the wind power energy subsystem and is supplied to the manned island through the conveying channel, so that the daily production and domestic water requirements of the manned island are met nearby, the fresh water conversion or transportation cost required by the island is saved, the offshore wind power energy is further utilized, the nearby utilization of wind power is realized, the electric energy loss is reduced, and the utilization rate of the booster station is improved.
The system also comprises a hydrogen conveying channel which is erected between the offshore wind power energy subsystem and the manned island in the set area, fresh water hydrogen production equipment is also arranged in the offshore wind power energy subsystem, is powered by the booster station and is connected with the seawater desalination equipment, and the fresh water hydrogen production equipment is connected to the gas supply system of the manned island in the set area through the hydrogen conveying channel.
Therefore, hydrogen production equipment is built near a booster station of a wind power plant and seawater desalination equipment, and offshore wind power is used for directly supplying power nearby; and the produced hydrogen can also be conveyed to a continental air supply network, so that the booster station is further intensively utilized, the air supply for the island is ensured, and the investment is saved.
Therefore, the utility model discloses a main points lie in: the offshore wind power station and the booster station directly utilize the output of offshore wind power to desalinate seawater and produce hydrogen while realizing power generation and power collection and delivery, and meet the requirements of electricity, water, gas and communication required by daily production and life of surrounding manned islands through electricity, water, gas and communication channels between the offshore wind power energy subsystem and the manned island energy subsystem. The comprehensive energy system can simultaneously improve the power supply reliability of the offshore wind power booster station and the island microgrid, meet the water, gas and communication requirements of the island, intensively utilize the field resources of the booster station and the island, save facility investment of electricity, water, gas, communication and the like, realize nearby utilization of wind power, reduce electric energy loss, reduce environmental pollution and promote the coordinated development of offshore wind power and the island.
Drawings
Fig. 1 is a schematic diagram of a frame structure of an integrated energy system suitable for offshore wind farm and manned sea island.
The present invention will be further described with reference to the following examples.
Detailed Description
The best embodiment is as follows:
referring to fig. 1, the integrated energy system suitable for offshore wind farms and manned islands comprises the following components:
(1) offshore wind electronic energy system comprising: offshore wind power plants, booster stations, booster station communication equipment, offshore seawater desalination equipment and offshore wind power hydrogen production equipment.
(2) A manned sea-island energy subsystem comprising: island micro-grid, island water supply network, island air supply network, island communication network.
(3) A fresh water transfer passage comprising: fresh water conveying pipelines or ships and other transportation means between the offshore wind electronic energy system and a mainland main power grid and between the offshore wind electronic energy system and the island energy subsystem.
(4) A hydrogen gas delivery channel comprising: and hydrogen conveying pipelines or ships and other transportation means are arranged between the offshore wind electronic energy system and a mainland main power grid and between the offshore wind electronic energy system and the island energy subsystem.
(5) Power transmission and communication channels comprising: photoelectric composite submarine cables and corollary equipment are arranged between the offshore wind energy subsystem and a mainland main power grid and between the offshore wind electronic energy system and the island energy subsystem.
The following further description is made in conjunction with the operation of the integrated energy system applicable to offshore wind farms and manned islands:
(1) power supply: the offshore wind power station and the booster station are connected to the island microgrid through photoelectric composite submarine cables, so that offshore wind power output can meet the power consumption requirements of a plurality of surrounding islands nearby; meanwhile, during the outage period of the offshore booster station and a mainland main power grid connection line, the island micro-grid supplies power to the booster station of the wind power plant, and the requirements of maintenance, operation and maintenance of the booster station of the wind power plant are met. Has the advantages that: the scale of a self-contained power supply (such as a diesel engine, distributed photovoltaic and the like) required by the island is reduced, the communication line between the island micro-grid and a mainland main grid is saved, the island site resources are intensively utilized, the environmental pollution is reduced, and the investment of power supply facilities is saved; the size of emergency power supplies (such as diesel units, UPS and the like) required to be configured by the booster station is reduced, the arrangement size of the booster station is reduced, and investment is saved.
(2) Water supply: building seawater desalination equipment near a booster station of a wind power plant, and directly supplying power nearby by offshore wind power; the prepared fresh water is used as a raw material for producing hydrogen by wind power and is nearby transmitted to the island water supply network through a fresh water transmission channel. Has the advantages that: the sea water desalination facility or the long-distance fresh water transportation cost required to be built in the island is saved, the nearby utilization of wind power is realized, the electric energy loss is reduced, the booster station and the island field are intensively utilized, the fresh water supply of the island is ensured, and the investment is saved.
(3) Air supply: fresh water hydrogen production equipment is built near a booster station and seawater desalination equipment of a wind power plant, and offshore wind power is used for directly supplying power nearby; the prepared hydrogen is transported to a continental air supply network through a transportation channel on one hand, and is transported to a sea island air supply network through a hydrogen transportation channel nearby on the other hand. Has the advantages that: the wind power utilization is realized nearby, the electric energy loss is reduced, the booster station and the island site are intensively utilized, the gas supply for the island is ensured, and the investment is saved.
(4) Communication: after the output of the wind turbine generator is collected by the offshore wind farm booster station, the functions of power transmission and communication between the booster station and a mainland main power grid are simultaneously realized through the photoelectric composite submarine cable. Therefore, the wired communication between the island and the continent is realized by using the communication channels established by the photoelectric composite submarine cables between the island and the offshore wind power booster station and between the offshore wind power booster station and the continent main power grid and by using the booster station communication equipment as a contact hub. Has the advantages that: the investment of island communication facilities is saved, the communication network quality of island users is improved, and the development of islands is promoted.
(5) The expandable combination mode: the offshore wind-electricity energy subsystem can be simultaneously combined with a plurality of island energy subsystems, and the functional requirements of electricity, water, gas, communication and the like required in each island energy subsystem can be combined at will.
The part of the utility model which is not described is the same as the prior art.
Claims (3)
1. The comprehensive energy system is suitable for offshore wind power plants and manned islands, and comprises an offshore wind power energy subsystem and manned island energy subsystems, wherein the offshore wind power energy subsystem comprises a booster station, and an offshore wind power plant and booster station communication equipment which are respectively connected with the booster station.
2. The integrated energy system for offshore wind farms and manned islands according to claim 1, further comprising a fresh water delivery channel, which is arranged between the offshore wind energy subsystem and the manned island in the set area, wherein a seawater desalination device is arranged in the offshore wind energy subsystem, the seawater desalination device is powered by the booster station, and the seawater desalination device is connected to the water supply system of the manned island in the set area through the fresh water delivery channel.
3. The integrated energy system for offshore wind farm and manned island according to claim 1, further comprising a hydrogen gas transmission channel, which is erected between the offshore wind energy subsystem and manned island in the set area, wherein a fresh water hydrogen production device is further provided in the offshore wind energy subsystem, which is powered by the booster station and connected to the seawater desalination device, and the fresh water hydrogen production device is connected to the gas supply system of manned island in the set area through the hydrogen gas transmission channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020235524.XU CN211958782U (en) | 2020-03-02 | 2020-03-02 | Comprehensive energy system suitable for offshore wind power plant and manned island |
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| CN202020235524.XU CN211958782U (en) | 2020-03-02 | 2020-03-02 | Comprehensive energy system suitable for offshore wind power plant and manned island |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031154A (en) * | 2021-11-19 | 2022-02-11 | 东北电力大学 | Offshore wind power delivery method utilizing seawater desalination technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031154A (en) * | 2021-11-19 | 2022-02-11 | 东北电力大学 | Offshore wind power delivery method utilizing seawater desalination technology |
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