CN112398160A - Offshore wind power direct current grid-connected system platform - Google Patents
Offshore wind power direct current grid-connected system platform Download PDFInfo
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- CN112398160A CN112398160A CN201910707650.2A CN201910707650A CN112398160A CN 112398160 A CN112398160 A CN 112398160A CN 201910707650 A CN201910707650 A CN 201910707650A CN 112398160 A CN112398160 A CN 112398160A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/71—Power-operated mechanisms for wings with automatic actuation responsive to temperature changes, rain, wind or noise
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/72—Power-operated mechanisms for wings with automatic actuation responsive to emergency conditions, e.g. fire
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
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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
Abstract
The application discloses an offshore wind power direct current grid-connected system platform for an offshore wind farm, which comprises a main system sub-platform, an auxiliary system sub-platform and one or more gallery bridges. The main system sub-platform comprises a grid-connected system and power transmission conversion equipment. The auxiliary system sub-platform includes a supportive auxiliary device. The corridor bridge is used for physically and electrically connecting the two platforms and has a fireproof function. According to the scheme, through technical integration and optimization, the original large offshore platform is split into two sub-platforms which are easy to construct, the size of a single offshore platform is reduced, the weight of the single offshore platform is reduced, and the manufacturing cost and the offshore construction difficulty are reduced; and the personnel living and working area is arranged on the grid-connected auxiliary system sub-platform, and an isolation measure is arranged between the personnel living and working area and the grid-connected system main platform part, so that the safety is better.
Description
Technical Field
The application belongs to the field of power transmission of power systems, and mainly relates to a gallery bridge and an offshore wind power direct current grid-connected system platform which is used for arranging a wind power direct current grid-connected system and uses the gallery bridge.
Background
The power of the offshore wind farm is sent to the land power grid in an alternating current mode and a direct current mode. The alternating current transmission mode uses a power frequency alternating current submarine cable to transmit the wind power electric energy to the land. The transmission scheme has the advantages of simple structure and lower cost, and is mainly suitable for sending out the offshore wind power plant.
Open sea wind power resources are wider and more stable, and offshore wind power plants gradually develop towards the deep open sea direction in order to obtain more offshore wind power resources. When the distance between the wind power plant and the shore exceeds 60km and the wind power plant enters a generalized open sea area, the cost performance of the wind power alternating current sending mode is gradually lost along with the improvement of electric energy loss, reactive compensation difficulty and overall manufacturing cost, and the direct current transmission mode becomes an optimal option. The direct current transmission mode converts wind power alternating current electric energy into direct current electric energy through a converter, the direct current electric energy is transmitted to a shore converter station with low loss by means of a direct current submarine cable, and then the direct current electric energy is converted into alternating current electric energy which is connected into a power grid. The direct current transmission mode, particularly the flexible direct current transmission mode, has strong fault ride-through and fault isolation capabilities and better stability besides small loss and large transmission capacity, and can realize comprehensive control of voltage, frequency control and the like of an offshore wind power plant and improve the whole wind power grid-connected quality.
The existing typical scheme of the offshore wind power direct current grid-connected system platform adopts a single-platform design scheme, and the existing technical scheme has the following defects: (1) the design of a single platform scheme is adopted, and the platform is large in size and general in stability; (2) with the further increase of the system capacity, the offshore platform volume increases suddenly, and the construction cost and the construction difficulty are obviously increased; (3) the offshore distance of the platform is more and more far, personnel can reside at irregular time, the single platform design cannot physically separate a personnel activity area from equipment, and a converter valve transformer and oil-containing equipment in an alternating current field have fire or explosion risks, so that the personal safety of operators is threatened.
Disclosure of Invention
In view of the above drawbacks of the background art, the present application aims to provide a wind power direct current grid-connected system platform. The platform is divided into a main system sub-platform and an auxiliary system sub-platform, and is electrically and physically connected through a gallery bridge. And arranging a personnel living and working area on the grid-connected auxiliary system sub-platform, and establishing an isolation measure between the personnel living and working area and the grid-connected system main platform part. The purposes of improving safety and reducing manufacturing cost and construction difficulty can be achieved.
The embodiment discloses an offshore wind power direct current grid-connected system platform, includes: the main system sub-platform comprises a grid-connected system and power transmission conversion equipment; an auxiliary system sub-platform independent of the main system sub-platform and including a supportive auxiliary device; one or more gallery bridges connecting the main system sub-platform and the auxiliary system sub-platform, the gallery bridges physically and electrically connecting the main system sub-platform and the auxiliary system sub-platform.
Wherein, the gallery bridge includes: a pedestrian passageway; the fireproof doors are arranged at two ends of the pedestrian passage and used for blocking the pedestrian passage and the main system sub-platform as well as the pedestrian passage and the auxiliary system sub-platform; the pipeline channel is arranged below the pedestrian channel and is used for connecting the main system sub-platform and the auxiliary system sub-platform; the cable channel is arranged below the pedestrian channel and electrically connects the main system sub-platform and the auxiliary system sub-platform; and fire-proof partitions are arranged between the cable channel and the pedestrian channel and between the cable channel and the pipeline channel respectively.
The fireproof door comprises a temperature sensor and/or a smoke sensor, and is in communication connection with a switch of the fireproof door, wherein the temperature sensor senses a preset threshold temperature or the smoke sensor senses a preset threshold smoke concentration, and sends a closing signal to the fireproof door switch, so that the fireproof door is closed.
The fireproof door further comprises a fire spray port, and the fire spray port is installed at the top of the fireproof door.
The fire-fighting spraying port is in communication connection with the temperature sensor and/or the smoke sensor, and when the temperature sensor senses a preset threshold temperature or the smoke sensor senses a preset threshold smoke concentration, a trigger signal is sent to the fire-fighting spraying port, so that the fire-fighting spraying port is opened.
The auxiliary system sub-platform is connected with the pipeline through a detachable flange, is connected with the detachable steel cable of the pedestrian channel and is connected with the detachable aviation plug of the cable channel.
The grid-connected system in the main system sub-platform comprises: the device comprises a direct current submarine cable, an alternating current submarine cable, a direct current bus and a bus bar; the power transmission conversion apparatus includes: connecting a transformer, a voltage source type converter and system safety auxiliary equipment; the grid-connected system and the power transmission conversion equipment transmit the power collected by the offshore wind farm to an underground cable for transmission when the high-voltage stable direct current state is achieved.
Optionally, the connection transformer is a three-winding transformer or a four-winding transformer, one winding of the three-winding transformer or the four-winding transformer providing power to the supportive auxiliary device on the auxiliary system sub-platform through the cable channel of the corridor bridge.
Optionally, the grid-connected system main platform includes an ac switchgear and a dc switchgear, where the ac switchgear and the dc switchgear are respectively located on the bus bar and the dc bar, and the ac switchgear and the dc switchgear are air-insulated open-type equipment or gas-insulated metal-enclosed switchgear.
The supportive auxiliary device comprises: seawater treatment and cooling equipment, auxiliary power supply equipment, heating and ventilation equipment, maintenance equipment, a person pod and escape equipment. The devices can be used by workers for selecting work and life.
In summary, although there are various equipment connection modes for the offshore direct current grid-connected wind power system according to different use conditions, in any mode, the mode of isolating the main platform of the grid-connected system with a high risk coefficient from the personnel living work area and establishing an isolation measure between the two platforms can be adopted, so as to achieve the aims of achieving lower manufacturing cost, reducing construction difficulty and ensuring personnel safety on the basis of completing the original wind power generation current conversion and transportation purpose.
Drawings
The following description of the embodiments of the present invention refers to the accompanying drawings. The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.
Fig. 1 is a schematic plan view of the first layer device in the first embodiment.
Fig. 2 is a schematic plan view of the second layer device in the first embodiment.
Fig. 3 is a schematic plan view of the third layer apparatus in the first embodiment.
Fig. 4 is a front sectional view of the first embodiment.
Fig. 5 is a left side sectional view of the first embodiment.
Fig. 6 is a schematic view of a gallery bridge of the first embodiment.
Fig. 7 is a cross-sectional view a-a of the gallery bridge of the first embodiment.
Detailed Description
The following detailed description of the present application, taken in conjunction with the accompanying drawings and examples, is provided to enable the invention and its various aspects and advantages to be better understood. However, the specific embodiments and examples described below are for illustrative purposes only and are not limiting of the present application. First embodiment
Fig. 1, 2, 3, 4 and 5 are schematic diagrams of an offshore wind power direct current grid-connected system platform according to a first embodiment of the application. Fig. 1, fig. 2, and fig. 3 are schematic plan views of first, second, and third layer devices in a first embodiment of the present application. Fig. 4 is a front sectional view of the first embodiment. Fig. 5 is a left side sectional view of the first embodiment. Fig. 6 and 7 are schematic views of a gallery bridge, with fig. 6 being a schematic view of the gallery bridge and fig. 7 being a cross-sectional view a-a of the gallery bridge.
As shown in fig. 4, the offshore wind power direct current grid-connected system platform disclosed in this embodiment includes a main system sub-platform a, an auxiliary system sub-platform B, and a gallery bridge C. The main system sub-platform A comprises a grid-connected system and power transmission conversion equipment. And the auxiliary system sub-platform is independent from the main system sub-platform and comprises equipment required by life and work of personnel. And one or more corridor bridges for connecting the main system sub-platform and the auxiliary system sub-platform, namely the main system sub-platform A and the auxiliary system sub-platform B are connected through two corridor bridges C in the embodiment. The gallery bridge physically and electrically connects the main system sub-platform and the auxiliary system sub-platform. The number of gallery bridges may be determined according to the actual system platform condition, and is not limited herein.
As shown in fig. 4 and 5, the main system sub-platform a may be formed of multiple device planes, illustrated as three device planes, and designed to be unmanned, for convenience of wiring. The offshore grid-connected auxiliary system sub-platform B is designed according to the person on duty, namely, the personnel working and living areas are arranged on the offshore grid-connected auxiliary system sub-platform. Wherein reference to "multi-layer device plane" in the main system sub-platform a is merely for convenience in describing the present invention and for simplicity in description, it is not intended to indicate or imply that the referenced apparatus or component must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be taken as limiting the present invention.
As shown in fig. 1 and 5, the first tier equipment includes 220kv ac sea cable a1 and dc cable a 7. The 220kv alternating current submarine cable A1 is installed in two parts: one part of the main system sub-platform A is arranged at one side of the main system sub-platform A, is connected with a wind power plant and is used for the collected initial current to pass through; one part is arranged on the first layer of equipment platform and is used for alternating current in the system to pass through. The dc cable a7 needs to be installed at the other side of the 220kv ac submarine cable a1 for convenient circuit laying. Ac cable a1 and dc cable a7 may be fed with ac and dc current, respectively.
As shown in fig. 2 and 5, the second-layer equipment of the offshore grid-connected main system sub-platform a comprises a voltage source type converter a5 and a direct-current bus a 6. The voltage source type converter A5 is a device which is composed of single or multiple converter bridges and carries out AC and DC conversion. The dc bus a6 allows the dc current to be collected. The voltage source inverter a5 and the dc bus a6 may be arranged in a plurality, two each shown, side by side.
As shown in fig. 3 and 5, the third-layer equipment of the offshore grid-connected main system sub-platform a comprises an alternating current bus bar a2, a high-voltage shunt reactor A3, a transformer a4 and control protection and auxiliary equipment A8. The return bus A2 has large flux and can be used as a main line in a parallel circuit to play a role in collecting current. The high voltage shunt reactor a3 has a number of functions that improve the reactive power related operating conditions of the power system. The transformer a4 is a commonly used device for changing an ac voltage using the principle of electromagnetic induction. The control protection and auxiliary device A8 mainly plays a role in protecting the normal operation of auxiliary devices.
The operation principle of the system is as follows, the system is an offshore wind power direct current grid-connected system platform with the scale of 1000MW +, and an alternating current end of the system is connected with 3 offshore wind power plants with 300 MW. During operation, the power of the 3 offshore wind farms is respectively sent to an offshore grid-connected main system sub-platform A through a 220kV alternating current sea cable A1, and is subjected to voltage boosting and converged to a bus bar A2 through a transformer A4. The voltage source converter a5 takes power from the ac bus a2 and converts the power into dc, and the dc is sent to the land through the dc bus a6 and the dc submarine cable a7 after passing through the high-voltage shunt reactor A3 and the control protection and auxiliary equipment A8 to make the current reach a stable state. The high-voltage shunt reactor A3 can improve the operation state of reactive power of the power system, namely, the functions of reactive power compensation and current stabilization are achieved; the control protection and auxiliary device A8 may provide over-current protection and the like.
It should be noted that the ac bus bar a2 and the dc bus bar a6 on the offshore grid-connected main system sub-platform a may be configured with ac field switching devices and dc field switching devices to implement the functions of system commissioning, decommissioning, state conversion, isolation, and maintenance; and air insulation open equipment or gas insulation metal closed switch equipment can be adopted to ensure that the switch is not corroded and has safety.
The transformer A4 uses a double-winding transformer or a three-winding transformer or a four-winding transformer. The third winding as a backup power supply is removed, and the other windings are all used for wind power generation current transmission. And the transformer A4 and the voltage source type converter A5 use an oil immersion air cooling mode or a seawater cooling mode to ensure safe temperature. The connection between the bus bar A2 and the voltage source type converter A5 adopts a cable or a gas insulated metal closed power transmission line.
As shown in fig. 1 and 4, the offshore grid-connected auxiliary system sub-platform B comprises seawater treatment and cooling equipment B1, auxiliary power supply equipment B2, heating and ventilation equipment B3, maintenance equipment B4, manned gondola B5, escape equipment B6 and escape equipment B7. The equipment can provide certain life necessary materials for workers on the auxiliary system sub-platform B, such as drinking water, power supply and heating requirements. Also provides a necessary device for equipment maintenance and at least three escape devices. Wherein the auxiliary power supply power of the auxiliary power supply apparatus B2 may be obtained from the third winding of the transformer a4, or by providing a separate auxiliary power supply transformer on the bus bar a 2. The facilities on the auxiliary system sub-platform B may be changed as needed according to the number of workers.
As shown in fig. 6 and 7, there are two gallery bridges C, each of which includes a pedestrian passageway C1, a fire door C2, fire sprinklers C3, a pipeline passageway C4, a cable passageway C5, and at least one layer of fire-resistant insulation C6.
As shown in fig. 6 and 7, the corridor bridge C and the auxiliary system sub-platform B are detachably connected. In this embodiment, the cable is a prefabricated cable, and the cable connector is a prefabricated plug. The cable is switched over at the disconnection point by means of an aircraft plug. When a fire disaster happens and the cable needs to be disconnected, the aviation plug can be quickly separated from the cable. And the pedestrian passageway C1 is in cable type physical fixed detachable connection with the auxiliary system sub-platform B. And the pipeline joints are connected by flanges. When a fire disaster happens, the pedestrian passageway C1 and the auxiliary system sub-platform B are disconnected, the pipeline flange is disconnected, and the gallery bridge C and the auxiliary system sub-platform B are separated. Of course, there may be a plurality of connection methods between the gallery bridge C and the auxiliary system sub-platform B, as long as the two can be separated when a fire occurs, which is not exemplified herein.
As shown in fig. 6 and 7, the line channel C4 and the cable channel C5 are located below the pedestrian channel C1. A fireproof partition C6 is arranged between the pedestrian passage C1 and the cable passage C5. In this embodiment, the conduit channel C4 and the cable channel C5 are parallel with a fire break C6 in between. The cable channel C5 is used to connect the electrical connections of the two platforms, for example, if the auxiliary power supply on the auxiliary system sub platform needs to be obtained from the transformer on the main system sub platform, the cable channel needs to be arranged on the corridor bridge. The line passage C4 is used for circulating cooling water. The positions of the pipeline channel C4 and the cable channel C5 are only required to be below the pedestrian channel, and the two platforms are electrically and pipeline connected, and the specific positions should not be taken as limitations of the present embodiment.
As shown in fig. 6, the fire door C2 is located at two ends of the pedestrian passageway C1, and is used for blocking the pedestrian passageway C1 from the main system sub-platform a, the pedestrian passageway C1 from the auxiliary system sub-platform B. The fire door C2 includes a temperature sensor C21 and a smoke sensor C22 (at least one of which is at least one) and is communicatively connected to a switch of the fire door C2. The fire door C2 may be controlled manually or automatically. The specific automatic control method is that when the temperature sensor C21 senses a preset threshold temperature or the smoke sensor C22 senses a preset threshold smoke concentration, a closing signal is sent to the fire door C2 switch to close the fire door. Wherein the predetermined threshold temperature and the threshold smoke concentration are values well known to those skilled in the art at the time of fire occurrence.
As shown in fig. 7, the top of the fire rated door also includes fire sprinkler C3 and is communicatively connected to a temperature sensor C21 and a smoke sensor C22. When a fire disaster occurs, the temperature sensor C31 senses a preset threshold temperature, or the smoke sensor C32 senses a preset threshold smoke concentration, the fire protection sprinkler C3 automatically sprays water to the fire door C2. The fire door C2 is prevented from losing efficacy due to overhigh temperature, and the effects of fire extinguishing and temperature reduction are achieved. The arrangement can ensure that personnel on the auxiliary system sub-platform are not injured when the main system sub-platform experiences oil-fire accidents.
According to the embodiment, the main platform of the oil-containing grid-connected system with a high risk coefficient is isolated from the area of the personnel living and working area, and an isolation measure is set between the two platforms, so that better safety is guaranteed on the basis of finishing the original collection of wind power generation current.
It should be noted that there are various equipment connection modes of the offshore direct current grid-connected wind power system according to different use conditions, but in any mode, the mode of separating the personnel working and living area and the oil-containing main system platform set in the invention can be adopted to achieve the purposes of lower cost, lower difficulty and ensuring personnel arrangement.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention are intended to be covered by the scope of the invention.
Claims (10)
1. An offshore wind power direct current grid-connected system platform, comprising:
the main system sub-platform comprises a grid-connected system and power transmission conversion equipment;
an auxiliary system sub-platform independent of the main system sub-platform and including a supportive auxiliary device;
one or more gallery bridges connecting the main system sub-platform and the auxiliary system sub-platform, the gallery bridges physically and electrically connecting the main system sub-platform and the auxiliary system sub-platform.
2. The offshore wind power direct current grid-connected system platform of claim 1, wherein the gallery bridge comprises:
a pedestrian passageway;
the fireproof doors are arranged at two ends of the pedestrian passage and used for blocking the pedestrian passage and the main system sub-platform as well as the pedestrian passage and the auxiliary system sub-platform;
the pipeline channel is arranged below the pedestrian channel and is used for connecting the main system sub-platform and the auxiliary system sub-platform;
and the cable channel is arranged below the pedestrian channel and electrically connected with the main system sub-platform and the auxiliary system sub-platform, and a fireproof partition is arranged between the cable channel and the pedestrian channel and between the cable channel and the pipeline channel respectively.
3. The offshore wind power direct current grid-connected system platform of claim 2, wherein the fire door comprises a temperature sensor and/or a smoke sensor and is in communication with a switch of the fire door, and when the temperature sensor senses a preset threshold temperature or the smoke sensor senses a preset threshold smoke concentration, a closing signal is sent to the fire door switch to close the fire door.
4. The offshore wind power grid connected system platform of claim 3, wherein the fire door further comprises a fire sprinkler port mounted on top of the fire door.
5. The offshore wind power direct current grid-connected system platform of claim 4, wherein the fire sprinkler port is in communication with the temperature sensor and/or the smoke sensor, and when the temperature sensor senses a preset threshold temperature or the smoke sensor senses a preset threshold smoke concentration, a trigger signal is sent to the fire sprinkler port to open the fire sprinkler port.
6. An offshore wind power direct current grid connected system platform according to any of the claims 2-5, wherein the auxiliary system sub-platform and the pipeline are connected to each other by detachable flanges and are detachably physically connected to the manway and to the cable way detachable plug.
7. The offshore wind power direct current grid-connected system platform of claim 1, wherein the grid-connected system comprises: the device comprises a direct current submarine cable, an alternating current submarine cable, a direct current bus and a bus bar; the power transmission conversion apparatus includes: connecting a transformer, a voltage source type converter and system safety auxiliary equipment; the grid-connected system and the power transmission conversion equipment transmit the power collected by the offshore wind farm to an underground cable for transmission when the high-voltage stable direct current state is achieved.
8. The offshore wind power direct current grid connected system platform of claim 7, wherein the connecting transformer is a three-winding transformer or a four-winding transformer, one winding of which provides power to the supporting auxiliary equipment on the auxiliary system sub-platform through the cable channel of the corridor bridge.
9. The offshore wind power direct current grid-connected system platform of claim 7, wherein the grid-connected system main platform comprises an alternating current switchgear and a direct current switchgear, the alternating current switchgear and the direct current switchgear are respectively located on the busbar and the direct current busbar, and the alternating current switchgear and the direct current switchgear are air-insulated open-type equipment or gas-insulated metal-enclosed switchgear.
10. The offshore wind power direct current grid-connected system platform of claim 1, wherein the supporting auxiliary equipment comprises: seawater treatment and cooling equipment, auxiliary power supply equipment, heating and ventilation equipment, maintenance equipment, a person pod and escape equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910707650.2A CN112398160A (en) | 2019-08-01 | 2019-08-01 | Offshore wind power direct current grid-connected system platform |
| PCT/CN2020/092986 WO2021017602A1 (en) | 2019-08-01 | 2020-05-28 | Offshore wind power direct current grid-connected system platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910707650.2A CN112398160A (en) | 2019-08-01 | 2019-08-01 | Offshore wind power direct current grid-connected system platform |
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| CN112398160A true CN112398160A (en) | 2021-02-23 |
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| CN201910707650.2A Pending CN112398160A (en) | 2019-08-01 | 2019-08-01 | Offshore wind power direct current grid-connected system platform |
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| WO (1) | WO2021017602A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840089B (en) * | 2012-08-29 | 2015-01-21 | 华北电力大学 | Marine wind power generator set-based plug-in type wave energy power generation system |
| CN102935880B (en) * | 2012-11-26 | 2015-07-15 | 山东大学 | Removable new energy marine industry public platform |
| CN104652864B (en) * | 2015-02-13 | 2017-01-11 | 国家电网公司 | Offshore platform for offshore wind power flexible direct current connecting-in system |
| JP2017089447A (en) * | 2015-11-06 | 2017-05-25 | 株式会社日立製作所 | Construction method for offshore wind turbine, offshore wind turbine and offshore wind power generator facility |
| CN106218827B (en) * | 2016-07-28 | 2018-03-16 | 太重（天津）滨海重型机械有限公司 | Offshore wind farm O＆M supports platform |
| CN109510246A (en) * | 2019-01-07 | 2019-03-22 | 南京南瑞继保电气有限公司 | A kind of offshore wind farm direct current grid-connected system |
| CN210380275U (en) * | 2019-08-01 | 2020-04-21 | 南京南瑞继保电气有限公司 | Offshore wind power direct current grid-connected system platform |
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2019
- 2019-08-01 CN CN201910707650.2A patent/CN112398160A/en active Pending
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