CN104320006A - Converter station of maritime flexible direct current transmission system - Google Patents
Converter station of maritime flexible direct current transmission system Download PDFInfo
- Publication number
- CN104320006A CN104320006A CN201410541421.5A CN201410541421A CN104320006A CN 104320006 A CN104320006 A CN 104320006A CN 201410541421 A CN201410541421 A CN 201410541421A CN 104320006 A CN104320006 A CN 104320006A
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- room
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- rooms
- converter station
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/04—Transformer houses; Substations or switchgear houses
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Rectifiers (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to a converter station of a maritime flexible direct current transmission system. The converter station is characterized by comprising a combined steel structure building which is transversely divided into an upper end part and a lower end part, wherein the upper end part is longitudinally divided into three electrical rooms, the middle electrical room is a direct current field, and the two electrical rooms on the two sides of the direct current field are converter valve halls; the lower end part is longitudinally divided into five electrical rooms, the middle electrical room is a converter station water-cooling equipment room which is divided into front and rear two parts by use of a cable shaft, each of the electrical rooms close to the two sides of the converter station water-cooling equipment room is longitudinally divided into front and rear end parts, each front end part of the electrical room is a control protection chamber, each rear end part of the electrical room is a storage battery chamber, and the two electrical rooms on the outermost sides are connection regions; two connection transformers are arranged at an interval on the outer side of the combined steel structure building and next to any one connection region. The converter station of the maritime flexible direct current transmission system can be widely applied to the flexible direct current transmission systems of the offshore oil platforms.
Description
Technical field
The present invention relates to a kind of flexible direct-current transmission system converter station, particularly about a kind of marine flexible direct-current transmission system converter station being applicable to offshore oil platform.
Background technology
Offshore oil platform generally adopts marine self power generation mode, by certainly build a power station and 35kV exchange submarine cable power to circumferential mesas, or by 35kV exchange submarine cable between certainly building a power station, realize power grid interlink.Along with region oil field development scale is increasing, offshore oilfield platform faces that self-built power station is huge, fuel gas source is not enough and the problem such as energy-saving and emission-reduction, and therefore realizing that land bulk power grid powers to offshore oil platform by Technology of HVDC based Voltage Source Converter will be following selection.
Current flexible direct current transmission converter station is mainly for land engineer applied, and land current conversion station adopts steel and concrete structure, due to not by space, area constraints, therefore arranges loose, does not limit equipment and building structure weight, also do not need integral hoisting simultaneously.But because offshore oil platform space is nervous, harsh environmental conditions (moist, salt fog), and current conversion station module needs integral hoisting, the lectotype selection of land current conversion station, to arrange and structural design is not suitable with offshore oil platform and applies.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of offshore oil platform that is applicable to, Compact modular, and marine flexible direct-current transmission system converter station safe and reliable to operation.
For achieving the above object, the present invention takes following technical scheme: a kind of marine flexible direct-current transmission system converter station, it is characterized in that: it comprises an associating steel building be made up of multiple function room, and described associating steel building is horizontally divided into upper and lower end two parts by structural beams and some steel plates; Upper part is longitudinally divided into three electric rooms by steel column and some steel plates; Wherein, intermediary electrical room is DC fields; Two electric rooms of described DC fields both sides are respectively valve hall, and valve hall described in two is symmetrical about described DC fields; End portion is longitudinally divided into five electric rooms by steel column and some steel plates; Wherein, intermediary electrical room is between current conversion station water cooling equipment, is longitudinally divided into front and back end two parts between described current conversion station water cooling equipment by a cable shaft, and described DC fields connects submarine cable by described cable shaft; Front and back end two parts between described current conversion station water cooling equipment are placed with cooling water circulating pump and reserved pipe interface respectively, wherein, described cooling water circulating pump connects the cooling water pipeline of converter valve in valve hall described in two, and described reserved pipe interface connects offshore oil platform pipe network system; Near between described current conversion station water cooling equipment, each electric room of both sides is longitudinally divided into front and back end two parts respectively, each fore-end electric room is respectively Control protection room, described in each, Control protection indoor are placed with station power supply panel, and described station power supply panel connects offshore oil platform electrical system; Each rear end part electric room is respectively between storage battery; Wherein, described in two described in Control protection room and two between storage battery respectively about symmetrical between described current conversion station water cooling equipment; Outermost two electric rooms are respectively attachment section, are placed with alternating-current electric equipment and oil-gas casing in attachment section described in each; Be positioned at the outside of described associating steel building and adjacent arbitrary described attachment section is arranged at intervals with two tietransformers, tietransformer described in each by oil-gas casing respectively with described alternating-current electric equipment connection in attachment section described in each; All be electrically connected by wall bushing mode with two attachment section between described DC fields, two valve hall, two Control protection rooms, two storage batterys.
The rear and front end of described associating steel building is provided with stair activity, and the bottom interval of described associating steel building is provided with some buttresses.
Described alternating-current electric equipment adopts GIS device.
Wall between described attachment section and two tietransformers adopts A60 fire compartment wall.
The present invention is owing to taking above technical scheme; it has the following advantages: 1, the present invention is owing to carrying out reasonable arrangement according to different electric equipment to floor height demand; make full use of the height in space; be provided with between two valve hall, two attachment section, two Control protection rooms, two storage batterys, between two water cooling equipments and DC fields; each electric room is compact; effectively save floor space; alleviate associating steel building weight; and the top layer deck of offshore oil platform can be lifted on as a whole, mounting means is flexible.2, the present invention is connected with offshore oil platform seawater pipe network system owing to reserving pipe interface in water cooling equipment, water-water-cooling pattern is adopted to lower the temperature to main heat-producing device converter valve, utilize seawater to cool converter valve, take full advantage of the advantage of offshore oil platform, provide cost savings.3, the present invention is owing to being provided with two valve hall, constituting two cover electric energy converting equipments between two attachment section, two Control protection rooms and two water cooling equipments, simultaneously or isolated operation, can effectively improve energy conversion efficiency and reliability.4, the present invention is due to two valve hall, two attachment section, be all symmetrical arranged between two Control protection rooms and two storage batterys; no matter be all independent of each other from electrical connection or apparatus arrangement; effectively prevent influencing each other and disturbing of equipment, improve offshore oil platform power supply reliability.5, the present invention is connected with offshore oil platform electrical system due to Control protection indoor station power supply panel, effectively simplifies electricity consumption electric equipment in station in current conversion station.6, the present invention is owing to being arranged in the electric room of pressure-fired by crucial easily worn part, solves the problem of offshore oil platform harsh environmental conditions, effectively improves the equipment O&M cycle, is conducive to equipment operating and later maintenance.The present invention is flexible for installation, can be widely used in the flexible direct current power transmission system of offshore oil platform.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the end view of Fig. 1
Fig. 3 is Fig. 1 upper part vertical view
Fig. 4 is Fig. 1 end portion vertical view
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1 and Figure 2, the present invention includes an associating steel building 1 be made up of multiple function room, associating steel building 1 is horizontally divided into upper and lower end two parts by structural beams and some steel plates;
As shown in Figure 1, Figure 3, upper part is longitudinally divided into three electric rooms by steel column and some steel plates; Wherein, intermediary electrical room is DC fields 2, is placed with two cover smoothing reactors and respective straight flow device in DC fields 2; Two electric rooms of DC fields 2 both sides are respectively valve hall 3, and two valve hall 3 are symmetrical about DC fields 2, are placed with a set of converter valve and some airconditions in each valve hall 3;
As Fig. 1, as indicated at 4, end portion is longitudinally divided into five electric rooms by steel column and some steel plates; Wherein, intermediary electrical room is between current conversion station water cooling equipment 4, and between current conversion station water cooling equipment, 4 are longitudinally divided into front and back end two parts by a cable shaft 5, and DC fields 2 connects submarine cable by cable shaft 5; Between current conversion station water cooling equipment 4 front and back end two parts in be placed with cooling water circulating pump, small pump, plate heat exchanger and reserved pipe interface respectively, wherein, cooling water circulating pump connects the cooling water pipeline of converter valve in two valve hall 3, and reserved pipe interface connects offshore oil platform seawater pipe network system; Near between current conversion station water cooling equipment, each electric room of 4 both sides is longitudinally divided into front and back end two parts respectively, each fore-end electric room is respectively Control protection room 6, be placed with Control protection system in each Control protection room 6, stand with power supply panel and direct current cabinet, Control protection system comprises linear quadratic control screen and valve control screen, wherein, stand and connect offshore oil platform electrical system with power supply panel power supply; Each rear end part electric room to be respectively between storage battery 7, is placed with storage battery and electric apparatus for explosive gas in 7 between each storage battery; Wherein, between two Control protection rooms 6 and two storage batterys 7 respectively about 4 symmetrical between current conversion station water cooling equipment; Outermost two electric rooms are respectively attachment section 8, are placed with valve reactor, alternating-current electric equipment and oil-gas casing in each attachment section 8; Be positioned at the outside of associating steel building 1 and interval, adjacent arbitrary attachment section 8 is placed with two tietransformers 9, each tietransformer 9 by oil-gas casing respectively with the alternating-current electric equipment connection in each attachment section 8; Between the storage battery of DC fields 2, two valve hall 3, two Control protection room 6, two, 7 are all connected by wall bushing mode with two attachment section 8.
In above-described embodiment, the both sides, front and back of associating steel building 1 are provided with stair activity 10, and the bottom interval of associating steel building 1 is provided with some buttresses 11, and the present invention can be placed on the top layer deck of offshore oil platform.
In above-described embodiment, in DC fields 2, DC equipment comprises direct current arrester, direct-current isolating switch, DC voltage measuring device and DC earthing cutter; Electric apparatus for explosive gas between two storage batterys in 7 comprises explosion-proof type blower fan, anti-explosion lamp and switch and hydrogen gas detector.
In above-described embodiment, the preferred GIS of alternating-current electric equipment (sulfur hexafluoride combined electric appliance) equipment in two attachment section 8.GIS device is commercially available prod, considers the corrosion impacts such as marine salt fog, is arranged in indoor.
In above-described embodiment, the wall 12 between attachment section 8 and two tietransformers 9 is A60 fire compartment wall preferably.
In above-described embodiment, two tietransformers 9 preferably capacity are the oil immersed type insulated type transformer of 45MWA.
In above-described embodiment, all electric rooms all adopt pressure-fired system, enter room air all after filtration, drying can be filled with, to guarantee to meet the explosion-proof of offshore oil platform and requirement for anticorrosion.
According to offshore oil platform electricity consumption scale statistics, general marine current conversion station power system capacity can be set to 2 × 40MW (± 60kV) or 2 × 60MW (± 80kV).The present invention adopts double loop flexible DC power transmission, and the capacity of land and marine current conversion station is 2 × 40MW, and DC voltage level is ± 60kV, and alternating voltage grade is 35kV.
The present invention in use; first by the reserved safety zone of integral hoisting of the present invention to the top layer deck of offshore oil platform; be connected with offshore oil platform seawater pipe network system by reserved pipe interface between each current conversion station water cooling equipment in 4, the station in each Control protection room 6 is connected with offshore oil platform electrical system with power supply panel.In the present invention, between two valve hall 3, two current conversion station water cooling equipments, between 4, two Control protection room 6, two storage batterys, 7, two attachment section 8 and two tietransformers 9 form two cover electric energy converting equipments respectively; the two cover smoothing reactors that the direct current energy that submarine cable is carried is arranged in DC fields 2 and respective straight flow device enter two cover electric energy converting equipments respectively; two cover electric energy converting equipments independent operating separately, introduces its operation principle in detail with wherein a set of example that operates to.
The AC energy of electrical network 220kV is converted to by land current conversion station ± direct current energy of 60kV after, the direct current energy carried by double loop direct current submarine cable enters DC fields 2 through cable shaft 5, after two-way direct current energy enters smoothing reactor in DC fields 2 and corresponding DC equipment respectively, the converter valve in a valve hall 3 is entered through wall bushing, by converter valve, the direct current energy of ± 60kV is converted to the AC energy of 60kV, the valve reactor of AC energy in attachment section 8 and alternating-current electric equipment are delivered to a tietransformer 9, tietransformer 9 is delivered to offshore oil platform power distribution station after the alternating current of 60kV is converted to the alternating current of 35kV.The Control protection system of Control protection room 6 is monitored this cover electric energy converting equipment, control and scheduling co-design; Stand with power supply panel for powering to the normal electricity consumption load in associating steel building 1 and emergence power load, and the normal power source of station power supply panel and emergency power supply all draw from offshore oil platform electrical system.Normal electricity consumption load includes HVAC blower fan, normal illumination, water cooling equipment etc.; Emergence power load comprises DC power supply panel, emergency lighting etc.
The present invention adopts water-water-cooling pattern to lower the temperature to main heat-producing device converter valve, and the interior type of cooling adopts water-cooled, and the outer type of cooling adopts cooled with seawater mode.Be described in detail with the example that is cooled to of wherein a set of converter valve.Inner cooling water is in converter valve after heat temperature raising, the inner cooling water after heating up is driven to enter in plate heat exchanger by the cooling water circulating pump be arranged between current conversion station water cooling equipment in 4, offshore oil platform seawater pipe network system is also entered in plate heat exchanger by the seawater of reserved pipe interface conveying, heat exchange is carried out with the inner cooling water after heating up, thus inner cooling water is cooled, inner cooling water after cooling drives circulation again to send into converter valve through cooling water circulating pump, and that so goes round and begins again lowers the temperature to converter valve.Wherein, the consume of inner cooling water in circulating cooling process, is supplemented automatically by the pressure of small pump according to interior cooling circulating water.
The various embodiments described above are only for illustration of the present invention; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (5)
1. a marine flexible direct-current transmission system converter station, is characterized in that: it comprises an associating steel building be made up of multiple function room, and described associating steel building is horizontally divided into upper and lower end two parts by structural beams and some steel plates;
Upper part is longitudinally divided into three electric rooms by steel column and some steel plates; Wherein, intermediary electrical room is DC fields; Two electric rooms of described DC fields both sides are respectively valve hall, and valve hall described in two is symmetrical about described DC fields;
End portion is longitudinally divided into five electric rooms by steel column and some steel plates; Wherein, intermediary electrical room is between current conversion station water cooling equipment, is longitudinally divided into front and back end two parts between described current conversion station water cooling equipment by a cable shaft, and described DC fields connects submarine cable by described cable shaft; Front and back end two parts between described current conversion station water cooling equipment are placed with cooling water circulating pump and reserved pipe interface respectively, wherein, described cooling water circulating pump connects the cooling water pipeline of converter valve in valve hall described in two, and described reserved pipe interface connects offshore oil platform seawater pipe network system; Near between described current conversion station water cooling equipment, each electric room of both sides is longitudinally divided into front and back end two parts respectively, each fore-end electric room is respectively Control protection room, described in each, Control protection indoor are placed with station power supply panel, and described station power supply panel connects offshore oil platform electrical system; Each rear end part electric room is respectively between storage battery; Wherein, described in two described in Control protection room and two between storage battery respectively about symmetrical between described current conversion station water cooling equipment; Outermost two electric rooms are respectively attachment section, are placed with alternating-current electric equipment and oil-gas casing in attachment section described in each; Be positioned at the outside of described associating steel building and adjacent arbitrary described attachment section is arranged at intervals with two tietransformers, tietransformer described in each by oil-gas casing respectively with described alternating-current electric equipment connection in attachment section described in each; All be connected by wall bushing mode with two attachment section between described DC fields, two valve hall, two Control protection rooms, two storage batterys.
2. a kind of marine flexible direct-current transmission system converter station as claimed in claim 1, it is characterized in that: the rear and front end of described associating steel building is provided with stair activity, the bottom interval of described associating steel building is provided with some buttresses.
3. a kind of marine flexible direct-current transmission system converter station as claimed in claim 1, is characterized in that: described alternating-current electric equipment adopts GIS device.
4. a kind of marine flexible direct-current transmission system converter station as claimed in claim 2, is characterized in that: described alternating-current electric equipment adopts GIS device.
5. the marine flexible direct-current transmission system converter station of one as claimed in claim 1 or 2 or 3 or 4, is characterized in that: the wall between described attachment section and two tietransformers adopts A60 fire compartment wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541421.5A CN104320006B (en) | 2014-10-14 | 2014-10-14 | A kind of marine flexible direct-current transmission system converter station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410541421.5A CN104320006B (en) | 2014-10-14 | 2014-10-14 | A kind of marine flexible direct-current transmission system converter station |
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| CN104320006A true CN104320006A (en) | 2015-01-28 |
| CN104320006B CN104320006B (en) | 2016-09-21 |
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| CN201410541421.5A Active CN104320006B (en) | 2014-10-14 | 2014-10-14 | A kind of marine flexible direct-current transmission system converter station |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650339A (en) * | 2016-03-21 | 2016-06-08 | 国家电网公司 | Valve external cooling system achieving cooling with seawater |
| CN106786559A (en) * | 2017-02-14 | 2017-05-31 | 全球能源互联网研究院 | A kind of appraisal procedure of marine current conversion station reliability |
| CN107332146A (en) * | 2017-08-28 | 2017-11-07 | 南通振华重型装备制造有限公司 | A kind of new offshore wind farm installation ship GIS module installation methods |
| CN108590240A (en) * | 2018-06-20 | 2018-09-28 | 浙江联能电气有限公司 | One kind being convenient for seaborne electrical room |
| CN108706298A (en) * | 2018-06-20 | 2018-10-26 | 浙江联能电气有限公司 | A kind of packaged type air conditioner structure in electrical room |
| WO2018218040A1 (en) * | 2017-05-24 | 2018-11-29 | J. Ray Mcdermott, S.A. | Hvdc modular platform design |
| CN110137838A (en) * | 2019-05-24 | 2019-08-16 | 中国电建集团华东勘测设计研究院有限公司 | A kind of modular sea change of current station structure |
| CN114242401A (en) * | 2021-10-26 | 2022-03-25 | 保定天威保变电气股份有限公司 | Arrangement system of inner-cooling circulating water cooling type flexible-direct transformer |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650339A (en) * | 2016-03-21 | 2016-06-08 | 国家电网公司 | Valve external cooling system achieving cooling with seawater |
| CN106786559A (en) * | 2017-02-14 | 2017-05-31 | 全球能源互联网研究院 | A kind of appraisal procedure of marine current conversion station reliability |
| WO2018218040A1 (en) * | 2017-05-24 | 2018-11-29 | J. Ray Mcdermott, S.A. | Hvdc modular platform design |
| US11011894B2 (en) | 2017-05-24 | 2021-05-18 | J. Ray Mcdermott, S.A. | HVDC modular platform design |
| US11689023B2 (en) | 2017-05-24 | 2023-06-27 | J. Ray Mcdermott, S.A. | HVDC modular platform design |
| CN107332146A (en) * | 2017-08-28 | 2017-11-07 | 南通振华重型装备制造有限公司 | A kind of new offshore wind farm installation ship GIS module installation methods |
| CN108590240A (en) * | 2018-06-20 | 2018-09-28 | 浙江联能电气有限公司 | One kind being convenient for seaborne electrical room |
| CN108706298A (en) * | 2018-06-20 | 2018-10-26 | 浙江联能电气有限公司 | A kind of packaged type air conditioner structure in electrical room |
| CN108706298B (en) * | 2018-06-20 | 2024-04-26 | 浙江联能电气有限公司 | Movable air conditioner structure of electric house |
| CN108590240B (en) * | 2018-06-20 | 2024-04-30 | 浙江联能电气有限公司 | Electric house convenient to marine transportation |
| CN110137838A (en) * | 2019-05-24 | 2019-08-16 | 中国电建集团华东勘测设计研究院有限公司 | A kind of modular sea change of current station structure |
| CN114242401A (en) * | 2021-10-26 | 2022-03-25 | 保定天威保变电气股份有限公司 | Arrangement system of inner-cooling circulating water cooling type flexible-direct transformer |
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| CN104320006B (en) | 2016-09-21 |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |