CN213990515U - Offshore flexible direct current converter station valve hall arrangement structure - Google Patents
Offshore flexible direct current converter station valve hall arrangement structure Download PDFInfo
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- CN213990515U CN213990515U CN202023140141.3U CN202023140141U CN213990515U CN 213990515 U CN213990515 U CN 213990515U CN 202023140141 U CN202023140141 U CN 202023140141U CN 213990515 U CN213990515 U CN 213990515U
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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
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
The utility model relates to a flexible direct current transmission of electricity engineering technical field of offshore wind power discloses a flexible direct current converter station valve room arrangement structure on sea, including the valve room, the quantity in valve room is two, two valve room symmetric arrangements, is equipped with anodal A looks bridge arm, anodal B looks bridge arm and anodal C looks bridge arm in the valve room, is equipped with negative pole A looks bridge arm, negative pole B looks bridge arm and negative pole C looks bridge arm in another valve room, and six bridge arms in two valve rooms are "ABCCBA" symmetric arrangement. The utility model discloses marine flexible direct current converter station valve room arrangement structure arranges that the wiring is simple, and business turn over line wiring is clear, and the direct current field need not to carry out direct current polar line through the female crisscross commutation of height, low pipe and converges, and the long wide size in marine flexible direct current converter station valve room that reduces that can be very big reduces engineering cost.
Description
Technical Field
The utility model relates to a flexible direct current transmission of electricity engineering technical field of marine wind power, concretely relates to marine flexible direct current convertor station valve room arrangement structure.
Background
The converter valve is the core electrical equipment of flexible direct current transmission engineering, and in engineering construction, a special valve hall is usually arranged for the converter valve and the electrical equipment on the alternating current side and the direct current side of the converter valve. Particularly for offshore flexible direct current transmission projects, the valve hall is an area with the largest space size and the heaviest weight of electrical equipment in an offshore flexible direct current converter station platform, the overall size and the platform arrangement scheme of the offshore flexible direct current converter station are determined to the greatest extent, and important influence is generated on the investment and construction cost of the offshore flexible direct current converter station.
Due to the limitation of the size and weight of the platform of the offshore flexible direct current converter station, the valve hall electrical equipment arrangement structure of the offshore flexible direct current converter station needs to be designed in combination with the totally-closed, compact, light and stacked arrangement requirements of the offshore flexible direct current converter station. In the prior art, a complete converter unit valve group is usually arranged in a single valve hall of a land flexible direct current converter station, alternating current and direct current side electrical equipment of converter valves are arranged in a flatwise manner, the size of the valve hall is large, the arrangement structure of the valve hall of the land flexible direct current converter station cannot meet the requirement of compact structure of the marine flexible direct current converter station, and the arrangement structure of the valve hall of the existing land flexible direct current converter station is an arrangement mode that the converter valves are in the same phase and upper and lower bridge arms are adjacent, so that direct current pole lines of a direct current field need to be converged through high and low tubular bus staggered phase conversion, the arrangement and wiring are complex, and the size of the direct current field is increased.
Disclosure of Invention
The utility model aims at the not enough to above-mentioned technique, provide a marine flexible direct current converter station valve room arrangement structure, it is simple to arrange the wiring, and business turn over line wiring is clear, and the direct current field need not to carry out direct current polar line through the female crisscross commutation of high, low pipe and converges, and the long wide size in marine flexible direct current converter station valve room that reduces that can be very big reduces engineering cost.
In order to realize the above-mentioned purpose, the utility model relates to a marine flexible direct current converter station valve room arrangement structure, including the valve room, the quantity in valve room is two, two valve room symmetrical arrangement, one be equipped with anodal A looks bridge arm, anodal B looks bridge arm and anodal C looks bridge arm, another in the valve room be equipped with negative pole A looks bridge arm, negative pole B looks bridge arm and negative pole C looks bridge arm, and two six bridge arms in the valve room are "ABCCBA" symmetrical arrangement.
Preferably, each bridge arm includes a converter valve group composed of a plurality of converter valve towers connected in series, one end of the converter valve group is connected with an ac side current measuring device, the ac side current measuring device is connected with an ac side incoming line bushing, the other end of the converter valve group is connected with a dc side current measuring device, and the dc side current measuring device is connected with a dc side outgoing line bushing.
Preferably, both ends of a pipe bus of the alternating current side current measuring device are supported and fixed through alternating current side post insulators, an alternating current side arrester is arranged under an alternating current side wiring sleeve, the alternating current side wiring sleeve is connected with an alternating current side grounding switch, the alternating current side arrester is connected with the alternating current side wiring sleeve and the alternating current side grounding switch through metal wires, and the converter valve tower, the alternating current side current measuring device, the alternating current side post insulators, the alternating current side grounding switch and the alternating current side arrester are installed on the ground of the valve hall.
Preferably, both ends of a pipe bus of the direct current side current measuring device are supported and fixed by direct current side post insulators, a direct current side arrester is arranged right below the direct current side outgoing line sleeve, the direct current side outgoing line sleeve is connected with a direct current side grounding switch, the direct current side arrester is connected with the direct current side outgoing line sleeve and the direct current side grounding switch through metal wires, and the converter valve tower, the direct current side current measuring device, the direct current side post insulators, the direct current side grounding switch and the direct current side arrester are installed on the ground of the valve hall.
Preferably, the ac side feeder bushing is vertically arranged and mounted on the top of the valve hall.
Preferably, the direct-current side outlet casing is vertically arranged and is installed at the top of the valve hall.
Compared with the prior art, the utility model, have following advantage:
1. the arrangement is compact, the wiring of the inlet and outlet lines is clear, the length and width of the valve hall of the offshore flexible direct current converter station can be greatly reduced, and the construction cost is reduced;
2. the direct current field does not need to carry out direct current polar line confluence through high and low tube bus staggered commutation and does not need commutation, and the size is smaller.
Drawings
Fig. 1 is a schematic plan view of the valve hall arrangement structure of the offshore flexible direct current converter station according to the present invention;
fig. 2 is a schematic structural diagram of one bridge arm in fig. 1.
The components in the figures are numbered as follows:
the three-phase converter comprises a valve hall 1, a positive A-phase arm 2, a positive B-phase arm 3, a positive C-phase arm 4, a negative A-phase arm 5, a negative B-phase arm 6, a negative C-phase arm 7, a converter valve tower 8, an alternating current side current measuring device 9, an alternating current side wiring sleeve 10, an alternating current side pillar insulator 11, an alternating current side arrester 12, an alternating current side grounding switch 13, a direct current side current measuring device 14, a direct current side outgoing line sleeve 15, a direct current side pillar insulator 16, a direct current side arrester 17 and a direct current side grounding switch 18.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in fig. 1 and 2, the utility model discloses marine flexible direct current converter station valve room arrangement structure, including valve room 1, the quantity of valve room 1 is two, and two valve room 1 symmetrical arrangement are equipped with anodal A looks bridge arm 2, anodal B looks bridge arm 3 and anodal C looks bridge arm 4 in the valve room 1, are equipped with negative pole A looks bridge arm 5, negative pole B looks bridge arm 6 and negative pole C looks bridge arm 7 in another valve room 1, and six bridge arms in two valve rooms 1 are "ABCCBA" symmetrical arrangement.
In this embodiment, each bridge arm includes a converter valve group composed of a plurality of converter valve towers 8 connected in series, one end of the converter valve group is connected with an ac side current measuring device 9, the ac side current measuring device 9 is connected with an ac side incoming line bushing 10, the other end of the converter valve group is connected with a dc side current measuring device 14, and the dc side current measuring device 14 is connected with a dc side outgoing line bushing 15.
In this embodiment, both ends of a tubular bus of the ac side current measuring device 9 are supported and fixed by an ac side post insulator 11, an ac side arrester 12 is provided under an ac side wiring bushing 10, the ac side wiring bushing 10 is connected with an ac side grounding switch 13, the ac side arrester 12 is connected with the ac side wiring bushing 10 and the ac side grounding switch 13 by metal wires, and the converter valve tower 8, the ac side current measuring device 9, the ac side post insulator 11, the ac side grounding switch 13, and the ac side arrester 12 are all installed on the ground of the valve hall 1.
In this embodiment, both ends of a tubular bus of the dc side current measuring device 14 are supported and fixed by a dc side post insulator 16, a dc side arrester 17 is arranged right below the dc side outgoing line sleeve 15, the dc side outgoing line sleeve 15 is connected with a dc side grounding switch 18, the dc side arrester 17 is connected with the dc side outgoing line sleeve 15 and the dc side grounding switch 18 by metal wires, and the converter valve tower 8, the dc side current measuring device 14, the dc side post insulator 16, the dc side grounding switch 18, and the dc side arrester 17 are installed on the ground of the valve hall.
Wherein, AC side inlet bushing 10 and DC side outlet bushing 15 are both vertically arranged and installed on the top of valve hall 1.
The utility model discloses marine flexible direct current converter station valve room arrangement structure arranges compactly, and business turn over line wiring is clear, can very big reduction marine flexible direct current converter station valve room length and width size, reduces engineering cost; the direct current field does not need to carry out direct current polar line confluence through high and low tube bus staggered commutation and does not need commutation, and the size is smaller.
Claims (6)
1. The utility model provides an offshore flexible direct current converter station valve room arrangement structure, includes valve room (1), its characterized in that: the number of the valve halls (1) is two, the two valve halls (1) are symmetrically arranged, one valve hall (1) is internally provided with a positive pole A-phase bridge arm (2), a positive pole B-phase bridge arm (3) and a positive pole C-phase bridge arm (4), the other valve hall (1) is internally provided with a negative pole A-phase bridge arm (5), a negative pole B-phase bridge arm (6) and a negative pole C-phase bridge arm (7), and six bridge arms in the two valve halls (1) are symmetrically arranged in an 'ABCCBA'.
2. The offshore flexible direct current converter station valve hall arrangement according to claim 1, characterized in that: each bridge arm comprises a converter valve group consisting of a plurality of converter valve towers (8) connected in series, one end of each converter valve group is connected with an alternating current side current measuring device (9), the alternating current side current measuring device (9) is connected with an alternating current side wiring sleeve (10), the other end of each converter valve group is connected with a direct current side current measuring device (14), and the direct current side current measuring device (14) is connected with a direct current side wiring sleeve (15).
3. The offshore flexible direct current converter station valve hall arrangement according to claim 2, characterized in that: the utility model discloses a valve hall's structure, including the main both ends of pipe of alternating current side current measuring device (9), alternating current side wiring sleeve pipe (10) are equipped with alternating current side arrester (12) under, alternating current side wiring sleeve pipe (10) even have alternating current side earthing switch (13), alternating current side arrester (12) with alternating current side wiring sleeve pipe (10) and alternating current side earthing switch (13) all connect through the metallic conductor, change current valve tower (8), alternating current side current measuring device (9), alternating current side pillar insulator (11), alternating current side earthing switch (13), alternating current side arrester (12) are all installed the subaerial of valve hall (1).
4. The offshore flexible direct current converter station valve hall arrangement according to claim 2, characterized in that: the two ends of a pipe bus of the direct current side current measuring device (14) are supported and fixed through direct current side post insulators (16), a direct current side lightning arrester (17) is arranged under the direct current side outgoing line sleeve (15), the direct current side outgoing line sleeve (15) is connected with a direct current side grounding switch (18), the direct current side lightning arrester (17) is connected with the direct current side outgoing line sleeve (15) and the direct current side grounding switch (18) through metal conducting wires, and the converter valve tower (8), the direct current side current measuring device (14), the direct current side post insulators (16), the direct current side grounding switch (18) and the direct current side lightning arrester (17) are installed on the ground of the valve hall.
5. The offshore flexible direct current converter station valve hall arrangement according to claim 2, characterized in that: the alternating current side wiring sleeve (10) is vertically arranged and is installed at the top of the valve hall (1).
6. The offshore flexible direct current converter station valve hall arrangement according to claim 2, characterized in that: the direct-current side outlet sleeve (15) is vertically arranged and is installed at the top of the valve hall (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023140141.3U CN213990515U (en) | 2020-12-22 | 2020-12-22 | Offshore flexible direct current converter station valve hall arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023140141.3U CN213990515U (en) | 2020-12-22 | 2020-12-22 | Offshore flexible direct current converter station valve hall arrangement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213990515U true CN213990515U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023140141.3U Active CN213990515U (en) | 2020-12-22 | 2020-12-22 | Offshore flexible direct current converter station valve hall arrangement structure |
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| Country | Link |
|---|---|
| CN (1) | CN213990515U (en) |
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2020
- 2020-12-22 CN CN202023140141.3U patent/CN213990515U/en active Active
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