CN213342030U - Wiring arrangement structure of flexible straight converter valves adjacent to homopolar valve tower - Google Patents
Wiring arrangement structure of flexible straight converter valves adjacent to homopolar valve tower Download PDFInfo
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- CN213342030U CN213342030U CN202022444989.9U CN202022444989U CN213342030U CN 213342030 U CN213342030 U CN 213342030U CN 202022444989 U CN202022444989 U CN 202022444989U CN 213342030 U CN213342030 U CN 213342030U
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Abstract
The utility model discloses an adjacent gentle straight converter valve wiring arrangement structure of homopolar valve tower relates to flexible direct current transmission converter station engineering technical field. The system comprises an upper bridge arm valve tower, a lower bridge arm valve tower, an alternating current side switching connection and a valve hall; the upper bridge arm valve tower, the lower bridge arm valve tower and the alternating current side switching phase are connected and positioned in the valve hall; the upper bridge arm valve tower is connected with the lower bridge arm valve tower. The utility model discloses make full use of valve room height dimension has guaranteed the required operating space of valve tower tool car, has saved the valve room and is following about 10m of the required length of valve tower bridge arm direction, if considering according to the clear height of 22m in the valve room, about 50 ten thousand yuan of civil engineering investment can be saved in a valve room.
Description
Technical Field
The utility model relates to a flexible direct current transmission current conversion station engineering technical field, it is the gentle straight converter valve wiring arrangement structure that homopolar valve tower is adjacent that says so more specifically.
Background
Compared with the traditional direct current transmission, the flexible direct current transmission (flexible direct current transmission for short) has the advantages of no need of reactive compensation, no risk of commutation failure, capability of supplying power to a passive system, independent control of active power and reactive power, low harmonic level, easiness in forming a multi-terminal direct current system, small occupied area and the like. The core equipment for realizing AC/DC power connection in the flexible DC power transmission technology is a flexible DC converter valve which is arranged in a valve hall so as to meet the strict environmental requirements of the converter valve during working.
According to the topological wiring requirement of a modular multilevel flexible direct current transmission technology generally adopted at home and abroad at present, each flexible direct current converter valve group consists of an upper bridge arm and a lower bridge arm, each bridge arm comprises three single-phase bridge arms, and each single-phase bridge arm generally comprises more than two valve towers.
The arrangement and wiring of the bridge arms of the flexible direct current converter valve determine the arrangement design of the valve hall, and the converter valves in the flexible direct current valve hall can have two arrangement schemes according to different arrangement phase sequences of converter valve towers:
1) the same-phase upper and lower bridge arm converter valve towers are arranged adjacently;
2) the homopolar converter valve towers are arranged adjacently;
when homopolar converter valve towers are arranged adjacently, direct current side outgoing line sections are regular, connection is smooth, bridge arm reactors can be arranged in a triangular mode, and the influence of an alternating magnetic field on the periphery is reduced to the maximum extent. However, in the existing ac-side commutation connection technology, the commutation connection conductor needs to be arranged at a position outside the ac side of the flexible-straight converter valve, which occupies the area in the valve hall and increases the civil engineering cost of the valve hall.
Therefore, it is necessary to develop a flexible straight converter valve wiring arrangement method which saves the floor space of a valve hall and is adjacent to a homopolar valve tower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point of above-mentioned background art, and provide a gentle straight converter valve wiring arrangement structure that homopolar valve tower is adjacent.
In order to realize the purpose, the technical scheme of the utility model is that: flexible straight converter valve wiring arrangement structure that homopolar valve tower is adjacent, its characterized in that: the system comprises an upper bridge arm valve tower, a lower bridge arm valve tower, an alternating current side switch and a valve hall;
the upper bridge arm valve tower, the lower bridge arm valve tower and the alternating current side switching phase are connected and positioned in the valve hall;
the upper bridge arm valve tower is positioned on the left side of the lower bridge arm valve tower and connected with the lower bridge arm valve tower through alternating current side switching.
In the above technical scheme, the upper bridge arm valve tower comprises an upper bridge arm a-phase valve tower, an upper bridge arm B-phase valve tower and an upper bridge arm C-phase valve tower; the upper bridge arm A-phase valve tower, the upper bridge arm B-phase valve tower and the upper bridge arm C-phase valve tower are arranged in parallel at intervals;
the lower bridge arm valve tower comprises a lower bridge arm A-phase valve tower, a lower bridge arm B-phase valve tower and a lower bridge arm C-phase valve tower; the lower bridge arm A-phase valve tower, the lower bridge arm B-phase valve tower and the lower bridge arm C-phase valve tower are arranged in parallel at intervals;
the alternating current side commutation phase connection comprises an A phase commutation phase connection, a B phase commutation phase connection and a C phase commutation phase connection.
In the above technical scheme, the upper bridge arm a-phase valve tower, the upper bridge arm B-phase valve tower, the upper bridge arm C-phase valve tower, the lower bridge arm a-phase valve tower, the lower bridge arm B-phase valve tower and the lower bridge arm C-phase valve tower are all provided with voltage-sharing nuts having equipotential connection, current-carrying and wiring functions.
In the technical scheme, the pressure equalizing pipe bus on the upper bridge arm A-phase valve tower is electrically connected with the pressure equalizing pipe bus on the lower bridge arm A-phase valve tower through A-phase commutation connection; the pressure equalizing pipe bus on the upper bridge arm B-phase valve tower is electrically connected with the pressure equalizing pipe bus on the lower bridge arm B-phase valve tower through B-phase commutation connection; and the pressure equalizing pipe bus on the upper bridge arm C-phase valve tower is electrically connected with the pressure equalizing pipe bus on the lower bridge arm C-phase valve tower through C-phase commutation connection.
In the technical scheme, one part of the phase A commutation phase connection is positioned right above an upper bridge arm phase A valve tower and a lower bridge arm valve tower, and the other part of the phase A commutation phase connection is positioned right above an alternating current side of the lower bridge arm phase A valve tower; the phase B commutation phase connection is positioned on the alternating current side of the upper bridge arm phase A valve tower, the upper bridge arm phase B valve tower, the bridge arm phase B valve tower and the lower bridge arm phase C valve tower; and the C-phase commutation phase is connected and positioned right above the alternating current sides of the upper bridge arm valve tower and the lower bridge arm C-phase valve tower.
The utility model discloses make full use of valve room height dimension has guaranteed the required operating space of valve tower tool car, has saved the valve room and is following about 10m of the required length of valve tower bridge arm direction, if considering according to the clear height of 22m in the valve room, about 50 ten thousand yuan of civil engineering investment can be saved in a valve room.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view taken at a-a in fig. 1.
Fig. 3 is a cross-sectional view at B-B in fig. 1.
Fig. 4 is a cross-sectional view at C-C in fig. 1.
Fig. 5 is a cross-sectional view taken at D-D in fig. 1.
Fig. 6 is a cross-sectional view at E-E in fig. 1.
Fig. 7 is a cross-sectional view at F-F in fig. 1.
Fig. 8 is a cross-sectional view at G-G in fig. 1.
Fig. 9 is a sectional view at H-H in fig. 1.
Fig. 10 is an electrical wiring diagram of the present invention.
The system comprises 1-upper bridge arm valve tower, 11-upper bridge arm A phase valve tower, 12-upper bridge arm B phase valve tower, 13-upper bridge arm C phase valve tower, 2-lower bridge arm valve tower, 21-lower bridge arm A phase valve tower, 22-lower bridge arm B phase valve tower, 23-lower bridge arm C phase valve tower, 3-alternating current side commutation phase connection, 31-A commutation phase connection, 32-B commutation phase connection, 33-C commutation phase connection, 4-pressure equalizing pipe bus, 5-valve hall, 51-valve hall roof truss and 52-valve hall steel column.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be apparent and readily appreciated by the description.
With reference to the accompanying drawings: flexible straight converter valve wiring arrangement structure that homopolar valve tower is adjacent, its characterized in that: the system comprises an upper bridge arm valve tower 1, a lower bridge arm valve tower 2, an alternating current side commutation connection 3 and a valve hall 5;
the upper bridge arm valve tower 1, the lower bridge arm valve tower 2 and the alternating current side commutation connection 3 are positioned in a valve hall 5;
the upper bridge arm valve tower 1 is located on the left side of the lower bridge arm valve tower 2, and the upper bridge arm valve tower 1 is connected with the lower bridge arm valve tower 2 through an alternating current side commutation connection 3.
The upper bridge arm valve tower 1 comprises an upper bridge arm A-phase valve tower 11, an upper bridge arm B-phase valve tower 12 and an upper bridge arm C-phase valve tower 13; the upper bridge arm A-phase valve tower 11, the upper bridge arm B-phase valve tower 12 and the upper bridge arm C-phase valve tower 13 are arranged in parallel at intervals;
the lower bridge arm valve tower 2 comprises a lower bridge arm A-phase valve tower 21, a lower bridge arm B-phase valve tower 22 and a lower bridge arm C-phase valve tower 23; the lower bridge arm A-phase valve tower 21, the lower bridge arm B-phase valve tower 22 and the lower bridge arm C-phase valve tower 23 are arranged in parallel at intervals;
the ac-side commutation phase connection 3 comprises an a-commutation phase connection 31, a B-commutation phase connection 32 and a C-commutation phase connection 33.
And the upper bridge arm A phase valve tower 11, the upper bridge arm B phase valve tower 12, the upper bridge arm C phase valve tower 13, the lower bridge arm A phase valve tower 21, the lower bridge arm B phase valve tower 22 and the lower bridge arm C phase valve tower 23 are all provided with a voltage-sharing bus 4 with equipotential connection, current-carrying and wiring functions.
The pressure equalizing pipe 4 on the upper bridge arm A-phase valve tower 11 is electrically connected with the pressure equalizing pipe 4 on the lower bridge arm A-phase valve tower 21 through an A-phase commutation connection 31; the pressure equalizing pipe 4 on the upper bridge arm B-phase valve tower 12 is electrically connected with the pressure equalizing pipe 4 on the lower bridge arm B-phase valve tower 22 through a B-phase commutation connection 32; and the pressure equalizing pipe 4 on the upper bridge arm C-phase valve tower 13 is electrically connected with the pressure equalizing pipe 4 on the lower bridge arm C-phase valve tower 23 through a C-phase commutation connection 33.
One part of the A-phase commutation connection 31 is positioned right above a walkway between the upper bridge arm A-phase valve tower 11 and the lower bridge arm valve tower 2 and the bridge arm valve towers in a manner of a suspension pipe bus, and the other part of the A-phase commutation connection 31 is positioned right above an alternating current side of the lower bridge arm A-phase valve tower 21; the B-phase commutation connection 32 is positioned on the alternating current side of the upper bridge arm A-phase valve tower 11, the upper bridge arm B-phase valve tower 12, the bridge arm B-phase valve tower 22 and the lower bridge arm C-phase valve tower 23 in a support pipe female mode; the C-phase commutation phase connection 33 is located right above the alternating current side of the upper bridge arm valve tower 1 and the lower bridge arm C-phase valve tower 23 in a suspension pipe bus mode.
The electrical connection comprises a tubular bus, a flexible conductor and a connecting hardware fitting, and the potentials of all electrical connection positions are the same.
The valve hall 5 comprises a valve hall roof truss 51 and a valve hall steel column 52; the suspension devices are each fixed to a valve hall roof truss 51, and the valve hall roof truss 51 is supported by a plurality of valve hall steel columns 52.
In fig. 10, SM indicates a soft-straight power module, each valve tower is formed by connecting n soft-straight power modules in series, and each phase bridge arm is formed by connecting 2n soft-straight power modules in series, taking 2 valve towers for each phase bridge arm as an example. Other parts not described belong to the prior art.
Claims (5)
1. Flexible straight converter valve wiring arrangement structure that homopolar valve tower is adjacent, its characterized in that: comprises an upper bridge arm valve tower (1), a lower bridge arm valve tower (2), an alternating current side switch link (3) and a valve hall (5);
the upper bridge arm valve tower (1), the lower bridge arm valve tower (2) and the alternating current side switching connection (3) are positioned in a valve hall (5);
the upper bridge arm valve tower (1) is located on the left side of the lower bridge arm valve tower (2), and the upper bridge arm valve tower (1) is connected with the lower bridge arm valve tower (2) through an alternating current side switch connector (3).
2. The homopolar valve tower adjacent flexible straight converter valve wiring arrangement of claim 1, wherein: the upper bridge arm valve tower (1) comprises an upper bridge arm A-phase valve tower (11), an upper bridge arm B-phase valve tower (12) and an upper bridge arm C-phase valve tower (13); the upper bridge arm A-phase valve tower (11), the upper bridge arm B-phase valve tower (12) and the upper bridge arm C-phase valve tower (13) are arranged in parallel at intervals;
the lower bridge arm valve tower (2) comprises a lower bridge arm A-phase valve tower (21), a lower bridge arm B-phase valve tower (22) and a lower bridge arm C-phase valve tower (23); the lower bridge arm A-phase valve tower (21), the lower bridge arm B-phase valve tower (22) and the lower bridge arm C-phase valve tower (23) are arranged in parallel at intervals;
the alternating current side commutation phase connection (3) comprises an A phase commutation phase connection (31), a B phase commutation phase connection (32) and a C phase commutation phase connection (33).
3. The homopolar valve tower adjacent flexible straight converter valve wiring arrangement of claim 2, wherein: and the upper bridge arm A-phase valve tower (11), the upper bridge arm B-phase valve tower (12), the upper bridge arm C-phase valve tower (13), the lower bridge arm A-phase valve tower (21), the lower bridge arm B-phase valve tower (22) and the lower bridge arm C-phase valve tower (23) are all provided with pressure equalizing nuts (4) with equipotential connection, current carrying and wiring functions.
4. The homopolar valve tower adjacent flexible straight converter valve wiring arrangement of claim 3, wherein: the pressure equalizing pipe nuts (4) on the upper bridge arm A-phase valve tower (11) are electrically connected with the pressure equalizing pipe nuts (4) on the lower bridge arm A-phase valve tower (21) through A-phase commutation connection (31); the pressure equalizing pipe nuts (4) on the upper bridge arm B-phase valve tower (12) are electrically connected with the pressure equalizing pipe nuts (4) on the lower bridge arm B-phase valve tower (22) through a B-phase commutation connection (32); and the pressure equalizing pipe nuts (4) on the upper bridge arm C-phase valve tower (13) are electrically connected with the pressure equalizing pipe nuts (4) on the lower bridge arm C-phase valve tower (23) through C-phase commutation connection (33).
5. The homopolar valve tower adjacent flexible straight converter valve wiring arrangement of claim 4, wherein: one part of the A-phase commutation connection (31) is positioned right above a walkway between the upper bridge arm A-phase valve tower (11) and the lower bridge arm valve tower (2) and the bridge arm valve towers, and the other part is positioned right above an alternating current side of the lower bridge arm A-phase valve tower (21); the phase B commutation connection (32) is positioned on the alternating current side of the upper bridge arm A phase valve tower (11), the upper bridge arm B phase valve tower (12), the bridge arm B phase valve tower (22) and the lower bridge arm C phase valve tower (23); and the C-phase commutation phase connection (33) is positioned right above the alternating current sides of the upper bridge arm valve tower (1) and the lower bridge arm C-phase valve tower (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022444989.9U CN213342030U (en) | 2020-10-27 | 2020-10-27 | Wiring arrangement structure of flexible straight converter valves adjacent to homopolar valve tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022444989.9U CN213342030U (en) | 2020-10-27 | 2020-10-27 | Wiring arrangement structure of flexible straight converter valves adjacent to homopolar valve tower |
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| CN213342030U true CN213342030U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022444989.9U Active CN213342030U (en) | 2020-10-27 | 2020-10-27 | Wiring arrangement structure of flexible straight converter valves adjacent to homopolar valve tower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114915188A (en) * | 2022-05-30 | 2022-08-16 | 广东电网有限责任公司广州供电局 | Perpendicular compact converter valve tower |
| CN116111629A (en) * | 2023-01-31 | 2023-05-12 | 中国华能集团清洁能源技术研究院有限公司 | Offshore flexible straight bridge arm valve tower and alternating current bus same-hall arrangement structure and method |
-
2020
- 2020-10-27 CN CN202022444989.9U patent/CN213342030U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114915188A (en) * | 2022-05-30 | 2022-08-16 | 广东电网有限责任公司广州供电局 | Perpendicular compact converter valve tower |
| CN116111629A (en) * | 2023-01-31 | 2023-05-12 | 中国华能集团清洁能源技术研究院有限公司 | Offshore flexible straight bridge arm valve tower and alternating current bus same-hall arrangement structure and method |
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