CN114915188A - Perpendicular compact converter valve tower - Google Patents
Perpendicular compact converter valve tower Download PDFInfo
- Publication number
- CN114915188A CN114915188A CN202210598114.5A CN202210598114A CN114915188A CN 114915188 A CN114915188 A CN 114915188A CN 202210598114 A CN202210598114 A CN 202210598114A CN 114915188 A CN114915188 A CN 114915188A
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- China
- Prior art keywords
- phase
- bridge arm
- lower bridge
- converter valve
- upper bridge
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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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- 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]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The invention relates to the technical field of flexible direct current power transmission, in particular to a vertical compact converter valve tower which comprises an A-phase converter valve, a B-phase converter valve and a C-phase converter valve, wherein the A-phase converter valve comprises an A-phase upper bridge arm and an A-phase lower bridge arm, the B-phase converter valve comprises a B-phase upper bridge arm and a B-phase lower bridge arm, the C-phase converter valve comprises a C-phase upper bridge arm and a C-phase lower bridge arm, the A-phase upper bridge arm, the B-phase upper bridge arm and the C-phase upper bridge arm are vertically arranged on the ground, adjacent upper bridge arms are fixedly connected to form an upper bridge arm valve tower, the A-phase lower bridge arm, the B-phase lower bridge arm and the C-phase lower bridge arm are vertically arranged on the ground, and adjacent lower bridge arms are fixedly connected to form a lower bridge arm valve tower. The converter valve tower reduces the occupied area and improves the utilization degree of the vertical height space.
Description
Technical Field
The invention relates to the technical field of flexible direct current transmission, in particular to a vertical compact converter valve tower.
Background
The demand of high-power electronic products is developing towards higher voltage and larger power capacity, the two-level or three-level technology cannot meet the increasing demand of voltage and capacity, more and more high-power electronic products adopt modular multilevel topology, for example, the flexible direct-current transmission voltage source converter in the high-voltage high-power field adopts modular multilevel topology.
The Modular Multilevel Converter (Modular Multilevel Converter, MMC) realizes high-voltage large-capacity output by cascade connection of a plurality of Converter valve sub-module units in the same direction, the flexible direct-current Converter valve tower is an important component in a flexible direct-current power transmission system and plays a role in connecting the flexible direct-current power transmission system and an alternating-current system, the existing flexible direct-current Converter valve tower generally adopts a centralized and tiled arrangement mode, and the whole Converter valve tower occupies a large area.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to: the vertical compact converter valve tower has the advantages that the occupied area is reduced, and the utilization degree of a vertical height space is improved.
In order to achieve the purpose, the invention adopts the following technical scheme: a vertical compact converter valve tower comprises an A-phase converter valve, a B-phase converter valve and a C-phase converter valve, wherein the A-phase converter valve comprises an A-phase upper bridge arm and an A-phase lower bridge arm, the B-phase converter valve comprises a B-phase upper bridge arm and a B-phase lower bridge arm, the C-phase converter valve comprises a C-phase upper bridge arm and a C-phase lower bridge arm, the A-phase upper bridge arm, the B-phase upper bridge arm and the C-phase upper bridge arm are vertically installed on the ground, adjacent upper bridge arms are fixedly connected to form an upper bridge arm valve tower, the A-phase lower bridge arm, the B-phase lower bridge arm and the C-phase lower bridge arm are vertically installed on the ground, and adjacent lower bridge arms are fixedly connected to form a lower bridge arm valve tower.
Furthermore, adjacent upper bridge arms are connected through an insulating connecting piece, and adjacent lower bridge arms are connected through an insulating connecting piece.
Furthermore, the bottoms of the phase A upper bridge arm, the phase A lower bridge arm, the phase B upper bridge arm, the phase B lower bridge arm, the phase C upper bridge arm and the phase C lower bridge arm are all installed on the ground through supporting insulators.
Further, direct current output positive electrodes are uniformly arranged at the tops of the phase A upper bridge arm, the phase B upper bridge arm and the phase C upper bridge arm, and direct current output negative electrodes are uniformly arranged at the tops of the phase A lower bridge arm, the phase B lower bridge arm and the phase C lower bridge arm.
Further, the direct current output positive pole is connected with a direct current output positive bus, and the direct current output negative pole is connected with a direct current output negative bus.
Further, the alternating current sides of the converter valves are respectively arranged at the bottom of the upper bridge arm valve tower and the bottom of the lower bridge arm valve tower.
In summary, the present invention has the following advantages: (1) according to the converter valve tower, the upper bridge arm or the lower bridge arm of the converter valve is vertically arranged into one valve tower according to the A phase, the B phase and the C phase, and the whole flexible direct-current transmission converter valve can be arranged only by adopting the two valve towers of the upper bridge arm valve tower and the lower bridge arm valve tower, so that the floor area is greatly reduced, and the utilization degree of a vertical space is improved in a vertical arrangement mode.
(2) The direct current side is respectively arranged at the tops of the upper bridge arm valve tower and the lower bridge arm valve tower, the alternating current side is respectively arranged at the bottoms of the upper bridge arm valve tower and the lower bridge arm valve tower, the insulation distance between the direct current output positive pole and the direct current output negative pole is met through the arrangement distance of the upper bridge arm valve tower and the lower bridge arm valve tower, additional reservation on the side face of the bridge arm valve tower is not needed, the utilization degree of the space above the vertical height is further improved, and the area occupied by tiling is reduced.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Wherein: the bridge type three-phase bridge is characterized in that 1 is an A-phase upper bridge arm, 2 is a B-phase upper bridge arm, 3 is a C-phase upper bridge arm, 4 is an A-phase lower bridge arm, 5 is a B-phase lower bridge arm, 6 is a C-phase lower bridge arm, 7 is an insulating connecting piece, 8 is a supporting insulator, 9 is a direct current output positive bus, and 10 is a direct current output negative bus.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and detailed description.
A vertical compact converter valve tower comprises an A-phase converter valve, a B-phase converter valve and a C-phase converter valve, wherein the A-phase converter valve comprises an A-phase upper bridge arm 1 and an A-phase lower bridge arm 4, the B-phase converter valve comprises a B-phase upper bridge arm 2 and a B-phase lower bridge arm 5, the C-phase converter valve comprises a C-phase upper bridge arm 3 and a C-phase lower bridge arm 6, the A-phase upper bridge arm 1, the B-phase upper bridge arm 2 and the C-phase upper bridge arm 3 are vertically installed on the ground, adjacent upper bridge arms are fixedly connected to form an upper bridge valve tower, the A-phase lower bridge arm 4, the B-phase lower bridge arm 5 and the C-phase lower bridge arm 6 are vertically installed on the ground, and adjacent lower bridge arms are fixedly connected to form a lower bridge valve tower.
In the embodiment, the phase A upper bridge arm 1, the phase B upper bridge arm 2 and the phase C upper bridge arm 3 are arranged in a word at intervals, the phase A lower bridge arm 4, the phase B lower bridge arm 5 and the phase C lower bridge arm 6 are also arranged in a word at intervals, the adjacent upper bridge arm and the adjacent lower bridge arm are connected through the insulating connecting piece 7, the whole flexible direct-current power transmission converter valve tower can be arranged only by adopting the upper bridge arm valve tower and the lower bridge arm valve tower, the floor area is greatly reduced, and the utilization degree of a vertical space is improved in a vertical arrangement mode. .
The bottoms of the phase A upper bridge arm 1, the phase A lower bridge arm 4, the phase B upper bridge arm 2, the phase B lower bridge arm 5, the phase C upper bridge arm 3 and the phase C lower bridge arm 6 are all installed on the ground through supporting insulators 8.
In the embodiment, the top of the upper bridge arm valve tower is provided with a direct current output positive pole, namely the direct current output positive pole is respectively arranged on the tops of the phase A upper bridge arm 1, the phase B upper bridge arm 2 and the phase C upper bridge arm 3, the top of the lower bridge arm valve tower is provided with a direct current output negative pole, namely the direct current output negative pole is respectively arranged on the tops of the phase A lower bridge arm 4, the phase B lower bridge arm 5 and the phase C lower bridge arm 6, on the basis, a direct current output positive bus 9 is laid on the tops of the phase A upper bridge arm 1, the phase B upper bridge arm 2 and the phase C upper bridge arm 3 and is connected with the direct current output positive pole, a direct current output negative bus 10 is laid on the tops of the phase A lower bridge arm 4, the phase B lower bridge arm 5 and the phase C lower bridge arm 6 and is connected with the direct current output negative pole, so that the insulation distance between the direct current output positive pole and the direct current output negative pole is satisfied by the arrangement distance of the upper and lower bridge arm valve tower without additionally reserving the side faces of the upper and lower bridge arm valve tower, further improving the utilization degree of the space above the vertical height and reducing the area occupied by tiling.
Alternating current sides of the converter valve are respectively arranged at the bottoms of the phase A upper bridge arm 1, the phase A lower bridge arm 4, the phase B upper bridge arm 2, the phase B lower bridge arm 5, the phase C upper bridge arm 3 and the phase C lower bridge arm 6.
In conclusion, the converter valve tower vertically arranges the upper bridge arm or the lower bridge arm of the converter valve into one valve tower according to the A phase, the B phase and the C phase, and the arrangement of the whole flexible direct-current transmission converter valve can be completed only by adopting two valve towers of the upper bridge arm valve tower and the lower bridge arm valve tower, so that the floor area is greatly reduced, and the utilization degree of a vertical space is improved in a vertical arrangement mode; the direct current side is respectively arranged at the tops of the upper bridge arm valve tower and the lower bridge arm valve tower, the alternating current side is respectively arranged at the bottoms of the upper bridge arm valve tower and the lower bridge arm valve tower, the insulation distance between the direct current output positive pole and the direct current output negative pole is met through the arrangement distance of the upper bridge arm valve tower and the lower bridge arm valve tower, additional reservation on the side face of the bridge arm valve tower is not needed, the utilization degree of the space above the vertical height is further improved, and the area occupied by tiling is reduced.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (6)
1. A vertical compact converter valve tower is characterized by comprising an A-phase converter valve, a B-phase converter valve and a C-phase converter valve, wherein the A-phase converter valve comprises an A-phase upper bridge arm and an A-phase lower bridge arm, the B-phase converter valve comprises a B-phase upper bridge arm and a B-phase lower bridge arm, the C-phase converter valve comprises a C-phase upper bridge arm and a C-phase lower bridge arm, the A-phase upper bridge arm, the B-phase upper bridge arm and the C-phase upper bridge arm are vertically installed on the ground, adjacent upper bridge arms are fixedly connected to form the upper bridge valve tower, the A-phase lower bridge arm, the B-phase lower bridge arm and the C-phase lower bridge arm are vertically installed on the ground, and adjacent lower bridge arms are fixedly connected to form the lower bridge valve tower.
2. The vertical compact converter valve tower of claim 1, wherein adjacent upper bridge arms are connected by insulating connectors and adjacent lower bridge arms are connected by insulating connectors.
3. The vertical compact converter valve tower of claim 1, wherein bottoms of the phase A upper bridge arm, the phase A lower bridge arm, the phase B upper bridge arm, the phase B lower bridge arm, the phase C upper bridge arm and the phase C lower bridge arm are all mounted on the ground through supporting insulators.
4. The vertical compact converter valve tower of claim 1, wherein the tops of the phase A upper bridge arm, the phase B upper bridge arm and the phase C upper bridge arm are respectively provided with a direct current output positive electrode, and the tops of the phase A lower bridge arm, the phase B lower bridge arm and the phase C lower bridge arm are respectively provided with a direct current output negative electrode.
5. The vertical compact converter valve tower of claim 4, wherein a positive dc output bus is connected to the positive dc output pole, and a negative dc output bus is connected to the negative dc output pole.
6. The vertical compact converter valve tower of claim 1, wherein the ac sides of the converter valves are arranged at the bottom of the upper bridge arm valve tower and the bottom of the lower bridge arm valve tower, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210598114.5A CN114915188A (en) | 2022-05-30 | 2022-05-30 | Perpendicular compact converter valve tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210598114.5A CN114915188A (en) | 2022-05-30 | 2022-05-30 | Perpendicular compact converter valve tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114915188A true CN114915188A (en) | 2022-08-16 |
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ID=82769178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210598114.5A Pending CN114915188A (en) | 2022-05-30 | 2022-05-30 | Perpendicular compact converter valve tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114915188A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015007186A1 (en) * | 2013-07-15 | 2015-01-22 | 国家电网公司 | Valve base control device and method for modular multi-level convertor |
| CN106033935A (en) * | 2015-03-19 | 2016-10-19 | 南京南瑞继保电气有限公司 | Flexible DC power transmission converter valve tower |
| CN213342030U (en) * | 2020-10-27 | 2021-06-01 | 中国电力工程顾问集团中南电力设计院有限公司 | Wiring arrangement structure of flexible straight converter valves adjacent to homopolar valve tower |
| CN113054856A (en) * | 2019-12-27 | 2021-06-29 | 新疆金风科技股份有限公司 | Converter valve tower, converter system and wind generating set |
-
2022
- 2022-05-30 CN CN202210598114.5A patent/CN114915188A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015007186A1 (en) * | 2013-07-15 | 2015-01-22 | 国家电网公司 | Valve base control device and method for modular multi-level convertor |
| CN106033935A (en) * | 2015-03-19 | 2016-10-19 | 南京南瑞继保电气有限公司 | Flexible DC power transmission converter valve tower |
| CN113054856A (en) * | 2019-12-27 | 2021-06-29 | 新疆金风科技股份有限公司 | Converter valve tower, converter system and wind generating set |
| CN213342030U (en) * | 2020-10-27 | 2021-06-01 | 中国电力工程顾问集团中南电力设计院有限公司 | Wiring arrangement structure of flexible straight converter valves adjacent to homopolar valve tower |
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