CN107620315B - Mounting structure of direct-current field high-voltage equipment of +/-800 kV converter station - Google Patents
Mounting structure of direct-current field high-voltage equipment of +/-800 kV converter station Download PDFInfo
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- CN107620315B CN107620315B CN201711072668.7A CN201711072668A CN107620315B CN 107620315 B CN107620315 B CN 107620315B CN 201711072668 A CN201711072668 A CN 201711072668A CN 107620315 B CN107620315 B CN 107620315B
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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 invention provides a mounting structure of direct-current field high-voltage equipment of a +/-800 kV convertor station, which comprises an 800kV grounding isolating switch foundation, a high-voltage flat wave reactor foundation and an 800kV coupling capacitor support structure, wherein the 800kV grounding isolating switch foundation comprises an 800kV ungrounded isolating switch foundation, an 800kV single-grounding isolating switch foundation and an 800kV double-grounding isolating switch foundation, the 800kV ungrounded isolating switch foundation, the 800kV single-grounding isolating switch foundation and the 800kV double-grounding isolating switch foundation are distributed in a < '> shape, the high-voltage flat wave reactor foundation is arranged on the opening side of the <' > shape, and the 800kV coupling capacitor support structure and the 800kV double-grounding isolating switch foundation are arranged in parallel. The invention can ensure that each electric loop has excellent anti-seismic performance in high intensity earthquake, so that the column top displacement acceleration amplification coefficient of the equipment support meets the anti-seismic standard requirement of electric facilities so as to meet the normal operation requirement of electric equipment, and the occupied land area is reduced by optimizing the arrangement of a direct current field, so that the safety distance is kept after the electric equipment is installed in place.
Description
Technical Field
The invention relates to the technical field of mounting of direct-current field high-voltage equipment of a +/-800 kV converter station, in particular to a mounting structure of direct-current field high-voltage equipment of a +/-800 kV converter station.
Background
In the field of ultra-high voltage direct current transmission of electric power engineering, the requirements on civil construction structures and equipment supports are very high. The mounting of the direct-current field high-voltage equipment of the +/-800 kV convertor station is carried out by matching a civil engineering structure with an equipment support, and the electrical equipment is mounted on the top of the equipment support. When an earthquake occurs, the equipment support has an amplifying effect on the displacement and acceleration of the electrical equipment arranged at the upper part of the equipment support. Therefore, if the rigidity of the civil engineering structure for installing the electrical equipment and the related equipment support is insufficient, the anti-seismic performance of the civil engineering structure is inevitably reduced, so that the anti-seismic performance of the electrical equipment is poor, the normal operation condition requirements of the electrical equipment cannot be well met, and particularly, the normal operation of the electrical equipment cannot be met when the earthquake intensity of 9 degrees is not met, and the normal power transmission is seriously influenced. In addition, the installation of the direct-current field high-voltage equipment of the +/-800 kV converter station also needs to occupy certain land resources, so that the problem that how to save the land resources occupied by the direct-current field of the +/-800 kV converter station to the maximum extent and ensure the safe operation of all electrical equipment is also a problem to be considered.
Disclosure of Invention
The invention aims to solve the technical problems that: aiming at the problems existing in the prior art, the mounting structure of the direct-current field high-voltage equipment of the +/-800 kV convertor station is provided, so that the safe operation of electrical equipment can be ensured, and the land resources can be saved.
The technical problems to be solved by the invention are realized by adopting the following technical scheme: the utility model provides a + -800kV converter station direct current field high voltage equipment mounting structure, includes 800kV ground connection isolator basis, high-voltage flat wave reactor basis and 800kV coupling capacitor supporting structure, 800kV ground connection isolator basis includes 800kV non-ground connection isolator basis, 800kV single ground connection isolator basis and 800kV double ground connection isolator basis, 800kV non-ground connection isolator basis, 800kV single ground connection isolator basis, 800kV double ground connection isolator basis be "<" shape structural distribution "<" shape structural opening side set up high-voltage flat wave reactor basis, 800kV coupling capacitor supporting structure and 800kV double ground connection isolator basis parallel arrangement each other.
Preferably, the 800kV grounding isolating switch foundation comprises a plurality of 800kV grounding isolating switch bases which are arranged in a straight line shape, and a plurality of 800kV grounding isolating switch mounting base posts are respectively formed on each 800kV grounding isolating switch base.
Preferably, a plurality of anchor bolts are fixedly connected to the 800kV grounding isolating switch installation base column, and the 800kV grounding isolating switch installation base column where the anchor bolt rings on the same 800kV grounding isolating switch installation base column are located is arranged.
Preferably, the rag bolt be L shape structure, wherein the kink pre-buried in 800kV ground connection isolator installation base post is inside, and the kink of a plurality of rag bolt all points to the central axis of its 800kV ground connection isolator installation base post that is located.
Preferably, the main structure of the 800kV coupling capacitor bracket structure comprises 800kV coupling capacitor bracket installation seats and 800kV coupling capacitor brackets, and the 800kV coupling capacitor bracket installation seats are distributed in a ring shape; and a fixed connection structure is formed between the bottom of the 800kV coupling capacitor bracket and the 800kV coupling capacitor bracket mounting seat.
Preferably, a plurality of 800kV coupling capacitor bracket mounting base posts are respectively formed on the same 800kV coupling capacitor bracket mounting base, and a plurality of anchor bolts are fixedly connected on the 800kV coupling capacitor bracket mounting base posts.
Preferably, the rag bolt is L-shaped structure, wherein the kink is pre-buried inside 800kV coupling capacitor support installation foundation, and the kink of a plurality of rag bolt bottom all points to the central axis of its 800kV coupling capacitor support installation foundation that is located.
Preferably, the 800kV coupling capacitor support is a lattice support formed by framework upright posts, framework cross beams and framework diagonal braces, each framework upright post is fixedly connected with two independent framework cross beams, and the framework diagonal braces are arranged between two adjacent framework cross beams.
Preferably, the framework upright post is a single pipe column, the bottom of the framework upright post is fixedly connected with a fixing ring, the fixing ring is provided with a slurry overflow hole, and the slurry overflow hole is communicated with the inner cavity of the framework upright post.
Preferably, the joint part of the framework upright post and the framework cross beam is fixedly connected with a terminal plate, the terminal plate and the framework diagonal bracing are fixedly connected, an adjacent plate is arranged between two adjacent framework diagonal bracing which are mutually intersected, and a fixed connection structure is formed between the adjacent plate and the adjacent framework diagonal bracing.
Compared with the prior art, the invention has the beneficial effects that: the 800kV grounding isolating switch foundation is designed into the "<" structure, and the high-voltage smoothing reactor foundation is arranged at the opening side of the "<" structure, so that the land area occupied by the direct current field of the +/-800 kV converter station can be reduced, land resources can be saved, and the construction cost of the +/-800 kV converter station is reduced; meanwhile, the excellent anti-seismic performance of each electric loop can be ensured during high-intensity earthquakes, so that the column top displacement acceleration amplification coefficient of the equipment support meets the anti-seismic standard requirement of electric facilities, the safety distance of the direct-current field high-voltage equipment of the +/-800 kV converter station can be kept after the direct-current field high-voltage equipment is installed in place, and the normal operation requirement of the electric equipment is met, so that the safe operation of the direct-current field high-voltage equipment of the +/-800 kV converter station is ensured.
Drawings
Fig. 1 is a construction diagram of a mounting structure of a direct-current field high-voltage device of a +/-800 kV converter station.
Fig. 2 is a plan view of the base of the 800kV grounding disconnector in fig. 1.
Fig. 3 is an enlarged schematic view of the 800kV grounding disconnector base of fig. 2.
Fig. 4 is a view in the A-A direction in fig. 3.
Fig. 5 is a view in the direction B-B of fig. 4.
Fig. 6 is a plan view of the 800kV coupling capacitor support structure of fig. 1.
Fig. 7 is a schematic view (front view) of the 800kV coupling capacitor holder of fig. 6.
Fig. 8 is a schematic structural view (single line expanded elevation) of the 800kV coupling capacitor holder of fig. 6.
Fig. 9 is a view in the direction C-C of fig. 7.
Fig. 10 is a top view of the 800kV coupling capacitor bracket mount of fig. 6.
Fig. 11 is a D-D view of fig. 10.
Fig. 12 is an E-E view of fig. 11.
Fig. 13 is a top view of the retaining ring of fig. 11.
Item label name in figure: 1-800kV grounding isolating switch foundation, 2-high voltage flat wave reactor foundation, 3-800kV coupling capacitor support structure, 1a-800kV non-grounding isolating switch foundation, 1b-800kV single grounding isolating switch foundation, 1c-800kV double grounding isolating switch foundation, 11-800kV grounding isolating switch base, 12-800kV grounding isolating switch mounting base post, 13-foundation bolt, 14-anchor bar, 15-keel frame, 31-800kV coupling capacitor support mounting base, 32-800kV coupling capacitor support, 33-grounding piece, 310-800kV coupling capacitor support mounting base post, 311-prefabricated anchor bar, 320-framework upright post, 321-framework beam, 322-framework diagonal brace, 323-800kV coupling capacitor mounting support, 324-reinforcing plate, 325-fixing ring, 326-end plate, 327-connecting plate, 328-connecting bolt, 329-slurry overflow hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The mounting structure of the direct-current field high-voltage equipment of the +/-800 kV convertor station mainly comprises an 800kV grounding isolating switch foundation 1, a high-voltage smoothing reactor foundation 2 and an 800kV coupling capacitor support structure 3, wherein the 800kV grounding isolating switch foundation 1 comprises an 800kV ungrounded isolating switch foundation 1a, an 800kV single-grounding isolating switch foundation 1b and an 800kV double-grounding isolating switch foundation 1c. The high-voltage flat wave reactor is characterized in that the 800kV non-grounded isolating switch foundation 1a, the 800kV single-grounded isolating switch foundation 1b and the 800kV double-grounded isolating switch foundation 1c are distributed in a < 'shaped structure, the high-voltage flat wave reactor foundation 2 is arranged on the opening side of the <' shaped structure, and the high-voltage flat wave reactor foundation 2 is arranged in two and is arranged in a shape like a Chinese character 'Ying'. The 800kV coupling capacitor support structure 3 and the 800kV double-grounding isolating switch base 1c are arranged in parallel. By adopting the layout structural design, the safe operation of the direct-current field high-voltage equipment of the +/-800 kV converter station can be ensured to the greatest extent, and the land resources occupied by the direct-current field of the +/-800 kV converter station can be saved to the greatest extent, so that the construction cost of the direct-current field of the +/-800 kV converter station is saved.
The specific structure of the 800kV grounding isolating switch foundation 1 is shown in fig. 2, 3, 4 and 5, and mainly comprises 3 800kV grounding isolating switch bases 11 which are arranged in a straight line shape, and 3 800kV grounding isolating switch mounting base columns 12 are respectively formed on each 800kV grounding isolating switch base 11. Generally, on the same 800kV grounding isolating switch base 11, the 3 800kV grounding isolating switch mounting base posts 12 are uniformly distributed, and the central included angles formed between two adjacent 800kV grounding isolating switch mounting base posts 12 are 120 degrees, as shown in fig. 3. Further, each 800kV grounding isolating switch mounting base column 12 and the 800kV grounding isolating switch base 11 where the base column is located form an integrated forming structure.
Generally, the 800kV grounding isolating switch base 11 and the 800kV grounding isolating switch mounting base column 12 are square bodies of concrete structures, and a plurality of anchor bolts 13 are fixedly connected to the 800kV grounding isolating switch mounting base column 12, as shown in fig. 4. In order to improve the anti-seismic performance of the 800kV grounding isolation switch foundation 1, in general, a plurality of anchor bolts 13 on the same 800kV grounding isolation switch installation base column 12 can be arranged at equal intervals around the 800kV grounding isolation switch installation base column 12 where the anchor bolts are located, each anchor bolt 13 is preferably designed into an L-shaped structure, and a bending part of each anchor bolt 13 is embedded in the 800kV grounding isolation switch installation base column 12. Further, the bending parts of the foundation bolts 13 point to the central axis of the 800kV grounding isolating switch mounting base column 12 where the bending parts are located, as shown in fig. 4. In order to further improve the overall mechanical strength and the earthquake resistance of the 800kV grounding isolating switch foundation 1, anchor bars 14 and a keel frame 15 can be additionally arranged in each 800kV grounding isolating switch base 11, and the anchor bars 14 are preferably arranged in 2 layers and are arranged in a vertically symmetrical structure as shown in fig. 4. The keel frame 15 is preferably reinforced and welded to form a square cross-sectional lattice structure as shown in figure 5.
The main structure of the 800kV coupling capacitor bracket structure 3 shown in fig. 6, 10 and 11 comprises 800kV coupling capacitor bracket mounting seats 31 and 800kV coupling capacitor brackets 32, wherein 3 800kV coupling capacitor bracket mounting seats 31 are arranged and distributed in a ring shape; preferably, the centers of the 3 800kV coupling capacitor bracket mounts 31 are all located on the same circumference. Further, the 3 800kV coupling capacitor bracket mounts 31 are uniformly distributed, and the central included angles formed between two adjacent 800kV coupling capacitor bracket mounts 31 are 120 degrees, as shown in fig. 6.
4 800kV coupling capacitor bracket mounting base posts 310 are formed on each of the 800kV coupling capacitor bracket mounts 31, respectively. Typically, on the same 800kV coupling capacitor bracket mounting base 31, the 4 800kV coupling capacitor bracket mounting base posts 310 are uniformly distributed, and a plurality of anchor bolts 13 are respectively fixed on each 800kV coupling capacitor bracket mounting base post 310, as shown in fig. 10. Further, each 800kV coupling capacitor bracket mounting base 310 forms an integral molding structure with the 800kV coupling capacitor bracket mounting seat 31 where it is located, respectively.
In general, the 800kV coupling capacitor bracket mounting base 31 and the 800kV coupling capacitor bracket mounting base 310 are square bodies of concrete structures, so that a plurality of anchor bolts 13 can be pre-buried and fixed on the 800kV coupling capacitor bracket mounting base 310, as shown in fig. 10 and 11. In order to improve the anti-seismic performance of the 800kV coupling capacitor bracket structure 3, in general, a plurality of anchor bolts 13 on the same 800kV coupling capacitor bracket mounting base column 310 may be arranged at equal intervals around the 800kV coupling capacitor bracket mounting base column 310 where they are located, and each anchor bolt 13 is preferably designed into an L-shaped structure, where a bent portion is embedded inside the 800kV coupling capacitor bracket mounting base column 310. Further, the threaded ends of the tops of the foundation bolts 13 on the same 800kV coupling capacitor bracket mounting base post 310 are exposed to the ground, and the bent portions at the bottoms of the threaded ends are directed to the central axis of the 800kV coupling capacitor bracket mounting base post 310, as shown in fig. 7 and 11.
In order to further improve the overall mechanical strength and the anti-seismic performance of the 800kV coupling capacitor support structure 3, prefabricated anchor bars 311 and a keel frame 15 can be additionally arranged in each 800kV coupling capacitor support mounting seat 31, and the prefabricated anchor bars 311 are preferably prefabricated into a cage-shaped structure and are arranged at the bottom of the 800kV coupling capacitor support mounting seat 31, as shown in fig. 11. The keel frame 15 is preferably reinforced and welded to form a lattice structure having a square cross-sectional shape, as shown in figure 12.
A fixed connection structure is formed between the bottom of the 800kV coupling capacitor bracket 32 and the 800kV coupling capacitor bracket mounting seat 31. Generally, in order to further improve the overall anti-seismic performance of the 800kV coupling capacitor bracket structure 3, as shown in fig. 7, 8, 9 and 11, the 800kV coupling capacitor bracket 32 is a lattice bracket formed by the framework upright 320, the framework cross beam 321 and the framework diagonal brace 322, each 800kV coupling capacitor bracket mounting base post 310 is fixedly connected with an independent framework upright 320, and each framework upright 320 is fixedly connected with two independent framework cross beams 321; preferably, a frame diagonal brace 322 may be further disposed between two adjacent frame beams 321, and the grounding member 33 is fixedly connected to the frame upright 320. In particular, the method comprises the steps of,
the frame column 320 is preferably a single column, the frame beam 321 and the frame diagonal brace 322 are preferably angle steel members, the top of the frame column 320 is fixedly connected with an 800kV coupling capacitor mounting support 323, and the bottom of the frame column 320 is fixedly connected with a fixing ring 325. The structure of the fixing ring 325 is shown in fig. 13, a through hole through which the threaded end of the anchor bolt 13 passes is formed in the circumferential direction of the fixing ring 325, a slurry overflow hole 329 is formed in the center of the fixing ring 325, the slurry overflow hole 329 is communicated with the inner cavity of the framework upright 320, and pouring gaps between the fixing ring 325 and the 800kV coupling capacitor bracket mounting base column 310 can be effectively prevented from being generated to affect the overall mechanical strength and the anti-seismic performance of the 800kV coupling capacitor bracket structure 3 by arranging the slurry overflow hole 329. A plurality of anchor bolts 13 positioned on the 800kV coupling capacitor bracket mounting base post 310 all penetrate the fixing ring 325 and form a fixed connection structure with the fixing ring 325. Further, a plurality of reinforcement plates 324 having a right trapezoid structure and distributed in a ring shape may be disposed at the joint of the frame upright 320 and the fixing ring 325, and the reinforcement plates 324 are welded and fixed with the frame upright 320 and the fixing ring 325, respectively, as shown in fig. 7 and 11.
In order to facilitate the installation operation of the 800kV coupling capacitor bracket 32 and improve the installation efficiency, a plurality of terminal plates 326 can be welded and fixed on the framework upright 320, wherein the terminal plates 326 positioned at the bottom of the framework upright 320 are welded and fixed with the fixing rings 325, and form fixed connection with the adjacent framework diagonal braces 322 through connecting bolts 328; the terminal plates 326 in the middle of the frame uprights 320 are fixedly connected to adjacent frame rails 321, frame struts 322, respectively, by connecting bolts 328. Similarly, the terminal plate 326 may be fixedly connected to the frame column 320 and the frame beam 321 by welding, and the terminal plate 326 and the frame diagonal strut 322 may be fixedly connected to each other by a connecting bolt 328. Further, an abutment plate 327 may be added between two adjacent frame diagonal braces 322 intersecting each other, and the abutment plate 327 forms a fixed connection with the adjacent frame diagonal braces 322, as shown in fig. 9. By adopting the structural design, the 800kV coupling capacitor bracket 32 is convenient to mount, and the 800kV coupling capacitor bracket 32 can be made into a framework with an integral structure, so that the anti-seismic performance of the 800kV coupling capacitor bracket 32 is improved.
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (1)
1. A + -800kV converter station direct current field high voltage equipment mounting structure which is characterized in that: the high-voltage coupling capacitor type power supply comprises an 800kV isolating switch foundation (1), a high-voltage smoothing reactor foundation (2) and an 800kV coupling capacitor support structure (3), wherein the 800kV isolating switch foundation (1) comprises an 800kV ungrounded isolating switch foundation (1 a), an 800kV single-grounded isolating switch foundation (1 b) and an 800kV double-grounded isolating switch foundation (1 c), the 800kV ungrounded isolating switch foundation (1 a), the 800kV single-grounded isolating switch foundation (1 b) and the 800kV double-grounded isolating switch foundation (1 c) are distributed in a < '> shape structure, the high-voltage smoothing reactor foundation (2) is arranged on the opening side of the <' > shape structure, and the 800kV coupling capacitor support structure (3) and the 800kV double-grounded isolating switch foundation (1 c) are mutually parallel;
the 800kV isolating switch foundation (1) comprises a plurality of 800kV grounding isolating switch bases (11) which are arranged in a straight line shape, and a plurality of 800kV grounding isolating switch mounting base posts (12) are respectively formed on each 800kV grounding isolating switch base (11);
a plurality of foundation bolts (13) are fixedly connected to the 800kV grounding isolating switch installation base column (12), and the 800kV grounding isolating switch installation base column (12) on which the foundation bolts (13) on the same 800kV grounding isolating switch installation base column (12) are arranged is surrounded;
the foundation bolts (13) are of L-shaped structures, bending parts of the foundation bolts are embedded in the 800kV grounding isolating switch installation base column (12), and bending parts of the foundation bolts (13) point to the central axis of the 800kV grounding isolating switch installation base column (12) where the foundation bolts are located;
the main body structure of the 800kV coupling capacitor bracket structure (3) comprises 800kV coupling capacitor bracket mounting seats (31) and 800kV coupling capacitor brackets (32), wherein a plurality of 800kV coupling capacitor bracket mounting seats (31) are arranged and distributed in an annular shape; a fixed connection structure is formed between the bottom of the 800kV coupling capacitor bracket (32) and the 800kV coupling capacitor bracket mounting seat (31);
a plurality of 800kV coupling capacitor bracket mounting base posts (310) are respectively formed on the same 800kV coupling capacitor bracket mounting base (31), and a plurality of foundation bolts (13) are fixedly connected on the 800kV coupling capacitor bracket mounting base posts (310);
the foundation bolts (13) are of L-shaped structures, bending parts of the foundation bolts are embedded in the 800kV coupling capacitor bracket mounting base column (310), and bending parts at the bottoms of the foundation bolts (13) point to the central axis of the 800kV coupling capacitor bracket mounting base column (310) where the foundation bolts are located;
the 800kV coupling capacitor bracket (32) is a lattice bracket formed by framework upright posts (320), framework cross beams (321) and framework diagonal braces (322), each framework upright post (320) is fixedly connected with two independent framework cross beams (321), and the framework diagonal braces (322) are arranged between two adjacent framework cross beams (321);
the framework upright post (320) is a single-tube post, the bottom of the framework upright post (320) is fixedly connected with a fixed ring (325), the fixed ring (325) is provided with a slurry overflow hole (329), and the slurry overflow hole (329) is communicated with the inner cavity of the framework upright post (320);
the framework upright post (320) and framework cross beam (321) joint part fixed connection terminal plate (326), form fixed connection between terminal plate (326) and framework bracing (322), set up between two adjacent framework bracing (322) that intercrossed and abut plate (327), abut plate (327) and adjacent framework bracing (322) between form fixed connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072668.7A CN107620315B (en) | 2017-11-03 | 2017-11-03 | Mounting structure of direct-current field high-voltage equipment of +/-800 kV converter station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072668.7A CN107620315B (en) | 2017-11-03 | 2017-11-03 | Mounting structure of direct-current field high-voltage equipment of +/-800 kV converter station |
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| CN107620315A CN107620315A (en) | 2018-01-23 |
| CN107620315B true CN107620315B (en) | 2023-06-16 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201319340Y (en) * | 2008-11-25 | 2009-09-30 | 河南平高电气股份有限公司 | Open type high-voltage combined isolating switch |
| CN201638731U (en) * | 2010-04-21 | 2010-11-17 | 山东泰开隔离开关有限公司 | Telescopic outdoor high-voltage alternate-current isolating switch with dual-column horizontal fracture |
| CN201975787U (en) * | 2010-12-23 | 2011-09-14 | 中国电力工程顾问集团西南电力设计院 | +/-800 kV convertor station direct-current filter suspension mounting structure |
| CN102570482A (en) * | 2012-02-13 | 2012-07-11 | 绍兴电力局 | High voltage parallel capacitor device based on neutral point direct grounding mode |
| WO2014153729A1 (en) * | 2013-03-27 | 2014-10-02 | Abb Technology Ltd. | Bipolar high/low voltage converter station for series mtdc system |
| CN103956763B (en) * | 2014-04-01 | 2016-06-29 | 中国能源建设集团广东省电力设计研究院有限公司 | Flexible direct current converter station |
| CN204257330U (en) * | 2014-11-24 | 2015-04-08 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of 500kV transformer isolation structure |
| CN106385047B (en) * | 2016-11-18 | 2019-01-01 | 南方电网科学研究院有限责任公司 | The bipolar wiring flexible direct current converter station of full-bridge topology and its neutral conductor termination |
| CN207392229U (en) * | 2017-11-03 | 2018-05-22 | 中国电力工程顾问集团西南电力设计院有限公司 | One kind ± 800kV current conversion station DC fields high voltage installation mounting structures |
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