CN202564957U - Capacitor platform of series compensated device - Google Patents
Capacitor platform of series compensated device Download PDFInfo
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- CN202564957U CN202564957U CN 201120550563 CN201120550563U CN202564957U CN 202564957 U CN202564957 U CN 202564957U CN 201120550563 CN201120550563 CN 201120550563 CN 201120550563 U CN201120550563 U CN 201120550563U CN 202564957 U CN202564957 U CN 202564957U
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model belongs to the field of flexible AC power transmission of an electric power system, and more specifically relates to a capacitor platform of a series compensated device. According to the technical scheme, the capacitor platform of the series compensated device is compact in layout and reasonable in structure, and can be used for fixing the series compensated device and especially used for fixing series-connected capacitor compensation devices with 750V and 1000kV voltage grades. According to the technical scheme, insulation of main equipment is fully considered, overall arrangement of all main equipment is coordinated, the main equipment is reasonably placed, force applied to all points is balanced, and the space of the platform is utilized reasonably.
Description
Technical field
The utility model belongs to the flexible ac transmission of electric power system (FACTS) field; Be specifically related to a kind of capacitor platform of mending device of going here and there; Be specially adapted to the fixed series capacitors compensation arrangement of fixed series capacitors compensation arrangement (FSC), especially 750kV, 1000kV electric pressure.
Background technology
There are very big-difference in whole world primary energy and the distribution of electric load on the geographical position, and this difference is particularly outstanding China's performance.Along with economic development; Imbalance between supply and demand between energy resource supply and electricity consumption is on the rise; At a distance, big capacity, trans-regional transmission of electricity can effectively alleviate imbalance between power supply and demand, become one of modern power systems most important characteristic, but also the ability to transmit electricity of electrical network had higher requirement simultaneously.
The series capacitor compensation technology of AC transmission system (being called for short string mends) is that power capacitor is series in the transmission line of alternation current; The part emotional resistance of compensation transmission line of alternation current, thus reach purposes such as increasing circuit transmission capacity, the raising stability of a system, saving investment.In remote, large capacity transmission system; Increase along with transmission distance; Its conveying capacity receives increasing restriction; And the string benefit is to address this problem, improve the ultra-high/extra-high voltage transmission line to send one of important means of electric energy power, has very huge economic, in the electric power system of countries in the world, has received at present widely to use.
The capacitor platform of existing 500kV fixed series compensation is generally rectangular platform, laterally puts, and is followed successively by capacitor group, metal oxide pressure-limiting device MOV, damping resistance-MOV, damping reactor and the spark gap GAP of single H bridging line from right to left.Wherein, in most cases the capacity of damping reactor, damping resistance-MOV is little, adopts single structure, and area occupied is less, so damping device (comprises damping reactor, damping resistance-MOV) be arranged in juxtaposition up and down with the general employing of spark gap.Capacitor unsymmetrical current instrument transformer CT is positioned in the middle of capacitor group two brachium pontis of H bridging line.Busbar is straight line along the long limit of rectangle; Generally speaking, busbar direct and capacitor platform short circuit in long limit under the rectangle, therefore; Long limit busbar is defined as the low pressure busbar under the rectangle, and long limit busbar is higher and be defined as the high pressure busbar with respect to the current potential of capacitor platform on the rectangle.Usually, minor face the first half edge, a platform left side also has one section with the busbar that connects string benefit device bypass breaker, and this busbar is also referred to as the circuit breaker busbar, is used to connect bypass breaker.
Adopting the fixed series compensation of dual H-bridge wiring with the capacitor group is example (shown in main circuit structure sketch map such as the accompanying drawing 1); Except that bypass breaker, isolating switch and control protection system etc., the capital equipment that string is mended device also comprises: adopt the capacitor platform of steel construction, the capacitor group that adopts the dual H-bridge wiring, metal oxide pressure-limiting device MOV, spark gap GAP, damping device, current transformer CT, low/high pressure busbar and connect gold utensil.H bridge joint line style capacitor group upper end links to each other with the high pressure busbar, and the lower end links to each other with the low pressure busbar.The upper end links to each other with the high pressure busbar after two groups of each unit parallel connections of MOV branch road, and the lower end links to each other with the low pressure busbar.The upper end links to each other with the high pressure busbar after damping reactor and the damping resistance+MOV parallel connection, and the lower end links to each other with GAP, and the GAP lower end links to each other with the low pressure busbar.Along with rising (750kV and 1000kV) the capacitor unit showed increased of electric pressure, the structure of single H bridging line can't satisfy application need, needs to adopt dual H-bridge parallel-connection structure even three H bridge parallel-connection structures; The also corresponding increase of damping device capacity needs to adopt parallelly connected scheme.Consider that the equipment on the string benefit device capacitor platform is more; Connect relative complex; Satisfying maintenance, be convenient for changing on the basis of equipment simultaneously; Need satisfy corresponding electrical insulation properties again, therefore, to the mounting technique of metal oxide pressure-limiting device MOV, spark gap and damping device etc. and having relatively high expectations of mounting process.
These are all mended with existing 500kV string and exist than big difference, and the arrangement of indiscriminately imitating the existing 500kV capacitor platform of employing can't make 1000kV/750kV capacitor platform arrange and produce a desired effect.Therefore, one of design brand-new, be applicable to that 750kV/1000kV capacitor platform arrangement is extremely urgent.
The utility model content
The purpose of the utility model provides a kind of capacitor platform arrangement of mending device of going here and there, and can be used for the fixed series compensation device, and this arrangement takes into full account the main equipment insulation; Coordinate the general layout of each main equipment; Rationally put, the balance each point is stressed, realizes rationally utilizing the purpose of platform space.
The purpose of the utility model is to adopt following technical proposals to realize:
A kind of capacitor platform of mending device of going here and there, said capacitor platform comprises the capacitor group of at least one, the metal oxide pressure-limiting device MOV of at least one, the spark gap GAP of at least one and the damping device of at least one; Said capacitor platform adopts steel construction to process, and its improvements are that metal oxide pressure-limiting device MOV, spark gap GAP and damping device are arranged on the said capacitor platform, comprise following scheme:
Said capacitor platform is laterally put; Said capacitor group is provided with damping device, spark gap GAP and metal oxide pressure-limiting device MOV opposition respectively; Said damping device, spark gap GAP and metal oxide pressure-limiting device MOV are arranged on the same side of said capacitor platform; Said damping device is arranged at top or the mirror image of spark gap GAP and metal oxide pressure-limiting device MOV and puts.
A kind of optimized technical scheme that the utility model provides is: said capacitor platform comprises current transformer CT, low pressure busbar, high pressure busbar and the circuit breaker busbar of at least one; Said at least one current transformer CT is arranged between the capacitor group.
Second optimized technical scheme that the utility model provides is: said capacitor group adopts the dual H-bridge wiring.
The 3rd optimized technical scheme that the utility model provides is: said damping device comprises damping reactor, damping resistance and metal oxide pressure-limiting device MOV '; Said damping resistance and metal oxide pressure-limiting device MOV ' form damping resistance-MOV ' device.
The 4th optimized technical scheme that the utility model provides is: said low pressure busbar is connected with the brachium pontis of capacitor group behind the minor face cross central line along edge, the long limit of platform again, is the L type of buckle.
The 5th optimized technical scheme that the utility model provides is: the last brachium pontis of the capacitor group of said dual H-bridge wiring is connected with said high pressure busbar; Connecting the back between the following brachium pontis successively is connected with said low pressure busbar.
The 6th optimized technical scheme that the utility model provides is: said damping device is arranged between cross central line low pressure busbar and the high pressure busbar; Said spark gap GAP and metal oxide pressure-limiting device MOV are arranged at the opposing party of cross central line low pressure busbar.
The 7th optimized technical scheme that the utility model provides is: be connected with the circuit breaker busbar with the high pressure busbar after at least two damping reactor is connected in parallel again.
The 8th optimized technical scheme that the utility model provides is: the damping resistance-MOV ' device of at least one is arranged at the gap of damping reactor connecting line; After being connected in parallel, said damping resistance-MOV ' device is connected with spark gap GAP with the high pressure busbar respectively.
The 9th optimized technical scheme that the utility model provides is: said at least one metal oxide pressure-limiting device MOV series connection back forms the MOV branch road; The two ends of said MOV branch road are connected with the low pressure busbar with the high pressure busbar respectively.
Compared with prior art, the beneficial effect that reaches of the utility model is:
The string that the utility model provides is mended rational in infrastructure, the layout compactness of capacitor platform arrangement of device; Can save the space effectively, coordinate the general layout of each main equipment; The balance each point is stressed; Satisfy main equipment insulating requirements, the convenient installation, be specially adapted to 750kV/1000kV ultra high voltage fixed series compensation engineering.
Description of drawings
Fig. 1 is the single-phase schematic diagram that the capacitor group adopts the fixed series compensation of dual H-bridge type wiring;
Fig. 2 is the serial compensation capacitance applicator platform arrangement 1 according to the utility model;
Fig. 3 is the serial compensation capacitance applicator platform arrangement 2 according to the utility model.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed description.
The capacitor platform that the string that the utility model provides is mended device comprises capacitor group 1, metal oxide pressure-limiting device MOV 2, spark gap GAP 3, damping device 4, current transformer CT 8; These equipment reasonably are arranged on the capacitor platform that adopts steel construction.
The string that the utility model provides is mended the capacitor platform of device and is arranged the following design of employing:
Scheme 1: the vertical view of the capacitor platform arrangement of string benefit device is as shown in Figure 2; Wherein, the capacitor platform is laterally put, and capacitor group 1 centralized arrangement is on the right side of capacitor platform; Damping device 4, spark gap GAP 3, metal oxide pressure-limiting device MOV 2 are arranged in the left side of platform; Also but mirror image is put, mirror image put be capacitor group 1 centralized arrangement in the left side of capacitor platform, damping device 4, GAP 3, MOV 2 are arranged in the right side of capacitor platform; Wherein, damping device 4 up, GAP 3 and MOV 2 below, but also mirror image is put, mirror image is put be GAP 3 with MOV 2 up, damping device 4 below.
Scheme 2: the vertical view of the capacitor platform arrangement of string benefit device is as shown in Figure 3; Wherein the capacitor platform is laterally put; Capacitor group 1 centralized arrangement is above the capacitor platform, and damping device 4, GAP 3 and MOV 2 are arranged in the below of platform, but also mirror image is put; Mirror image put be capacitor group 1 centralized arrangement below the capacitor platform, damping device 4, GAP 3 and MOV 2 are arranged in the top of platform; Wherein, damping device 4 is in the left side, and GAP 3 and MOV 2 are on the right side, but also mirror image is put, mirror image is put be GAP 3 with MOV2 in the left side, damping device 4 is on the right side.
Following embodiment is the indefiniteness embodiment of the utility model.
Embodiment 1
Adopting the fixed series capacitors compensation arrangement of dual H-bridge type wiring with the capacitor group below is example, and capacitor platform arrangement 1 is set forth embodiment in detail:
Fig. 1 is that the capacitor group adopts the single-phase schematic diagram of fixed series compensation of dual H-bridge type wiring, and its platform arranges that vertical view is as shown in Figure 2, and among the figure, outer black band round rectangle representes that string mends device and get steel construction capacitor platform.Wherein, The two-wire that is positioned at edge, the long limit of platform is a busbar, and wherein, platform top busbar is a straight line; This busbar is a high pressure busbar 6; Platform below busbar is turned left straight-line extension to platform edges from the right side, and Shunping County's platform extends till the capacitor group Bridge 1 arm middle part that Far Left is laid to platform cross central line 9 after turning round and being extended down to minor face middle part, the platform left side, and this busbar is a low pressure busbar 5; Minor face the first half edge, a platform left side also has one section to be used to connect the busbar that string is mended device bypass breaker 71, and this busbar is a circuit breaker busbar 7.
All main equipments all are arranged in each busbar position intermediate.Wherein, the right is the capacitor group 1 of dual H-bridge wiring, wherein; Be arranged side by side about two H bridges, two unbalanced current transformer CT 8 of capacitor are positioned at the centre of two H bridges, go up brachium pontis and are connected with high pressure busbar 6 respectively for four of two H bridges; Four following brachium pontis link to each other in twos, and brachium pontis is connected with the end of the low pressure busbar 5 that is positioned at cross central line 9 under that H bridge of Far Left, and connected mode does not limit this a kind of; But principle is unified, that is: a side of H bridge brachium pontis links to each other with high pressure busbar 6, and opposite side links to each other with low pressure busbar 5; If capacitor group 1 adopts 3 or more H bridge constructions; Still adopt the layout in the scheme 1, capacitor group 1 is expanded lattice more to the right, centralized arrangement is on the platform right side.
Other main equipment is positioned at the left side of platform, and is adjacent with capacitor group 1.Wherein, damping device 4 is positioned at the top of the low pressure busbar 5 of cross central line 9, and GAP 3 and MOV 2 are positioned at the below of low pressure busbar 5.
Adopting the fixed series capacitors compensation arrangement of dual H-bridge type wiring with the capacitor group below is example, and capacitor platform arrangement 2 is set forth embodiment in detail:
The serial compensation capacitance applicator platform vertical view of scheme 2 is as shown in Figure 3, and wherein, different with scheme 1 is:
The low pressure busbar becomes inverted T shape to be arranged on the capacitor platform; The treasured lid type that high pressure busbar 6 is buckle is arranged on the capacitor platform; The capacitor group 1 of dual H-bridge wiring is symmetricly set on the both sides of the low pressure busbar 5 of inverted T shape; Capacitor group 1 one ends are connected with high pressure busbar 6, and the other end is connected with low pressure busbar 5.
Definition about the high and low pressure busbar; Because there is voltage difference in the capacitor two ends; So certainly exist high-pressure side and low-pressure side on the platform, a side that will equate with plateau potential is defined as low-pressure side, and the busbar that connects all devices low-pressure side is defined as low pressure busbar 5; One side that will be higher than platform voltage is defined as the high-pressure side, connects the on high-tension side busbar of all devices and is defined as high pressure busbar 6.
A kind of compact in design that the utility model provides, string rational in infrastructure are mended the capacitor platform arrangement of device, can be used for the fixed series capacitors compensation arrangement, are particularly useful for the fixed series capacitors compensation arrangement of 750kV, 1000kV electric pressure.
Should be noted that at last: above embodiment is only in order to the technical scheme of explanation the utility model but not to the restriction of its protection range; Although the utility model has been carried out detailed explanation with reference to the foregoing description; The those of ordinary skill in affiliated field is to be understood that: those skilled in the art still can carry out all changes, revise or be equal to replacement to the embodiment of application after reading the utility model; These changes, modification perhaps are equal to replacement, and it is all within the claim scope that its application is awaited the reply.
Claims (10)
1. go here and there the capacitor platform of mending device for one kind, said capacitor platform comprises the capacitor group of at least one, the metal oxide pressure-limiting device MOV of at least one, the spark gap GAP of at least one and the damping device of at least one; Said capacitor platform adopts steel construction to process, and it is characterized in that metal oxide pressure-limiting device MOV, spark gap GAP and damping device are arranged on the said capacitor platform, comprise following scheme:
Said capacitor platform is laterally put; Said capacitor group is provided with damping device, spark gap GAP and metal oxide pressure-limiting device MOV opposition respectively; Said damping device, spark gap GAP and metal oxide pressure-limiting device MOV are arranged on the same side of said capacitor platform; Said damping device is arranged at top or the mirror image of spark gap GAP and metal oxide pressure-limiting device MOV and puts.
2. capacitor platform as claimed in claim 1 is characterized in that, said capacitor platform comprises current transformer CT, low pressure busbar, high pressure busbar and the circuit breaker busbar of at least one; Said at least one current transformer CT is arranged between the capacitor group.
3. capacitor platform as claimed in claim 1 is characterized in that, said capacitor group adopts the dual H-bridge wiring.
4. capacitor platform as claimed in claim 1 is characterized in that, said damping device comprises damping reactor, damping resistance and metal oxide pressure-limiting device MOV '; Said damping resistance and metal oxide pressure-limiting device MOV ' form damping resistance-MOV ' device.
5. according to claim 1 or claim 2 capacitor platform is characterized in that, said low pressure busbar is connected with the brachium pontis of capacitor group behind the minor face cross central line along edge, the long limit of platform again, is the L type of buckle.
6. capacitor platform as claimed in claim 3 is characterized in that, the last brachium pontis of the capacitor group of said dual H-bridge wiring is connected with said high pressure busbar; Connecting the back between the following brachium pontis successively is connected with said low pressure busbar.
7. capacitor platform as claimed in claim 4 is characterized in that, said damping device is arranged between cross central line low pressure busbar and the high pressure busbar; Said spark gap GAP and metal oxide pressure-limiting device MOV are arranged at the opposing party of cross central line low pressure busbar.
8. capacitor platform as claimed in claim 4 is characterized in that, is connected with the circuit breaker busbar with the high pressure busbar after at least two damping reactor is connected in parallel again.
9. capacitor platform as claimed in claim 4 is characterized in that, the damping resistance-MOV ' device of at least one is arranged at the gap of damping reactor connecting line; After being connected in parallel, said damping resistance-MOV ' device is connected with spark gap GAP with the high pressure busbar respectively.
10. capacitor platform as claimed in claim 1 is characterized in that, said at least one metal oxide pressure-limiting device MOV series connection back forms the MOV branch road; The two ends of said MOV branch road are connected with the low pressure busbar with the high pressure busbar respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120550563 CN202564957U (en) | 2011-12-26 | 2011-12-26 | Capacitor platform of series compensated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120550563 CN202564957U (en) | 2011-12-26 | 2011-12-26 | Capacitor platform of series compensated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564957U true CN202564957U (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120550563 Expired - Fee Related CN202564957U (en) | 2011-12-26 | 2011-12-26 | Capacitor platform of series compensated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437581A (en) * | 2011-12-26 | 2012-05-02 | 中电普瑞科技有限公司 | Capacitor platform for series compensator |
| CN105870934A (en) * | 2016-01-14 | 2016-08-17 | 国家电网公司 | Metal oxide varistor (MOV) based series compensation device |
-
2011
- 2011-12-26 CN CN 201120550563 patent/CN202564957U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437581A (en) * | 2011-12-26 | 2012-05-02 | 中电普瑞科技有限公司 | Capacitor platform for series compensator |
| WO2013097521A1 (en) * | 2011-12-26 | 2013-07-04 | 中电普瑞科技有限公司 | Capacitor platform for series compensation device |
| CN102437581B (en) * | 2011-12-26 | 2014-05-21 | 中电普瑞科技有限公司 | Capacitor platform for series compensator |
| CN105870934A (en) * | 2016-01-14 | 2016-08-17 | 国家电网公司 | Metal oxide varistor (MOV) based series compensation device |
| CN105870934B (en) * | 2016-01-14 | 2018-07-31 | 国家电网公司 | A kind of series compensation device based on MOV |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20171226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |