CN101465549A - Reconstruction configuration method for two six-pulse parallel connection commutation group valve - Google Patents
Reconstruction configuration method for two six-pulse parallel connection commutation group valve Download PDFInfo
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- CN101465549A CN101465549A CNA2009100771395A CN200910077139A CN101465549A CN 101465549 A CN101465549 A CN 101465549A CN A2009100771395 A CNA2009100771395 A CN A2009100771395A CN 200910077139 A CN200910077139 A CN 200910077139A CN 101465549 A CN101465549 A CN 101465549A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008018 melting Effects 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 13
- 230000003068 static effect Effects 0.000 claims description 12
- 230000010349 pulsation Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
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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
- Y02E40/10—Flexible AC transmission systems [FACTS]
Abstract
The invention provides a reconstruction configuration method of a valve bank of a thyristor control reactor (TCR) and two six-pulsating parallel rectifying valve banks; the valve bank of the thyristor control reactor (TCR) and two six-pulsating parallel rectifying valve banks are composed of twelve valve banks, and each valve bank is a thyristor series structure, and the different number of thyristors are connected in series for being suitable for different voltage class, and different topological structures are formed by splitting, combination and reconstruction; the topological structures can respectively form the valve bank of the thyristor control reactor (TCR) and two six-pulsating parallel rectifying valve banks and can be flexibly applied to static-state reactive power compensation SVC and rectification. The method carries out splitting and reconstruction to the valve bank of the thyristor control reactor (TCR) and two six-pulsating parallel rectifying valve banks for forming the different topological structures; in normal time, SVC is formed for reactive power compensation, system voltage regulation and stable control, and in disaster climate, a rectifying system is formed for direct current de-icing, thus having remarkable economical efficiency.
Description
Technical field
The invention belongs to field of power, be specifically related to a kind of reconstruction configuration method of two six-pulse parallel connection rectifying valve groups.
Background technology
At the beginning of 2008, serious freezing rain and snow disaster has taken place in China Central China, southwest, East China, and electrical network facilities icing snowberg is serious, and wire breaking and tower falling line tripping phenomenon takes place frequently, and causes the electrical network massive losses, some areas electrical network even suffer crushing blow.Because time and frequency that ice damage takes place are all less, if DC ice melting equipment only can use as deicing device, its economy is relatively poor.Static reactive (SVC) DC de-icing device of holding concurrently, decapacitation is satisfied outside the transmission line ice-melt needs, and the general time also can be used as conventional dynamic reactive compensation device and uses, and supports for system provides dynamic reactive, the damping system low-frequency oscillation improves the system stability limit and conveying capacity.
At present, the domestic application that does not have this type of device.The present invention proposes double two six-pulse parallel connection rectifying valve group reconstruction configuration methods of thyristor-controlled reactor (TCR) valve group of the double deicing device of static reactive (SVC).
The thyristor valve mode of operation of the double DC de-icing device of restructural static reactive (SVC) depends primarily on the climatic environment condition, through the variable more needed pattern of the suitable switching of circuit breaker, isolating switch.General only just be operated in the DC ice melting pattern at severe winter, the lead floating ice of bad weather when comparatively serious, other times all are operated in static reactive (SVC) pattern, have improved comprehensive economy.
There is not the hold concurrently reconfigurable configuration method of two six-pulse parallel connection rectifying valve groups of this thyristor-controlled reactor (TCR) valve group that the present invention proposes both at home and abroad.
Summary of the invention
The present invention proposes a kind of reconstruction configuration method of two six-pulse parallel connection rectifying valve groups, it is characterized in that: double two the six-pulse parallel connection rectifying valve groups of thyristor-controlled reactor TCR valve group are made of 12 groups of valve groups altogether, every group of valve group is the thyristor cascaded structure, connect different thyristor numbers to adapt to different electric pressures, by splitting, combination and reconstruct, form different topological structures, can constitute thyristor-controlled reactor valve group and two six-pulse parallel connection rectifying valve groups respectively, be used for static reactive SVC and rectification flexibly, its main circuit structure is two groups of six-pulse parallel connection valve groups, each thyristor is respectively through this branch road isolating switch ZA1, ZB1, ZC1, ZA2, ZB2, ZC2 is connected in parallel with the corresponding branch road that reaches different group on the same group, the homophase valve of two groups of rectifier bridges connects by isolating switch L1 and carries out deciliter, and two of homophase thyristors are also respectively by isolating switch SA1 on the same group, SB1, SC1, SA2, SB2, SC2 carries out deciliter.
Wherein, when operational mode is static reactive SVC, isolating switch L1 and isolating switch SA1 close, SB1, SC1, SA2, SB2, SC2, draw back isolating switch ZA1, ZB1, ZC1, ZA2, ZB2, ZC2, by incoming line A1 in AC side, A2, A3, B1, B2, the last access of B3 reactor, both sides two reactors of connecting again constitute a phase behind per two thyristor valve tandems, three-phase is connected into dihedral, constitute thyristor-controlled reactor TCR, and can regulate the capacity output of static reactive power compensation SVC to satisfy the needs of system's pressure regulation and stable control by changing the different angle of flow of thyristor.
Wherein, when operational mode is DC ice melting, draw back isolating switch L1 and isolating switch SA1, SB1, SC1, SA2, SB2, SC2, isolating switch ZA1 closes, ZB1, ZC1, ZA2, ZB2, ZC2, a thyristor of every group links together, another thyristor of every group also links together, final two groups of both positive and negative polarity outputs that are respectively direct current in parallel again, thereby constitute two six pulsation rectifier bridge parallel-connection structures, it is as the main convertor equipment of DC ice melting mode operation, for the icing circuit provides DC ice melting current, the parallel connection of at least two six pulsation rectifier bridges can realize big electric current output, satisfy the ice-melt needs, control system is regulated the circuit direct current by the trigger angle that changes thyristor valve in the circuit deicing processes, applicable to different electric pressures, different parameters, the lead of different length.
The invention has the beneficial effects as follows: the thyristor rectifier valve assembling and dismantling of holding concurrently divide reorganization to thyristor-controlled reactor (TCR) valve group, constitute the different topology structure, constitute SVC at ordinary times and carry out reactive power compensation, system's pressure regulation and stable control, constitute commutation system in the disaster weather and carry out DC ice melting, have remarkable economy.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is the main circuit diagram that thyristor-controlled reactor (TCR) valve group is held concurrently two six-pulse parallel connection rectifying valve groups;
Fig. 2 is the circuit diagram that reconstitutes thyristor-controlled reactor (TCR) valve mode of static reactive (SVC) pattern;
Fig. 3 is the typical technique of painting circuit diagram of the thyristor-controlled reactor (TCR) of equivalence;
Fig. 4 is the circuit diagram that reconstitutes two the six pulsation rectifier bridges parallel connection of DC ice melting pattern.
Embodiment
Double two the six-pulse parallel connection rectifying valve groups of thyristor-controlled reactor (TCR) valve group are made of 12 groups of valve groups altogether, and every group of valve group is the thyristor cascaded structure, and the different thyristor numbers of connecting are to adapt to different electric pressures.Can be by fractionation, combination and reconstruct, formation different topology-constitute thyristor-controlled reactor (TCR) valve group and two six-pulse parallel connection rectifying valve groups respectively is used for SVC and rectification flexibly.Main circuit is (the thyristor symbol among the figure is actual to be the valve group of a plurality of thyristor series connection) as shown in Figure 1, two groups of six-pulse parallel connection thyristor valve groups, each thyristor valve group are respectively through this branch road isolating switch ZA1, ZB1, ZC1, ZA2, ZB2, ZC2 and reach different group corresponding branch road on the same group and be connected in parallel; The homophase valve of two groups of rectifier bridges by isolating switch L1 branch and control the annexation of thyristor valve; Two of homophase thyristor valves are also respectively by SA1, SB1, SC1, SA2, SB2, SC2 deciliter on the same group.
When operational mode is static reactive (SVC), L1, SA1, SB1, SC1, SA2, SB2, SC2 close, draw back ZA1, ZB1, ZC1, ZA2, ZB2, ZC2, by connecting reactor at AC side A1, A2, A3, B1, B2, B3, constitute thyristor-controlled reactor (TCR), as shown in Figure 2, both sides two the reactor three-phases of connecting again are connected into dihedral after the parallel connection of promptly per two thyristor valve groups, and equivalence can be drawn as the TCR typical case technique of painting shown in Figure 3.At this moment 12 groups of valves consist of TCR valve group, regulate the capacity output of SVC to satisfy system's pressure regulation and stable control needs by changing the different angle of flow of thyristor valve group.
When operational mode is DC ice melting, draw back L1, SA1, SB1, SC1, SA2, SB2, SC2, ZA1, ZB1, ZC1, ZA2, ZB2, ZC2 close, be linked to be two 6 pulsation rectifier bridge parallel-connection structures like this, as shown in Figure 4, a thyristor valve group of every group links together, and another thyristor valve group of every group also links together, final two groups of both positive and negative polarity outputs that are respectively direct current in parallel again.As the main convertor equipment of DC ice melting mode operation, for the icing circuit provides DC ice melting current, the parallel connection of two (or many) rectifier bridges can realize big electric current output, satisfies the ice-melt needs.For example every rectifier bridge is exported the 3000A direct current, and the 6000A electric current is promptly exported in two parallel connections, can satisfy most of transmission line ice-melt needs, if many exportable bigger electric currents of parallel connection.Control system is regulated the circuit direct current by the trigger angle that changes the thyristor valve group in the circuit deicing processes, applicable to the lead of different electric pressures, different parameters, different length.
Invention has been described according to specific exemplary embodiment herein.It will be conspicuous carrying out suitable replacement to one skilled in the art or revise under not departing from the scope of the present invention.Exemplary embodiment only is illustrative, rather than to the restriction of scope of the present invention, scope of the present invention is by appended claim definition.
Claims (3)
1, a kind of reconstruction configuration method of two six-pulse parallel connection rectifying valve groups, it is characterized in that: double two the six-pulse parallel connection rectifying valve groups of thyristor-controlled reactor TCR valve group are made of 12 groups of valve groups altogether, every group of valve group is the thyristor cascaded structure, connect different thyristor numbers to adapt to different electric pressures, by splitting, combination and reconstruct, form different topological structures, can constitute thyristor-controlled reactor valve group and two six-pulse parallel connection rectifying valve groups respectively, be used for static reactive SVC and rectification flexibly, its main circuit structure is two groups of six-pulse parallel connection valve groups, each thyristor is respectively through this branch road isolating switch ZA1, ZB1, ZC1, ZA2, ZB2, ZC2 is connected in parallel with the corresponding branch road that reaches different group on the same group, the homophase valve of two groups of rectifier bridges connects by isolating switch L1 and carries out deciliter, and two of homophase thyristors are also respectively by isolating switch SA1 on the same group, SB1, SC1, SA2, SB2, SC2 carries out deciliter.
2, reconstruction configuration method as claimed in claim 1, it is characterized in that: when operational mode is static reactive SVC, isolating switch L1 and isolating switch SA1 close, SB1, SC1, SA2, SB2, SC2, draw back isolating switch ZA1, ZB1, ZC1, ZA2, ZB2, ZC2, by incoming line A1 in AC side, A2, A3, B1, B2, the last access of B3 reactor, both sides two reactors of connecting again constitute a phase behind per two thyristor valve tandems, three-phase is connected into dihedral, constitute thyristor-controlled reactor TCR, and can regulate the capacity output of static reactive power compensation SVC to satisfy the needs of system's pressure regulation and stable control by changing the different angle of flow of thyristor.
3, reconstruction configuration method as claimed in claim 1, it is characterized in that: when operational mode is DC ice melting, draw back isolating switch L1 and isolating switch SA1, SB1, SC1, SA2, SB2, SC2, isolating switch ZA1 closes, ZB1, ZC1, ZA2, ZB2, ZC2, a thyristor of every group links together, another thyristor of every group also links together, final two groups of both positive and negative polarity outputs that are respectively direct current in parallel again, thereby constitute two six pulsation rectifier bridge parallel-connection structures, it is as the main convertor equipment of DC ice melting mode operation, for the icing circuit provides DC ice melting current, the parallel connection of at least two six pulsation rectifier bridges can realize big electric current output, satisfy the ice-melt needs, control system is regulated the circuit direct current by the trigger angle that changes thyristor valve in the circuit deicing processes, applicable to different electric pressures, different parameters, the lead of different length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100771395A CN101465549B (en) | 2009-01-16 | 2009-01-16 | Reconstruction configuration method for two six-pulse parallel connection commutation group valve |
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| CN2009100771395A CN101465549B (en) | 2009-01-16 | 2009-01-16 | Reconstruction configuration method for two six-pulse parallel connection commutation group valve |
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| CN101465549A true CN101465549A (en) | 2009-06-24 |
| CN101465549B CN101465549B (en) | 2012-01-18 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651135B (en) * | 2009-08-12 | 2010-12-29 | 荣信电力电子股份有限公司 | 66kV optically-controlled water-cooled thyristor valve group |
| CN102368614A (en) * | 2011-09-21 | 2012-03-07 | 中电普瑞科技有限公司 | Movable static var compensator and direct current ice-melting device and realization method thereof |
| CN102593777A (en) * | 2012-01-20 | 2012-07-18 | 南方电网科学研究院有限责任公司 | Design method of direct-current ice melting device with special converter transformer |
| CN103427386A (en) * | 2012-05-24 | 2013-12-04 | 南京南瑞继保电气有限公司 | Setting method of main loop of dual 6 ripple ice melting device |
| CN112039107A (en) * | 2020-08-28 | 2020-12-04 | 西安西电电力系统有限公司 | Flexible direct current transmission debugging system and flexible direct current transmission debugging live method |
| CN112366701A (en) * | 2020-11-04 | 2021-02-12 | 合肥联信电源有限公司 | Parallel connection method of static switches |
| CN113131428A (en) * | 2021-05-14 | 2021-07-16 | 南方电网科学研究院有限责任公司 | Variable-frequency controllable current source ice melting device |
| CN113131429A (en) * | 2021-05-14 | 2021-07-16 | 南方电网科学研究院有限责任公司 | Variable-frequency controllable current source ice melting device |
-
2009
- 2009-01-16 CN CN2009100771395A patent/CN101465549B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651135B (en) * | 2009-08-12 | 2010-12-29 | 荣信电力电子股份有限公司 | 66kV optically-controlled water-cooled thyristor valve group |
| CN102368614A (en) * | 2011-09-21 | 2012-03-07 | 中电普瑞科技有限公司 | Movable static var compensator and direct current ice-melting device and realization method thereof |
| CN102593777A (en) * | 2012-01-20 | 2012-07-18 | 南方电网科学研究院有限责任公司 | Design method of direct-current ice melting device with special converter transformer |
| CN102593777B (en) * | 2012-01-20 | 2015-08-19 | 南方电网科学研究院有限责任公司 | A kind of method for designing with special converter transformer DC de-icing device |
| CN103427386A (en) * | 2012-05-24 | 2013-12-04 | 南京南瑞继保电气有限公司 | Setting method of main loop of dual 6 ripple ice melting device |
| CN103427386B (en) * | 2012-05-24 | 2016-03-02 | 南京南瑞继保电气有限公司 | A kind of major loop method to set up of two 6 pulsation deicing devices |
| CN112039107A (en) * | 2020-08-28 | 2020-12-04 | 西安西电电力系统有限公司 | Flexible direct current transmission debugging system and flexible direct current transmission debugging live method |
| CN112366701A (en) * | 2020-11-04 | 2021-02-12 | 合肥联信电源有限公司 | Parallel connection method of static switches |
| CN113131428A (en) * | 2021-05-14 | 2021-07-16 | 南方电网科学研究院有限责任公司 | Variable-frequency controllable current source ice melting device |
| CN113131429A (en) * | 2021-05-14 | 2021-07-16 | 南方电网科学研究院有限责任公司 | Variable-frequency controllable current source ice melting device |
| CN113131428B (en) * | 2021-05-14 | 2023-02-28 | 南方电网科学研究院有限责任公司 | Variable-frequency controllable current source ice melting device |
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| CN101465549B (en) | 2012-01-18 |
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Owner name: CHINA ELECTRIC PRIME TECHNOLOGY CO., LTD. STATE EL Free format text: FORMER OWNER: CHINA ELECTRIC PRIME TECHNOLOGY CO., LTD. Effective date: 20130129 |
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Effective date of registration: 20130129 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee after: China Electric Power Research Institute Patentee after: CHINA EPRI SCIENCE & TECHNOLOGY Co.,Ltd. Patentee after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Chinese Electric Power Research Institute Patentee before: China Electric Power Research Institute Patentee before: CHINA EPRI SCIENCE & TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20120118 |