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Reconstruction configuration method of thyristor controlled reactor (TCR) valve block

A technology of thyristor control and configuration method, which is applied in the direction of cable installation, electrical components, flexible AC transmission system, etc., can solve the problem of reconfigurable configuration method of twelve-pulse rectifier valve group without thyristor control reactor, and achieve obvious economical sexual effect

Active Publication Date: 2009-10-07
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology

[0004] There is no reconfigurable configuration method of the thyristor-controlled reactor (TCR) valve group and twelve-pulse rectifier valve group proposed by the present invention at home and abroad

Method used

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  • Reconstruction configuration method of thyristor controlled reactor (TCR) valve block
  • Reconstruction configuration method of thyristor controlled reactor (TCR) valve block
  • Reconstruction configuration method of thyristor controlled reactor (TCR) valve block

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Embodiment Construction

[0016] The thyristor-controlled reactor (TCR) valve group and the twelve-pulse rectifier valve group are composed of 12 groups of valve groups. Each group of valve groups is a thyristor series structure, and different numbers of thyristors are connected in series to adapt to different voltage levels. Different topologies can be formed by splitting, combining and reconfiguring - separately forming a thyristor controlled reactor (TCR) valve group and a thyristor rectifier, which can be flexibly used for SVC and rectification. main circuit such as figure 1 As shown (the symbol of the thyristor in the figure is actually a valve group of multiple thyristors connected in series). Two groups of six-pulse parallel valve groups, each thyristor is connected in parallel with all branches of the same group and different groups through the isolation switches ZA1, ZB1, ZC1, ZA2, ZB2, ZC2 of the branch respectively; Through the connection relationship between the branching of L1 and the con...

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Abstract

The present invention provides a reconstruction configuration method of thyristor controlled reactor (TCR) valve block which is simultaneously used as a twelve pulsations rectifying valve block. The thyristor controlled reactor (TCR) valve block which is simultaneously used as a twelve pulsations rectifying valve block is composed of twelve groups of valve blocks. Each group of valve blocks has a series structure of thyristor. Thyristors with different numbers are connected in series for adapting different voltage grades. Different topological structures are formed through resolution, combination and reconstruction. The thyristor controlled reactor valve block and the thyristor rectifier can be respectively formed for flexibly used for the static var compensation SVC and rectifying. According to the method of the invention, the thyristor controlled reactor (TCR) valve block which is simultaneously used as a thyristor rectifying valve block is resolved and recombined for forming different topological structures. Simultaneously the SVC is formed for var compensation, system pressure regulation and stability control. A rectifying system is formed in disaster weather for DC ice melting. The method of the invention has evident economical efficiency.

Description

technical field [0001] The invention belongs to the field of power systems, and in particular relates to a reconfiguration and configuration method for a thyristor-controlled reactor (TCR) valve group and a twelve-pulse rectification valve group. Background technique [0002] At the beginning of 2008, severe rain, snow and freezing disasters occurred in Central China, Southwest my country, and East China. The power grid facilities were seriously covered with ice and snow, and frequent tripping of disconnected and towered lines caused huge losses to the power grid. In some areas, the power grid was even destroyed. hit. Due to the small time and frequency of ice disasters, if the DC ice melting equipment can only be used as an ice melting device, its economic efficiency is poor. Static var compensation (SVC) and DC ice-melting device, in addition to meeting the needs of power transmission line ice-melting, can also be used as a conventional dynamic var compensation device in g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/16H02J3/18
CPCY02E40/12Y02E40/10
Inventor 张皎武守远周飞周胜军
Owner CHINA ELECTRIC POWER RES INST
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