Control method for parellel reactor with ultra-high/extra-high voltage magnetic control type

A control method and reactor technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as no engineering application, and achieve the effects of increasing power transmission capacity, good robustness, and suppressing operating overvoltage

Active Publication Date: 2008-10-15
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, only the Russian CERC company has a 500kV single-phase test prototype for EHV / UHV magnetron shunt reactors, and there is no engineering application. The development of the main body and its control device is of great significance

Method used

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  • Control method for parellel reactor with ultra-high/extra-high voltage magnetic control type
  • Control method for parellel reactor with ultra-high/extra-high voltage magnetic control type
  • Control method for parellel reactor with ultra-high/extra-high voltage magnetic control type

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Embodiment Construction

[0036] The structure of the present invention will be described in detail below through embodiments and in conjunction with the accompanying drawings.

[0037] The EHV / UHV magnetically controlled shunt reactor control method is to ensure the reactive power balance and voltage stability of the transmission grid as the ultimate control goal, and also has the function of dynamically compensating the reactive power of the transmission line. The transmission line is compensated by the EHV / UHV magnetron shunt reactor, which can realize reactive power balance and voltage stability.

[0038] The control method of the super / ultra-high voltage magnetron shunt reactor of the present invention includes the following contents:

[0039] (1) First set up an EHV / UHV magnetron shunt reactor and excitation system, such as figure 1 As shown, the present invention includes three single-phase reactors and a rectifier ZD, and the A-phase reactors respectively include primary windings L A1 , L A2...

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Abstract

The invention relates to a control method for a supervoltage / extra-high voltage magnetically-controlled reactor in parallel, which is characterized in that: the control method is realized by controlling by-pass switches of a direct-current excitation system and an excitation winding of the magnetically-controlled reactor in parallel, and includes that a homeostatic control method and a transient control method: 1 the homeostatic control method is an automatic adjusting mode in a homeostatic condition, namely, when the voltage fluctuation of electric networks exceeds the set range, a controller automatically adjusts the capacity of the reactor to maintain the stability of the voltage of the electric networks or automatically adjusts the output current based on the set reactive capacity to maintain the constant reactive power output of the reactor in parallel; 2 the transient control method includes (1) a process control method for no-load power transmission; (2) a control method for a three-phase tripping of an onside breaker; (3) a control method for a single-phase tripping and single-phase grounding; (4) a circuit disconnection control method.

Description

technical field [0001] The invention relates to a control method of a reactor, in particular to a control method of an ultra / ultra-high voltage magnetron shunt reactor. Background technique [0002] In EHV / UHV power grids, controllable shunt reactor technology is a technology that coordinates the contradiction between reactive power regulation and overvoltage suppression in ultra-long-distance EHV lines and UHV lines, and is also a key technology necessary for the construction of UHV AC power grids One of them has broad application prospects. The controllable shunt reactor has the advantages of high reliability, low cost, small footprint, and simple operation and maintenance. Its application can not only simplify reactive power voltage control measures, but also improve line transmission power, improve system stability, and limit power frequency Therefore, it is of great significance and role for the development and construction of ultra-high voltage and ultra-high voltage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P13/00H02J3/00H02H7/22
Inventor 王轩崔大伟邓占锋谢敏华张新刚雷晰于坤山
Owner CHINA ELECTRIC POWER RES INST
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