Method for regulating static var compensator of electricity transmission system

A technology for static var compensation and power transmission system, which is applied in flexible AC power transmission system, reactive power adjustment/elimination/compensation, and adjustment of electrical variables, etc., to improve safety and reliability, increase transmission capacity, improve stability and temporary The effect of state stability

Active Publication Date: 2006-05-03
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
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Problems solved by technology

This difficulty determines that the development of the static var compensator adjustment method for the transmission network is very technically difficult

Method used

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  • Method for regulating static var compensator of electricity transmission system
  • Method for regulating static var compensator of electricity transmission system
  • Method for regulating static var compensator of electricity transmission system

Examples

Experimental program
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Embodiment Construction

[0038] Refer to the attached figure, the electrical wiring of the static var compensator is shown in the figure.

[0039] The electrical wiring of SVC is 2 groups of 3-order single-tuned filters, 2 groups of 5-order single-tuned filters, 2 groups of 7-order single-tuned filters and 1 thyristor-controlled reactor (TCR) branch. All SVC branches are connected to the 35kV bus. The 35kV bus is the tertiary winding of two main transformers connected in parallel. The primary winding of the main transformer is the incoming line of the 220kV transmission line, and the secondary winding of the main transformer is the outgoing line of the 66kV transmission line.

[0040] This wiring method of SVC enables SVC to perform dynamic reactive power compensation for the entire transmission network of higher voltage level (220kV) at a relatively low voltage level (35kV), and can effectively adjust filter banks and transformer tap changers , so that the SVC can achieve the best control effect on t...

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Abstract

The invention relates to a static reactive power compensator adjusting method used in power transmission system. It comprises three combined regulation control tactics: it controls the reactor (TCR) antennal organs which is controlled by the bus wire thyristor to do perceptual reactive-load power constant adjustment; it controls the power filter device group (FC) and the fixed condenser band to do condenser reactive-load power interval adjustment; it controls the load transformer tapping switch (LTC) to do bus wire adjustment.

Description

technical field [0001] The invention relates to the core technology of a static var compensator (SVC) in a power system, in particular to an adjustment method of a static var compensator in a power transmission system. Background technique [0002] The adjustment method of the static var compensator in the power transmission system is the core technology of the control characteristics of the static var compensator in the power system, and it is the principle of writing the main control software of the static var compensator control system. The adjustment method of the static var compensator in the power transmission system is different from the control and adjustment method of the static var compensator for a single impact load in the general power distribution system. It is aimed at the operating state of the power transmission system. It is even more necessary to improve the working characteristics of the transmission network. The quality of its performance is the premise ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/70H02J3/18
CPCY02E40/10
Inventor 张皎武守远赵刚李长宇赵建军
Owner CHINA ELECTRIC POWER RES INST
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