Design of the control system for thyristor switched capacitor devices

Author

Jianhua, Zhang ; Dai Guanping ; Gang, Xiao ; Jie, Zhao ; Hui, Zhang ; Shuying, Wang

Author_Institution

Dept. of Electr. Eng., North China Electr. Power Univ., Beijing, China

Volume

2

fYear

2003

fDate

7-12 Sept. 2003

Firstpage

606

Abstract

A thyristor switched capacitor (TSC) device applied in 6 to 10 KV power distribution systems is described in the paper, which can switch on the capacitors without over inrush current and switch off at the instant when current is reduced to zero. The conditions of non-transient switch on/off are discussed first, and a voltage detecting principle for the medium voltage TSC is introduced. The proposed TSC is simple in structure. On-site test result shows that the zero-voltage detect method is correct and reliable, and the switch-on performance is satisfactory.

Keywords

capacitor switching; control system synthesis; power distribution control; switched capacitor networks; thyristors; 6 to 10 kV; control system design; inrush current; medium voltage; nontransient switch; power distribution systems; thyristor switched capacitor devices; zero-voltage detect method; Control systems; Frequency; Medium voltage; Power system reliability; Reactive power; Surges; Switched capacitor circuits; Switched capacitor networks; Switches; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition, 2003 IEEE PES

Print_ISBN

0-7803-8110-6

Type

conf

DOI

10.1109/TDC.2003.1335345

Filename

1335345