Title :
Passive Control on the Negative Effect of Thyristor Switched Capacitor (I)
Author :
Wang Li-guo ; Xia Yu ; Ren Xiang ; Xu Dian-Guo ; Xu Zhuang
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
The passive control method that apply the passive power filter (PPF) to suppress negative effect of the Thyristor Switched Capacitor (TSC) is given in this paper, in order to improve zero-crossing voltage detection algorithm of controller of TSC. The study aims to suppress transient surge of reactive power induced by the TSC to a point of common coupling (PCC) of the power distribution system. In order to avoid parallel resonance of TSC with PPF to equivalent reactor of the PCC, differential equations that described dynamic behaviors of TSC with PPF are derived by network thermodynamics modeling method. The results show that by proposing method total harmonic distortion (THD) of the current of 6.3kV bus may be decreased to 2% from 17.49%.
Keywords :
capacitors; differential equations; harmonic distortion; passive filters; power distribution control; power filters; reactive power; surge protection; thermodynamics; thyristor applications; differential equation; dynamic behavior; negative effect suppression; parallel resonance; passive control; passive power filter; point of common coupling; power distribution system; reactive power; thermodynamics modeling; thyristor switched capacitor; total harmonic distortion; transient surge suppression; voltage 6.3 kV; zero crossing voltage detection algorithm; Capacitors; Harmonic analysis; Power harmonic filters; Power system dynamics; Reactive power; Surges;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6253-7
DOI :
10.1109/APPEEC.2011.5748810
