Application of Bidirectional Power Converters to Overcome Some Disadvantages of SVC Substation  

作　　者：Ngo Duc Minh Le Tien Phong 

机构地区：[1]Power System Department, Electrical Faculty, Thai Nguyen University of Technology, Thai Nguyen 250000, Viet Nam

出　　处：《Journal of Energy and Power Engineering》2012年第12期2024-2030,共7页能源与动力工程（美国大卫英文）

摘　　要：When the authors research on the fact that some SVC （static var compensator） substations connected at some buses in power system, they realized that some main functions ensured to operate well. Those are： compensate reactive power following value U＊ according to the requirements of the Vietnamese power system dispath center, flit harmonic by passive filter... However, it still has some disadvantages of this substation that need to be overcome： use large number of main devices, generate harmonics by itself, cause a lot of active power losses. Thus, the authors have an idea to solve these problems by applying a bidirectional power converter with having difference circuit structure and PWM （pulse width modulation） controller with SVM （space vector modulation） pulse generated section, so compensative current which is created by inductance element can be reserved, adjust continuos and always has full sinusoidal form, not generating harmonic. The benefit of this new solution is to eliminate the three above fundamental disadvantages. This new model is built based on authors＇ research about BESS （battery energy storage system）. The research results have been verified by simulations in Matlab/Simulink software.

关 键 词：SVC TSC TCR BDPC reactive power harmonic. 

分 类 号：TM63[电气工程—电力系统及自动化] TM714.3