摘要
提出了一种控制ＡＳＶＧ（ａｄｖａｎｃｅｄｓｔａｔｉｃｖａｒｇｅｎｅｒａｔｏｒ）驱动脉冲的方法使ＡＳＶＧ装置发出正序电压的同时也产生负序电压，以抵消系统负序电压分量，抑制流过ＡＳＶＧ的负序电流。并用“开关函数”建模法给出了具体的控制算法。用该控制算法可使ＡＳＶＧ在系统出现１５％的负序电压时仍能正常地工作而不过流。
? In this paper, an approach controlling the triggering pulse of GTOs of advanced static var generator (ASVG) to generate a negative sequence voltage component while generating positive sequence voltage to counteract the system negative sequence component in order to suppress the negative sequence current through ASVG caused by system negative sequence voltage is presented. An algorithm to control the triggering pulse of ASVG is proposed based on modelling ASVG with “function of switchings” method. ASVG can operate normally and not overcurrent under a 15% negative sequence voltage component in system voltage with this control algorithm. Simulation results show that the analysis and algorithm are correct.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1997年第7期26-29,共4页
Journal of Tsinghua University(Science and Technology)
关键词
静止无功发生器
电力系统
运行
GTO
不对称故障
advanced static var generator(ASVG)
asymmetry
negative sequence voltage component
