基于GCSC抑制串补输电线路中次同步振荡的研究  

Research on Damping Subsynchronous Resonance (SSR) Using Gate-Controlled Series Capacitors (GCSC) in Series Compensated System

作　　者：任先文[1] 孔祥实[1] 王勋[1] 夏庆生[2] 

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012 [2]东北电力设计院,长春130022

出　　处：《电测与仪表》2012年第4期55-58,共4页Electrical Measurement & Instrumentation

摘　　要：含有串联补偿的电力系统中,在某些情况下有可能发生次同步谐振(SSR),损坏发电机轴系。运用Gate-Controlled Series Capacitors(GCSC)可以有效的抑制或消除次同步谐振。本文将基于IEEE Frist BenchmarkModel和轴系扭曲模型,运用过零检测装置控制GCSC的关断脉冲,从而改变串联补偿线路的等值电抗,破坏次同步谐振的发生条件,达到抑制次同步谐振的目的。并且运用Matlab Simulink仿真系统对轴系参数进行仿真对比,仿真结果表明在串补线路中运用GCSC可以有效地抑制次同步谐振。It maybe happen subsynchronous resonance（SSR） in some cases,which lead to damage generator shaft in series compensated system.Gate-Controlled Series Capacitors（GCSC） can effectively mitigate or eliminate subsynchronous resonance.This investigation was done based on the IEEE First Benchmark Model and shafting model.Turn-off pulse generator with zero crossing detectors is used for GCSC controlling to break down the subsynchronous resonance happened conditions in order to damp SSR.The Matlab Simulink is employed to simulate the effect on stresses of shaft.The simulations results show that it can inhibit subsynchronous resonance.

关 键 词：次同步谐振 GCSC 过零检测 轴系扭曲 

分 类 号：TM711[电气工程—电力系统及自动化]