基于电力系统混合仿真的低频振荡研究  

Research on low frequency oscillation based on power system hybrid simulation

作　　者：杨俊新[1] 马进[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206

出　　处：《华东电力》2009年第11期1831-1834,共4页East China Electric Power

基　　金：国家自然科学基金项目(50707009);高等学校博士学科点专项科研基金项目(20070079014);电力系统及发电设备安全控制和仿真国家重点实验室开放项目(SKLD09KM04)

摘　　要：大电网互联导致电力系统低频振荡现象频繁发生,提出在PSS/E中进行混合仿真,将外部系统用接地时变导纳动态等值,基于此研究电力系统低频振荡。以6机23节点系统为算例,首先对全网动态仿真以获取实测数据,然后实施混合仿真,并对电网联络线潮流进行Prony分析,结果表明了这种方法的可行性、正确性。To deal with the frequent phenomenon of low frequency oscillation caused by interconnection of large power grids,a research method for low frequency oscillation based on power system hybrid simulation in PSS/E by replacing parts of the power grid with grounding time-varying admittance was proposed.By using the 6-machine 23-bus system,the real data was firstly obtained through dynamic simulation of the whole network,and then the hybrid simulation was carried out,followed by the Prony analysis of tie-line power flow. The results proved the method feasible and effective.

关 键 词：低频振荡 电力系统混合仿真 PSS/E PRONY分析 

分 类 号：TM743[电气工程—电力系统及自动化]