基于电力系统混合仿真的低频振荡误差校正策略  

An Error Emendation Strategy for Low Frequency Oscillation Based on Power System Hybrid Simulation

作　　者：杨俊新[1] 马进[1] 陶华[1] 

机构地区：[1]华北电力大学电力系统保护与动态安全监控教育部重点实验室,北京市102206

出　　处：《电力系统自动化》2010年第8期20-23,共4页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(50707009);高等学校博士学科点专项科研基金资助项目(20070079014);北京市科技新星计划资助项目;"111"引智计划资助项目(B08013)~~

摘　　要：针对目前动态仿真存在的模型、参数不准确这一现状,以IPLAN程序控制语言为二次开发平台,基于电力系统混合仿真,提出了一种缩小低频振荡分析误差的策略,即在电力系统仿真软件PSS/E中用接地时变导纳进行动态等值以实施混合仿真,并对区域联络线传输功率进行Prony分析,然后依据特征根灵敏度和参数辨识技术对其进行误差校正。算例表明了其可行性和正确性。By applying the control language IPLAN of PSS/E,this paper presents a strategy to reduce the errors in analyzing low-frequency oscillations raised by the simulation parameter error. The first step of the proposed method is to implement the hybrid simulation in PSS/E with the partial power network replaced by the grounded time-varying admittance,followed by a Prony analysis of transferred power in the tie-line. Finally,the parameter errors are corrected via the relevant technologies of parameter identification and eigenvalue sensitivity. It is shown through an example that the strategy proposed is feasible and correct.

关 键 词：电力系统混合仿真 特征根灵敏度 误差量化 参数辨识 低频振荡 

分 类 号：TM743[电气工程—电力系统及自动化]