基于广域测量系统的暂态失稳判别方法适应性研究  

Adaptability Study on Wide Area Measurement System Based Transient Instability Detection Methods

作　　者：肖永 金小明 付超 门锟 徐梅梅 陈建斌 

机构地区：[1]贵州电力试验研究院,贵阳550005 [2]南方电网科学研究院,广州510080

出　　处：《南方电网技术》2015年第3期81-86,共6页Southern Power System Technology

基　　金：国家科技支撑计划资助项目(2013B AA02B02)~~

摘　　要：分析了在广泛应用相量测量单元(phasor measurement unit,PMU)和广域测量系统(wide area measurement system,WAM S)的情况下,电力系统的受扰轨迹规律,研究了基于WAM S的暂态稳定判别技术,分析了状态量门槛值判别方法、基于相平面轨迹凹凸性判别方法、基于单机能量函数判别方法及基于实测轨迹的扩展等面积准则(extended equal area criteria,EEAC)判别方法等的原理及特点。以2012年南方电网丰大计算数据为基础,以实际系统为研究平台,通过仿真分析验证,从准确性、快速性及对测量的要求等方面,对比分析了暂态失稳判据的优缺点及适用性,为工程化应用提供了重要参考。With consideration of the wide application of phasor measurement unit （ PMU ） and wide area measurement system （ WAMS） in power system, the disturbed track pattern of the power system is analyzed. By studying the WAMS based transient stabil-ity detection technology, the principles and characteristics of several detection methods are studied including status threshold value de-tection, concave and convex trajectory of phase detection, generator energy function detection, and measured trajectory based extended equal area criteria （ EEAC） detection. Based on a practical system with actual 2012 CSG heavy load mode data, simulation analysis is carried out on accuracy, speediness and measurement requirements of these detection methods, the merits and faults and applicability of these detection methods are compared to provide reference for engineering application.

关 键 词：暂态稳定 广域测量系统(WAMS) 轨迹 判据 

分 类 号：TM712[电气工程—电力系统及自动化]