基于受扰轨迹的紧急控制新方法  

A NOVEL APPROACH FOR TRANSIENT STABILITY EMERGENCY CONTROL BASED ON PERTURBED TRAJECTORY

作　　者：彭疆南[1] 孙元章[1] 程林[1] 

机构地区：[1]清华大学电机系,北京市100084

出　　处：《电力系统自动化》2002年第21期17-22,共6页Automation of Electric Power Systems

基　　金：国家重点基础研究专项经费资助项目 (G19980 2 0 315 );国家杰出青年科学基金资助项目 (5 982 5 10 4)

摘　　要：建立了含控制项的电力系统紧急控制模型 ,基于系统实际受扰轨迹用 EEAC方法对含控制项的多机系统降阶等值 ,并应用广义 Hamilton理论能量控制方法进行等值受控电力系统稳定分析。初步探求受控系统稳定控制规律后 ,提出一种基于实时量测数据的闭环在线实时暂态稳定紧急控制决策方案 ,并构造了能有效反映控制安全经济性能的综合指标用于控制量合理分配。算例表明该算法可行、有效 。This paper proposed a new scheme of power system emergency control based on actual system trajectory via real-time wide area measurement system. An emergency control model of power system is established and EEAC is used to decompose and simplify the whole large system into low order small system based on practical physical dynamics. Then a novel TEF is constructed from the equivalent simplified system using general Hamilton system theory to fast assess transient stability and quantitatively determine emergency control strategy. Also an integrated security and economic index is constructed to decide which generators to be shed. The technique is tested by test systems and the results indicate its feasibility and effectiveness.

关 键 词：受扰轨迹 紧急控制 电力系统 暂态稳定分析 HAMILTON系统 在线实时决策 EEAC 电网 

分 类 号：TM712[电气工程—电力系统及自动化]