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修正的暂态能量函数及其在电力系统稳定性分析中的应用
引用本文:房大中,张尧,宋文南,钟德成.修正的暂态能量函数及其在电力系统稳定性分析中的应用[J].中国电机工程学报,1998,18(3):200-203,224.
作者姓名:房大中  张尧  宋文南  钟德成
作者单位:[1]天津大学 [2]香港理工大学
摘    要:针对电力系统稳定性分析中混合算法的缺点,本文推导了修正的暂态能量函数,并提出用其代替暂态能量函数的改进混合算法。仿真分析结果说明了由改进混合算法获得的稳定性裕度曲线更便于进行稳定性极限参数和临界故障切除时间分析。文章最后通过比较在39节点10发电机电网上获得的两种不同的能量函数能量裕度曲线说明了本文对混合算法的改进。

关 键 词:电力系统  暂态稳定  暂态能量函数  稳定性分析

Corrected Transient Energy Function and Its Application to Power System Transient Stability Assessment
Fang Dazhong Zhang Yao Song Wennang.Corrected Transient Energy Function and Its Application to Power System Transient Stability Assessment[J].Proceedings of the CSEE,1998,18(3):200-203,224.
Authors:Fang Dazhong Zhang Yao Song Wennang
Affiliation:Fang Dazhong Zhang Yao Song Wennang (Tianjin University Tianjian 300072 China ) Chung T. S. (The Hong Kong Polytechnic University)
Abstract:Corrected transient energy function ( CTEF ) , the sum of corrected kinetic and corrected potential energy func- tion , is proposed in this paper for improvitng the efficiencies of hybrid method in transient stability analysis. The main charac- teristic is that the CTEF is conservative along trajectories of a post fault system. The CTEF is derived from the motion equa- tion between the inertia centre of the critical machine group and the inertia centre of the rest system. Simulation results on the 1 0- machine New England test power system showed that the transient energy margin curves obtained from the CTEF are more suitable for estimating stability limit parameter than the ones from the traditional energy function.
Keywords:transient stability transient energy function  
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