Transient Stability Analysis Based on the Sensitivity of Trajectory Length  

作　　者：JIANG Ningqiang HUANG Chao CAI Weifeng 

机构地区：[1]School of Automation, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

出　　处：《Wuhan University Journal of Natural Sciences》2009年第2期169-173,共5页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foundation of China (60474018)

摘　　要：The length of the trajectory is proposed as a function for the employment of the sensitivity analysis method in power system transient stability analysis. Its sensitivity to the faultclearing time is about 10 times higher than that of the energy function or the distance function. The integrating time is reduced to less than 3 s while the accuracy is maintained. It can also be used to provide parameter limits. Simulations on the WSCC 4 machine system and the New England system verify the effectiveness of sensitivity of trajectory length in transient stability analysis.The length of the trajectory is proposed as a function for the employment of the sensitivity analysis method in power system transient stability analysis. Its sensitivity to the faultclearing time is about 10 times higher than that of the energy function or the distance function. The integrating time is reduced to less than 3 s while the accuracy is maintained. It can also be used to provide parameter limits. Simulations on the WSCC 4 machine system and the New England system verify the effectiveness of sensitivity of trajectory length in transient stability analysis.

关 键 词：power system transient stability sensitivity analysis 

分 类 号：TM712[电气工程—电力系统及自动化] TQ533[化学工程—煤化学工程]