摘要
提出了一种快速识别初始运行点附近失稳模态的方法,该方法基于大量计算观察到的初始运行点附近不同运行点注入下模型的可达性格纳姆矩阵元素近乎不变的性质,将基于K-中心点算法的同调识别和初加速度法相结合,快速识别初始运行点附近的失稳模态,为实用动态安全域(PDSR)直接法提供了临界点搜索建议,改善了PDSR法。该方法的有效性在New England 10机39节点系统得到了验证。
A new method of identifying instability modes around normal operating point is proposed. Based on the approximate invariance of Reachability Grammiam on injections of different operating points around normal operating point, the acceleration method combining with the coherency identification method can identify instability modes quickly at the normal operating point by use of the K-medoids algorithm. With the result of instability modes, the searching skill for critical points is proposed and the practical dynamic security region (PDSR) has also been improved. This method has been evaluated on the 10-generator, 39-bus New England Test System.
出处
《电力系统自动化》
EI
CSCD
北大核心
2004年第11期28-32,共5页
Automation of Electric Power Systems
基金
国家重点基础研究专项经费资助项目(G1998020307)
关键词
实用动态安全域
可达性格纳姆矩阵
K-中心点算法
同调识别
失稳模态
practical dynamic security region (PDSR)
reachability Grammiam
K-medoids algorithm
coherency identification
instability mode
