A novel optimization method of transient stability emergency control based on practical dynamic security region (PDSR) of power systems

作     者：YU Yixin LIU Hui ZENG Yuan 

作者机构：School of Electrical Engineering and Automation Tianjin University Tianjin 300072 China School of Electrical Engineering and Automation Tianjin University Tianjin 300072 China School of Electrical Engineering and Automation Tianjin University Tianjin 300072 China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2004年第47卷第3期

页      面：376-384页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 

基　　金：国家重点基础研究发展计划(973计划)(1998020307) 高等学校博士学科点专项科研项目(20030056008) 

主　　题：emergency control, transient stability, EPDSR, critical hyper-plane boundary, experiential law 

摘      要：This paper proposes a novel optimization method of transient stability emergency control based on a new concept of the so-called extended practical dynamic security region (EPDSR) defined in this paper and four experiential laws about the EPDSRs found from a number of studies in real power systems. In this method, the effect of a control action is represented by the displacement of EPDSRs critical hyper-plane boundary in the direction of its outer normal vector. If an unstable contingency occurs, appropriate emergency control actions are triggered so that the enlarged EPDSR can cover the current operating point. Based on these ideas, a mathematics model of emergency control strategy is developed for minimizing its total cost and guaranteeing power system transient stability. The simulation results on the 10-generator, 39-bus New-England Test System as well as other real power systems have shown the validity of this method.