电力系统自动化2009，Vol.33Issue(14)：17-21,5.
基于暂态电压稳定指标的动态无功优化配置方法
Optimal Allocation Method of Dynamic Var Compensation Based on Transient Voltage Stability Index
摘要
Abstract
The available allocation methods of dynamic Var compensation almost take the ensuring static voltage stability as the objective, while fast responsibility makes dynamic Var compensation suitable for maintain transient voltage stability. In this paper, the mechanism of transient voltage collapse and improving transient voltage stability by dynamic Var compensation are analyzed. It is concluded that the critical fault clearing time can be used as an index to evaluate the transient voltage stability,and the allocation of dynamic Var compensation could extend the critical fault clearing time. According to these conclusions, a method for optimal allocation of dynamic Var compensation based on critical fault clearing time is proposed. By comparing the changes of critical clearing time of all critical contingencies before and after dynamic Var compensation placed, an index is drawn to be a criterion of optimal allocation of dynamic Var compensation, and the optimal allocation scheme is obtained. The method is validated through simulations on IEEE 39-bus power system.关键词
动态无功补偿/暂态电压稳定/极限切除时间/静止同步补偿器Key words
dynamic Var compensation/ transient voltage stability/ critical fault clearing time/ static synchronous compensation (STATCOM)分类
信息技术与安全科学引用本文复制引用
袁志昌,刘文华,宋强..基于暂态电压稳定指标的动态无功优化配置方法[J].电力系统自动化,2009,33(14):17-21,5.基金项目
国家重点基础研究发展计划(973计划)资助项目(2004CB217907). （973计划）
