基于节点导纳矩阵形式的在线电压稳定分析.pdf

第30 卷 第22 期 中 国 电 机 工 程 学 报 Vol.30 No.22 Aug.5, 2010 2010 年8 月5 日 Proceedings of the CSEE ©2010 Chin.Soc.for Elec.Eng. 51 0258-8013 (2010) 22-0051-06 TM 71 A 470 40 文章编号： 中图分类号： 文献标志码： 学科分类号： ⋅ 基于节点导纳矩阵形式的在线电压稳定分析 艾琳，姜彤，杨以涵 (华北电力大学电气与电子工程学院，北京市 昌平区 102206) On-line Voltage Stability Analysis Based on Bus Admittance Matrix Form AI Lin, JIANG Tong, YANG Yi-han (School of Electrical Electronic Engineering, North China Electric Power University, Changping District, Beijing 102206, China) ABSTRACT: A new method of on-line voltage stability analysis 0 引言 based on bus admittance matrix form was proposed, and 电压稳定分析方法可分为基于潮流方程的静 monotone mode of voltage instability resulted by divergence of 态分析方法及基于状态方程的动态分析方法[1]这 2 voltage iteration was deduced, which coincides with the 类。其中，静态分析方法已取得了比较深入的理论 monotone instability of actual voltage collapse accidents in 认识，并且建立了相应的评价指标及计算分析方 power system. The local synchronous phase-angle measurements are used in this method to calculate the sensitivity equivalent 法，因此得到了广泛应用。 admittance, which is used to revise node admittance matrix. Thus 静态分析方法一般以系统稳态潮流方程或扩 the voltage stability of each load bus can be identified only by 展潮流方程为基础进行电压稳定分析[2-3] 。围绕非线 diagonal data of modified admittance matrix. As the features of 性潮流方程的不同性质，逐渐发展出静态电压稳定 simple principle and fast speed, the proposed approach is suit for [4]