计及STATCOM的动态电压稳定概率评估  

Dynamic Voltage Stability Probabilistic Assessment Considering STATCOM

作　　者：陈闽江[1] 陈陈[1] 吴蓓 周孝法[1] 曹国云[1] 

机构地区：[1]上海交通大学电气工程系,上海200240 [2]福州电业局,福建350009

出　　处：《高电压技术》2010年第4期1032-1037,共6页High Voltage Engineering

基　　金：国家自然科学基金(50307007)~~

摘　　要：系统随机参数的变化对系统动态性能有着重要的影响,为分析系统中随机参数对动态仿真的影响,提出了一种基于两点估计法的动态电压稳定性概率评估方法。该方法引入两点估计法并结合准稳态分析过程来评价系统动态电压稳定性,考虑到STATCOM在电压稳定中的重要作用,运用所提出的方法对计及STATCOM的系统进行研究,并统计系统节点电压在随机故障下的电压跌落概率指标,快速得到所求变量的近似分布。仿真计算表明该方法计算速度快、精度高,对系统的分析规划具有一定指导作用。To analyze the effect of stochastic parameters in power system on dynamic simulation,a novel method based on the two-point estimation method （TPEM） was presented for dynamic voltage stability analysis. The method evaluated the dynamic voltage stability through the TPEM and quasi-steady state analysis. Considering the compensation effect of STATCOM on voltage stability,the proposed method was used to study the system with STATCOM,and the indexes of bus voltage in stochastic faults were calculated. Numerical analysis verifies the accuracy of this algorithm and fast calculation,which can provide the guidance to the power system planning and design.

关 键 词：动态电压稳定 两点估计 概率评估 STATCOM 随机故障 系统规划 

分 类 号：TM712[电气工程—电力系统及自动化]