含STATCOM的风电系统鞍结分岔边界追踪及其非线性解析表达  

Tracking and nonlinear analytical expression of saddle node bifurcation boundary in wind power system with STATCOM

作　　者：马幼捷[1] 刘进华[1] 周雪松[1] 刘思佳[1] 李季[1] 

机构地区：[1]天津理工大学天津市复杂系统控制理论及应用重点实验室．天津300384

出　　处：《电力自动化设备》2012年第3期90-93,98,共5页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(50877053);天津市自然科学基金资助项目(09JCYBJC07100)~~

摘　　要：借助常规电力系统计算二维参数分岔边界的方法和思路,以风电注入有功功率Pin、STATCOM的参数KMdc为控制参数,追踪得到风电系统节点电压二维鞍结分岔边界,通过对分岔边界的分析,得出风电场注入有功和STATCOM参数共同作用下影响风电系统电压稳定性的规律;接着以二次多项式作为风电系统参数空间中鞍结分岔边界的近似非线性解析表达式。通过算例仿真验证了该方法逼近真实边界的高精度及其有效性。Referred to the conventional calculation method of two-dimensional parameter bifurcation boundary for electric power system,the two-dimensional saddle-node bifurcation boundary of wind power system node voltage is calculated by taking the injecting active power Pin of wind farm and the parameter KMoc of STATCOM as the bifurcation control parameters,which is then analyzed to obtain the voltage stability laws of wind power system affected by both injecting active power and STATCOM parameter. The quadratic polynomial is taken as the approximate nonlinear analytical expression of saddle node bifurcation boundaries in the parameter space of wind power system. Simulative results of an example show the precision and effectiveness of the proposed method in approaching the true border.

关 键 词：STATCOM 风电 分岔 鞍结分岔边界 电压稳定性 非线性解析 

分 类 号：TM614[电气工程—电力系统及自动化] TM712