电力系统保护与控制Issue(12)：36-40,5.
基于局部曲线拟合的电压失稳预防控制算法
Preventive control method to avoid voltage instability based on local curve fitting
摘要
Abstract
In order to obtain the preventive control scheme of voltage stability under unstable contingency, a preventive control method to avoid voltage instability based on local curve fitting is presented. Based on the study of characteristics of voltage stability saddle node bifurcation point, a method to calculate the load margin sensitivity without the left vector is proposed based on local curve fitting equation. These sensitivity information of loading margin with respect to control parameters are used to establish a linear programming model for preventive control, and then the control scheme to avoid voltage instability is given. Tests with IEEE-57 bus system indicate that the sensitivity is calculated accurately and the operating point is pulled back to voltage stability security region effectively.关键词
失稳故障/鞍结分岔/局部曲线拟合/灵敏度/预防控制Key words
unstable contingency/saddle node bifurcation/local curve fitting/sensitivity/preventive control分类
信息技术与安全科学引用本文复制引用
..基于局部曲线拟合的电压失稳预防控制算法[J].电力系统保护与控制,2013,(12):36-40,5.基金项目
湖北省科技厅项目（B2013168）；三峡大学启动基金 （）
