支路合成法联络线族有功灵敏度计算

ACTIVE POWER SENSITIVITY CALCULATION OF INTERCONNECTION LINE WITH BRANCH SYNTHESIS METHOD

首先从电力系统生产实践的角度阐述了联络线族的概念 ,并且提出支路合成法用于联络线族潮流和灵敏度的计算。与摄动法灵敏度对比 ,支路合成法具有快速准确的优点。最后考察平衡机的选择对联络线族灵敏度的影响 ,说明灵敏度的使用要注意与运行方式相符。支路合成法已经成功应用于辽宁电力市场安全约束调度程序 ,可以对多个联络线族的潮流进行实时监视和调整 ,取得令人满意的效果。

This paper presents concept of Interconnection Line Group (ILG) from practice.Th en,a Branch Synthesis Method (BSM) is put forward to calculate power flow and ac tive power sensitivity.Comparing with perturbation method,BSM is more quickly an d accurate.The reference node of the net is very important to the sensitivity re sult.This paper studies the influence of different reference node and concludes that sensitivity calculation must comply with its real operation mode.BSM has be en applied into a security constrained dispatching program of Liaoning electrici ty market.It's very successful on supervising and regulating the power flow of I LG.