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提出了一种无功功率优化方法。该方法使用摄动法求取灵敏度矩阵，其控制变量取发电机电压、变压器分接头变比，并联电容器容量，状态变量取发电机无功出力及负荷点电压，建立以网损最小为目标函数的无功优化数学模型，经过IEEE—6节点实验系统和某市110kV实际电网的分析计算，取得了满意的结果。
A reactive power optimization method is proposed. The method uses the perturbation method to obtain the sensitivity matrix. The control variables take generator voltage, transformer tap ratio, shunt capacitor capacity, state variable as generator reactive power output and load point voltage. The optimization model of reactive power has been satisfactorily obtained through the IEEE-6 node experimental system and the actual 110kV grid in a city.