摘要：变电站是电力系统中转换电压、接受和分配电能、控制电流走向和调整电压的电力设施。
Abstract: : the substation is in power system voltage conversion, accept and electric power distribution, control and adjustment to the current voltage power facilities.
在此基础上，再采用九区图方法调整配电网的无功电压，进行迭代，逐层进行无功优化直到问题收敛。
This paper presents the distributed solution based on nine-zone diagram method for reactive power optimization in regional system.
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