电压无功自动控制装置定值的修正与改进

Correction and Improvement of the Setting Value of Automatic Reactive Voltage Control

由于各变电站负荷和设备的差异,电压无功自动控制(VQC)装置策略和定值的设置难以通用和精确,从而影响装置的使用效果。以闵行供电分公司为例,介绍了对VQC装置定值进行修正和改进的方法,使其达到逼近最优、避免区域振荡以及设备不频繁动作的要求,实现变电站电压合格与无功就地补偿的目标。

Because th＇ere are difference in load and equipments of all substations, the strategy and Setting Value of automatic reactive voltage control （VQC） device can not be general and accurate. It will affect the device＇s performance. Taking Minhang Power Supply Company as example, the setting value on VQC auto-controlinstallation should be corrected and improved in order to satisfy the system requirements of approaching the best performance, avoiding vibration in a certain area and no frequent actions. It can qualify the grid voltage and realize the local reactive power balancing.