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随着电网的日益复杂,电压无功控制是电网运行的重要问题。220k V和110k V电压等级的变电站已经普遍安装了变电站电压无功控制装置(VQC)和地区电压无功控制系统(AVC),但500k V的电压无功调节反而还是人工调节的,不能适应现代电网的要求。提出了适应500k V变电站的无功电压控制7区图,实现500k V变电站电压无功自动控制的策略,既提高了电压无功控制水平,又大大减少了人工,取得了很好的效果,同时为500k V变电站无人或少人值班打下了很好的基础。
With the increasing complexity of the power grid, voltage and reactive power control is an important issue for grid operation. Substation Voltage Reactive Power Control (VQC) and Regional Voltage Reactive Power Control (AVC) have been generally installed in 220k V and 110k V substations, but the 500kV voltage and reactive power regulation is instead manually adjusted and can not be adapted to Hyundai Grid requirements. The strategy of adaptively controlling Zone 7 of reactive power voltage control in 500kV substation is proposed to realize voltage and reactive power automatic control of 500kV substation, which not only improves the level of voltage and reactive power control but also greatly reduces labor and achieves good results. Meanwhile, For 500k V substation no one or less people laid a good foundation.