变电站电压与无功实时控制策略的现状与改进方向

Real-Time Control Strategy of Voltage and Reactive Power of Substation Presently and Its Improve Direction

目前国内配电变电站中电压与无功控制的主要手段是调节有载调压变压器的分接头和并联补偿电容器的投入量,以保证电压在规定的范围内,并尽量减少电网中无功的传输。本文首先分析了变电站电压无功控制的基本原理,然后全面地阐述了目前国内外变电站电压与无功控制策略的研究状况,分析了各种控制策略所存在的问题,最后提出了变电站电压无功控制的改进方向。

Now the main means of the voltage-reactive power control of substation are adjusting the taps of load-tap-changing transformer or the reasonable capacity of parallel compensating capacitors to ensure the voltage in the reference domain, and farthest decrease the transmission of the reactive power in the network. Firstly, the principle of voltage-reactive power control of substation is analyzed, and then the development of the control strategy of voltage-reactive power home and abroad is reviewed, the problem of each control strategy is analyzed. Finally, the research direction of the voltage and reactive power control is proposed.