基于智能优化算法的变电站电压无功控制策略研究

Research on Voltage Reactive Power Control Strategy of Substation Based on Intelligent Optimization Algorithm

变电站自动电压控制(AVC)系统可通过优化无功资源分配有效改善变电站电压质量,减少系统有功损耗。在分析现行九区图控制策略的基础上,考虑到现行策略容易发生电容器组投切频繁的问题,提出一种基于引力搜索算法的变电站电压无功优化控制方法。该方法通过潮流优化计算,能得出有载调压变压器分接头档位和电容器组投入个数的最佳配置,达到减少设备动作次数的目的,有效延长设备使用寿命。

Automatic voltage control(AVC)system can effectively improve the voltage quality of the substation and reduce the active power loss of the system by optimizing the distribution of reactive power.Based on the analysis of the current nine-block diagram control strategy and considering that the current strategy is prone to frequent switching of capacitor banks,a novel method of substation voltage reactive power optimization control based on gravity search algorithm was proposed.Through the power flow optimization calculation,this method could obtain the best configuration of tap position of on-load regulating transformer and input number of capacitor bank,which could achieve the purpose of reducing the number of equipment actions and effectively extend the service life of the equipment.