基于混合遗传算法的三相负荷不平衡无功就地补偿方法

A Hybrid Genetic Algorithm Based Local Reactive Power Compensation Method for Unbalanced Three-phase Load

由于电力系统中负荷的不均匀分配,导致配电网中发生三相负荷不平衡状况,严重影响供电质量,提出基于混合遗传算法的三相负荷不平衡无功就地补偿方法。检测三相负荷,获取电力系统中的三相电流和三相电压,计算三相负荷不平衡度,筛选出三相不平衡负荷,确定无功就地补偿容量,基于混合遗传算法建立无功就地补偿数学模型,实现三相负荷不平衡无功就地补偿。仿真实验结果表明,本文所提方法可以快速、准确地补偿电力系统无功电流以及三相负荷不平衡,验证了此方法的有效性。

Due to the uneven distribution of load in power system,three-phase load imbalance occurs in distribution network,which seriously affects the quality of power supply. A hybrid genetic algorithm based three-phase load imbalance reactive power compensation method is proposed. Detect the three-phase load,obtain the three-phase current and three-phase voltage in the power system,calculate the three-phase load imbalance,screen the threephase unbalanced load,determine the reactive power local compensation capacity,establish the reactive power local compensation mathematical model based on the hybrid genetic algorithm,and realize the three-phase load imbalance reactive power local compensation. The simulation results show that the proposed method can quickly and accurately compensate the reactive current and three-phase load imbalance of power system,and verify the effectiveness of this method.