浅析供配电系统三相不平衡的无功补偿

Analysis of Reactive Power Compensation of Three-Phase Unbalance in Power Supply and Distribution System

单相电器在三相供电中数量多,引起三相不平衡的同时还导致无功补偿难度加大。论文分析了三相不平衡的无功补偿问题,采用先三相共同补偿,再单相独立补偿的混合补偿方法,避免在三相共同补偿时出现过补偿和欠补偿情况。保证了无功补偿的高效性、可靠性、经济性,取得较好效果。

In the three-phase power supply, the number of single-phase power supply is more and more serious, which leads to the unbalance of three-phase power supply and increases the difficulties of reactive power compensation. In this paper, the problem of unbalanced three-phase reactive power compensation is analyzed, which is based on the method of three-phase compensation and single-phase independent compensation. It can avoid the overcompensation and under compensated phenomenon in the process of three-phase reactive power compensation, ensure the high efficiency, reliability and economy of reactive power compensation.