基于对称分量突变量选相元件分析

Phase Selector Analysis Based on Symmetrical Component Variation

分析对称分量突变量原理,得出求解故障距离的通用公式,在进行有效选相前不必进行故障分类;通用公式求故障距离虽然存在负误差,但对启动元件正确动作不受影响;提出了根据序分量大小判别故障相原理,仿真表明该方法的有效性与可靠性均能满足要求..

Based on analysis of symmetrical components variation principle,the general formula was acquired to solve the fault distance,so that the effective selection can be gained without fault classification phase in front;general formula for the fault distance,despite negative error,was not affected by the correct action of starting element;the principle of judging the fault phase based on the size of sequence component was put forward,the simulation results show that the effectiveness and reliability of the method can meet the requirements.