摘要
构建了基于PSCAD/EMTDC仿真软件的供电系统的三相不平衡度测量系统,模拟仿真了不对称负载所产生的负序电流造成系统不平衡的典型工况。通过仿真分析了三种方法计算三相不平衡度的结果,并对基于离散化的三相不平衡度计算方法进行改进,分析了不对称负载对三相不平衡度的影响。
The paper build power supply system three-phase unbalance measurement systems based on PSCAD /EMTDC simulation software,simulating the system imbalance typical conditions which caused by asymmetric loading generated the negative sequence current. Using the simulation analyzed the result of three methods calculating three-phase imbalance degree,and the three-phase imbalance degree calculation method based on the discretization is improved,and analyzed the asymmetric load effects on three-phase imbalance degree.
出处
《电力与电工》
2013年第4期23-26,共4页
Electric Power and Electrical Engineering
