本文研究了两种适用于牵引供电系统无功谐波电流的检测方法,即基于函数正交特性和基于有功电流分离方法的无功谐波电流检测方法.给出了相应的检测原理及系统框图,参考已研发的BDC-5型牵引变电站电能质量监测系统测试的变电所电能质量数据构造负载进行建模仿真,这两种方法具有较高精度和较好的实时性,在电气化铁道供电系统中推荐使用.%In order to detect the reactive power current and harmonic current in electrified railway systems, two detecting methods are proposed in this paper. There are methods based on function orthogonal characteristic and active current separate method. The corresponding detection systemsare is developed, and simulations based on power quality data of traction which detected by BDC-5 traction bstation power quality detecting system are performed which is verify the feasibility of the methods proposed. With higher precision and the real-time performance, the two methods are recommended in electrified railway systems.
展开▼
