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针对高速电气化铁路牵引供电系统由于不平衡负荷和整流引起的电网较大负序和谐波电流的电能质量问题,提出一种基于铁路功率调节器(railway static power conditioner,RPC)的新型电能质量补偿系统,详细介绍和分析了该新型补偿装置的拓扑结构和负序补偿原理,并对该新型结构的主电路参数设计方法进行讨论。最后根据高速铁路的实际运行情况,运用文中的参数设计方法设计参数,搭建仿真模型。仿真结果证明了新型电能质量补偿装置补偿原理及其参数设计方法的正确性。
Aiming to the power quality problems of high-speed electrified railway traction power supply system due to unbalanced load and rectification caused by large negative sequence and harmonic current, a new type of power quality compensation based on railway static power conditioner (RPC) System, introduces in detail and analyzes the topology and the negative sequence compensation principle of the new compensation device, and discusses the design method of the main circuit parameters of the new structure. Finally, according to the actual operation of high-speed railway, using the parameter design method in the article design parameters, set up the simulation model. The simulation results prove the correctness of the compensation principle of the new type of power quality compensation device and its parameter design method.