高速铁路牵引供电系统电能质量管理策略

Yongbin Shi, Teng Li
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引用次数: 2

摘要

受电气化铁路单相供电方式和机车负载特性的影响,牵引系统存在谐波量大、负序分量大等电能质量问题。为改善牵引系统电能质量,提出了一种基于铁路电力调节器和无源滤波器的电能质量管理方案。首先对传统电能质量管理装置和铁路电力调节器的拓扑结构进行了分析。然后,分析了铁路电力调节器的动态补偿原理,设计了一种改进的铁路电力调节器控制策略。最后,通过建立仿真,比较了传统电能质量管理装置和铁路电力调节器在电流谐波和三相负序方面的处理效果。仿真结果表明,基于铁路电源调节器的改进控制策略能较好地解决牵引供电系统的负序和谐波问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Power Quality Management Strategy for High-Speed Railway Traction Power Supply System
Affected by the single-phase power supply mode of electric railway and properties of the locomotive load, power quality problems such as high amount of harmonics and negative-sequence components exist in the traction system. To improve the power quality in the traction system, this paper proposed a power quality management scheme based on railway power conditioner and the passive filter. Firstly, topology of traditional power quality management device and railway power conditioner are analyzed. Then, dynamic compensation principle of railway power conditioner was analyzed and a improved control strategy of railway power conditioner was designed. Finally, through building a simulation, compare the treatment effect of traditional power quality management devices and railway power conditioner in terms of current harmonics and negative sequence on three-phase side. Simulation results show that improved control strategy based on railway power conditioner is better to solve negative sequence and harmonic issues in the traction power supply system.
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