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随着广珠铁路和广珠轻轨铁路江门支线建设的进展,电气化铁路和牵引供电等新的用户就进入江门供电局的服务范围,单相整流负载的电气化铁路对电网的影响具有其特殊性。本文从理论分析、仿真实验及工程经验三个方面探讨了电气化铁路产生的谐波、无功功率和负序电流,并阐述了其将对江门电网的影响,提出采用单相注入式混合电力滤波器与静止无功补偿器的复合补偿方案,以提高电网的稳定性和安全性。
With the progress of the construction of Jiangmen Branch of Guangzhu Railway and Guangzhu Light Rail Transit Line, new users such as electrified railway and traction power supply have entered the service range of Jiangmen Power Supply Bureau. The influence of electrified railway with single-phase rectified load on power grid has its own particularity. This paper discusses the harmonic, reactive power and negative sequence current generated by electrified railway from three aspects: theoretical analysis, simulation experiment and engineering experience. It also expounds the influence of the harmonic, reactive power and negative sequence current on Jiangmen Power Grid. The paper proposes single-phase injection hybrid power filter Complex compensation with static var compensator program to improve grid stability and safety.