论文部分内容阅读
本文对地铁牵引供电系统的主要负荷无功特性进行了分析,建立了等值电路模型,给出了一个合理的补偿容量计算依据及补偿方案。以国内某地铁工程为例,对该装置的无功输出容量、动态无功跟随能力以及谐波补偿效果进行了仿真验证。现场实测波形和主要指标结果表明,该方案补偿效果显著,提高了系统的功率因数,且能很好地抑制电压波动,保证了地铁供电系统的高效可靠运行。
In this paper, the main load reactive characteristics of the traction power supply system in subway are analyzed, and the equivalent circuit model is established, and a reasonable compensation capacity calculation basis and compensation scheme are given. Taking a subway project in China as an example, the reactive power output capacity, dynamic reactive power followability and harmonic compensation effect of the device are simulated. The field measured waveforms and the main index results show that the compensation effect of the scheme is remarkable, the system power factor is improved, the voltage fluctuation is well suppressed, and the efficient and reliable operation of the subway power supply system is ensured.