The invention relates to and is suitable for a rail backflow power supply system adopted by a direct-current power supply subway train, and provides a method for reducing missed current generated by subway running rail power supply backflow, a connecting branch formed by a parallel inductor, a super capacitor, an IGBT switch, a contactor and the like is adopted, and through intelligently controlling the conduction and flowing direction of current, the backflow harmonic wave component is effectively filtered, so that the leakage of the miscurrent harmonic wave component generated by the harmonic wave brought by the inverter switching circuit of the train to the outside of the running track can be effectively reduced, and the damage of electrochemical corrosion to other facilities and equipment is prevented.
本发明涉及并适用于直流供电的地铁列车采用的轨道回流的供电系统,发明中的方案提供减少地铁走行轨供电回流产生迷流的方法,采用并联电感、超级电容、IGBT开关、接触器等形成的连接支路,并通过智能控制电流的导通及流动方向,对回流的谐波成份进行有效的滤波,可有效减少列车的逆变器开关电路带来的谐波产生的迷流谐波成份向走行轨道自身之外的泄漏,防止发生电化学腐蚀危害其他设施设备。
Method for reducing missed current generated by subway running rail power supply backflow
一种减少地铁走行轨供电回流产生迷流的方法
2022-01-11
Patent
Electronic Resource
Chinese
IPC: | B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
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