The invention relates to a rail transit power supply system which at least comprises an external power supply, converter stations and a traction network, the external power supply can be a high-voltage power grid or/and a wind power generation or/and solar power generation island power supply, the external power supply is connected with the traction network through the converter station via a feeder line, an energy storage power station is connected to the traction network, and traction power of a train is obtained from the traction network; a looped network power supply network is not arranged between the converter stations, whole-line traction load power supply is only provided by the traction network, and power illumination load power supply is also provided by the traction network through a converter or an energy storage power station in a place without external power supply; an uplink traction network and a downlink traction network can independently form a double-loop power supply and can also form a parallel circuit. According to the power supply system provided by the invention, a medium-voltage looped network structure layer is canceled, the installed capacity of a real-time power supply mode is reduced, and a vehicle-mounted energy storage battery is changed into a ground energy storage power station, so that the construction and operation cost is reduced, the operation reliability is improved, and wind energy, photovoltaic energy and other new energy power supplies are compatible.

    本发明涉及一种轨道交通供电系统,至少包括外部电源、变流所和牵引网,外部电源可以是高压电网或和风能发电或和太阳能发电等孤岛电源,外部电源经变流所通过馈线与牵引网相连,在牵引网上并入储能电站,列车的牵引电力从牵引网获得;变流所之间不设环网供电网络,全线牵引负荷供电仅由牵引网提供,动力照明负荷供电在没有外部电源引入的地方也由牵引网经变流器或经储能电站提供;上下行牵引网既可以独立组成双回路电源,亦可以组成并联电路。本发明提出的供电系统,取消中压环网结构层,降低实时供电模式装机容量,以及将车载储能电池变为地面储能电站,从而实现降低建设、运营成本,提高运营可靠性,兼容风能、光伏能等新能源电源。


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    Titel :

    Rail transit power supply system based on traction network


    Weitere Titelangaben:

    一种基于牵引网的轨道交通供电系统


    Beteiligte:
    ZENG JIAN (Autor:in)

    Erscheinungsdatum :

    2020-10-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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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