The invention relates to a double-current train alternating current and direct current automatic switching control method which comprises the following steps: before a train enters an alternating current and direct current transition area, controlling a traction auxiliary conversion system to stop, and crossing the transition area by virtue of train inertia; in the transition area, the traction auxiliary converter system is restarted, and the system is added again; in the switching process, starting and stopping control of the auxiliary converter and the vehicle-mounted fan is carried out according to a positioning signal of the ground beacon; comprising the steps that when beacon signals are received, mileage counting and shutdown preparation are carried out, shutdown sequences of an auxiliary converter and a draught fan are executed, and alternating current and direct current conversion state confirmation is completed; and in the direct-current area, closing the high-voltage loop, starting the traction system, sequentially starting each auxiliary power supply, and controlling the fan to start. The technical problem that a safe and reasonable control strategy of the traction auxiliary converter system is needed in the alternating current and direct current switching process of the double-current system vehicle is solved.

    本发明涉及一种双流制列车交直流自动切换控制方法,包括列车进入交直流过渡区之前,控制牵引辅助变流系统停机,并依靠列车惯性跨过过渡区;在过渡区后,牵引辅助变流系统重新启动,重新加入系统;在切换过程中,根据地面信标的定位信号,进行辅助变流器及车载风机的启停控制;包括在接收到信标信号时,进行里程计数,准备停机,并执行辅助变流器和风机的停机序列,完成交直流转换状态确认;在直流区,闭合高压回路并启动牵引系统,顺序启动各辅助电源,控制风机启动。本发明解决了双流制车辆在交直流切换过程中需要的牵引辅助变流系统安全合理的控制策略的技术问题。


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    Title :

    Alternating current and direct current automatic switching control method for double-current train


    Additional title:

    双流制列车交直流自动切换控制方法


    Contributors:
    YANG ZHIHAO (author) / ZHANG YUGUANG (author) / PAN JINGYU (author) / LU JINXIAO (author)

    Publication date :

    2024-08-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / B61C Lokomotiven , LOCOMOTIVES / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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