The invention provides a three-phase energy storage system based on an out-phase traction substation, which is characterized in that a primary side three-phase terminal of a three-phase transformer is respectively connected with a first feeder line, a second feeder line and a rail ground of the out-phase traction substation, and a secondary side three-phase terminal of the three-phase transformer is respectively connected with a three-phase alternating current terminal of a three-phase converter; the direct current end of the three-phase converter is connected with the energy storage equipment; the input end of the coordination controller is connected with the measuring ends of a current transformer and a voltage transformer at the out-phase traction substation, the output end of the coordination controller is connected with the control ends of the three-phase converter and the energy storage equipment, and the coordination controller controls the energy storage equipment to charge and discharge according to detected current information and voltage information. And/or controlling the three-phase converter to perform negative sequence compensation. The electric energy quality problems of negative sequence, harmonic current and the like caused by returning regenerative braking energy to a power grid can be avoided, power taking of the power grid can be reduced, the capacity of a traction transformer is reduced, the regenerative braking energy of a locomotive is fully utilized, and cost is saved.

    本发明提供一种基于异相牵引变电所的三相储能系统,其中,三相变压器的原边三相端子分别连接异相牵引变电所的第一馈线、第二馈线和轨地,三相变压器的次边三相端子分别与三相变流器的三相交流端子连接,三相变流器的直流端与储能设备连接;协调控制器的输入端连接异相牵引变电所处的电流互感器和电压互感器的测量端,协调控制器的输出端连接三相变流器和储能设备的控制端,协调控制器根据检测到的电流信息和电压信息控制储能设备进行充放电,和/或控制三相变流器进行负序补偿。本发明可以避免再生制动能量返送电网带来的负序、谐波电流等电能质量问题,还可以减少电网取电、降低牵引变压器容量,充分利用机车的再生制动能,节约成本。


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    Titel :

    Three-phase energy storage system based on out-phase traction substation and control method


    Weitere Titelangaben:

    一种基于异相牵引变电所的三相储能系统及控制方法


    Beteiligte:
    LI QUNZHAN (Autor:in) / WU BO (Autor:in) / YANG ZHILING (Autor:in) / LI SHUQIAN (Autor:in)

    Erscheinungsdatum :

    2023-05-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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




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