The invention discloses a hybrid rail transit traction power supply system and a control method thereof. The traction power supply system comprises a conventional rectifier unit and a bidirectional converter unit which are connected in parallel, the conventional rectifier unit is electrically connected with a high-voltage power grid and a rail transit load end. The bidirectional converter unit comprises a second medium-voltage cabinet, a bidirectional transformer, a second diode rectifier, an inverter, a separation cabinet and a second direct-current switch cabinet. The second medium-voltage cabinet, the two-way transformer, the second diode rectifier and the second direct-current switch cabinet are sequentially arranged between the high-voltage power grid and the rail transit load, the second diode rectifier is further connected with one end of the inverter through the separation cabinet, and the other end of the inverter is connected with the two-way transformer. By adding the energy feedback winding on the basis of the conventional rectifier transformer, the structure of the traction power supply system is simplified, the use of a medium-voltage switch cabinet, a direct-current switch cabinet and a boosting transformer is reduced, the construction cost of traction power supply equipment is reduced, and the structural design of the system is simplified.

    本发明公开了一种混合轨道交通牵引供电系统及其控制方法,其中牵引供电系统包括:并联连接的常规整流机组和双向变流机组;常规整流机组分别与高压电网和轨道交通负载端电连接,双向变流机组包括:第二中压柜、双向变压器、第二二极管整流器、逆变器、隔开柜和第二直流开关柜;第二中压柜、双向变压器、第二二极管整流器和第二直流开关柜依次设置于高压电网和轨道交通负载之间,第二二极管整流器还通过隔开柜与逆变器的一端连接,逆变器的另一端与双向变压器连接。通过在常规整流变压器基础上增加能馈绕组的方式,简化了牵引供电系统的结构,减少了中压开关柜、直流开关柜、升压变压器的使用,降低了牵引供电设备的建设成本、简化系统结构设计。


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    Titel :

    Hybrid rail transit traction power supply system and control method thereof


    Weitere Titelangaben:

    一种混合轨道交通牵引供电系统及其控制方法


    Beteiligte:
    ZHENG YUEBIN (Autor:in) / WEN XIN (Autor:in) / LIU XIANJUN (Autor:in) / MENG XIANGJUN (Autor:in) / MEI GUIFANG (Autor:in) / MENG QIANG (Autor:in) / LI JIE (Autor:in) / XU WEI (Autor:in) / TIAN HAO (Autor:in) / HUANG HUI (Autor:in)

    Erscheinungsdatum :

    17.03.2023


    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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