公开(公告)号：EP3012941A4

公开(公告)日：2017-06-28

申请号：EP14844015

申请日：2014-06-09

申请人： CRRC QINGDAO SIFANG ROLLING STOCK RES INST CO LTD

发明人： YANG DONGJUN ,  LI BO ,  WEI JUNLEI ,  ZHANG BO ,  LI ZHAOPING ,  ZHANG XIAOMING ,  XIE ZHENG ,  ZHOU YANG ,  ZHANG LIJUN ,  ZHANG YANFANG

IPC分类号： H02J7/34 ,  H02M7/493

CPC分类号： B60L11/02 ,  H02J3/26 ,  H02M5/458 ,  H02M7/44 ,  H02M7/493 ,  H02M2001/0009 ,  Y02E40/50

摘要： A system and a method for parallel power supply control for auxiliary converters of a motor train unit in the presence of interconnecting lines. The system comprises multiple three-phase inverter modules. The multiple three-phase inverter modules are in parallel connection with each other. Any two-phase circuit of a three-phase inverter module is separately in parallel connection with a corresponding two-phase circuit of a three-phase inverter module adjacent to the three-phase inverter module by using a connecting line module. The connecting line module is connected to a control system. The three-phase inverter modules are also connected to the control system. The three-phase lines of the three-phase inverter modules are all provided with switches. Less interconnecting lines are used, and any two phases of the three-phase inverter modules are separately in parallel connection, and therefore, stable power supply is achieved by balancing currents of any two phases of the three-phase circuits, and the system reliability is improved.

摘要翻译： 一种用于在存在相互连接线路的情况下用于动车组单元的辅助变流器的并联供电控制的系统和方法。 该系统包括多个三相逆变器模块。 多个三相逆变器模块彼此并联连接。 三相逆变器模块的任何两相电路通过使用连接线模块分别与三相逆变器模块相邻的三相逆变器模块的对应两相电路并联连接。 连接线模块连接到控制系统。 三相逆变器模块也连接到控制系统。 三相逆变器模块的三相线都配有开关。 使用较少的互连线，并且三相逆变器模块的任何两相分别并联连接，并且因此通过平衡三相电路的任何两相的电流来实现稳定的电力供应，并且系统可靠性 改进。