公开(公告)号：US20160359424A1

公开(公告)日：2016-12-08

申请号：US15174333

申请日：2016-06-06

Applicant: ABB Technology Ltd.

Inventor： Quyen Tran ,  Andreas Voegeli

IPC: H02M5/458 ,  H02H1/00 ,  H02H7/12 ,  H02M1/12 ,  H02H3/16

CPC classification number: H02M5/458 ,  H02H1/0092 ,  H02H3/162 ,  H02H7/1216 ,  H02H9/001 ,  H02M1/12 ,  H02M1/32 ,  H02M7/49 ,  H02M2001/0077 ,  H02P29/02

Abstract: A multi-phase electric drive includes a multi-phase power transformer, including a primary winding and a first number of secondary windings, said primary winding being electrically connectable to a source of multi-phase AC power; a first number of power units, each of said first number of power units having input connected with a corresponding one of said first number of secondary windings, and a multiple of said first number of power units being serially connected with respective others of said power units in each phase output line connectable to a multi-phase AC load; at least one measurement device, being electrically connected with said input to at least one of said first number of power units and being adapted for measuring an electrical quantity at the input thereto; and a control system, being adapted for detecting a fault based on a value for the measured electrical quantity.

Abstract translation: 多相电驱动器包括多相电力变压器，其包括初级绕组和第一数量的次级绕组，所述初级绕组可电连接到多相交流电源; 第一数量的功率单元，所述第一数量的功率单元中的每一个具有与所述第一数量的次级绕组中的相应一个的输入相连，并且所述第一数量的功率单元的倍数与所述功率单元中的相应另一个串联连接 每相输出线可连接多相交流负载; 至少一个测量装置，与所述输入电连接到所述第一数量的功率单元中的至少一个，并适于测量其输入端的电量; 以及控制系统，其适于基于所测量的电量的值来检测故障。