公开(公告)号：US11290047B2

公开(公告)日：2022-03-29

申请号：US16337415

申请日：2018-08-31

申请人： GAC AION NEW ENERGY AUTOMOBILE CO. LTD

发明人： Zhuliang Xia ,  Wei Liu ,  Xingkun Qin ,  Huizhong Zhang ,  Zhantu Liao ,  Xiaokun Zhao

IPC分类号： H02P1/00 ,  H02P3/00 ,  H02P7/06 ,  H02P21/22 ,  H02P27/08

摘要： The present disclosure relates to a DC bus discharge control method, including that: an active discharge instruction is received; a motor current signal is acquired according to the active discharge instruction; the motor current signal is converted into a current signal in a stator coordinate system; a voltage control signal in the stator coordinate system is output based on the current signal in the stator coordinate system and a random current reference instruction of a preset stator coordinate system; and the voltage control signal in the stator coordinate system is converted into a three-phase voltage control signal, and a working state of a switching device is controlled according to the three-phase voltage control signal.