ZHOU, Huawei,LIU, Guohai,JI, Jinghua,ZHAO, Wenxiang,CHEN, Qian,CHEN, Long
申请号：
WO2016CN95627
公开号：
WO2018018672(A1)
申请日:
2016.08.17
申请国别(地区):
世界知识产权组织国际局
年份:
2018
代理人:
摘要：
Disclosed is a fault-tolerant vector control method for non-adjacent two-phase short circuits of a five-phase permanent magnet embedded fault-tolerant linear motor. Firstly, according to the principle that a magnetomotive force remains unchanged before and after this two-phase open-circuit fault and the sum of non-fault-phase currents is equal to zero, a popularization Clarke transformation matrix is deduced by taking the condition that amplitude values of adjacent two-phase currents are equal as a constraint condition; a counter electromotive force is estimated by adopting a transpose of the matrix; a nonlinear strong coupling system of the motor in a fault state is converted into a first-order inertial system by adopting an internal model controller, a first-order inertia feedforward voltage compensator and a counter electromotive force observer; a short-circuit compensation voltage is obtained according to the principle that a synthesized magnetomotive force of a non-fault-phase short circuit compensation
