公开(公告)号：US06936991B2

公开(公告)日：2005-08-30

申请号：US10449824

申请日：2003-05-30

申请人： Li Chen ,  Roy I. Davis ,  Stephen Stella ,  Tod R. Tesch

发明人： Li Chen ,  Roy I. Davis ,  Stephen Stella ,  Tod R. Tesch

IPC分类号： H02P6/08 ,  H02P21/00 ,  H02P21/06

CPC分类号： H02P21/06 ,  B60K6/26 ,  H02P6/08 ,  H02P21/0089 ,  H02P21/22

摘要： A closed-loop permanent magnet motor control method and system optimally partitions torque and flux-weakening currents to produce a desired torque without exceeding the capability of the DC source. A maximum limit for allowable torque current and a minimum threshold for the maximum torque current are determined, and the flux current is varied based at least in part on whether the maximum torque current limit is above or below the minimum threshold while operating in a flux-weakening region to compensate for the variability of the DC source voltage.

摘要翻译： 闭环永磁电动机控制方法和系统最优地分配扭矩和弱磁电流以产生期望的转矩而不超过直流电源的能力。 确定允许转矩电流的最大极限和最大扭矩电流的最小阈值，并且至少部分地基于最大转矩电流极限是否高于或低于最小阈值来改变通量电流，同时在通量 - 弱化区域以补偿直流电源电压的变化。