星形联结三槽永磁直流电动机电枢反应的分析

Analysis of Armature Reaction of Star Connection Three Slots Permanent Magnet DC Motors

对星形联接三槽永磁直流电机电枢反应进行了分析,指出其电枢反应规律不同于三角形联结的电机,在正转和反转时电枢反应的性质不同,导致电机输出转矩不同。计及了电流换向和齿槽效应引起的波动,采用有限元法计算了星形联结电机的电磁转矩,证明了分析的正确性。

The armature reaction of three slots permanent magnet DC motor is analyzed here. It is pointed out that the star connection is different from the delta connection in armature reaction rule. Using FEM the torque is calculated taking into account the commutation of the armature current and the fluctuation of the rotor reluctance. The effectiveness of analysis is approved.