In order to have a reliable operation, must reduce the speed fluctuation, namely must effectively restrain the load torque ripple and motorelectromagnetictorque ripple of speed fluctuation bring.
为了可靠运行，必须降低转速的波动，即必须有效抑制负载转矩脉动和电机电磁转矩脉动带来的转速波动。
2
Hybrid stepping motor rotor with permanent magnets, excitation and produced by permanent magnet electromagnetictorque realize stepping operation.
混合式步进电机的转子用永久磁钢，由励磁和永磁产生的电磁力矩实现步进运行。
3
The model can depict radial force and electromagnetictorque generated in the motor more accurately in the region of magnetic saturation.