摘要
针对五种PWM调制方式对永磁无刷电动机换相转矩脉动的大小进行了分析和比较。理论推导得到:pwm-on方式的换相转矩脉动最小;Hpwm-Lpwm方式的换相转矩脉动最大;其余三种的换相转矩脉动在其两者之间。经仿真分析和实验观测,验证了理论分析的正确性。
The magnitudes of the commutation torque ripple of permanent magnet brushless DC motor were analyzed and compared with 5 PWM modes, resulting in the least commutation torque ripple as pwm-on, the maximum as Hpwm-Lpwm, the others in between them. And the correctness of above conclusions were verified by simulation and experiment in this paper.
出处
《中小型电机》
北大核心
2005年第6期48-52,55,共6页
S&M Electric Machines
关键词
永磁无刷电动机
换相转矩脉动
脉宽调制
permanent magnet brushless D.C. motor
commutation torque ripple
pules width modulation
