摘要
针对无刷直流电机的双斩和四种单斩PWM调制方式,分析调制方式对电机稳态转矩脉动的影响,建立稳态及换向过程中电机相电流及电磁转矩的数学模型。基于M atlab无刷直流电机的仿真模型,研究换向转矩脉动与各种单斩PWM调制方式的关系。
This paper analyzes the different PWM modes (single chop PWM modes and double chop PWM modes)influence on the static torque ripple in Brushless DC motor (BLDCM) control system. The mathematic models of phase current and electromagnetic torque are derived. Based on Matlab BLDCM modules,the relation between four PWM modes (H _ pwm -L _ on, H _ on- L _ pwm, on _ pwm, pwm _ on) and commutation torque ripples are discussed.
出处
《微电机》
北大核心
2006年第1期58-61,98,共5页
Micromotors
基金
航空科学基金项目(项目编号:04F53036)