A Novel PWM_OFF_PWM Mode for Braking Operation of Brushless DC Motor

被引：0
|
作者：
Yao, Xuliang [1 ]
Zhang, Yan [1 ]
Jiang, Xiaoming [1 ]
机构：
[1] Harbin Engn Univ, Dept Elect Engn, Harbin, Heilongjiang, Peoples R China
来源：
IECON 2017 - 43RD ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY | 2017年
关键词：
Brushless DC Motor; PWM_OFF_PWM; braking operation; diode freewheeling; commutation torque ripple; TORQUE CONTROL; SYSTEM; STRATEGY; RIPPLE;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The conventional pulse width modulation (PWM) modes for braking operation in Brushless DC motor may cause diode freewheeling in inactive phase during normal conduction period which will aggravate torque ripple. In this paper, a novel braking PWM modulation mode named PWM_OFF_PWM is proposed to eliminate the diode freewheeling. The performance of the proposed PWM_OFF_PWM mode on diode freewheeling and commutation torque ripple are analyzed. During normal conduction period, the proposed PWM_OFF_PWM mode is confirmed to give no contribution to diode freewheeling; during commutation period, the speed range where commutation torque ripple can be suppressed is derived. At last, simulation results verify the feasibility of the proposed braking PWM_OFF_PWM mode and the correctness of the theoretical analysis.
引用
收藏
页码：1711 / 1716
页数：6
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