电气传动2019，Vol.49Issue(1)：12-17,6.DOI:10.19457/j.1001-2095.dqcd18396
基于关断相二次续流的BLDC无位置传感器控制
Sensorless Control of Brushless DC Motors Based on Silent Phase Secondary Freewheeling Current
仇志坚 1豆帅涛1
作者信息
- 1. 上海大学上海市电站自动化技术重点实验室,上海 200444
- 折叠
摘要
Abstract
The relationship between the zero-crossing of the back EMF and the secondary freewheeling current of the brushless DC(BLDC)motor was analyzed,and the characteristics of the secondary freewheeling current and its peak value were discussed. The discipline between the forward/lagged commutation deviation and the peak value of the off phase current was deduced. On this basis,a commutation and deviation correction control method was proposed for brushless DC motors. The feasibility of the control method was verified by simulation experiments,and the commutation and correction performance were improved.关键词
无刷直流电机/无位置传感器/二次续流/换相偏差Key words
brushless DC motor/sensorless/secondary free-wheeling current/commutation deviation分类
信息技术与安全科学引用本文复制引用
仇志坚,豆帅涛..基于关断相二次续流的BLDC无位置传感器控制[J].电气传动,2019,49(1):12-17,6.
