Title
An integrated permanent magnet brushless motor driver with commutation current ripple reduction
Abstract
An integrated permanent magnet (PM) brushless motor driver with commutation current ripple reduction strategy is proposed in this study. The speed control and commutation current ripple reduction can both be achieved by only adjusting the duty ratio of the main switch. The other six active switches controlled by low-frequency commutation signals determined from the Hall effect sensors. The operation principles of the driver in normal conduction period and commutation period are both analyzed. To reduce the commutation ripple current, a compensation strategy is also provided by modifying the main switch duty ratio. A 500 W prototype of proposed driver for a PM brushless motor with a rated speed of 3000 rpm was constructed to verify the performance and validity. From the experimental results under different load and speed conditions, it can be seen that the current ripple in the commutation period can be greatly reduced up to about 50%.
Year
DOI
Venue
2021
10.1587/elex.18.20210454
IEICE ELECTRONICS EXPRESS
Keywords
DocType
Volume
PM brushless motor, two-phase commutation, commutation current ripple
Journal
18
Issue
ISSN
Citations 
24
1349-2543
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Tsair-Rong Chen100.34
Li-Ling Chen200.34
Yu-Lin Juan300.34
Chang-Chieh Yang400.34
Chia-Chi Tsai500.34