This paper presents a method to reduce commutation torque ripples occurred during commutation in brushless dc motor drives using
a single DC-link current sensor. In brushless dc motor drives with a single dc current sensor instead of 3-phase line current sensors, it
is noted that dc-link current sensor cannot give any information corresponding to the motor currents during line current commutation
intervals. A new technique to resolve such a problem is dealt with based on a deadbeat current control in which motor armature
voltage command is computed from a dc-link current reference, an actual current and counter emf voltage. The simulation results show
that the proposed method reduces the torque ripple significantly.
- 14.pdf (1.4M) 4회 다운로드 | DATE : 2019-06-27 18:16:12