| Authors | A. Halvaei Niasar, H. Moghbelli, A. Vahedi |
|---|---|
| Conference Title | 9th IEEE International Workshop on Advanced Motion Control (AMC) |
| Holding Date of Conference | March 2006 |
| Event Place | Istanbul, Turkey |
| Presented by | دانشگاه علم و صنعت ایران |
| Presentation | SPEECH |
| Conference Level | International Conferences |
Abstract
In part I of this paper, commutation torque ripple of a four-switch, three-phase inverter (FSTPI) brushless dc motor drive (BLDC) was analyzed in details. This paper presents a comprehensive study on the controllability and reduction of the generated commutation torque ripples. It's shown that the conventional techniques for controlling of the phase current in a FSTPI brushless dc motor drive are practically effective in low speed and can not reduce the commutation torque ripple in high speed range. Therefore a novel current control technique is developed to minimize the commutation torque ripple for entire of speed range. The technique proposed here is based on a strategy that the current slopes of the rising and the decaying phases during the commutation interval can be equalized by proper duty-ratios in the six operation modes.