Implementation of a lowcost sinusoidal supply for BLDC motor

• Published in: 9th European Conference on Power Electronics and Applications. EPE 2001, num. Copyright 2002, IEE, p. 8 pp.
• Series: 9th European Conference on Power Electronics and Applications. EPE 2001
• EPE Assoc, 2001

In many applications, industry has tried to develop sinusoidal supply for brushless DC (BLDC) motors. This paper describes a method that still keeps a simple 2 phases-on sensorless method and achieves sinusoidal supply, which is needed to avoid speed oscillations due to the very low mechanical constant of small motors. The method is based on back-EMF sensing. Principles, measures and extensions are proposed. The results of industrial applications are exposed and discussed

Keywords: brushless DC motors ; control system analysis ; control system synthesis ; machine theory ; machine vector control ; power conversion harmonics ; power supplies to apparatus ; velocity control

Note:

Electromech. Inst., Swiss Fed. Inst. of Technol., Lausanne, Switzerland

7237705

brushless DC motors

low-cost sinusoidal supply

applications

control design

2 phases-on sensorless control method

speed oscillation reduction

back-EMF sensing

control simulation

Reference

• LAI-CONF-2001-006

Record created on 2006-06-15, modified on 2017-05-10