Implementation of a lowcost sinusoidal supply for BLDC motor
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
2001
9th European Conference on Power Electronics and Applications. EPE 2001
Copyright 2002, IEE
8 pp.
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
EPFL