Vibrationless alignment algorithm for incremental encoder based BLDC drives

doi:10.1016/j.epsr.2012.09.010

2013-02-01

PRE

Carlo Concari

G. Franceschini

Andrea Toscani *

DOI：10.1016/j.epsr.2012.09.010

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摘要

En 中文

Incremental encoder based BLDC drives are widely employed in industry whenever smooth and efficient operation is needed in the whole speed range. Their weak spot lies in the need for a phase of initial alignment, traditionally performed by forcing the motor through a series of fixed phase supply configurations in an open loop stepping mode. This strategy of alignment causes ample mechanical vibrations which can be intolerable for certain applications. This paper presents a novel algorithm for determining the initial rotor sector and aligning the encoder with the motor while minimizing vibrations and oscillations. (C) 2012 Elsevier B.V. All rights reserved.

Keyword:

Brushless machines

Alignment

Digital control

Modeling

Starting

Vibration control