A digital filter for speed noise reduction in drives using an electromagnetic resolver

Armando Bellini and Stefano Bifaretti

Mathematics and Computers in Simulation (MATCOM), 2006, vol. 71, issue 4, 476-486

Abstract: The measurement of the rotation speed is an important issue in closed-loop industrial drives. The motor speed is often calculated by a derivative operation of the position measure obtained by an electromagnetic resolver. As a consequence, especially at the lowest speeds, the noise overlapped to the measured speed is significant and a suitable filter becomes necessary. The paper presents a solution to such a problem based on the employment of a stationary Kalman filter, suitably inserted in a phase locked loop structure. The implementation in an industrial synchronous motor drive, using a 16-bit fixed point DSP, has confirmed the goodness of the proposed solution.

Keywords: Estimation techniques; Measurement; Motor drives; Real-time processing (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:71:y:2006:i:4:p:476-486

DOI: 10.1016/j.matcom.2006.02.007

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