An Online Observer for Minimization of Pulsating Torque in SMPM Motors

Lucian Roșca; Mihai Duguleană

doi:10.1371/journal.pone.0153255

An Online Observer for Minimization of Pulsating Torque in SMPM Motors

PLoS One. 2016 Apr 18;11(4):e0153255. doi: 10.1371/journal.pone.0153255. eCollection 2016.

Authors

Lucian Roșca¹, Mihai Duguleană²

Affiliations

¹ Faculty of Engineering, University "Lucian Blaga" of Sibiu, Sibiu, Romania.
² Department of Product Design and Robotics, University Transilvania of Brasov, Braşov, Romania.

Abstract

A persistent problem of surface mounted permanent magnet (SMPM) motors is the non-uniformity of the developed torque. Either the motor design or the motor control needs to be improved in order to minimize the periodic disturbances. This paper proposes a new control technique for reducing periodic disturbances in permanent magnet (PM) electro-mechanical actuators, by advancing a new observer/estimator paradigm. A recursive estimation algorithm is implemented for online control. The compensating signal is identified and added as feedback to the control signal of the servo motor. Compensation is evaluated for different values of the input signal, to show robustness of the proposed method.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Algorithms*
Equipment Design
Feedback
Fourier Analysis
Magnetics / instrumentation*
Magnetics / methods
Models, Theoretical
Online Systems
Signal Processing, Computer-Assisted
Torque

Grants and funding

The work performed by MD was supported by the strategic grant POSDRU/159/1.5/S/137070 (2014) of the Ministry of Labor, Family and Social Protection, Romania (http://www.mmuncii.ro/j33/index.php/en/), co-financed by the European Social Fund (http://ec.europa.eu/esf/home.jsp) – Investing in People, within the Sectoral Operational Programme Human Resources Development 2007‐2013. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.