title: An Online Observer for Minimization of Pulsating Torque in SMPM Motors.
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.
authors.affiliation: Faculty of Engineering, University "Lucian Blaga" of Sibiu, Sibiu, Romania.
authors.forename: Lucian
authors.initials: L
authors.lastname: Roșca
authors.affiliation: Department of Product Design and Robotics, University Transilvania of Brasov, Braşov, Romania.
authors.forename: Mihai
authors.identifier: http://orcid.org/0000-0002-7009-356X
authors.initials: M
authors.lastname: Duguleană
mesh_terms: D000465:Algorithms; D004867:Equipment Design; D005246:Feedback; D005583:Fourier Analysis; D008280:Magnetics / Q000295:instrumentation* / Q000379:methods; D008962:Models, Theoretical; D009862:Online Systems; D012815:Signal Processing, Computer-Assisted; D019415:Torque