Title: Modified speed sensorless indirect field-oriented control of induction motor drive

Authors: Yassine Beddiaf; Fatiha Zidani; Larbi Chrifi-Alaoui; Saïd Drid

Addresses: Department of Electrical Engineering, Faculty of Engineering, University of Khenchla, Khenchla, Algeria ' Electrical Engineering Department, LSPIE Laboratory, Faculty of Engineering, University of Batna, Rue Med El-Hadi Boukhlouf, Batna 05000, Algeria ' Laboratoire des Technologies Innovantes (LTI, EA 3899), University of Picardie Jules Verne, 13 Avenue F. Mitterrand, 02880, Cuffies, France ' Electrical Engineering Department, LSPIE Laboratory, Faculty of Engineering, University of Batna, Rue Med El-Hadi Boukhlouf, Batna 05000, Algeria

Abstract: This paper presents an improved method of stator angular (frequency) θ_s estimation for sensorless indirect oriented field control of induction motors based on a phase locked loop (PLL). A PLL is used to estimate the stator voltage angular frequency taking account only the reference speed. A reduced-order observer is used to estimate speed and rotor flux. Extensive simulation and experimental tests confirm the effectiveness of the proposed approach.

Keywords: induction motors; phase locked loop; PLL; indirect field oriented control; IFOC; reduced-order observer; sensorless control; induction motor drives; stator voltage angular frequency; speed; rotor flux.

DOI: 10.1504/IJMIC.2016.076833

International Journal of Modelling, Identification and Control, 2016 Vol.25 No.4, pp.273 - 286

Received: 04 Aug 2014
Accepted: 29 Sep 2015
Published online: 01 Jun 2016 *

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