Towards a Generic Torque and Reactive Power Controller for Doubly-Fed Machines

Chaal, Hamza and Jovanovic, Milutin (2011) Towards a Generic Torque and Reactive Power Controller for Doubly-Fed Machines. IEEE Transactions on Power Electronics, 27 (1). pp. 113-121. ISSN 0885-8993

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Official URL: http://dx.doi.org/10.1109/TPEL.2011.2160731

Abstract

A novel shaft-position sensorless algorithm for decoupled control of torque and reactive power (TRPC) of doublyfed machines like the classical wound rotor induction machine (DFIM) and the emerging brushless reluctance machine (BDFRM), has been discussed and experimentally verified in this paper. The underlying control concept is derived from first principles of magnetization and torque production in the machines. For control purposes, only the grid-connected winding measurements and rough knowledge of its resistance value are required. Such a weak parameter dependence makes the TRPC inherently robust, structurally simple and fast to execute even on low-cost DSPs. A variety of applications is possible including drive and generator systems with limited variable speed ranges (e.g. large pumps and wind turbines) where cost savings of using partially-rated power electronics are significant. Two customdesigned and built BDFRM prototypes have served as case studies to evaluate the controller performance by computer simulations and through laboratory experiments.

Item Type: Article
Uncontrolled Keywords: Doubly fed machines, power-factor regulation, sensorless torque control
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: EPrints Services
Date Deposited: 27 Oct 2011 11:08
Last Modified: 25 Sep 2015 13:24
URI: http://nrl.northumbria.ac.uk/id/eprint/601

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