Flux observer algorithms for direct torque control of brushless doubly-fed reluctance machines

Chaal, Hamza and Jovanovic, Milutin (2009) Flux observer algorithms for direct torque control of brushless doubly-fed reluctance machines. Industrial Electronics, 2009. IECON '09. 35th Annual Conference of IEEE. pp. 4440-4445. ISSN 1553-572X

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Chaal H, Jovanovic M - Flux observer algorithms for direct torque control of brushless doubly-fed reluctance machines - conference paper.pdf

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Official URL: http://dx.doi.org/10.1109/IECON.2009.5414891

Abstract

Direct Torque Control (DTC) has been extensively researched and applied to most AC machines during the last two decades. Its first application to the Brushless Doubly-Fed Reluctance Machine (BDFRM), a promising cost-effective candidate for drive and generator systems with limited variable speed ranges (such as large pumps or wind turbines), has only been reported a few years ago. However, the original DTC scheme has experienced flux estimation problems and compromised performance under the maximum torque per inverter ampere (MTPIA) conditions. This deficiency at low current and torque levels may be overcome and much higher accuracy achieved by alternative estimation approaches discussed in this paper using Kalman Filter (KF) and/or Sliding Mode Observer (SMO). Computer simulations accounting for real-time constraints (e.g. measurement noise, transducer DC offset etc.) have produced realistic results similar to those one would expect from an experimental setup.

Item Type: Article
Uncontrolled Keywords: AC machines , Kalman filter , brushless doubly-fed, direct torque control , flux estimation, sliding mode observer
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: EPrint Services
Date Deposited: 11 Jan 2011 10:22
Last Modified: 09 May 2017 15:50
URI: http://nrl.northumbria.ac.uk/id/eprint/2883

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