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A New Control Scheme for Improving Disturbance Rejection in Speed Control of Permanent Magnet Synchronous Motors

Srinivasan, B and Rao, NJ and Prasad, UR and Pittet, A (1996) A New Control Scheme for Improving Disturbance Rejection in Speed Control of Permanent Magnet Synchronous Motors. In: IEEE Transactions on Control Systems Technology, 4 (4). pp. 437-442.

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Abstract

The major hurdle encountered in achieving high performance in servo speed control is the occurrence of large relative errors at low speeds due to torque variations. In this paper, it is shown that this problem can be tackled in the case of synchronous motors, by keeping the stator current and the rotor flux nonorthogonal and including an inner position control loop to improve the transient behavior of the system. Such a scheme substantially improves disturbance rejection at the cost of accentuating the nonlinearities of the system and increasing the copper losses. In view of the pronounced nonlinearities encountered here, adaptive control using neural networks is resorted to.

Item Type: Journal Article
Additional Information: Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly, (CEDT) Centre for Electronic Design & Technology)
Division of Electrical Sciences > Computer Science & Automation (Formerly, School of Automation)
Date Deposited: 03 May 2006
Last Modified: 19 Sep 2010 04:26
URI: http://eprints.iisc.ernet.in/id/eprint/6553

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