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Fast Current Control for Low Harmonic Distortion at Low Switching Frequency

Khambadkone, Ashwin M and Holtz, Joachim (1998) Fast Current Control for Low Harmonic Distortion at Low Switching Frequency. In: IEEE Transactions on Industrial Electronics, 45 (5). pp. 745-751.


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The structure of the current control loop of an induction machine drive determines decisively the dynamic performance of the overall system. Fast current control is a prerequisite for dynamic decoupling between the torque and the flux commands. Standard solutions are well established for drives in the low- and medium-power ranges. The low switching frequency of high- power pulsewidth modulation inverters calls for a tradeoff in controller design between the low harmonic losses and torque ripple in the steady state on one hand, and fast dynamic response during the transients on the other. The problem is developed in detail. A variable-structure approach is proposed as the solution.

Item Type: Journal Article
Publication: IEEE Transactions on Industrial Electronics
Publisher: IEEE
Additional Information: ©1998 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.
Keywords: current control;feedback pulsewidth modulation;high-power drives;variable-structure pulsewidth modulation
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 25 Aug 2008
Last Modified: 19 Sep 2010 04:15
URI: http://eprints.iisc.ac.in/id/eprint/1455

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