A Current Source Inverter Fed Induction Motor Drive with Power Factor Angle Control Using Microprocessor

Biswas, SK and Sathiakumar, S and Vithayathil, J (1987) A Current Source Inverter Fed Induction Motor Drive with Power Factor Angle Control Using Microprocessor. In: IEEE Transactions on Industrial Electronics, 34 (4). pp. 441-446.

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Abstract

This paper describes a method of adjusting the stator power factor angle for the control of an induction motor fed from a current source inverter (CSI) based on the concept of space vectors (or park vectors). It is shown that under steady state, if the torque angle is kept constant over the entire operating range, it has the advantage of keeping the slip frequency constant. This can be utilized to dispose of the speed feedback and simplify the control scheme for the drive, such that the stator voltage integral zero crossings alone can be used as a feedback for deciding the triggering instants of the CSI thyristors under stable operation of the system. A closed-loop control strategy is developed for the drive based on this principle, using a microprocessor-based control system and is implemented on a laboratory prototype CSI fed induction motor drive.

Item Type:	Journal Article
Publication:	IEEE Transactions on Industrial Electronics
Publisher:	IEEE
Additional Information:	Copyright 1987 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 > Electrical Engineering
Date Deposited:	03 Jul 2009 05:14
Last Modified:	19 Sep 2010 05:33
URI:	http://eprints.iisc.ac.in/id/eprint/20607

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