Estimation of induction machine inverse rotor time constant using torque angle tangent calculation

D. Telford, M. W. Dunnigan, B. W. Williams

Research output: Contribution to journalArticle

Abstract

A new inverse rotor time constant estimation scheme for an induction machine is presented. For high performance induction machine control, indirect rotor flux oriented vector control is the most commonly applied control technique. It requires that an accurate estimate of the inverse rotor time constant is obtained to ensure correct orientation of the current vector with the rotor flux vector. An incorrect estimate will result in an incorrect flux level, reduced dynamic torque performance and reduced maximum available torque. A novel parameter estimation scheme is presented, based on the calculation of the tangent of the torque angle. The effectiveness of the technique is demonstrated through simulation and practical results.

Original languageEnglish
Pages (from-to)319-343
Number of pages25
JournalInternational Journal of Electronics
Volume91
Issue number6
DOIs
Publication statusPublished - Jun 2004

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