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Direct field-oriented control of an induction machine using an adaptive rotor resistance estimator

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2 Author(s)
Reed, D.M. ; MIT Lincoln Lab., Lexington, MA, USA ; Hofmann, H.F.

This paper presents a new adaptive rotor resistance estimator for induction machines. Stability and convergence of the proposed technique are rigorously analyzed, and regions of convergence are clearly shown. Furthermore, rotor flux linkage estimators are implemented using the trapezoidal rule for improved accuracy and stability. These estimators are then incorporated into a direct field-oriented controller and thoroughly tested on experimental hardware. The resulting controller achieves a satisfactory level of performance over a wide range of operating conditions while eliminating the detuning caused by rotor resistance variations.

Published in:

Energy Conversion Congress and Exposition (ECCE), 2010 IEEE

Date of Conference:

12-16 Sept. 2010