Analysis and design of full-order flux observers for sensorless induction motors

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Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2004-10-04

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Language

en

Pages

1033-1040

Series

IEEE Transactions on Industrial Electronics, Volume 51, issue 5

Abstract

This paper deals with the flux estimation for sensorless induction motor drives. The linearized model of the speed-adaptive full-order flux observer is applied to help choosing the observer gain and the speed-adaptation gains. It is shown that the linearized model reveals potential instability problems that are difficult to find by other means. An observer gain and a method to vary the speed-adaptation gains in the field-weakening region are proposed. Experimental results show stable operation in a very wide speed range.

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Keywords

flux estimation, full-order adaptive observer, induction motor drives, speed sensorless

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Citation

Hinkkanen , M 2004 , ' Analysis and design of full-order flux observers for sensorless induction motors ' , IEEE Transactions on Industrial Electronics , vol. 51 , no. 5 , pp. 1033-1040 . https://doi.org/10.1109/TIE.2004.834964