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Full Order Observer for Speed Estimation of Vector Controlled Induction Motor Drive

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Abstract:

In this paper, full order observer speed estimation of a vector controlled induction motor is presented. To decrease the associated maintenance costs, the most conventional model reference adaptive system MRAS structure is used to estimate the rotor speed. The adaptive full-order observer based on IM equation is used to estimate stator currents and rotor flux. Lyapunov’s stability criterion is employed to estimate rotor speed. Synthesis of the controller has been described. Digital simulations have been carried out in order to evaluate the effectiveness of the proposed sensorless drive system. The results prove excellent steady-state and dynamic performance of the drive system in a wide speed range, which confirms validity of the proposed scheme.

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Periodical:

Applied Mechanics and Materials (Volume 698)

Pages:

40-45

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.698.40

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Online since:

December 2014

Authors:

Ahmed Zaki Diab*, Denis Kotin, Vladimir Anosov, Oleg Slepcov

Keywords:

Full Order Observer, Induction Motor Drive, Speed Estimation, Vector Control

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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