WSEAS Transactions on Systems and Control

Print ISSN: 1991-8763
E-ISSN: 2224-2856

Volume 12, 2017

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of WSEAS Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.

Volume 12, 2017

A Set of Speed Sensorless Observers For Estimation of the Rotor Flux and Load Torque For Asynchronous Machine

AUTHORS: Chouya Ahmed, Chenafa Mohamed, Mansouri Abdellah

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ABSTRACT: A state observer is proposed for asynchronous machine; with this observer it possible to observe rotor flux, rotating speed and load torque. The gain of this observer involves a design function that has to satisfy some mild conditions which are given. Different expressions of such a function are proposed. Of particular interest, it is shown that high gain observers and sliding mode observers can be derived by considering particular expressions of the design function.

KEYWORDS: Nonlinear observer, High gain observer, Sliding mode observer, State transformation, LYAPUNOV equation candidate, Sensorless speed


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WSEAS Transactions on Systems and Control, ISSN / E-ISSN: 1991-8763 / 2224-2856, Volume 12, 2017, Art. #13, pp. 130-138

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