Loading [a11y]/accessibility-menu.js
Adaptive interconnected observer for induction machine in presence of nonlinear magnetic characteristic | IEEE Conference Publication | IEEE Xplore

Adaptive interconnected observer for induction machine in presence of nonlinear magnetic characteristic


Abstract:

The problem of state estimation in induction motors is considered. Generally, the motor observer design is dealt with, based on standard models ignoring the saturation ef...Show More

Abstract:

The problem of state estimation in induction motors is considered. Generally, the motor observer design is dealt with, based on standard models ignoring the saturation effect of the magnetic characteristic. As a matter of fact, magnetic saturation cannot be ignored especially when considering (speed, torque) control strategies that involve large flux variations. Such large variations are necessary to meet optimal operation conditions in presence of wide range load torque changes. On the other hand, it is well known that the use of mechanical (speed, torque) sensors leads to reliability issues. In this paper, a new adaptive observer design is developed for induction machine, based on a model that accounts for the nonlinear feature of the magnetic circuit. The observer provides estimates of the mechanical and magnetic variables using only stator currents and voltages measurements. The observer convergence is formally analyzed and illustrated by simulation.
Date of Conference: 29 June 2011 - 01 July 2011
Date Added to IEEE Xplore: 18 August 2011
ISBN Information:

ISSN Information:

Conference Location: San Francisco, CA, USA

References

References is not available for this document.