Online rotor resistance estimation based on MRAS sliding mode observer for induction motors
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Date
2013
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Publisher
IEEE
Abstract
This paper deals with rotor resistance estimation for
induction motors drives purpose. A novel MRAS structure for
rotor resistance adaptation is proposed. It is based mainly on the
use of a very robust sliding mode flux observer as reference
model, which gives robustness to the whole parameter estimation
operation. Unlike to classical MRAS structure, based on the use of
pure integrators, which have initial value and drift problems.
By using the proposed MRAS-Sliding mode observer, system
has a better performance and robustness. Effectiveness of this
proposed estimation structure is verified by experiment under
critical disturbance conditions.
Description
Keywords
Rotor resistance estimation, Sliding mode flux observer, Induction motor