Adaptive Full Order Observer for Sensorless Induction Motor Control
Fathi Farhani, Chiheb Ben Regaya, Abderrahmen Zaafouri, Abdelkader Chaari
Transactions on Machine Design, Vol. 1, No. 1, 2013.
DOI: 
Link: http://www.dline.info/tmd/fulltext/v1n1/2.pdf
Abstract:
This paper proposes a method for designing a sensor less induction motor drive based on a robust rotor flux observer. The industrial world demands reliable and inexpensive systems. For this reason, the number of sensors is reduced. Accordingly, this study will focus on the design of a robust rotor flux observer using both the Lyapunov theory and the linear matrix inequality (LMIs). Thus, the development of an estimator of the rotor speed. The proposed solution always results in a stable and robust controller against variations of resistances. The solution is evaluated by simulation.