Gyung-Hun Sim, Sung-Hoi Huh, and Kyo-Beum Lee, "Robust Sensorless Control for Induction Motor Drives Fed by a Matrix Converter with Model Reference Adaptive Control," The Transactions of the Korean Institute of Electrical Engineers, vol. 57, no. 4, pp. 61 > Paper

This paper presents a new robust sensorless control system for high performance induction motor drives fed by a matrix converter

with variable structure. The lumped disturbances such as parameter variation and load disturbance of the system are estimated by

a variable structure approach based on model reference adaptive scheme. A Reduced Order Extended Luenberger Observer

(ROELO) is also employed to bring better responses at the low speed operation. Experimental results are shown to illustrate the

performance of the proposed system.