Robust Control of an Induction Motor with Speed and Flux Estimator based on synergetic approach

This paper, describes a novel control strategy in variable speed drives for Induction Motor (IM) that aims to improve the Direct Rotor Field-oriented control (DFOC, which is well known to be sensitive to internal and external uncertainties. The control principle is based on Synergetic Control (SC) where SC contributes to the robustness and good dynamics of induction motor drives. To obtain precise velocity estimation and remove all mechanical sensors and to estimate the rotor flux, the method (SC) has been used. The proposed method is verified by simulation