Inherent FCS-Model predictive torque control for induction machine without Encoder

In this paper, an inherent finite control set model predictive torque control for induction machine without Encoder is proposed. With this inherent method, the model predictive controller is designed as speed-independent. For the estimation of the stator flux, the reduced order observer is applied. In this way, predictive torque controller and observer are not dependent on the speed. The influence brought by speed error is eliminated. The cost function is built to select the best switching vector for voltage source inverter. All possible inverter switching vectors are taken into calculation. The vector which minimizes the cost function is selected. The process and results are presented in the paper to verify the proposed strategy.