Fuzzy Based Flatness Control of an Induction Motor

Induction motors are widely used in industry and many other fields due to its robustness, reliability, low price and free maintenance. Control of an induction motor is a complicated task because of the unknown disturbances and the uncertainty. This paper presents a fuzzy differential flatness-based controller for induction motor vector control system. The flatness-based approach uses the characterization of system dynamics to generate a suitable output and it can control continuous nonlinear systems with good performances in term of tracking trajectory. Fuzzy logic is used to eliminate the effects of the time-varying nonlinear system. Simulation results shown that the fuzzy flatness based control scheme can improve the control performance effectively.