Rotor field oriented control of linear induction machine based on fuzzy self-adapting PI controller

This paper proposes a new rotor (also called secondary) field oriented control model of linear induction machine (LIM) based on a fuzzy self-adapting PI controller which mainly considers the influence of longitudinal end effect. Because the conventional PI controller´s parameters cannot be adjusted by itself, it is not very suitable to ever changeful situations especially influenced by non-linear circuit parameters in LIM, such as mutual inductance and secondary resistance. Depending on the rapidity of response, the fuzzy self-adapting PI controller is able to regulate the parameters of its embedded PI controller through fuzzy control scheme to accustom itself to different new situations. Simulation results indicate that the proposed control model has strong robustness and quick response to new dynamic procedures.