Fuzzy Controller applied in the Direct Torque Control of Induction Motors

The principle of Direct Torque Control is to control the induction motor′s torque by selecting the switching states of the inverter according the deviations of torque and flux. However, during starting up and the change in load, the response of control is slow. Therefore, this paper introduces a Fuzzy controller, it has good robustness of fuzzy cotroller ,so as to avoid the preceding inconveniences. Experiment results show the controller has good performance.