An Interval Type-2 Fuzzy Based DTC of IMD Using the Hybrid Duty Ratio Control

摘要

This paper provides an interval type-2 fuzzy based DTC (IT2FDTC) of the induction motor drive (IMD) in which a hybrid duty ratio control (HDRC) technique is used to activate a two-level inverter. Moreover, it is implemented with the help of DSPACE-1104 controller in real-time application using 2HP induction motor and compared its overall performance with a conventional proportional integral DTC (CPIDC) using SVM technique. The IT2FDTC can be provided less torque and flux ripples with fast dynamic performance of IMD over a CPIDTC. A three-dimensional Mamdani type-2 fuzzy controller along with centroid method is used in IT2FDTC. Hence, the proposed method of study not only control the gains of PI effectively, but also control the duty ratios of modulating wave to further improve the dynamic performance and current harmonic profile of IMD.