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Table 2 Critical analysis of the improvement techniques of direct torque control [29, 34, 53,54,55, 73, 116, 118,119,120,121]

From: Modern improvement techniques of direct torque control for induction motor drives - a review

  Conventional DTC SVM based DTC SMC based DTC DTC-MPC Fuzzy based DTC ANN based DTC GA based DTC
Torque dynamic response Fast Fast Fast Fast Very fast Very fast Very fast
Torque and flux ripple High Low Medium Low Very low Very low Medium
Current THD More distortions Less distortion Less distortion Less distortion Less distortion Less distortion Less distortion
Switching frequency Variable Constant Almost constant Constant Constant Constant Almost constant
Parameter sensitivity Insensitive Sensitive Insensitive Insensitive Insensitive Insensitive Insensitive
Switching loss High Low Medium Low Low Low Medium
Dynamic at low speed Poor Good Good Good Very good Very good Very good
Algorithm complexity Simple Simple Complex Simple More complex More complex Complex
Computation time Low Medium High Medium High High Medium
Precession Low Medium Medium Medium High High Medium
Regulation Hysteresis PI conventional SMC controller Hysteresis FLC ANN GA-PI