Abstract
This paper introduced the discrete time programming and the simulation by using Matlab/Simulink® of the conventional Direct Torque Control (DTC) with a Fuzzy-Logic-Based (FLB) speed regulator for PM synchronous motors. Fist the conventional DTC principle for PM synchronous motors is analyzed and simulated by using a Proportional Integral (PI) speed controller. Then instead of using the PI controller a proposed Fuzzy-Logic-Based (FLB) speed controller is embedded on the conventional DTC scheme in order to compare the performances of both designed speed regulators under different operating points. Discrete time simulated results confirm that the proposed intelligent controller provides better results than the commonly used classical one.
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