Abstract
Abstract A direct current (DC) motor is supposed to be operated at an accurate and constant speed even if the load on the system is increased or decreased. This paper had controlled the DC motor's speed based on the fuzzy logic methods and simulated the fuzzy rules in Matlab/Simulink environment. Fuzzy Logic Controllers were proposed to achieve the speed control of a DC motor using combined armature voltage and field current by varying the armature voltage in the constant torque region and the field current in the constant power region. The fuzzy logic controllers were designed to be dependent on one another in such a way that the same set of rules were fired at the same time for the two controllers, having the same antecedences but different consequences. Simulation results show the effectiveness of the proposed method.
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