Speed Control Of D.C. Motor Using GA Tunedfractional Complex Pix+Iyd Controller

DC motors have been employed in domestic and industrial works owing to their tendency of developing a constant torque over wide speed applications. A typical Dc motor has characterizing parameters like inertia of the rotor, friction damping coefficient, winding resistances and inductances. The objective of a controller is to maintain the same speed with a step change in the excitation. Conventionally, Proportional Integral Derivative (PID) controller is widely used in controlling the speed of DC motor. With the use of fractional order calculus in synthesizing fractional order PID (FOPID) controller the quality of the controller and the output is increased. This paper synthesizes a new form of FOPID controller namely complex fractional order PID (CFOPID) through Genetic Algorithm.