Fractional Order Proportional, Integral, Derivative (FOPID) controller is a modified Proportional Integral Derivative (PID) controller, which has fractional orders for its derivative and integral parts rather than an integer. Two techniques, namely, PID and FOPID, are adopted to design and implement a Three Degree of Freedom (3DOF) control system to stabilize pitch, roll and travel axes of the helicopter system. In this study, an improvement in the performance of the controllers is achieved using the Genetic Algorithm (GA) optimization method which is employed to find optimum parameter values for controller gains. The helicopter control system is modeled mathematically and then simulated using MATLAB environment to verify the performance of the proposed PID and FOPID controllers based on the GA tuning method. Simulation results suggest that the GA-FOPID controller compared with GA-PID controller can achieve faster and more stable control performance for the 3DOF helicopter system.

No abstract

No abstract

No abstract