Optimal design of robust FOPID for the flight control system using multi-objective Differential Evolution

Metaheuristics algorithms are the most popular and robust algorithms for the optimization of the real world problems like pitch control of an aircraft system. This paper introduces Differential Evolution technique for the weighted multi-objective optimization based designing of the fractional order PID controller. The optimized values obtained from the techniques have been implemented for the Pitch control of an aircraft system to obtain the desired robust response. In this paper a mixed sensitivity H_∞ problem is designed and simulated using Matlab. It has been shown that the design of FOPID using multi-objective Differential Evolution technique gives better results than tuning of classical PID using Differential Evolution.