Fractional PIλ control of anti-aircraft artillery servo system

Anti-aircraft artillery servo system requires high tracking accuracy and strong robustness. In this paper, an algebraic tuning rule is presented for fractional PI^λ controllers to control anti-aircraft artillery. A group of suitable parameters can be chosen out by drawing the curve describing relation between gain k_p, k_i and integral order λ when the crossover frequency and phase margin are given. The oscillation index is introduced to help decide appropriate crossover frequency and phase margin that should be set. Simulation results are brought to demonstrate the effectiveness and robustness of this parameter tuning method.