earticle

영어

A method of strong stability controller design for interval system is proposed in this paper .The nominal value of the controller is designed based on H∞ theory. Combine with Arguon’s theoretical analysis the characteristics of the controller gain to get a strong stable controller.The innovation of this paper lies in separate interval system perturbation to design nominal controller utilize H∞ theory, analyze the characteristic of the gain of interval controller apply Arguon’s theory to improve the stability. At last, a numerical example is given for the design of a strong stability controller applied to an electro hydraulic position servo system.