05583425

j

05583425 Duan, Guangren Yan, Yingxin Fu, Yanming Observer-based robust non-fragile control. J. Nat. Sci. Heilongjiang Univ. 25, No. 1, 6-9 (2008). 2008 Editorial Department of Journal of Natural Science of Heilongjiang University, Harbin ZH non-fragile control linear matrix inequality magnetic bearing Summary: The observer-based robust non-fragile control for linear systems with structural parameter uncertainties is investigated. The problem of designing a controller is transformed into solving linear matrix inequalities. Considering both structural uncertainties in system model and controller, there is a coupling of output matrix and the control gain matrix makes the problem non-convex, and the problem is solved by making some assumptions on the perturbed matrix of a magnetic system and introduction of an equality constraint. The linear matrix inequality (LMI) optimization problem has not classic LMI solvable form, the free software SCILAB can be used to solve the LMI optimization problem with equality constraint, but MATLAB can not. The simulating results for a magnetic system with single free random demonstrate the effect of the method.