| The robust diagonal dominant method and the simultaneous diagonal dominant method are put forward for the two kinds of structured uncertain system. Based on the robust diagonal dominance, a kind of robust method for the design of the structured uncertain system with its nominal model and its upper limit known is achieved; based on the simultaneous diagonal dominance, a kind of simultaneous stable method for the design of the structured uncertain system with several model is produced in this paper. The applied procedure made for the robust design of multivariable structured uncertain system are programmed by MATLAB, and the coordinated control system of the once-though boiler is designed and simulated by using the procedure. The results of the simulation show the two methods effective. Jiang Yiheng (Control Theory and Control Engineering) Directed by Prof. Tian Pei...
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