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In this paper,the problem of designing a controller for a highly coupled constrained nonlinear boilerturbine system is addressed with a predictive controller.First,a nonlinear predictive control is implemented by genetic algorithm.Second,to guarantee fast output stabilization,an H-infinity fuzzy state-feedback tracking control is applied with a designed switching principle.The success of such a control structure is based on taking advantage of the optimal input sequence derived from the nonlinear predictive control based on artificial intelligent while ensuring a fast decay of the steady state error.Simulation results of the proposed design are given to illustrate its effectiveness and compared to other control schemes.