Dynamic output feedback model predictive control for nonlinear systems represented by Hammerstein–Wiener model

This paper presents dynamic output feedback model predictive control (DOFMPC) for nonlinear systems represented by a Hammerstein–Wiener model. Compared with a previous work (IET-OFMPC: output feedback model predictive control for nonlinear systems represented by Hammerstein–Wiener model. IET Control Theory & Applications, 2007, 1 (5) pp. 1302–1310), this paper uses the notion of quadratic boundedness to specify the closed-loop stability and guarantees the recursive feasibility of the optimization problems. By optimizing all the parameters of the dynamic output feedback law within a single optimization problem, the computational burden is very huge. Hence, an alternative formulation is also proposed with much lower on-line computational burden. Numerical examples are given to illustrate the effectiveness of the controllers.

► New output feedback procedure for Hammerstein–Wiener model.
► Iterative solution approximates the theoretically minimum solution.
► Recursive feasibility is guaranteed.
► The notion of quadratic boundedness is applied.
► Application to fuel cell model.