Optimal Control of Nonlinear Multivariable Systems

This paper concerns a study on the optimal control for nonlinear systems. anappropriate alternative in order to alleviate the nonlinearity of a system is the exact linearizationapproach. in this fashion, the nonlinear system has been linearized using input-output feedbacklinearization (iofl). then, by utilizing the well developed optimal control theory of linear systems,the compensated nonlinear system has been controlled. thus, the structure of the objective functionwill be converted into a quadratic form which is qualitativly comparable with usual cost functions,and from operating viewpoint is more favorable. to qualify such a procedure, it has been applied totwo minimum and nonminimum-phase chemical processes, and its performance is verified throughcomputer simulations.