Approach to robust multivariable combustion control design

Abstract Two robust controller structures are presented. The first is a multivariable proportional-integral output feedback pole assignment controller and the second is a robust servomechanism scheme. These two structures affect the process in quite different ways and therefore can be combined to give more robust control than each controller separately. The mentioned structure was used for combustion control, which represents a multivariable and nonlinear problem with time delay. The simulation results of a closed-loop control system are presented and discussed. The whole procedure of designing robust multivariable control was supported with the corresponding computer-aided control system design tools.