MULTIVARIABLE NONLINEAR INTERNAL MODELCONTROL APPLIED TO A BIOREACTOR

摘要

Nonlinear control has emerged as an area of extensive research activity during the last decade. Animportant class of problems concerns the study of disturbance inputs for analysis and controllersynthesis purposes. This paper describes some aspects of the design of multivariable non-linearinternal model control in the case of continuous flowfermentation process with several types ofmodelling errors. The controller is based on the inverse of the process model and a non-linear filter.The approach used get rid of the assumption of full state feedback. Simulation results for a continuousstirred tank reactor illustrate the good behaviour of the control strategy.