Nonlinear robust control for continuous stirred tank reactor system

This article considers the design of nonlinear robust controller with high gain observer(ONRC) for single-input/single-output system of continuous stirred-tank reactor(CSTR) based on a nonlinear robust theory.To facilitate its implementation,a simple parameter tuning method was suggested.Through comparison of simulations with NRC and sliding model controller(SMC),it was found that the proposed schemes ONRC appeared to restrain the system uncertainties and disturbances better.Monte-Carlo experiments also suggested the better robustness of ONRC.