|A Robust Adaptive Controller for Hammerstein Nonlinear Systems
Ping Yuan, Bi Zhang*, and Zhi-Zhong Mao
International Journal of Control, Automation, and Systems, vol. 15, no. 2, pp.656-667, 2017
Abstract : "Hammerstein nonlinear systems have appeared useful in modeling nonlinear processes encountered in
engineering practice. Control algorithms may lead to unsatisfactory performance if the parametric model does
not agree with the plant. To this end, this paper proposes a new robust adaptive control approach for discretetime
Hammerstein nonlinear systems which are more close to some industrial plants. The adaptive control law and
recursive parameter estimation are updated by introducing the estimate of the model error as a feedback. Theoretical
results show that parameter estimation convergence and closed-loop system stability can be guaranteed under mild
conditions. Simulation examples including a continuous stirred tank reactor (CSTR) system are given to show the
effectiveness of the obtained results."
Adaptive control, convergence, CSTR system, Hammerstein nonlinear systems, stability.