TY - JOUR
T1 - Finite difference-based output feedback control for a class of nonlinear systems with sampling time-delay
AU - Wu, Wei
N1 - Funding Information:
This work is partly supported by the National Science Council of Republic of China under grant number NSC 95-2221-E-224-088.
PY - 2009/5
Y1 - 2009/5
N2 - Within the full linearization framework, the continuous-time observer-based nonlinear control should be determined by solving the implicit, nonlinear ordinary-differential-equation (ODE). To construct the discrete-time nonlinear control, the calculus of finite difference is used such that the finite difference-based output feedback control scheme can be straightforward synthesized since the higher-order difference term is truncated. The nonlinear control methodology with the one-time-delay-ahead prediction effort can ensure the stable output regulation under the specification of nonlinearity bounds. Through the discrete-time Lyapunov function analysis, the presented corollaries show that the sampling time-delay and nonlinearities effects dominate the closed-loop stability and performance. Finally, the proposed control method is successfully demonstrated on an exothermic chemical reactor system with the sampling time-delay and inlet perturbations.
AB - Within the full linearization framework, the continuous-time observer-based nonlinear control should be determined by solving the implicit, nonlinear ordinary-differential-equation (ODE). To construct the discrete-time nonlinear control, the calculus of finite difference is used such that the finite difference-based output feedback control scheme can be straightforward synthesized since the higher-order difference term is truncated. The nonlinear control methodology with the one-time-delay-ahead prediction effort can ensure the stable output regulation under the specification of nonlinearity bounds. Through the discrete-time Lyapunov function analysis, the presented corollaries show that the sampling time-delay and nonlinearities effects dominate the closed-loop stability and performance. Finally, the proposed control method is successfully demonstrated on an exothermic chemical reactor system with the sampling time-delay and inlet perturbations.
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U2 - 10.1016/j.jprocont.2008.11.010
DO - 10.1016/j.jprocont.2008.11.010
M3 - Article
AN - SCOPUS:64849111417
SN - 0959-1524
VL - 19
SP - 906
EP - 913
JO - Journal of Process Control
JF - Journal of Process Control
IS - 5
ER -