Output feedback control of uncertain nonlinear systems

Citation
W. Wu et al., Output feedback control of uncertain nonlinear systems, J CHEM EN J, 34(3), 2001, pp. 340-350
Citations number
20
Categorie Soggetti
Chemical Engineering
Journal title
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
ISSN journal
00219592 → ACNP
Volume
34
Issue
3
Year of publication
2001
Pages
340 - 350
Database
ISI
SICI code
0021-9592(200103)34:3<340:OFCOUN>2.0.ZU;2-Z
Abstract
This paper concerns the nonlinear observer-based control design, which is m ainly based on Fliess(1) linearization and parametrized transformation for uncertain nonlinear processes. The proposed control scheme allows us to adj ust the rate of tracking and the decay of observer error for regulating the system output. Through the valid selection of tuning parameters of the out put feedback controller, the bounded output tracking is achieved and its tu ning scheme is robust against model uncertainties. The effectiveness of our design method is demonstrated by a simulation example of the control of an exothermic CSTR with multiple steady states. Under significant observer-in itialization errors and unstable operating conditions of designs, the satis factory output regulation and disturbance rejection are obtained.