Iranian Journal of Electrical & Electronic Engineering
IJEEE
Engineering & Technology
http://ijeee.iust.ac.ir
18
agent2
1735-2827
2383-3890
10.22068/IJEEE
en
jalali
1395
3
1
gregorian
2016
6
1
12
2
online
1
fulltext
en
Singular Perturbation Theory in Output Feedback Control of Pure-Feedback Systems
3-Nonlinear Control Systems
Nonlinear Control Systems
Research Paper
Research Paper
<div style="text-align: justify;">This paper studies output feedback control of pure-feedback systems with immeasurable states and completely non-affine property. Since availability of all the states is usually impossible in the actual process, we assume that just the system output is measurable and the system states are not available. First, to estimate the immeasurable states a state observer is designed. Relatively fewer results have been proposed for pure-feedback systems because the cascade and non-affine properties of pure-feedback systems make it difficult to find the explicit virtual controls and actual control. Therefore, by employing the singular perturbation theory in back-stepping control procedure, the virtual/actual control inputs are derived from the solutions of a series of fast dynamical equations which can avoid the “explosion of complexity’’ inherently existing in the conventional back-stepping design. The stability of the resulting closed-loop system is proved by Tikhonov’s theorem in the singular perturbation theory. Finally, the detailed simulation results are provided to demonstrate the effectiveness of the proposed controller, which can overcome the non-affine property of pure-feedback systems with lower complexity and fewer design parameters.</div>
Nonlinear Pure-Feedback Systems, Output Feedback Control, State Observer, Singular Perturbation Theory
105
112
http://ijeee.iust.ac.ir/browse.php?a_code=A-10-1666-1&slc_lang=en&sid=en
M.
Asadi
asadi.mehr77@gmail.com
`180031947532846005274`

180031947532846005274
No
Shahrood University of Technology, Shahrood, Iran.
H.
Toossian Shandiz
htshandiz@shahroodut.ac.ir
`180031947532846005275`

180031947532846005275
Yes
Shahrood University of Technology, Shahrood, Iran.