Document Type : Research Paper
Authors
1 Department of Mathematics, Gandhigram Rural Institute-Deemed University, Gandhigram - 624 302, Tamilnadu, India
2 Department of Mathematics, Gandhigram Rural Institute- Deemed University, Gandhigram - 624 302, Tamilnadu, India
Abstract
In this paper, the problems of robust stabilization and
$H_{infty}$ control for uncertain stochastic systems with
multiple time delays represented by the Takagi-Sugeno (T-S) fuzzy
model have been studied. By constructing a new Lyapunov-Krasovskii
functional (LKF) and using the bounding techniques, sufficient
conditions for the delay-dependent robust stabilization and $
H_{infty}$ control scheme are presented in terms of linear matrix
inequalities (LMIs). By solving these LMIs, a desired fuzzy
controller can be obtained which can be easily calculated by
Matlab LMI control toolbox. Finally, a numerical simulation is
given to illustrate the effectiveness of the proposed method.
Keywords
nonlinear stochastic systems with multiple state delays}, Nonlinear
Anal., {bf 68} (2008), 2147-2157.
systems}, Birkhäuser, Boston, 2002.
system and control theory}, SIAM, Philadelphia, PA, 1994.
time-delay systems via linear Takagi-Sugeno fuzzy models},
Fuzzy Sets and Systems, {bf 124} (2001), 213-229.
for a class of continuous-time fuzzy control systems},
Int. J. Control, {bf 64} (1996), 1069-1087.
of uncertain stochastic systems with multiple delays: an LMI approach},
Syst. Control. Lett., {bf 54} (2005), 547-555.
fuzzy systems with time delay}, IEEE Trans. Fuzzy Syst., {bf 13} (2005), 544-556.
Takagi-Sugeno fuzzy systems with state and input time delays},
Fuzzy Sets and Systems, {bf 160} (2009), 403-422.
IEEE Trans. Fuzzy Syst., {bf 14} (2006), 676-697.
stochastic time-delay systems}, Syst. Control. Lett., {bf 55} (2006), 101-111.
T-S fuzzy systems with time delays}, IEEE Trans. Fuzzy Syst.,
{bf 12} (2004), 236-249.
systems with mixed delays}, Acta Math. Vietnamica, {bf 35} (2010), 427-438.
Optim., {bf 36} (1998), 1504-1538.
multiple time delays}, Int. J. Syst. Sci., {bf 38} (2007), 351-360.
systems with time-delay}, Nonlinear Anal. TMA., {bf 71} (2009), 2855-2865.
stochastic fuzzy systems with time-varying delay}, IET Control Theory
Appl., {bf 1} (2007), 1075-1085.
systems with norm bounded uncertainty based on LMI approach},
Iranian Journal of Fuzzy Systems, textbf{6} (2009), 1-14.
differential equations}, Dordrecht, The Netherlands: Kluwer, 1992.
$H_{infty}$ control for T-S fuzzy systems}, Automatica, {bf 41} (2005), 1651-1656.
Horwood, Chichester, 1997.
stabilization of uncertain state-delayed systems},
Int. J. Control, {bf 74} (2001), 1447-1455.
non-linear systems with mixed time-varying delays}, Int. J. Control, {bf 82} (2009), 1889-1898.
under sampled measurements}, Comput. Math. Appl., {bf 46} (2003), 705-717.
observers: relaxed stability conditions and LMI-based designs},
IEEE Trans. Fuzzy Syst., {bf 6} (1998), 250-265.
and control}, IEEE Trans. Syst. Man Cybern., {bf 15} (1985), 116-132.
uncertain stochastic fuzzy systems with time-delays},
IEEE Trans. Syst. Man, Cybern. A, {bf 34} (2004), 570-576.
of nonlinear systems: stability and design issues},
IEEE Trans. Fuzzy Syst., {bf 4} (1996), 14-23.
uncertain nonlinear system}, Syst. Control. Lett., {bf 19} (1992), 139-149.
systems with state delay}, IEEE Trans. Automat.
Contr., {bf 47} (2002), 2089-2094.
time-delay fuzzy systems via output feedback controllers},
IEEE Trans. Fuzzy Syst., {bf 13} (2005), 82-93.
for uncertain stochastic time-delay systems},
Int. J. Robust Nonlinear Control, textbf{20} (2010), 1852-1865.
uncertain delays}, IEEE Trans. Fuzzy Syst., {bf 10} (2002), 92-97.
stabilizing controllers for Takagi-Sugeno fuzzy time-delay systems},
IEEE Trans. Fuzzy Syst., {bf 15} (2007), 828-839.
delayed T-S fuzzy systems: a delay partitioning approach},
IEEE Trans. Fuzzy Syst., {bf 17} (2009), 750-762.
control for uncertain fuzzy hyperbolic systems with multiple delays},
Progr. Natur. Sci., {bf 18} (2008), 97-104.
class of nonlinear discrete-time systems with multiple time delays},
IEEE Trans. Fuzzy Syst., {bf 15} (2007), 453-469.
for uncertain stochastic fuzzy systems with multiple time delays},
IEEE Trans. Syst., Man, Cybern. B, Cybern., {bf 38} (2008), 126-140.
for stochastic fuzzy systems with time delays}, Fuzzy Sets and Systems, {bf 158} (2007), 2238-2250.
bibitem{ZFLX} S. Zhou, G. Feng, J. Lam and S. Xu, {it Robust $H_{infty}$ control for
discrete-time fuzzy systems via basis-dependent Lyapunov functions},
Information Sciences, {bf 174} (2005), 197-217.
systems via basis-dependent Lyapunov-Krasovskii function},
Fuzzy Sets and Systems, {bf 151}(2005), 139-153.