Absolute Stability of Nonlinear Control Systems - download pdf or read online

By Xiao-Xin Liao

ISBN-10: 9401706085

ISBN-13: 9789401706087

ISBN-10: 9401706107

ISBN-13: 9789401706100

This quantity offers an summary of a few fresh advancements on absolutely the balance of nonlinear regulate systems.
bankruptcy 1 introduces the most instruments and the relevant effects utilized in this e-book, corresponding to Lyapunov services, K-class capabilities, Dini-derivatives, M-matrices and the valuable theorems on international balance. bankruptcy 2 offers absolutely the balance conception of self reliant keep an eye on structures and the well known Lurie challenge. bankruptcy three supplies a few easy algebraic useful and adequate stipulations for absolutely the balance of numerous distinctive keep watch over structures. bankruptcy four discusses nonautonomous and discrete keep watch over platforms. bankruptcy five bargains with absolutely the balance of keep watch over structures with m nonlinear keep watch over phrases. bankruptcy 6 devotes itself to absolutely the balance of keep watch over structures defined through useful differential equations.
The publication concludes with an invaluable bibliography.
For utilized mathematicians, and engineers whose paintings consists of regulate systems.

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Sample text

1. 1) is globally stable. The zero solution of (2. 1. •AI' the zero solution of (2. 1. 1) is globally stable. e (or ahsolutely stahle in [O,kJ)? Lurie didn't find these necessary and sufficient conditions. When studying the absolute stability of (2. 1. 1), we usually make the following classification. We say that (2. 1. 1) is a direct control system. or the basic case (principal case) if Re A(A) < O. that is. A is sta bie. In other words. the eigenvalues of A have negative real parts only. 1. 1) i8 a indirect control system.

Proo/. taking /(a) = 1) f(1 Suppose there exists an eigenvalue Ao such that Re Ao (A) >0. By (O < E« 1). 1) becomes + dxT)x. 2) « 1. the coefficient matrix of (2. 1. 2) must have an eigenvalue lo such that Re lo > o. This is Since eigenvalues depend on coefficients continuously. for O < E inconsistent with the fact that the zero solution of (2. 1. 1) is absolutely stable. 29 2. 2. Neceseary and Sufficient Conditiona for AbeoIute Stabi6ty . 1. 2) is expressed as If cTb = . -b/ ;-1 + E~c;b, < O. ;-1 > O.

5) implies that S(x,tI) ~O. )) ~ - a/(O')tI is negative definite for n. Therefore, from Theorem 2. 2. 1 it follows that the conclusion is true. • 44 2. AUTONOMOUSOONTROLSYSTEMS Sup~ k = Corollary 2. 3. 4. + 00 anii 0111! 01 the lolWwing condttions hold: 1) 2) (,B~Tc + Pb) T R- 1( ,B~Tc + Pb) + ,BcTb < (~~TC + Pb) T R-I C< O [( ,B~Tc + Pb) T R-1( ,B~Tc + Pb) + {JcTb J~ O, (,B~Tc + Pb) T R-I C ~ O [( anii ,B~Tc + PbrR-lcr - (cTR-1c)[( 3) O, ,B~Tc + PbrR-lc r - (cTR-I C )[( ,B~Tc Then there exists a > anii + Pbr R-1( ,B~Tc + Pb) + {JcTb]> o.

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Absolute Stability of Nonlinear Control Systems by Xiao-Xin Liao

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