Section 4.5 Non-autonomous Systems (Lyapunov Stability)

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Nonlinear Systems Analysis Lecture Note Section 4.5 Non-autonomous Systems (Lyapunov Stability) Feng-Li Lian NTU-EE Sep04 – Jan05 © Feng-Li Lian 2004 Ch4.5-2 Nonlinear Systems Analysis Outline Introduction (L8) Autonomous Systems (4.1, L8, L9) Basic Stability Definitions Lyapunov’s stability theorems The Invariance Principle (4.2, L9+L10) LaSalle’s theorem Linear Systems and Linearization (4.3, L10) Comparison Functions (4.4, L11) Non-autonomous Systems (4.5, L11) Linear Time-Varying Systems & Linearization (4.6, L11+0.5) Converse Theorems (4.7, L12) Boundedness & Ultimate Boundedness (4.8, L12) Input-to-State Stability (4.9, L13)

Transcript of Section 4.5 Non-autonomous Systems (Lyapunov Stability)

Page 1: Section 4.5 Non-autonomous Systems (Lyapunov Stability)

Nonlinear Systems Analysis

Lecture Note

Section 4.5

Non-autonomous Systems (Lyapunov Stability)

Feng-Li LianNTU-EE

Sep04 – Jan05

© Feng-Li Lian 2004

Ch4.5-2

Nonlinear Systems Analysis

Outline

Introduction (L8)Autonomous Systems (4.1, L8, L9)• Basic Stability Definitions

• Lyapunov’s stability theorems

The Invariance Principle (4.2, L9+L10)• LaSalle’s theorem

Linear Systems and Linearization (4.3, L10)Comparison Functions (4.4, L11)Non-autonomous Systems (4.5, L11)Linear Time-Varying Systems & Linearization (4.6, L11+0.5)Converse Theorems (4.7, L12)Boundedness & Ultimate Boundedness (4.8, L12)Input-to-State Stability (4.9, L13)

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Nonlinear Systems Analysis

E.P. of Non-Autonomous Systems (4.5)

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Nonlinear Systems Analysis

E.P. of Non-Autonomous Systems

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Nonlinear Systems Analysis

E.P. of Non-Autonomous Systems

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Nonlinear Systems Analysis

Stability and Asymptotic Stability

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Stability and Asymptotic Stability

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Stability and Asymptotic Stability

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Stability and Asymptotic Stability

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Example 4.17: Stability Case

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Example 4.17: Stability Case

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Example 4.17: Stability Case

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Nonlinear Systems Analysis

Example 4.18: Asymp. Stability Case

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Example 4.18: Asymp. Stability Case

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Nonlinear Systems Analysis

Definitions of Stability, etc.

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Definitions of Stability, etc.

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Lemma 4.5

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Lemma 4.5

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Definition 4.5

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Theorem 4.8: U.S. & Proof

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Theorem 4.8: U.S. & Proof

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Theorem 4.8: U.S. & Proof

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Theorem 4.8: U.S. & Proof

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Theorem 4.8: U.S. & Proof

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Theorem 4.8: U.S. & Proof

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Theorem 4.9: U.A.S. & G.U.A.S.

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Theorem 4.9: U.A.S. & G.U.A.S.

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Theorem 4.9: U.A.S. & G.U.A.S.

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Theorem 4.9: U.A.S. & G.U.A.S.

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Nonlinear Systems Analysis

Theorem 4.9: U.A.S. & G.U.A.S.

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Theorem 4.9: U.A.S. & G.U.A.S.

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Theorem 4.9: U.A.S. & G.U.A.S.

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Nonlinear Systems Analysis

PD, ND & US, UAS, GUAS

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Nonlinear Systems Analysis

PD, ND & US, UAS, GUAS

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Nonlinear Systems Analysis

Theorem 4.10: E.S. & G.E.S.

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Theorem 4.10: E.S. & G.E.S.

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Theorem 4.10: E.S. & G.E.S.

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Nonlinear Systems Analysis

Example 4.19: G.U.A.S.

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Example 4.20: G.E.S.

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Example 4.20: G.E.S.

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Example 4.20: G.E.S.

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Example 4.21: G.E.S. of LTV System

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Example 4.21: G.E.S. of LTV System