Lagrange Stabilization of Pendulum-like Systems: A Pseudo H-infinity Control Approach

Details Lagrange Stabilization of Pendulum-like Systems: A Pseudo H-infinity Control Approach Lagrange Stabilization of Pendulum-like Systems: A Pseudo H-infinity Control Approach

2011-07-28

arxiv.org/abs/1107.5615v1

Computer Science

Systems and Control

Scientific paper

This paper studies the Lagrange stabilization of a class of nonlinear systems whose linear part has a singular system matrix and which have multiple periodic (in state) nonlinearities. Both state and output feedback Lagrange stabilization problems are considered. The paper develops a pseudo H-infinity control theory to solve these stabilization problems. In a similar fashion to the Strict Bounded Real Lemma in classic H-infinity control theory, a Pseudo Strict Bounded Real Lemma is established for systems with a single unstable pole. Sufficient conditions for the synthesis of state feedback and output feedback controllers are given to ensure that the closed-loop system is pseudo strict bounded real. The pseudo H-infinity control approach is applied to solve state feedback and output feedback Lagrange stabilization problems for nonlinear systems with multiple nonlinearities. An example is given to illustrate the proposed method.

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