A Generalized Homotopy Operator Approach For Potential-Based Realization Of Nonlinear Systems
2020 AMERICAN CONTROL CONFERENCE (ACC)(2020)
Abstract
This paper proposes a generalized homotopy operator approach to decompose a given differentiable vector field and obtain a potential-based dynamic realization. The obtained representation is then exploited for stability analysis of nonlinear systems. In contrast to the standard homotopy decomposition approach built on a contraction of differential forms with respect to a fixed radial vector field, the generalized homotopy operator approach generates a potential minimizing residual terms in the decomposition from a weighted sum of convex potentials. The decomposition yields a realization of the vector field into dissipative and conservative components, and the potential generating the dissipative component is used for stability analysis of nonlinear dynamical systems.
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Key words
potential minimizing residual terms,generalized homotopy operator approach,potential-based dynamic realization,standard homotopy decomposition approach,fixed radial vector field,differentiable vector field,nonlinear dynamical systems stability analysis
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