Enhancing the performance of a bistable energy harvesting device via the cross-entropy method

Americo Cunha Jr (1)

1 UERJ - Universidade do Estado do Rio de Janeiro [Brasil] = Rio de Janeiro State University [Brazil] = Université d'État de Rio de Janeiro [Brésil]

This work deals with the formulation and numerical solution of a nonlinear optimization problem, with discontinuous constraint, in the context of energy harvesting. This optimization problem, which seeks to find a suitable configuration of parameters that maximize the electrical power recovered by a bi-stable energy harvesting device, is formulated in terms of the harvesting dynamical system response and a classifier obtained from 0-1 test for chaos. A stochastic strategy of solution, combining penal-ization and cross-entropy (CE) method is proposed and tested numerically. The results illustrate the effectiveness of the proposed optimization strategy when compared to a reference solution obtained with a standard exhaustive search in a very fine grid.

Domaines: Vibrations [physics.class-ph]; Dynamique Chaotique [nlin.CD]; Probabilités [math.PR]; Statistiques [math.ST]; Génie mécanique [physics.class-ph]

Americo Cunha Jr. Enhancing the performance of a bistable energy harvesting device via the cross-entropy method. 2017. ⟨hal-01531845v1⟩