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Enhancing energy harvesting by coupling monostable oscillators

Author

Listed:
  • Julián I. Peña Rosselló

    (Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR)

  • Horacio S. Wio

    (Instituto de Física de Cantabria (IFCA)

  • Roberto R. Deza

    (Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR)

  • Peter Hänggi

    (Universität Augsburg, Institut für Physik, Universitätstrasse 1
    Nanosystems Initiative Munich, Schellingstrasse 4)

Abstract

The performance of a ring of linearly coupled, monostable nonlinear oscillators is optimized towards its goal of acting as energy harvester – through piezoelectric transduction – of mesoscopic fluctuations, which are modeled as Ornstein-Uhlenbeck noises. For a single oscillator, the maximum output voltage and overall efficiency are attained for a soft piecewise-linear potential (providing a weak attractive constant force) but they are still fairly large for a harmonic potential. When several harmonic springs are linearly and bidirectionally coupled to form a ring, it is found that counter-phase coupling can largely improve the performance while in-phase coupling worsens it. Moreover, it turns out that few (two or three) coupled units perform better than more.

Suggested Citation

  • Julián I. Peña Rosselló & Horacio S. Wio & Roberto R. Deza & Peter Hänggi, 2017. "Enhancing energy harvesting by coupling monostable oscillators," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 90(2), pages 1-5, February.
    • Handle: RePEc:spr:eurphb:v:90:y:2017:i:2:d:10.1140_epjb_e2017-70703-x
    DOI: 10.1140/epjb/e2017-70703-x
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    Cited by:

    1. Tingting Zhang & Yanfei Jin, 2024. "Stochastic optimal control of a tri-stable energy harvester with the P-SSHI circuit under colored noise," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 97(1), pages 1-13, January.

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    Keywords

    Statistical and Nonlinear Physics;

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