Parametric pendulum based wave energy converter

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Heriot-Watt University

Abstract

The paper investigates the dynamics of a novel wave energy converter based on the parametrically excited pendulum. The herein developed concept of the parametric pendulum allows reducing the influence of the gravity force thereby significantly improving the device performance at a regular sea state, which could not be achieved in the earlier proposed original point-absorber design. The suggested design of a wave energy converter achieves a dominant rotational motion without any additional mechanisms, like a gearbox, or any active control involvement. Presented numerical results of deterministic and stochastic modeling clearly reflect the advantage of the proposed design. A set of experimental results confirms the numerical findings and validates the new design of a parametric pendulum based wave energy converter. Power harvesting potential of the novel device is also presented.

Details

Original languageEnglish
Pages (from-to)504-515
Number of pages12
JournalMechanical Systems and Signal Processing
Volume99
Early online date6 Jul 2017
Publication statusPublished - 15 Jan 2018

Keywords

  • Electromagnetic generator, Energy harvesting, Mathieu equation, Parametric pendulum, Power take-off, Reduced gravity, Wave energy, Wave energy converter