Numerical simulation of wave energy converter based on stochastic resonance and variable magnetization

This paper introduces a wave energy converter (WEC) with stochastic resonance and variable magnetization system in order to effectively obtain electric energy from the ocean wave. Because nonlinear oscillation systems generally have wider frequency range in comparison with linear one, the proposed WEC is suitable for the power generation from ocean waves. Moreover, a numerical analysis method is also introduced to evaluate the characteristics of the proposed WEC. From the numerical simulations, it is shown that the proposed WEC has wider operational frequency range and the frequency characteristic can be changed by the field current.