Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : December 09, 2021 - December 10, 2021
This paper describes an energy harvesting technique that uses a wave receiving plate with piezoelectric elements. In this research, a resistive circuit is coupled to the piezoelectric elements. The optimum value of the resistive circuit that maximizes the amount of generated power has not been theoretically derived in previous research. Therefore, the purpose of this research is to derive the optimum value of the resistive circuit considering the effect of water on the receiving plate. In this research, the frequency of the wind wave was regarded as constant. The optimum value of the resistive circuit was derived based on impedance matching. In case where impedance matching condition cannot be satisfied, the optimum value was derived under the condition of maximizing the damping effect of the electrical system. The effectiveness of the optimum value was verified through simulations and experiments.
