剛体振り子とDCモータを用いた風波のエネルギ回生の効率最大化

抄録

This paper describes the wind wave energy harvesting using a rigid pendulum and a DC motor. Many types of energy harvesting techniques have been studied thus far. These methods extract vibration energy as electrical energy through electromechanical transducers. In this research, a DC motor was used as an electromechanical transducer. In previous studies on the wind wave energy harvesting using a rigid pendulum and a DC motor, the amount of generated power has been evaluated experimentally and the optimum values of the electrical circuit that maximizes the amount of power generation has not been theoretically derived. On the other hand, in energy harvesting using electromagnetic induction, the optimum values of the device have been derived; however, the effect of the characteristic impedance of water has not been considered. Therefore, we obtained the optimum values of the device considering the effect of the characteristic impedance of water. We derived the optimum values in two cases: one is the case where the frequency of the wind wave is constant, and the other is the case of random excitation. The power consumption of the resistor was regarded as the harvested energy in this research. The optimum values of the resistive circuit that maximizes the amount of the harvested energy were derived in two cases, and the effectiveness was verified through simulations and experiments.