Abstract
Active-resonance control is an efficient utilization technology for the ocean wave energy. A Resonant Inversed-Pendulum Wave Energy Converter (RIPWEC) that can regulate the natural frequency according to the variation of wave period is introduced. The adjustment of natural vibration frequency of the RIPWEC is realized by its mass-position-adjusting mechanism. This paper reveals the resonance characteristics of the RIPWEC and its power control strategy by means of theoretical modeling, numerical simulation, and field experiments. Herein, the natural frequency adjusting range, the capture width of multi-frequency resonance, the resonant capture width ratio and the resonant generating efficiency of the physical model and the maximum power tracking algorithm are investigated specifically. The research results can contribute to the RIPWEC theoretical design and the engineering practice.
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