WAVE POWER GENERATION

摘要

PURPOSE: A wave power generation device is provided to reduce a number of parts by operating an electricity generator with a second working fluid moved by a second expansion part, thereby reducing installation costs. CONSTITUTION: A wave power generation device comprises a first expansion part (20), a second expansion part, a first working fluid, a second working fluid, and a power generation part (70). The length of the first expansion part is changed by waves. The second expansion part is positioned inside the first expansion part. The length of the second expansion part is changed by the expansion motion of the first expansion part. The first working fluid is introduced between the first and second expansion parts to generate buoyancy and moves into or out from the first expansion part according to the expansion motion of the first expansion part. The second working fluid moves into or out from the second expansion part according to the expansion motion of the second expansion part. The power generation part generates electricity using the movement of the second working fluid.