Kane の方程式を用いた浮体式ポイントアブソーバー型波力発電装置の定式化と波浪中運動評価

• Published in: 日本船舶海洋工学会論文集 Vol. 35; pp. 65 - 76
• Main Authors: 藤原, 敏文, 梅田, 隼, 二村, 正, 谷口, 友基, 片山, 徹
• Format: Journal Article
• Language: Japanese
• Published: 公益社団法人 日本船舶海洋工学会 2022
• ISSN: 1880-3717; 1881-1760
• DOI: 10.2534/jjasnaoe.35.65

In this paper, we derive the equations of longitudinal motion for a floating point absorber type wave energy converter (FPAWEC) by Kane's equation. Since FPAWECs have a nonholonomic constraint, we selected Kane's equation which is based on the principle of virtual power. The time-domain motion equations of the FPAWEC with several control strategies were developed and its motion evaluations were conducted in regular and irregular waves. The motion evaluation results were reasonably consistent with the measured ones, both in regular and irregular waves. The dominant pitch motion in irregular waves was observed around pitch natural frequency. Using the derived equations, we investigated the pitch moment components and found that the pitch moment on the float had the largest contributions to pitching motion with the pitch natural frequency.