提出一种垂荡姿态自持式波能装置,建立装置的运动方程,基于势流理论构建其水动力分析数值模型并进行验证,加载常值、线性动力输出（PTO）,计算发电功率及俘获宽度比,对其参数进行优化。结果表明,在其他参数不变时,装置的平均输出功率及俘获宽度比随PTO、浮子的半径和吃水、横杆长度、横杆倾角的增大先增大后减小,随浮子与横杆质量配比的增大影响较小。当横竖杆长度比为0.5,即横杆长度为4.8 m时,装置的平均输出功率和俘获宽度比最大;当横杆倾角为40°时,装置的获能效果最好。
Abstract
In this paper, a self-sustaining wave energy device with heave attitude is proposed, and the motion equation of the device is established. Based on the potential flow theory, the hydrodynamic analysis numerical model is constructed and verified. The constant and linear PTO are loaded, the power generation and capture width ratio are calculated, and the parameters are optimized. The results show that when other parameters remain unchanged, the average output power and capture width ratio of the device increase first and then decrease with the increase of PTO, the radius and draft of the float, the length of the horizontal bar and the inclination angle of the horizontal bar, while the increase of the mass ratio of the float to the horizontal bar has little effect. When the length ratio of the horizontal and vertical rods is 0.5, that is, the length of the horizontal rod is 4.8 m, the average output power and capture width ratio of the device are the largest. When the inclination angle of the crossbar is 40°, the device has the best energy acquisition effect.
关键词
波浪能转换 /
波能 /
能量吸收 /
振荡浮子 /
垂荡姿态自持
Key words
wave energy conversion /
wave power /
energy absorption /
oscillating buoy /
heave attitude self-sustaining
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基金
国家自然科学基金联合基金重点项目（U22A20216）; 山东省自然科学基金（ZR2021ZD23）; 国家自然科学基金（52271297）; 中国工程院战略研究与咨询项目（2022-DFZD-36）
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