Conceptual Design and Simulation of a Self-Adjustable Heaving Point Absorber Based Wave Energy Converter
Conceptual Design and Simulation of a Self-Adjustable Heaving Point Absorber Based Wave Energy Converter
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DOI：
10.3390/en13081997
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发表时间：
2020-04
期刊：
影响因子：
3.2
通讯作者：
Tunde Aderinto;Hua Li
中科院分区：
文献类型：
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作者：
Tunde Aderinto;Hua Li
许多研究人员提出并发展了不同的概念和方法来获取海浪能量。本文提出了一种新的自调节波浪能转换器的概念，它通过使用海水压载和卸压载来改变其惯性。压载和卸压载的触发由临界波浪周期控制。因此，自调节波能转换器能够在两个不同的谐振带宽下与海浪谐振地相互作用。本文利用墨西哥湾某测点10年真实的波浪资料，以逐时分辨率确定了波能转换器的临界波周期和其它参数。计算了自调式波浪能转换器的全年能量性能，并与相似尺寸的不可调式波浪能转换器进行了比较。为了确定自调式波浪能转换器在真实的海浪数据下的生存能力，对自调式波浪能转换器进行了结构分析，包括静力分析和疲劳分析。结果表明，自调式波浪能转换器比非自调式波浪能转换器能够捕获更多的能量，并且能够在杂乱的海浪条件下生存。
Different concepts and methods have been proposed and developed by many researchers to harvest ocean wave energy. In this paper, a new self-adjustable wave energy converter concept is presented, which changes its inertia through ballasting and de-ballasting using sea water. The trigger of ballasting and de-ballasting is controlled by the critical wave period. Therefore, the self-adjustable wave energy converter is able to interact at resonance with the ocean waves at two different resonant bandwidths. Ten years real wave data with hourly resolution from a selected location in Gulf of Mexico was used in this paper to decide the critical wave period and other parameters of the wave energy converter. The annual energy performance of the self-adjustable wave energy converter was also estimated and compared with non-adjustable wave energy converter with similar dimensions. Structural analysis including both static and fatigue analysis was performed on the self-adjustable wave energy converter to determine its survivability with the real ocean wave data. The results show that the self-adjustable wave energy converter is able to capture more energy than non-adjustable wave energy converter, and is able to survive during the hash ocean wave conditions.