杨雪儿, 彭伟, 张颖男, 等. 不同动力输出系统下多浮体波浪能转换装置性能研究[J]. 中国舰船研究, 2024, 19(X): 1–9. doi: 10.19693/j.issn.1673-3185.03623
引用本文: 杨雪儿, 彭伟, 张颖男, 等. 不同动力输出系统下多浮体波浪能转换装置性能研究[J]. 中国舰船研究, 2024, 19(X): 1–9. doi: 10.19693/j.issn.1673-3185.03623
YANG X E, PENG W, ZHANG Y N, et al. Performance study of a multi-body wave energy converter with different power take-off systems[J]. Chinese Journal of Ship Research, 2024, 19(X): 1–9 (in Chinese). doi: 10.19693/j.issn.1673-3185.03623
Citation: YANG X E, PENG W, ZHANG Y N, et al. Performance study of a multi-body wave energy converter with different power take-off systems[J]. Chinese Journal of Ship Research, 2024, 19(X): 1–9 (in Chinese). doi: 10.19693/j.issn.1673-3185.03623

不同动力输出系统下多浮体波浪能转换装置性能研究

Performance study of a multi-body wave energy converter with different power take-off systems

  • 摘要:
    目的 开发利用波浪能能够缓解能源短缺和环境污染的压力,波能装置与浮式防波堤结合是实现成本分摊、功能互补的有效方案。对一种兼具防波效果的多浮体波浪能转换装置进行动力输出系统控制优化。
    方法 应用OpenFOAM程序构建数值波浪水槽,模拟了5种不同PTO阻尼(线性阻尼、定常阻尼、线性弹簧阻尼、速度平方阻尼、跳跃阻尼)作用下多浮体式波浪能转换装置与波浪的相互作用,比较不同PTO类型作用下波能装置的能量俘获效率和消波性能。
    结果 多浮体装置的波能俘获效率最高可达52.6%,线性弹簧阻尼和跳跃阻尼作为基于线性阻尼的优化,对波浪能装置的波能俘获和防浪消波效果有一定程度的影响,综合考虑波能俘获和防浪消波作用,线性阻尼比线性弹簧阻尼和跳跃阻尼更有优势。
    结论 找到了定常阻尼、速度平方阻尼等PTO的优势波浪区间,对多浮体的PTO阻尼设置优化有一定参考意义。

     

    Abstract:
    Objectives The utilization of wave energy can help alleviate the global energy crisis and environmental problems. Combining wave energy converter (WEC) with floating breakwaters is an effective way to reduce costs and achieve complementary functions. The control and optimization of the power output system is carried out for a multi-body WEC with wave protection effects.
    Methods To study the interaction of the multi-body WEC with waves, a numerical wave flume is constructed using the OpenFOAM program. The experiments simulate the interaction between the converter and waves under different power take-off (PTO) strategies, namely linear, constant, linear spring, velocity-squared, and snap through PTO systems. The energy capture efficiency and wave dissipation performance of the wave energy converter under these PTO systems are compared.
    Results The results show that the wave energy capture efficiency of the multi-body WEC can reach up to 52.6%. Linear spring and snap through PTO systems, which are based on the optimization of linear PTO, have a certain degree of influence on the WEC and wave dissipation effect of the wave energy device. Linear PTO is more advantageous than linear spring and snap through ones when considering both wave energy capture and wave dissipation effects.
    Conclusions The study identifies the advantageous wave intervals of PTO systems such as constant damping and velocity-squared damping, which can serve as a reference for optimizing PTO system settings for multi-floating bodies.

     

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