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Hydrodynamic Performance of an Array of Wave Energy Converters Integrated with a Pontoon-Type Breakwater

机译：集成浮桥式防波堤的一系列波能转换器的流体力学性能

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摘要

The cost of wave energy converters (WECs) can be reduced significantly by integrating WECs into other marine facilities, especially in sea areas with a mild wave climate. To reduce the cost and increase the efficiency, a hybrid WEC system, comprising a linear array (medium farm) of oscillating buoy-type WECs attached to the weather side of a fixed-type floating pontoon as the base structure is proposed. The performance of the WEC array is investigated numerically using a boundary element method (BEM) based on the linear potential flow theory. The linear power take-off (PTO) damping model is used to calculate the output power of the WEC array. The performance of the WEC array and each individual WEC device is balanced by using the mean interaction factor and the individual interaction factor. To quantify the effect of the pontoon, the hydrodynamic results of the WEC arrays with and without a pontoon are compared with each other. Detailed investigations on the influence of the structural and PTO parameters are performed in a wide wave frequency range. Results show that the energy conversion efficiency of a WEC array with a properly designed pontoon is much higher than that without a pontoon. This integration scheme can achieve the efficiency improvement and construction-cost reduction of the wave energy converters.
机译：通过将WEC集成到其他海洋设施中，尤其是在波浪气候温和的海域中，可以大大降低波浪能转换器（WEC）的成本。为了降低成本并提高效率，提出了一种混合WEC系统，其包括连接到固定型浮船的天气侧的振荡浮标型WEC的线性阵列（中等规模）。基于线性势流理论，使用边界元方法（BEM）对WEC阵列的性能进行了数值研究。线性功率输出（PTO）阻尼模型用于计算WEC阵列的输出功率。通过使用平均交互因子和单个交互因子，可以平衡WEC阵列和每个单个WEC设备的性能。为了量化浮桥的效果，将带有和不带有浮桥的WEC阵列的水动力结果相互比较。在较宽的波频率范围内对结构和PTO参数的影响进行了详细研究。结果表明，带有适当浮桥的WEC阵列的能量转换效率要比没有浮桥的WEC阵列高得多。该集成方案可以实现波能转换器的效率提高和建筑成本降低。

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