| 鹰式一号波浪能装置频域运动分析与优化设计 |
| Motion Computation and Optimal Design of Wave Energy Converter “Sharp Eagle I” in Frequency Domain |
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| DOI： |
| 中文关键词: 波浪能发电装置 鹰式装置 能量转换 频域分析 优化设计 |
| 英文关键词:wave energy converter (WEC) sharp eagle power take-off frequency domain analysis optimal design |
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| 中文摘要: |
| 波浪能发电装置的波能转换通常分为两级能量转换，第一级能量转换是波浪作用下波浪能装置部件发生相对运动驱动PTO做功捕获波浪能；第二级能量转换为将捕获的波浪能转换为电能。其中一级波浪能转换系统的优化设计是提高波浪能装置能量转换效率重要手段和关键技术。波浪作用下波浪能装置的运动与PTO做功运动相互耦合和影响，本文通过对不同波浪要素环境下、不同PTO阻尼下波浪能装置的频域运动模拟，以迎波宽度比为尺度对波浪能装置的一级能量转换系统进行优化设计，获得波浪能装置的最优做功阻尼，为实型装置负载加载设计提供设计依据，提高波浪能装置能量转化效率。鹰式一号波浪能装置的实海况运动证明通过对一级能量转换系统的优化设计能够有效提高装置的发电效率和提高装置对波浪响应频带宽度。 |
| 英文摘要: |
| Traditionally, the wave energy converter system is divided into two phases. Wave energy is captured and stored in the first phases called Primary Energy Converter Process; and stored energy is converted into electric energy in the second phases called Secondary Energy Converter Process. The Optimal Design of Primary ECP functions as a key technique and important means to improve the efficiency of wave energy converter (WEC). This paper firstly computes the wave-induced coupled motion of WEC and power take-off (PTO) in frequency domain, and then calculates the optimal PTO damping for different wave elements based on maximize energy capture efficiency. With attack wave width ratio as the scale, an optimal design is carried out for the first phase energy converter of the wave power device, thus obtaining the optimal damping. The optimal PTO damping will provide the design foundation with the project prototype graded control strategy. The real sea state test of Eagle I demonstrated that it is feasible to improve the energy capture efficiency and broaden the bandwidth of WEC response frequency. |
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