摘要
論文題目 : 擺錘式波浪能量轉換器之研究
研 究 生 : 謝明諳
指導教授 : 陳世雄
在現今全球的波浪發電發展下，對於鄰海、海島型國家擁有天然的波浪資源，蘊藏著巨大的能量，因此本研究之目的為設計一種擺錘式波浪發電系統來擷取獲得波浪能。擺錘式波能轉換器是利用波浪上下運動的振幅能造成偏心擺錘旋轉，運用擺錘轉動產生機械能進而帶動發電機發電的一種發電方式。本研究重點為擺錘式波能轉換器的箱體外部造型設計以及在不同的波浪形式、波浪高度下對於擺錘運動軌跡之間的差異、能量轉換之效率以及擺錘式波浪發電的輸出功率比較，對於波浪形態做四種分析，分別為A/B (上升波時間A/下降波時間B)為1/7、2/6、3/5、4/4等四種型態，固定波浪週期8秒、波浪長度為20公尺、波高變化0.5公尺至2公尺，並使用MATLAB進行分析計算，對照討論各個參數影響擺錘的運動模式，結果顯示在不同的波高及四種設定的波形下運動模式，會有不同的輸出結果。其中在同樣的波高H下，以A/B 為 1/7具有較大的功率輸出量，A/B 為 4/4波型下，功率的輸出最小。參數H的影響比較明顯，由H = 0.5到2.0 m的輸出功率中基本上遵循功率 P∝H^2 的理論。

Abstract
Study on a Pendulum Type Wave Energy Converter
Ming-An Shie
Department of Aeronautics and Astronautics,
National Cheng Kung University

SUMMARY

The ocean wave energy contains larger energy density than other ocean energies. This has thus attracted numerous developments in ocean wave energy converters (WEC) in recent years. The purpose of this research is to design a pendulum type WEC and understand the dynamics of pendulum in wave motion. The pendulum WEC is a power generation device that uses the up and down movement of the device to drive the eccentric pendulum to rotate. Its rotating mechanical energy then drives the generator to produce electricity. This research contains a conceptual design of the pendulum WEC, the pendulum motion behavior study and its associated power output under different wave forms and wave heights. For comparison, analyses are made for four wave patterns, namely, A/B (rising wave time A/falling wave time B) time ratio at 1/7, 2/6, 3/5, 4/4, etc., when the wave period is 8 seconds, The wave height varies from 0.5 to 2 meters. MATLAB is used in the analysis and calculation. The results are displayed in different wave heights and four time settings. Among them, under the same wave height H, the A/B=1/7 wave form has the largest power output, and the A/B=4/4 wave form has the smallest power output. However their difference is not very big. The influence of wave height H on power output is more obvious. The power output from H = 0.5 to 2.0m basically follows the wave theory of power at which power P is proportional to the square of wave height H.

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