因應淨零碳排政策，政府積極發展綠色能源，隨著未來風場逐漸開發，固定式離岸風電受限於水深及地形上的限制逐漸達到裝置極限，未來勢必需要更往深水區發展，浮動式平台具有較不受到水深限制之優勢，是未來的發展趨勢。在發電量逐漸增加的情況下，可預期風場中具有浮動式變電站的設置，能夠減少電力輸送的耗損，而風場機組間動態電纜的配置乃屬重要的議題。目前動態電纜相關研究主要是參考立管經驗進行設計，如緩波型(lazy wave)，若將此配置應用到較深水的海域會產生較高的成本，包括埋管佈設的成本，在進行管線的埋設過程因為海床的擾動也容易造成海底汙染，以及施工噪音對於海底生物的影響。因此，本研究選擇兩座半潛式平台分別搭載15MW風機與變電站站體做為目標機組，設計雙浮台機組間懸浮式動態電纜配置，針對不同配置張力、曲率、佈設深度與疲勞損傷進行分析，並提出適用於臺灣新竹海域之最佳化配置。
本研究使用AQWA及OrcaFlex軟體建置兩座浮動式平台，平台距離為850公尺，並設計雙浮球段、三浮球段與四浮球段懸浮式動態電纜配置與緩波型(lazy wave)對照配置，先行以DNV國際規範進行驗證，確認平台響應與繫纜張力皆符合規範限制。並以1/49縮尺模型試驗進行數值模擬計算驗證，針對平台自由衰減特性、50年回歸期海況與1年回歸期海況之平台運動姿態、電纜張力與電纜曲率進行驗證。由模型實驗之時序列比對結果說明在各參數於不同海況下之響應範圍與數值結果趨勢吻合，頻域能譜比對結果說明與數值模擬在不同海況下之響應能量密度峰值皆位於相近之頻率範圍，藉此驗證數值模擬計算吻合性。
最後，本研究採用適應度參數評估最佳化配置。藉由計算動態電纜於50年回歸期極端條件下之最大張力與最大曲率，分析是否能夠於極端海況下存活，之後計算動態電纜於常態海況下電纜佈設深度，評估船隻航行通過安全問題，並使用中央氣象局所提供浮標長期波浪浮標進行疲勞損傷計算，評估電纜使用年限。由適應度參數結果說明，本研究所設計三組優化懸浮式電纜配置中，四浮球段具有較佳適應度且與緩波型對照配置相比差距最小。顯示在本研究選定850公尺之雙浮台距離下，四浮球段配置為應用在臺灣新竹海域之最佳懸浮式動態電纜配置。
透過以上之研究，本文研究成果可提供未來浮動式風場機組間動態電纜配置運動行為之研析基礎，將可作為我國未來浮動式機組間懸浮式動態電纜設計之參考。

The purpose of this study is to design the suspended inter-array dynamic cable configuration between floating wind turbine and floating substation located in the Hsinchu offshore area, Taiwan. This study has been verified with OrcaFlex numerical simulation and a 1/49 scaled model experiment. The platform motion, cable tension and cable curvature under the 50- year return period and the 1- year return period environmental conditions are measured by model experiment and compared with the numerical simulation results. The comparison of time series results from model experiment and numerical simulation shows great consistency on the response range of each parameter under different sea states, and the comparison of the power spectral density (PSD) also indicates the response energy density peaks of the numerical simulation under different sea states are at the approximative frequency. Therefore, the accuracy of numerical simulation calculations is validated.
In this study, the fitness parameter is used to evaluate the optimal configurations. Calculations through the maximum tension and curvature of the dynamic cable under the 50-year return period extreme environmental condition with 0- degrees and 90- degrees incident angle are conducted to examine the survival in extreme sea conditions. The cable laying depth under normal sea conditions is also covered to see whether it affects the navigation of ships. Finally, the fatigue damage of the dynamic cable is conducted under different sea states according to the long-term buoy data from the Central Weather Bureau to evaluate the survival life of the cable. Based on the results of fitness parameters, among the three groups of optimized suspension cable configurations designed in this research, the four-buoyancy sections have better fitness and only slightly worse than lazy wave configuration, which shows that the four-buoyancy sections configuration selected in this research is the most suitable suspended dynamic cable configuration applied in Taiwan Hsinchu offshore area.

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