研究生: |
蔣昕哲 Hsin-Che Chiang |
---|---|
論文名稱: |
台灣電力系統離岸風電提升併網容量規劃 Enhancing Grid-connected Capacity Planning of Offshore Wind Farms in the Taipower System |
指導教授: |
郭明哲
MING-TSE KUO |
口試委員: |
吳進忠
郭政謙 楊念哲 郭明哲 |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電機工程系 Department of Electrical Engineering |
論文出版年: | 2019 |
畢業學年度: | 107 |
語文別: | 中文 |
論文頁數: | 140 |
中文關鍵詞: | 大型離岸風場 、穩態穩定度分析 、PSS/E 、新增輸電線 |
外文關鍵詞: | large offshore wind farms, steady state stability analysis, Power System Simulator for Engineering (PSS/E), new added transmission lines |
相關次數: | 點閱:265 下載:0 |
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為了因應我國近年來在再生能源政策上之發展並推動能源轉型,減少火力與核能及其他傳統機組之發電量,以提高再生能源發電量。其中,離岸風電之建設也日漸成熟,成為各國再生能源的發展重點。
本論文以PSS/E模擬軟體對全台具離岸風場潛力之地區作為模擬地點,並參考現今政策之規劃,挑選桃園、苗栗、彰化與雲林外海做為離岸風場設置地點,並設定其臨海之D/S變電所做為離岸風場的併接點,分別對區域內挑選之161kV匯流排以集中式、平均分散式以及依線路承載率之方式併網,先以不增設線路並採用N-1事故之準則下尋找系統之最大可併網容量,並與2025年台電之規劃目標做比較,模擬結果得知如不增設輸電線路會使區域線路雍塞,限制離岸風場的可併網量,因此無法達到政府2025年離岸風電設置5.5GW之目標。論文後半段即以彰化地區為模擬對象,探討以三種尋找增設輸電線路之方式找出輸電線路增設最適點,以解決區域線路雍塞之問題並提升併網量。最後模擬結果發現增設三條輸電線路可以達到政府規劃目標與改善線路雍塞之問題,最後比較三種尋找方式結果之效益與優劣,而此結果也可供離岸風場規劃併入台灣電力系統時,對系統建設及改善之參考。
In order to cope with the development of the renewable energy policy in the Republic of China in recent years and promote energy transformation, the power generations of firepower and nuclear power and other traditional units are reduced to increase the amount of renewable energy generation. Among them, the construction of offshore wind power has gradually matured and become the development focus of renewable energy in various countries. This thesis uses the PSS/E simulation software to simulate the locations with the potential of the offshore wind farms. With reference to the current policy plan, The offshore of Taoyuan, Miaoli, Changhua and Yunlin is selected as locations for offshore wind farms. The D/S substations of the seas are set to be the joint of the offshore wind farms. The 161kV buses are selected in the areas are connected to the network in a centralized, average decentralized and the line carrying rate manners. First, the maximum grid-connectable capacity of the system without adding additional lines and adopting the N-1 accident criteria is found, and it compare with the planning goals of Taipower in 2025. The simulation results show that if the transmission lines are not added, the regional congestion of transmission lines will happen, and the amount of the offshore wind farms connected to the grid will be limited. Therefore, it is unable to meet the government's goal of setting 5.5GW of offshore wind farms in 2025. In the second half of the thesis, the Changhua area was used as a simulation object. The three ways to find additional transmission lines were found to find the optimum point for the transmission line to solve the problem of regional transmission congestion and increase the grid connection. The final simulation results show that the addition of three transmission lines can meet the government's planning goals and improve the congestion of the line. Finally, the benefits, advantages and disadvantages of the three search methods are compared. The results can also be used as a reference for system construction and improvement when offshore wind farm planning is incorporated into Taiwan's power system.
Keywords: large offshore wind farms, steady state stability analysis, Power System Simulator for Engineering (PSS/E), new added transmission lines.
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