Research and Development of Ocean Energy Derived from Tidal Current( II ) ( III )-3

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Project title

Code/計畫編號

NSC100-3113-E019-002

Translated Name/計畫中文名

我國沿海潮流發電評估與發電機組雛形研發( I )-3

Project Coordinator/計畫主持人

Hung-Jen Lee

Funding Organization/主管機關

National Science and Technology Council

Co-Investigator(s)/共同執行人

蔡政翰
羅耀財
柯永澤
郭南榮
梁興杰
李賢文
黃世任
董東璟

Department/Unit

Department of Marine Environmental Informatics

Website

https://www.grb.gov.tw/search/planDetail?id=2203092

Year

2011

Start date/計畫起

01-01-2011

Expected Completion/計畫迄

01-12-2011

Co-Investigator(s)

Cheng-Han Tsai
Yao-Tsai Lo

Bugetid/研究經費

8050千元

ResearchField/研究領域

海洋科學
電子電機工程

"台灣地區四面環海，海洋蘊藏的再生能源相當豐富，海洋再生能源主要是潮汐能、波浪能、海流能(潮流能)、海水溫差能和海水鹽差能，本計畫研究對象為潮流(tidal current)發電，它是受到了潮汐水位的漲落，產生海洋水體週期性往復的水流運動，當潮汐運動經過島嶼或是狹長水道時，可能因為通水斷面束縮而形成高速水流，達到發電門檻。與洋流(ocean current)發電不同的是，潮流容易預測，且常發生在離岸不遠的近海，未來在開發的工程需求與電網連結等方面相對有利。本計畫研究的位置為位於基隆和平島和基隆嶼之間的基隆海檻(Keelung Sill)上方水道，由於海底凸起的海檻地形，讓潮流流經此處時加速，初步測量結果顯示流速可達6節(3m/s)以上，淺水處流速更大，基隆海檻是潛在的潮流發電研究位址之一。本計畫目的在於運用學界能量，擴大我國潮流發電研究隊伍，提昇國內潮流發電究技術水平，以期能在政策上推動潮流發電或者未來潮流發電達到商轉效能時，提供技術支援。在此目的下，本計畫研究主要工作目標為完成基隆嶼海域潮流資料調查，計算基隆嶼海域之潮流發電潛能，並完成一台我國自製3瓩級潮流發電模型機組，詳細工作項目列點如下: 1. 透過數值模式與衛星影像分析，評估台灣海域潮流發電潛能 2. 調查潮流發電研究場址-基隆海檻之潮流特性 3. 自行研發3瓩級潮流發電系統模型機組設計與製造 4. 從事颱風設計波浪分析，研究潮流發電機組受颱風外力之影響 5. 於海大水洞測試3瓩級潮流發電機 6. 在基隆海檻測試自行研發之3瓩級潮流發電系統本計畫預計以三年時間完成。第一年(2010)已初步完成發電機輪葉設計、海檻潮流三季各15天以上之量測(最大流速達5節以上)、2維數值模式建立、初步颱風波浪與風極端分析，計畫第二年(2011)進行潮流發電機組實驗室測試、3維數值模擬、遙測分析；第三年(2012)則進行海上測試及金門海域潮流模擬。完成本計畫後，在技術上，可以掌握我國環島潮流發電潛能，並將提昇我國潮流發電機組自製能力，也瞭解發電機組受外力之反應。本計畫完成後，即完成了在實際海洋興建潮流發電廠的先期研究與測試工作。本計畫所設計之潮流發電機可依比例放大成MW級之機組。而這些MW級之機組可裝置於臺灣海域有發電潛能之場址。" "The seas surrounding Taiwan contain potentially useable ocean energy, which includes those from ocean waves, ocean thermal energy conversion, tides, ocean current, and tidal current. The present project focuses on tidal current conversions, which use mechanical devices to convert kinetic energy of tidal current to electrical energy. Tidal current is the back and forth water movement associated with the periodic rise and fall of the astronomical tides. As the tidal current encounters narrows between islands or shallow passages in the coastal region, it may attain a speed which is worthwhile to be developed. Unlike ocean current, tidal current can often be easily predicted. Moreover, developable sites are also near the coast. Hence the power generated by tidal current is easier to integrate into a power grid than that from ocean current. The present project will study the site located between the Keelung Island and Hoping Island on the Keelung coast. In this strip of water, there is a geological formation called Keelung Sill, over which the tidal current accelerates, up to 6 knots (3 m/s), due to the shallow depth of the sill. The main objective of the present project is to organize a team devoted to do research and development on tidal current conversion technology. The goals of this project is to carry out detail studies on the tidal currents of the seas near the Keelung Sill, to estimate the potential power of these current, and to complete the design and development of a 3 kW tidal current power generator. The details of the project include: 1. Use remote sensing imageries and numerical simulation to estimate the potential power due to tidal current in the seas surrounding Taiwan. 2. Detail field investigation of the tidal current near the Keelung Sill. 3. Design and manufacture a 3 kW tidal current generator. 4. Investigate effects of typhoon waves on tidal current conversion systems. 5. Testing of the tidal current generator in the NTOU cavitation tunnel. 6. Testing of the generator on the Keelung Sill. This is a three-year project. In the first year (2010) we have complete the design of the turbine blades, seasonal measurements of tidal current (Max. speed over 5 knots), 2-D tidal current model development, preliminary extreme analysis of typhoon wind and wave. In 2011 (the second year) we will test the tidal current generator in our cavitation tunnel and conduct 3-D numerical modeling. Finally in the third year we will install the generator on the Keelung Sill for field trial and power generation. Upon completing this project, we should be able to design and manufacture tidal current power generator in our country without assistance from other countries. We should also understand how the generator will withstand the extreme forces from typhoons. The experience through deploying our 3 kW generator will help us in designing and manufacturing MW class generators. These MW generators can be installed at potential sites in the Taiwan seas."

Keyword(s)

潮流發電機設計製造與測試
潮流測量
潮流數值模擬
颱風時期極端受力

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Research and Development of Ocean Energy Derived from Tidal Current( II ) ( III )-3

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