成果報告書詳細
管理番号20130000000243
タイトル*平成24年度中間年報 「風力等自然エネルギー技術研究開発 海洋エネルギー技術研究開発 海洋エネルギー発電システム実証研究(浮体式潮流発電)」
公開日2013/10/25
報告書年度2012 - 2012
委託先名三井海洋開発株式会社
プロジェクト番号P07015
部署名新エネルギー部
和文要約
英文要約Title: Research and Development Project for floating tidal power generation using renewable energy, wind and ocean power energy.

This R&D aims to develop floating tidal power generation using tidal current power. Feasibility study will be performed for the selection of verified sea area in 2012 to 2013. Performance and durability test are conducted on 1/50 scale models to confirm technical feasibilities. Also cost analysis has been conducted to substantiate possibilities generation cost within 40 Yen per kWh for future business phase. 1/50 size scale mode were designed, fabricated and tested in a model test tank basin to confirm stability in extreme environment, and to test general turbine performance.Turbine design modification study was performed to improve performance. Confirmed that performance will not be deteriorated by marine growth. Numerical simulation model was established and calibrated to match the scale model behavior, and time domain dynamic simulation was conducted to estimate 1/1 scale mooring force. 1/20 and 1/5 scale elastomer supports were designed and tested to respectively prove feasibility and durability of a gimbal like turbine axis support system allowing 25 degrees relative pitch between the axis and the float structure.Control system was developed to support both grid connected and disconnected mode of the power generation.According to testing machine results, a suitable offshore test site with reasonable current velocity was identified and general consensus was established with stakeholders including local government, fishery operators/unions, and japan Coast Guard. Metocean, geographic and geotechnical data were collected and are being analyzed for mooring feasibilities, establishment of design met ocean condition, and power generation estimates. Then, preliminary subsea Layout was developed. Economic analysis has been conducted to estimate the power generation economics for the future business phase. Our development was announced at Wind Expo 2013 where hold at Tokyo Bigsite, attracting quite much interests and was, broadcasted by a number of major Medias. We intend to apply patent application for the gimbal like rubber support system, which is to be sealed as a precedent IP.
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