風力エネルギー
Online ISSN : 1884-457X
Print ISSN : 0387-6217
ISSN-L : 0387-6217
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42 巻, 3 号
選択された号の論文の36件中1～36を表示しています
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巻頭言
特集　人材育成とメンテナンス
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会議参加・報告記
技術情報・最新情報
海外学協会情報
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論文
  • ドップラーライダーと低動揺型スパーブイを組み合わせた洋上風況観測システムの開発
    大西 健二, 上原 謙太郎, 井上 実, 田中 裕樹, 大井 信明, 渋谷 早苗, 小玉 亮
    2018 年 42 巻 3 号 p. A_33-A_41
    発行日: 2018年
    公開日: 2020/03/01
    DOIhttps://doi.org/10.11333/jwea.42.3_A_33
    ジャーナル フリー
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    We have developed a wind observation system for wind energy estimation of offshore wind power generation project. The system aims at cost reduction and downsizing with optimal combination of Doppler Lidar and Spar Buoy technologies. The system targets reliable and accurate wind measurement up to 150m height based on demands of offshore wind project. The installed motion stabilizer ensures the safety of the buoy and accuracy of observation. And the fuel cell with large capacity and lightweight is adopted as independent power source for observation. In the demonstration experiment off Shonai, Yamagata prefecture, we built a remote monitoring system of the buoy motion and position in addition to wind data to check the buoy status under severe weather and sea conditions. Wind observation result shows very high data acquisition rate (99.2% at height of 100 m), shows high consistency of wind speed RMSE of 1.3 m/s and wind direction Mean Absolute Error of 3.7 ° in comparison with nearby observation value.
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  • ウィンドファームにおける連系容量に対する風車基数の影響
    西尾 宣俊, 中嶋 智司, 上原 聡一郎, 本庄 暢之, 飯田 誠
    2018 年 42 巻 3 号 p. A_42-A_52
    発行日: 2018年
    公開日: 2020/03/01
    DOIhttps://doi.org/10.11333/jwea.42.3_A_42
    ジャーナル フリー
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    In case of connecting wind turbines to the grid, the total output obtained from multiplying the rated output by the number of wind turbines is often determined as the integration capacity. However, as all the wind turbines in the site are rarely operated at rated output, it is possible to obtain more power output in case of connecting number of wind turbines more than the integration capacity. We consider that decision of optimal wind turbines for wind farm replacement and repowering project is one of technique to maximize annual energy production (AEP) within a limited good wind potential site. Although investigation of replacement has already been studied in Europe and other countries, there are few cases of focusing on maximizing the AEP in wind farm using the number of wind turbines as a parameter. In this paper, we investigate the effect of connecting wind turbines over integration capacity to the grid for new project and replacement. As a result of this paper, there is an advantage by increase wind turbines depending on various wind conditions and power curve.
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