Study on a Rotor Speed Control System for a Horizontal Axis Windmill

Material type: 文書・図像類

Author: 外立, 政隆ほか

Publisher: 航空宇宙技術研究所

Publication date: 1987-05

Material Format: Digital

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Note (General)：: The rotor speed control of windmills plays an essential roll in their practical use. Rotor speed control technology is indispensable not only in attai...

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Material Type: 文書・図像類
Title: Study on a Rotor Speed Control System for a Horizontal Axis Windmill
Author/Editor: 外立, 政隆
半沢, 麻雄
室田, 勝一
野口, 正芳
HASHIDATE, Masataka
HANZAWA, Asao
MUROTA, Katsuichi
NOGUCHI, Masayoshi
Author Heading: 外立, 政隆
半沢, 麻雄
室田, 勝一
野口, 正芳
HASHIDATE, Masataka
HANZAWA, Asao
MUROTA, Katsuichi
NOGUCHI, Masayoshi
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1987-05
Publication Date (W3CDTF): 1987-05
Alternative Title: 水平軸風車の回転数制御に関する研究
Periodical title: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-931
No. or year of volume/issue: 931
Volume: 931
Pages: 42-
ISSN (Periodical Title): ISSN : 0389-4010
Text Language Code: eng
Target Audience: 一般
Note (General): The rotor speed control of windmills plays an essential roll in their practical use. Rotor speed control technology is indispensable not only in attainning a high level of energy conversion efficiency but also in avoiding damage to the windmill rotor system under very strong wind conditions. The present study was conducted as a part of the component technology research and development program for the 20kw horizontal axis windmill system development project sponsored by the Science and Technology Agency of the Japanese government. A hydraulic pitch control system for a 1kw class windmill (a pioneering sub-scale model for the 20kw windmill) was developed and improved through repeated tests in the NAL low speed wind tunnel and through outdoor tests. Our original application of the electromagnetic proportional hydro-relief valve to the hydraulic pitch control system of windmills brought an outstanding reduction of the variation in windmill rotational speed. The test results confirm the excellent characteristics of the windmill rotor speed control. The practicality of the hydraulic pitch control system has been proving itself in the 20kw windmill operation since December 1985.
資料番号: NALTR0931000
レポート番号: NAL TR-931
Source: https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=45190&item_no=1&attribute_id=31&file_no=1
https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=45190&item_no=1&attribute_id=31&file_no=1
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ