水力発電所の設備障害に関する調査研究

カテゴリ: 技術報告

論文No: 1144

グループ名: 【B】電力・エネルギー部門

発行日: 2009/01/30

タイトル(英語): Study on equipment troubles of hydroelectric power plants

著者名: 水力発電所の設備障害に関する調査専門委員会編

著者名(英語): Investigation R&D committee on equipment troubles of hydroelectric power plants

キーワード: 水力発電所，設備改善，設備障害，保全技術／Hydroelectric power plant，Equipment improvement，Faults/troubles，Maintenance technologie

要約(日本語): 本報告書は，近年の国内における水力発電設備の設備障害の傾向を把握・分析・評価するとともに，最近の障害防止対策についてまとめたものである。 　水力発電設備は，水車・発電機のような大型電気機器と駆動源となる圧油装置などの補機，制御装置など多様な機器で構成されているが，それらの機器について，平成7年度～平成16年度の10年間の設備数および障害発生状況の調査，分析を行った。また，障害が比較的多い機器については，平成15年度，16年度の2年間を詳細に調査し，障害発生までの経年や発生原因，障害の影響度などを分析した。

要約(英語): This report describes the statistics, analysis and evaluation of equipment troubles actually happened in the hydroelectric power plants in Japan. It also describes recent measures to prevent such troubles. The hydroelectric power plant is composed of various type of equipment such as generator, hydro turbine, control system, oil pressure supply system, pumps, compressors and other accessories. Actual records of troubles of such equipment were collected from all major electric power companies in Japan from 1995 fiscal year to 2004 fiscal year. Detailed data collection and analysis was performed for the equipments which have relatively high probability of troubles from 2003 fiscal year to 2004 fiscal year. Probability of troubles has decreased to less than once in five years for most equipment. But the probability seems to be increasing from 2000 fiscal year. Improvement of trouble-data management system and the change of maintenance policy in the electric power companies would be the cause of this change. Referring to the results of the analysis, the report summarizes recent trends to prevent equipment troubles from the viewpoints of design, manufacturing, operation and maintenance. The report also summarizes the life-time of the equipments from designing point of view and recent technologies to extend the life-time.

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