報告書番号

H11032

タイトル（和文）

電力流通設備の維持・更新計画策定支援プログラムの開発（Ⅴ）－設備量経年分布を考慮した保守計画評価手法の提案－

タイトル（英文）

Study of decision support programs for maintenance strategy of electric power equipment Part V - development of maintenance cost evaluation program by considering distribution of service age -

概要 （図表や脚注は「報告書全文」に掲載しております）

電力流通設備の保守管理部門では合理的な保守施策選定によるコスト削減を志向しており、いわゆるアセットマネジメント技術導入に関心が高まっている。効果的なアセットマネジメントを行うためには設備保守関連のデータ収集・蓄積、および設備診断技術の開発・高度化が求められるが、いずれも相応の費用・要員の投入が必要であるため、個々の計画策定部署において個別の事情を考慮した上で具体的なメリットを検討する必要がある。そこで本稿では代表的な保守施策であるCM(事後保全)、TBM(定期更新による予防保全)、CBM（ここでは寿命診断結果に基づく予防的保全)について、対象設備の経年分布、寿命分布、また診断精度などを元に運用期間中の毎年の所要費用と平均所要費用を求め、有効性を比較するモデルを整理・構築し、汎用プログラムとして開発した。また本プログラムを用いることにより、診断精度向上や、設備寿命についての階層別データ処理の一例である寿命分布のグループ分けの効果を試算できることを示した。

概要 （英文）

Rationalization of maintenance strategies and cost reduction as its result are strongly intended by members at equipment maintenance section in electric power industry, and the asset management technique is expected to support. For effective utilization of asset management technique, it is very important to collect maintenance related data and to develop useful diagnosis technique for equipment condition, and appropriate investment is required for them. Therefore, it is necessary to evaluate merits of data collection and diagnosis technique development by considering each circumstance of maintenance strategy planning section. In this report, an evaluation model for typical maintenance methods, CM (corrective maintenance), TBM (time based maintenance) and CBM (condition based maintenance; in this report, this is considered as a method to decide renewal timing by life time diagnosis) is examined, which utilizes several input information, such as equipment age distribution, expected life time probability density distribution and accuracy of life time diagnosis. This model can evaluates annual and average maintenance cost during operation period of equipment, and these maintenance methods are compared through them. And, a program based on this model has been developed. This program equips graphical user interface, and is easy to utilize for members at a section responsible for maintenance strategy and development of diagnosis technique.
By utilizing this program, merits from improvement of life time diagnosis method, and effective data collection and database organization, such as hierarchical database utilization, have been evaluated by way of trial. These researches and developments should be sophisticated through real utilizations and applications in the future.

報告者

キーワード