負荷変動時における電動機固定子巻線短絡のオンライン診断

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2014/01/01

タイトル(英語): Online Diagnosis of Short-Circuit Fault of Stator Winding of Motor Operating under Variable Load Conditions

著者名: 中村　久栄（（株）トーエネック　技術開発室），八神　佑輔（名古屋工業大学），岸野　光佑（名古屋工業大学），水野　幸男（名古屋工業大学）

著者名(英語): Hisahide Nakamura (Research and Development Division, TOENEC Corp.), Yusuke Yagami (Nagoya Institute of Technology), Kosuke Kishino (Nagoya Institute of Technology), Yukio Mizuno (Nagoya Institute of Technology)

キーワード: オンライン診断，変動負荷，固定子巻線，短絡，故障確率，特徴量分布　　online diagnosis，variable load conditions，stator winding，short-circuit fault，fault probability，feature distribution

要約(英語): Short-circuit faults in windings due to the deterioration of insulation are one of the most common faults in motor drive systems. An easy and effective fault diagnostic method is urgently required to ensure the highly reliable operation. This paper proposes a novel online diagnosis method for short-circuit faults in the stator winding inside a low-voltage induction motor running under variable load conditions. In this study, first, several motor operations are carried out under various load conditions, and the features that represent the characteristics corresponding to the condition of the motor winding are extracted. From this experiment, it is observed that these features are linearly distributed in three-dimensional space. Second, some straight lines approximating this feature distribution obtained from healthy motors are derived, and the distances between the straight lines and the features obtained from a target motor are calculated. Then, we introduce a fault probability that can be used to diagnose the condition of the winding. On the basis of this probability, the quality of the stator winding is determined. The effectiveness of the proposed diagnosis method is experimentally verified.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.134 No.1 （2014） 特集：半導体電力変換研究会

本誌掲載ページ: 90-95 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/134/1/134_90/_article/-char/ja/