Publication

Hyperautonomy Artificial Intelligence Lab

2015 수냉식 발전기 고정자 권선의 흡습 건전성 예지

본문

Journal
대한기계학회논문집 A권
Author
장범찬, 윤병동, 김희수, 배용채
Date
2015-06
Citation Index
SCOPUS, KCI 등재
Vol./ Page
제 39권, 제 6호
Year
2015
File
수냉식_발전기_고정자_권선의_흡습_건전성_예지.pdf (811.0K) 3회 다운로드 DATE : 2024-04-30 12:42:56

Abstract 


In this study, we develop a prognostic method of assessing the stator windings of power generators against water absorption through statistical data analysis and degradation modeling. The 42 windings of the generator are divided into two groups: the absorption and normal groups. A degradation model of a winding is constructed using Fick's second law to predict the level of absorption. By analyzing data from the normal group, we can determine the distribution of the data of normal windings. The health index of a winding is estimated using the directional Mahalanobis distance (DMD) method. Finally, the probability distributions of the failure time of the windings are determined.