Title :
Real-Time Model-Based Fault Detection and Diagnosis for Alternators and Induction Motors
Author :
Leite, Daniel F. ; Hell, Michel B. ; Diez, Patrícia H. ; Gariglio, Bernardo S L ; Nascimento, Lucas O. ; Costa, Pyramo, Jr.
Author_Institution :
Pontifical Catholic Univ. of Minas Gerais, Belo Horizonte
Abstract :
This paper describes a real-time model-based fault detection and diagnosis software. The electric machines diagnosis system (EMDS) covers field winding shorted-turns fault in alternators and stator windings shorted-turns fault in induction motors. The EMDS has a modular architecture. The modules include: acquisition and data treatment; well-known parameters estimation algorithms, such as recursive least squares (RLS) and extended Kalman filter (EKF); dynamic models for faults simulation; faults detection and identification tools, such as M.L.P. and S.O.M. neural networks and fuzzy C-means (FCM) technique. The modules working together detect possible faulty conditions of various machines working in parallel through routing. A fast, safe and efficient data manipulation requires a great DataBase managing system (DBMS) performance. In our experiment, the EMDS real-time operation demonstrated that the proposed system could efficiently and effectively detect abnormal conditions resulting in lower-cost maintenance for the company.
Keywords :
alternators; fault location; induction motors; alternators; data treatment; electric machines diagnosis system; estimation algorithms; extended Kalman filter; fault diagnosis; fuzzy C-means; induction motors; neural networks; real-time model-based fault detection; recursive least squares; stator windings; Alternators; Computer architecture; Electric machines; Electrical fault detection; Fault detection; Fault diagnosis; Induction motors; Machine windings; Parameter estimation; Stator windings;
Conference_Titel :
Electric Machines & Drives Conference, 2007. IEMDC '07. IEEE International
Conference_Location :
Antalya
Print_ISBN :
1-4244-0742-7
Electronic_ISBN :
1-4244-0743-5
DOI :
10.1109/IEMDC.2007.383577