Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2008-01-29
2008-01-29
Tweel, Jr., John (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S683000, C702S183000
Reexamination Certificate
active
07324008
ABSTRACT:
Condition monitoring of an electrical machine is achieved by using electro-magnetic finite element analysis to analyse the machine based on model parameters corresponding with at least one fault condition. This allows the effect of the fault condition to be predicted. Metrology is used to recover live measurements for comparison with the predictions from the electro-magnetic finite element analysis to identify any fault signatures within the live measurements, in principle allowing those faults to be detected or diagnosed before they become catastrophic.
REFERENCES:
patent: 5255208 (1993-10-01), Thakore
patent: 5633800 (1997-05-01), Bankert
patent: 5724271 (1998-03-01), Bankert
patent: 5930155 (1999-07-01), Tohi et al.
patent: 6002988 (1999-12-01), Whaley et al.
patent: 6041287 (2000-03-01), Dister et al.
patent: 6606580 (2003-08-01), Zedda et al.
patent: 6694285 (2004-02-01), Choe et al.
patent: 6772076 (2004-08-01), Yamamoto et al.
patent: 6931353 (2005-08-01), Blazek
Bangura et al.; Comparison Between Characterization and Diagnosis of Broken Bars/End-Ring Connectors and Airgap Eccentricities of Induction Motors in ASD's Using a Coupled Finite Elements-State Space Method; IEEE, Mar. 2000.
Thomson et al.; An Industrial Case Study of On-Line Current Monitoring and Finite Element Analysis to Diagnose Airgap Eccentricity Problems in Large High Voltage 3-Phase Induction Motors; International Conference on Electrical Machines and Drives; Sep. 1, 1999.
Elkasabgy et al.; Detection of Broken Bars in the Cage Rotor on an Induction Machine; IEEE Transactions on Industry Applications; Jan. 1, 1992.
A. J. Mitcham; Transverse Flux Motors For Electric Propulsion of Ships; Proceedings of the 1997 IEE Colloquium on New Topologies for Permanent Magnet Machines; Jun. 18, 1997.
Husband et al.; The Rolls-Royce Transverse Flux Motor Development; Electric Machines and Drives Conference; IEEE International Jun. 1-4, 2003.
Husband Stephen M
Payne Bradley S
Simmers Brian E
Manelli Denison & Selter PLLC
Rolls-Royce plc
Taltavull W. Warren
Tweel , Jr. John
LandOfFree
Method of predicting condition during operation of an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of predicting condition during operation of an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of predicting condition during operation of an... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2757654