Title:
発電機界磁巻線の速度感知界磁地絡検出モード
Document Type and Number:
Japanese Patent JP4471628
Kind Code:
B2
Abstract:
A method is disclosed for locating a speed sensitive ground condition (38) in a field winding of an electromagnetic synchronous machine having a rotor and an excitation circuit (48), said method including: sensing a magnetic flux (30) generated by the field winding, while accelerating the rotor (43) and activating the excitation circuit; detecting a cyclical aberration (46) in the magnetic flux occurring during revolution of the rotor, and determining a position in the field winding (50) corresponding to the cyclical aberration and identifying that position as a location of the speed sensitive ground condition.
Inventors:
Gregory John Goodrich
Walter Joseph Kuseiwa
Walter Joseph Kuseiwa
Application Number:
JP2003377686A
Publication Date:
June 02, 2010
Filing Date:
November 07, 2003
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
G01R31/06; H02K11/00; G01R31/34; H02K33/18; H02K44/00
Domestic Patent References:
| JP2219435A | ||||
| JP11326469A | ||||
| JP60167654A | ||||
| JP58012555A | ||||
| JP56083223A | ||||
| JP2114899A | ||||
| JP3018771A |
Foreign References:
| US3506914 | ||||
| US4658213 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Nobukazu Ito
Hirokazu Ogura
Nobukazu Ito