Title:
SWITCHED RELUCTANCE GENERATOR INITIAL ROTOR POSITION ESTIMATION
Document Type and Number:
WIPO Patent Application WO/2012/087500
Kind Code:
A3
Abstract:
A method of estimating rotor speed of a generator (106) having a rotor (110) and a stator (112) is provided. The method may provide a source current to the stator (112), determine a relative rotor speed based on a sensor signal provided by a rotor speed sensor (130), determine a relative rotor position corresponding to the relative rotor speed, determine an absolute rotor position based on the sensor signal and phase currents, and calibrate the sensor signal based on an offset between the relative rotor position and the absolute rotor position.
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| WO/1998/001943 | SYNCHRONOUS SAMPLING CIRCUIT FOR A SENSORLESS SWITCHED RELUCTANCE MACHINE SYSTEM |
| JP6520796 | Rotating machine control device |
| JPH0823663 | GENERATOR |
Inventors:
HARTMAN MARK (US)
LINDSEY ROBERT (US)
WAI JACKSON (US)
GERDES JESSE (US)
LINDSEY ROBERT (US)
WAI JACKSON (US)
GERDES JESSE (US)
Application Number:
PCT/US2011/062336
Publication Date:
August 16, 2012
Filing Date:
November 29, 2011
Export Citation:
Assignee:
CATERPILLAR INC (US)
HARTMAN MARK (US)
LINDSEY ROBERT (US)
WAI JACKSON (US)
GERDES JESSE (US)
HARTMAN MARK (US)
LINDSEY ROBERT (US)
WAI JACKSON (US)
GERDES JESSE (US)
International Classes:
H02P9/08; H02P9/02
Foreign References:
| US6472842B1 | 2002-10-29 | |||
| KR19980073978A | 1998-11-05 | |||
| KR20060049792A | 2006-05-19 | |||
| US20020175652A1 | 2002-11-28 |
Attorney, Agent or Firm:
WATERFIELD, Glenn, L. et al. (Peoria, IL, US)
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