Title:
SYNCHRONOUS MACHINE STARTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/038282
Kind Code:
A1
Abstract:
A synchronous machine starting device comprises a power converter for converting supplied power into alternating-current power and supplying the alternating current power to an armature of a synchronous machine (4), an alternating-current voltage detector for detecting an alternating-current voltage supplied to the armature of the synchronous machine, a rotor position detector (11) for detecting a rotor position of the synchronous machine according to the detected alternating-current voltage, and a power conversion controller for controlling the power converter according to the detected rotor position. The rotor position detector (11) includes a level monitoring section (21) for outputting a first position signal indicating a timing at which the level of the alternating-current voltage supplied to the armature of the synchronous machine reaches a predetermined value according to the detected alternating-current voltage, a feedback computing unit (23) for calculating, from an estimated phase indicating the rotor position and the detected alternating-current voltage, an error of the estimated phase, calculating the estimated phase from the calculated phase error, and outputting a second position signal indicating the calculated estimated phase, and a selection circuit (SEL) for, upon receiving the first position signal or a position signal obtained from the first position signal and the second position signal, selecting either one of the received two position signals and outputting the selected one as a signal indicating the rotor position of the synchronous machine to a power conversion controller (19).
Inventors:
TAMAI SHINZO (JP)
FUJII YOSUKE (JP)
ANDO AKINOBU (JP)
HOSOKAWA YASUHIKO (JP)
FUJII YOSUKE (JP)
ANDO AKINOBU (JP)
HOSOKAWA YASUHIKO (JP)
Application Number:
PCT/JP2008/067798
Publication Date:
April 08, 2010
Filing Date:
October 01, 2008
Export Citation:
Assignee:
TOSHIBA MITSUBISHI ELEC INC (JP)
TAMAI SHINZO (JP)
FUJII YOSUKE (JP)
ANDO AKINOBU (JP)
HOSOKAWA YASUHIKO (JP)
TAMAI SHINZO (JP)
FUJII YOSUKE (JP)
ANDO AKINOBU (JP)
HOSOKAWA YASUHIKO (JP)
International Classes:
H02P1/52; H02P1/46
Foreign References:
| JP2006271038A | 2006-10-05 | |||
| JP2004072906A | 2004-03-04 | |||
| JP2002369572A | 2002-12-20 | |||
| JPH10323099A | 1998-12-04 | |||
| JP2006271038A | 2006-10-05 |
Other References:
See also references of EP 2337212A4
Attorney, Agent or Firm:
FUKAMI, Hisao et al. (JP)
Hisao Fukami (JP)
Hisao Fukami (JP)
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