Title:
CONTROL DEVICE FOR VARIABLE-SPEED PUMP-UP POWER-GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/092733
Kind Code:
A1
Abstract:
A control device for a variable-speed pump-up power-generation device that conducts a start-up of a pumping-up with an AC-exciter synchronous machine put in synchronous-characteristic operation mode, and after that, switches and proceeds to pumping-up operation with the AC-exciter synchronous machine put in slip-run mode; wherein the AC-exciter synchronous machine is made to run using a synchronous-exciting phase signal in the synchronous-characteristic operation mode of the machine, and made to run using a slip phase signal in the slip-run mode of the machine; and the machine is made to run, in the start-up stage of the pumping-up, by amending the synchronous-exciting phase signal of an oscillator output calculator obtained from the target frequency signal, to a value close to a slip phase signal obtained from the difference between the voltage phase of the AC system, and the rotor electric-angle of the AC-exciter synchronous machine.
Inventors:
MORITA AKIHIRO (JP)
Application Number:
PCT/JP2010/000443
Publication Date:
August 04, 2011
Filing Date:
January 27, 2010
Export Citation:
Assignee:
HITACHI LTD (JP)
MORITA AKIHIRO (JP)
MORITA AKIHIRO (JP)
International Classes:
H02P9/00; H02P9/04; H02P9/08; H02P101/10; H02P103/10
Foreign References:
| JPH05284798A | 1993-10-29 | |||
| JP2000134973A | 2000-05-12 | |||
| JPH08107683A | 1996-04-23 |
Attorney, Agent or Firm:
POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)
Polaire Intellectual Property Corporation (JP)
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