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Title:
POWER GENERATING APPARATUS OF RENEWABLE ENERGY TYPE AND METHOD OF OPERATING THE SAME
Document Type and Number:
WIPO Patent Application WO/2011/148652
Kind Code:
A3
Abstract:
It is intended to provide a power generating apparatus of renewable energy type which obtains desired torque rapidly in response to changes of the renewable energy as well as a method of operation such an apparatus. The power generating device which generates power from a renewable energy source, includes a rotating shaft 8 driven by the renewable energy, a hydraulic pump 12 of variable displacement type driven by the rotating shaft 8, a hydraulic motor 14 driven by pressurized oil supplied from the hydraulic pump 12, a generator 20 coupled to the hydraulic motor 14, a high pressure oil line 16 through which a discharge side of the hydraulic pump 12 is in fluid communication with an intake side of the hydraulic motor 14, a pump demand determination unit 44 which determines a displacement demand Dp of the hydraulic pump based on a target torque Td of the hydraulic pump 12 and an oil pressure in the high pressure oil line 16 and a pump controller 46 which adjusts displacement of the hydraulic pump 12 to the determined displacement demand Dp.

Inventors:
ICHINOSE HIDEKAZU (JP)
TSUTSUMI KAZUHISA (JP)
SHIMIZU MASAYUKI (JP)
CALDWELL NIALL (GB)
DUMNOV DANIIL (GB)
RAMPEN WILLIAM (GB)
LAIRD STEPHEN (GB)
PAPPALA VENKATA (GB)
Application Number:
PCT/JP2011/003000
Publication Date:
April 12, 2012
Filing Date:
May 30, 2011
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD (JP)
ICHINOSE HIDEKAZU (JP)
TSUTSUMI KAZUHISA (JP)
SHIMIZU MASAYUKI (JP)
CALDWELL NIALL (GB)
DUMNOV DANIIL (GB)
RAMPEN WILLIAM (GB)
LAIRD STEPHEN (GB)
PAPPALA VENKATA (GB)
International Classes:
F03D9/00; F03D11/02
Domestic Patent References:
WO2007053036A12007-05-10
Foreign References:
US4280061A1981-07-21
JP2005248738A2005-09-15
US4496847A1985-01-29
US20100040470A12010-02-18
Attorney, Agent or Firm:
TAKAHASHI, MATSUMOTO & PARTNERS INTELLECTUAL PROPERTY CORP. (Ambassador Roppongi Buildings 16-13, Roppongi 3-chome, Minato-k, Tokyo 32, JP)
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