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Title:
POWER GENERATING APPARATUS OF RENEWABLE ENERGY TYPE AND OPERATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2012/073504
Kind Code:
A2
Abstract:
It is intended to provide a power generating apparatus of renewable energy type and an operation method of the power generating apparatus, which can achieve both variable speed operation and grid connection without a frequency converting circuit and which uses a hydraulic transmission. In the power generating apparatus of renewable energy type 1, renewable energy received via a blade 4 is transmitted to a synchronous generator 20 via a rotating shaft 8 and a hydraulic transmission 10. The synchronous generator 20 is driven by a hydraulic motor 14 of the hydraulic transmission 10 to generate power. The synchronous generator 20 is connected to a grid without a frequency converting circuit and the power generated by the synchronous generator 20 is supplied to the grid 50. The power generating apparatus 1 is also provided with a transmission controller 40 which controls the hydraulic transmission 10. The transmission controller 40 controls the hydraulic transmission 10 in a normal operation mode to adjust displacement of each of a hydraulic pump 12and the hydraulic motor 14 such that the rotating shaft 8 rotates at a rotational speed that is variable with respect to flow speed of the renewable energy while keeping a rotational speed of the synchronous generator 20 at a synchronous speed based on frequency of the grid 50 during normal operation of the power generating apparatus.

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Inventors:
HASHIMOTO JUN (JP)
WAKASA TSUYOSHI (JP)
BALDINI FRANCESCO (GB)
CALDWELL NIALL (GB)
TAYLOR JAMIE (GB)
DUMNOV DANIIL (GB)
Application Number:
PCT/JP2011/006694
Publication Date:
June 07, 2012
Filing Date:
November 30, 2011
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD (JP)
HASHIMOTO JUN (JP)
WAKASA TSUYOSHI (JP)
BALDINI FRANCESCO (GB)
CALDWELL NIALL (GB)
TAYLOR JAMIE (GB)
DUMNOV DANIIL (GB)
International Classes:
F03D9/00; F03D7/02
Domestic Patent References:
WO2010085988A22010-08-05
WO2009078072A12009-06-25
Foreign References:
US20100032959A12010-02-11
CN101964533A2011-02-02
US20110025059A12011-02-03
KR100947075B12010-03-10
CN101383580A2009-03-11
US7709972B22010-05-04
JP2007239599A2007-09-20
Other References:
HIROSHI YABE, AKIRA NISHIMURA: "V. SUPERQUICK EXCITATION CONTROL SYSTEM", JOURNAL OF INSTITUTE OF ELECTRICAL ENGINEERS, vol. 106, 20 July 1986 (1986-07-20), pages 643 - 645
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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Claims:



 
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