Title:
HYDRAULIC TRANSMISSION METHODS AND APPARATUS FOR WIND TURBINES
Document Type and Number:
WIPO Patent Application WO/2012/100783
Kind Code:
A3
Abstract:
A hydraulic transmission for a wind turbine that includes a rotor, one or more blades mounted to the rotor, a hydraulic pump mechanically connected to the rotor, and a hydraulic motor. The hydraulic pump and the hydraulic motor are connected to one another by a high pressure circuit. The hydraulic pump maybe a variable displacement hydraulic pump and the hydraulic motor may include a variable displacement hydraulic motor. The wind turbine, including the rotor, the blades of the rotor, the hydraulic pump, and the hydraulic motor may be controlled according to different approaches.
Inventors:
LINDHOLDT NIELSEN PER (DK)
JOERGENSEN ALLAN HOLM (DK)
NIELSEN CHRISTIAN MARK (DK)
HOEJSGAARD HANS HENRIK (DK)
KOLDKJAER PETER (DK)
GREGERSEN KRISTIAN (DK)
JOERGENSEN ALLAN HOLM (DK)
NIELSEN CHRISTIAN MARK (DK)
HOEJSGAARD HANS HENRIK (DK)
KOLDKJAER PETER (DK)
GREGERSEN KRISTIAN (DK)
Application Number:
PCT/DK2012/050039
Publication Date:
October 04, 2012
Filing Date:
January 30, 2012
Export Citation:
Assignee:
VESTAS WIND SYS AS (DK)
LINDHOLDT NIELSEN PER (DK)
HERBSLEB EIK (DK)
JOERGENSEN ALLAN HOLM (DK)
NIELSEN CHRISTIAN MARK (DK)
HOEJSGAARD HANS HENRIK (DK)
KOLDKJAER PETER (DK)
GREGERSEN KRISTIAN (DK)
LINDHOLDT NIELSEN PER (DK)
HERBSLEB EIK (DK)
JOERGENSEN ALLAN HOLM (DK)
NIELSEN CHRISTIAN MARK (DK)
HOEJSGAARD HANS HENRIK (DK)
KOLDKJAER PETER (DK)
GREGERSEN KRISTIAN (DK)
International Classes:
F03D7/02
Domestic Patent References:
| WO2007053036A1 | 2007-05-10 | |||
| WO2009076757A2 | 2009-06-25 |
Foreign References:
| US5145324A | 1992-09-08 |
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