Title:
PITCH DRIVE DEVICE FOR A WIND POWER OR HYDROELECTRIC POWER STATION
Document Type and Number:
WIPO Patent Application WO/2011/061233
Kind Code:
A3
Abstract:
The invention relates to a pitch drive device (26) for a wind power or hydroelectric power station (22) comprising a synchronous motor (13) and a motor operation switchover unit (21) for switching between normal operation and emergency operation. To do so, the synchronous motor (13) is operable in normal operation with three-phase AC and in emergency operation with DC. The invention furthermore relates to a method for operating a pitch drive device (26) of this type.
Inventors:
ROESMANN TOBIAS (DE)
Application Number:
PCT/EP2010/067700
Publication Date:
May 03, 2012
Filing Date:
November 17, 2010
Export Citation:
Assignee:
MOOG UNNA GMBH (DE)
ROESMANN TOBIAS (DE)
ROESMANN TOBIAS (DE)
International Classes:
H02K23/64; B60L11/18; F03D7/04; F03D9/00; H02K27/12; H02P4/00; H02P25/02; H02P29/00
Foreign References:
| DE102006057213A1 | 2008-06-05 | |||
| DE102008029574A1 | 2009-12-24 |
Attorney, Agent or Firm:
KAUFMANN, Ursula Josefine (Stuttgart, DE)
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