发明名称 Method and apparatus for powering a pitch control system
摘要 A pitch control system for a wind turbine having a motor including an armature, a winding, and a plurality of switching components configured to control a first current through the armature independently of a second current through the winding.
申请公布号 US7942631(B2) 申请公布日期 2011.05.17
申请号 US20090605633 申请日期 2009.10.26
申请人 GENERAL ELECTRIC COMPANY 发明人 MELIUS JEFFREY ALAN
分类号 F03D7/02 主分类号 F03D7/02
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