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公开(公告)号：US20150152843A1
公开(公告)日：2015-06-04
申请号：US14543373
申请日：2014-11-17
Applicant: Moog Unna GmbH
Inventor： Alf Vetter , Matthias Pauli
CPC classification number: F03D7/0224 , F03D7/0264 , F05B2260/79 , F05B2270/107 , F05B2270/602 , H02J9/062 , Y02B10/72 , Y02E10/723 , Y02E10/766
Abstract: A method for the operation of a pitch system of a wind turbine with at least one rotor blade, wherein the pitch system has at least one input rectifier and at least one pitch drive, each rotor blade can be rotated around its longitudinal axis by the one pitch drive or by at least one of several pitch drives, each input rectifier is supplied with alternating voltage by a supply network, and each pitch drive is supplied with electric power by the one input rectifier or by at least one of several input rectifiers, each pitch drive is connected to an emergency power storage device, whereby each pitch drive can be supplied with electric power by the emergency power storage device that is connected to it.
Abstract translation: 一种用于操作具有至少一个转子叶片的风力涡轮机的桨距系统的方法，其中所述桨距系统具有至少一个输入整流器和至少一个变桨驱动器，每个转子叶片可以围绕其纵向轴线旋转一个 每个输入整流器由供电网络提供交流电压，并且每个变桨驱动器由一个输入整流器或多个输入整流器中的至少一个提供电力，每个输入整流器 变桨驱动器连接到应急蓄电装置，由此可以通过与其连接的应急蓄电装置向每个变桨驱动器供电。
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公开(公告)号：US09897072B2
公开(公告)日：2018-02-20
申请号：US14543373
申请日：2014-11-17
Applicant: Moog Unna GmbH
Inventor： Alf Vetter , Matthias Pauli
CPC classification number: F03D7/0224 , F03D7/0264 , F05B2260/79 , F05B2270/107 , F05B2270/602 , H02J9/062 , Y02B10/72 , Y02E10/723 , Y02E10/766
Abstract: A method for the operation of a pitch system of a wind turbine with at least one rotor blade, wherein the pitch system has at least one input rectifier and at least one pitch drive, each rotor blade can be rotated around its longitudinal axis by the one pitch drive or by at least one of several pitch drives, each input rectifier is supplied with alternating voltage by a supply network, and each pitch drive is supplied with electric power by the one input rectifier or by at least one of several input rectifiers, each pitch drive is connected to an emergency power storage device, whereby each pitch drive can be supplied with electric power by the emergency power storage device that is connected to it.
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公开(公告)号：US20180171987A1
公开(公告)日：2018-06-21
申请号：US15843654
申请日：2017-12-15
Applicant: Moog Unna GmbH
Inventor： Kartik Yao , Alf Vetter , Thomas Degen
CPC classification number: F03D80/60 , F03D7/0224 , F03D9/11 , F05B2240/221 , F05B2260/76 , H02J3/386 , H02J7/0063 , H02J7/0091 , H02J7/34 , H02J9/062 , Y02B10/72 , Y02E10/72 , Y02E10/763 , Y02E10/766
Abstract: There is provided a wind turbine pitch drive unit comprising an electrical energy storage, a resistor, and a cooling fan arranged to provide an air flow over the resistor. The pitch drive unit is configured to discharge the electrical energy storage by: connecting the electrical energy storage to the resistor such that a current from the electrical energy storage flows through the resistor; disconnecting the electrical energy storage from the resistor when a voltage across the electrical energy storage reaches a first pre-determined threshold; and once the voltage has reached the first pre-determined threshold, powering the cooling fan with the electrical energy storage until the voltage reaches a second pre-defined voltage, thereby cooling the resistor.
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