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    FAULT RIDE-THROUGH CAPABILITY FOR WIND TURBINE
    4.
    发明公开
    FAULT RIDE-THROUGH CAPABILITY FOR WIND TURBINE 审中-公开

    公开(公告)号：EP3378141A1

    公开(公告)日：2018-09-26

    申请号：EP16706282.7

    申请日：2016-02-03

    申请人： Siemens Aktiengesellschaft

    发明人： NELSON, Robert J. ,  AMOS, John D.

    IPC分类号： H02J3/12 ,  H02J3/18 ,  H02J3/38

    CPC分类号： H02J3/386 ,  F03D9/255 ,  H02J3/12 ,  H02J3/16 ,  H02J3/18 ,  H02J3/1892 ,  Y02E10/763 ,  Y02E40/30

    摘要： A wind turbine system (20, 70) is connected to an electrical grid (42) by an inverter (38) that provides turbine terminal voltage (Vt) support to the grid during a grid low voltage fault that is concurrent with a lack of real power production from the generator (30) by providing reactive power to the grid. A processor (46) controls the inverter to preserve a minimum voltage on a local DC bus (34) by stopping the reactive power output when the DC bus voltage drops to a threshold value (59) that is above a low bus voltage trip setpoint (56). An energy storage device (48) such as a battery may be connected to the DC bus to provide power that supports a prolonged ride-through capability during the grid fault.

    ROTOR BLADE CONTROL FOR HIGH WINDS
    6.
    发明授权
    ROTOR BLADE CONTROL FOR HIGH WINDS 有权

    公开(公告)号：EP3071831B1

    公开(公告)日：2018-08-15

    申请号：EP14799962.7

    申请日：2014-11-19

    申请人： Vestas Wind Systems A/S

    发明人： CAPONETTI, Fabio ,  COUCHMAN, Ian ,  KRÜGER, Thomas ,  ZAIB, Ali ,  THOMSEN, Carsten Nørlund

    IPC分类号： F03D7/02

    CPC分类号： F03D7/0264 ,  F03D7/0224 ,  F03D9/255 ,  F05B2270/3201 ,  F05B2270/322 ,  H02J11/00 ,  H02K7/183 ,  Y02E10/723 ,  Y02E10/725

    摘要： The invention relates to a control apparatus and method for controlling the rotor blades of a wind turbine, and in particular to controlling the rotor blades during an extreme wind event. An extended mode of operation of the wind turbine rotor beyond the cut-out wind speed is provided. In the extended mode of operation, the pitch of the wind turbine blades is actively controlled so that the rotor and the generator idle at a designated rotational speed. The rotational speed may be relatively high, say 15 to 20% of the nominal speed, compared with minimal speeds experienced by purely feathered wind turbine blades, and may be further controlled as a function of the incident wind speed. Output power control in the extended mode may be zero but is preferably a low, but non-zero value. The output power so produced may then be used as an auxiliary power source for controlling the wind turbine in situations where the utility grid fails.

    VERFAHREN ZUR REGELUNG EINES SELBSTGEFÜHRTEN UMRICHTERS, SELBSTGEFÜHRTER UMRICHTER SOWIE ANORDNUNG ZUR ÜBERTRAGUNG ELEKTRISCHER LEISTUNG
    8.
    发明公开
    VERFAHREN ZUR REGELUNG EINES SELBSTGEFÜHRTEN UMRICHTERS, SELBSTGEFÜHRTER UMRICHTER SOWIE ANORDNUNG ZUR ÜBERTRAGUNG ELEKTRISCHER LEISTUNG 审中-公开
    控制汽车逆变器的方法，自驱动逆变器以及用于传输电力的安排

    公开(公告)号：EP3311481A1

    公开(公告)日：2018-04-25

    申请号：EP15750699.9

    申请日：2015-08-11

    申请人： Siemens Aktiengesellschaft

    发明人： CHRIST, Timo ,  SEMAN, Slavomir ,  ZUROWSKI, Rainer

    IPC分类号： H02P9/48 ,  F03D9/00 ,  H02J3/18

    CPC分类号： H02P9/48 ,  F03D9/255 ,  H02J3/1885 ,  Y02E10/725 ,  Y02E10/763 ,  Y02E40/32

    摘要： The invention relates to a method for regulating a self-commutated converter that can be connected on the AC side to an AC network via an inductive component, wherein: an actual power value and an actual frequency value are determined from a network voltage measured on the AC side of the converter and from a converter current measured at the converter; an active power regulation difference is formed as the difference between an active power portion of the actual power value and a desired active power value, and a frequency regulation difference is formed as the difference between the actual frequency value and a predefined desired frequency value; an orthogonal portion of a converter control voltage is determined by means of an orthogonal regulator in accordance with the active power regulation difference, wherein an active power exchanged between the converter and the AC network is determined by means of the orthogonal portion, a parallel portion of the converter control voltage is determined by means of a parallel regulator in accordance with the active power regulation difference, wherein a reactive power exchanged between the converter and the AC network is determined by means of the parallel portion. The method is characterised in that the frequency regulation difference is supplied to the parallel regulator, such that the determining of the parallel portion of the converter control voltage is carried out in accordance with the frequency regulation difference. The invention also relates to a self-commutated converter for transmission with a regulation unit for regulating the transmitted power, which is designed to carry out the method according to the invention.

    WIND TURBINE HAVING HELIPLATFORM ARRANGEMENT AND METHOD OF USING SAME
    9.
    发明公开
    WIND TURBINE HAVING HELIPLATFORM ARRANGEMENT AND METHOD OF USING SAME 审中-公开
    具有HELIPLATORM安排的风力涡轮机及其使用方法

    公开(公告)号：EP3296566A1

    公开(公告)日：2018-03-21

    申请号：EP17189691.3

    申请日：2012-02-07

    申请人： MHI Vestas Offshore Wind A/S

    发明人： ABOLFAZLIAN, Mazyar ,  MOGENSEN, Morten

    IPC分类号： F03D80/50 ,  F03D80/60 ,  F03D13/20

    CPC分类号： F03D9/255 ,  B66C23/207 ,  F01D25/12 ,  F03D13/20 ,  F03D80/50 ,  F03D80/60 ,  F03D80/80 ,  F03D80/88 ,  F05B2240/14 ,  F05B2240/916 ,  F05B2260/20 ,  F05B2260/201 ,  Y02B10/30 ,  Y02E10/726 ,  Y02E10/728 ,  Y02T50/675

    摘要： A wind turbine for generating electrical energy may include a tower, a nacelle at the top of the tower, and a rotor coupled to a generator within the nacelle. The wind turbine further includes a cooler including a spoiler and at least one cooler panel projecting above a roof of the nacelle. A heliplatform includes a support structure extending from the nacelle and at least partially integrated with the cooler. The wind turbine may also include a crane coupled to the nacelle and configured to move between a first stowed position underneath the nacelle roof and a second operational position. In the operational position, the crane is selectively positionable over the heliplatform. A method of using the wind turbine and crane is also disclosed.

    摘要翻译： 用于产生电能的风力涡轮机可以包括塔架，位于塔架顶部的机舱以及耦合至机舱内的发电机的转子。 该风力涡轮机还包括冷却器，该冷却器包括扰流器和在机舱的顶部上方突出的至少一个冷却器面板。 直升机平台包括从机舱延伸并且至少部分地与冷却器集成的支撑结构。 风力涡轮机还可以包括起重机，该起重机联接到机舱并构造成在机舱车顶下方的第一收起位置和第二操作位置之间移动。 在操作位置，起重机可选择性地定位在直升机平台上。 还公开了使用风力涡轮机和起重机的方法。