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    WIND ENERGY PARK WITH AIRBORNE WIND ENERGY SYSTEMS AND A DIRECT CURRENT (DC) INTERNAL GRID
    1.
    发明申请
    WIND ENERGY PARK WITH AIRBORNE WIND ENERGY SYSTEMS AND A DIRECT CURRENT (DC) INTERNAL GRID 审中-公开

    公开(公告)号：WO2019141334A1

    公开(公告)日：2019-07-25

    申请号：PCT/DK2019/050025

    申请日：2019-01-22

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： LINDHOLM, Morten ,  NIELSEN, Thomas S. Bjertrup ,  PETERSEN, Torben ,  HELLE, Lars

    IPC: F03D5/06 ,  F03D7/00 ,  H02J3/38 ,  H02J3/16 ,  B64C31/06 ,  H02J3/32

    Abstract: The present invention relates to wind energy park connected to an electrical grid, having airborne wind energy systems (AWES, 100), e.g. with kites (101). The wind energy park (WEP) has an electrical DC network (506) connecting the plurality of AWES and a grid converter unit (504) for converting DC to AC, and transmit AC to the electrical grid. The wind energy park control unit (503) controls the AWES to produce electrical power to the electrical grid by alternating between a power production phase, and a recovery phase so to balance the supply of power to the electrical grid according a demanded setpoint. An advantage is that the grid converter may be smaller, as compared to an AC network, because the power is evened out with the negative power from the AWES being in recovery phase. In this way, the invention stabilises the grid and has a grid forming capability.

    OPERATING A WIND TURBINE DURING SERVICE
    2.
    发明申请
    OPERATING A WIND TURBINE DURING SERVICE 审中-公开

    公开(公告)号：WO2020030235A1

    公开(公告)日：2020-02-13

    申请号：PCT/DK2019/050225

    申请日：2019-07-09

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： DALSGAARD, Søren ,  BAUN, Torben Ladegaard ,  HAMMERUM, Keld ,  PETERSEN, Torben

    IPC: F03D80/50

    Abstract: A method of operating a wind turbine during a service, wherein the wind turbine comprises at least one rotor-nacelle assembly, the or each rotor-nacelle assembly comprising a rotor; the method comprising: detecting that a service is to be or is being carried out on the wind turbine; and, on detecting that a service is to be or is being carried out on the wind turbine, reducing an operating level of the or each rotor-nacelle assembly.

    ELECTRICAL RECOMBINATION
    4.
    发明申请
    ELECTRICAL RECOMBINATION 审中-公开
    电气重组

    公开(公告)号：WO2017198268A1

    公开(公告)日：2017-11-23

    申请号：PCT/DK2017/050154

    申请日：2017-05-16

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： TRANKJÆR, Søren Viisholm ,  HELLE, Lars ,  PETERSEN, Torben

    IPC: F03D1/00 ,  F03D1/02 ,  F03D9/25 ,  F03D80/80 ,  H02J3/38 ,  H02M5/40

    Abstract: Aspects of the present disclosure are generally directed to configurations of power conversion systems for wind turbine generators. For example, certain aspects are directed to a multi-rotor wind turbine. The multi-rotor wind turbine generally includes a plurality of rotors, each coupled to a plurality of electrical generators, one or more machine-side converters, MSCs, coupled to the electrical generators of each of the plurality of rotors and configured to generate at least one direct-current, DC, signal, and one or more line-side converters, LSCs, coupled to the MSCs and configured to generate at least one AC signal based on the at least one DC signal.

    Abstract translation: 本公开的各方面总体上针对风力涡轮发电机的功率转换系统的配置。 例如，某些方面针对多转子风力涡轮机。 多转子风力涡轮机通常包括多个转子，每个转子联接到多个发电机，一个或多个机器侧转换器MSC，联接到多个转子中的每个转子的发电机，并且构造成至少产生 一个直流DC信号以及一个或多个线路侧转换器LSC，所述线路侧转换器LSC耦合到所述MSC并被配置为基于所述至少一个DC信号生成至少一个AC信号。

    CONSTANT TORQUE CONTROL OF A WIND TURBINE USING AN ENERGY STORAGE SYSTEM
    5.
    发明申请
    CONSTANT TORQUE CONTROL OF A WIND TURBINE USING AN ENERGY STORAGE SYSTEM 审中-公开

    公开(公告)号：WO2019114894A1

    公开(公告)日：2019-06-20

    申请号：PCT/DK2018/050291

    申请日：2018-11-08

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： NETO, Julio Xavier Vianna ,  TARNOWSKI, Germán Claudio ,  BLUMENSAAT, Mads ,  PETERSEN, Torben ,  DALSGAARD, Søren

    IPC: F03D7/02 ,  F03D9/11

    CPC classification number: F03D9/11 ,  F03D7/0272

    Abstract: A method for controlling a wind turbine (2) is disclosed. During full load operation, a power reference value, P ref , representing a power level to be supplied to the power grid by the wind turbine (2), is received, and the wind turbine (2) is controlled in order to produce an output power which is at or near the power reference value, P ref , while maintaining a constant torque on the generator (6). In the case that the produced output power of the wind turbine (2) exceeds the power reference value, P ref , excess produced energy is stored in the energy storage system (10), and in the case that the produced output power of the wind turbine (2) is below the power reference value, P ref , stored energy is retrieved from the energy storage system (10). A power level being equal to the power reference value, P ref , is supplied to the power grid.

    ROTATING TRANSFORMER AND INDUCTIVE COUPLING
    6.
    发明申请
    ROTATING TRANSFORMER AND INDUCTIVE COUPLING 审中-公开
    旋转变压器和电感耦合

    公开(公告)号：WO2017198269A1

    公开(公告)日：2017-11-23

    申请号：PCT/DK2017/050155

    申请日：2017-05-16

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： TRANKJÆR, Søren Viisholm ,  HELLE, Lars ,  PETERSEN, Torben

    IPC: H01F38/14 ,  H02J3/38

    Abstract: Aspects of the present disclosure are generally directed to using a rotary transformer to transfer power for a wind turbine generator. Certain aspects of the present disclosure are directed to a multi-rotor wind turbine. The multi-rotor wind turbine generally includes a plurality of rotors, a plurality of electrical generators, each coupled to one of the plurality of rotors, and one or more rotary transformers configured to transfer power between the electrical generators and a power grid. In some aspects, each rotary transformer comprises a first winding coupled to one or more electrical generators of the plurality of electrical generators, and a second winding magnetically coupled to the first winding and coupled to the power grid, wherein the first winding is rotatable with respect to the second winding.

    Abstract translation: 本公开的各方面通常涉及使用旋转变压器来传输用于风力涡轮发电机的功率。 本公开的某些方面涉及多转子风力涡轮机。 多转子风力涡轮机通常包括多个转子，多个发电机，每个发电机耦合到多个转子中的一个，以及一个或多个旋转变压器，配置为在发电机和电网之间传输电力。 在一些方面，每个旋转变压器包括耦合到所述多个发电机中的一个或多个发电机的第一绕组以及磁耦合到所述第一绕组并耦合到所述电力网的第二绕组，其中所述第一绕组可相对于所述第一绕组 到第二圈。

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