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    Control system for wind turbine having multiple rotors arranged to control support arm orientation
    1.
    发明授权
    Control system for wind turbine having multiple rotors arranged to control support arm orientation 有权

    公开(公告)号：US10711764B2

    公开(公告)日：2020-07-14

    申请号：US15550330

    申请日：2016-02-12

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： Torben Ladegaard Baun ,  Erik Carl Lehnskov Miranda

    IPC: F03D7/02

    Abstract: The invention is directed to a wind turbine system comprising a first pair of wind turbines mounted to a support structure by a first support arm arrangement, and a second pair of wind turbines mounted to the support structure by a second support arm arrangement. The first and second support arm arrangements are mounted to the support structure at a respective yaw unit so as to yaw about the major axis of the support structure. Moreover, the wind turbine system further includes a control system that is configured to control the yaw angle of each of the first and second support arm arrangements, wherein the control system is configured to identify the presence of a predetermined shutdown condition and, in response, the control system is operable to control the yaw angles of the first support arm arrangement and the second support arm arrangement to a predetermined safe state.

    Wind turbine system with multiple rotors
    2.
    发明授权
    Wind turbine system with multiple rotors 有权

    公开(公告)号：US10982650B2

    公开(公告)日：2021-04-20

    申请号：US16079189

    申请日：2017-02-24

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： Jacob Deleuran Grunnet ,  Erik Carl Lehnskov Miranda

    IPC: F03D7/02 ,  F03D1/02

    Abstract: The invention relates to a wind turbine system (1) with several wind turbine modules (2) mounted to a support structure (3). A control system is configured to determine a lift command (21) for a particular wind turbine module (2′) of the 5 plurality of wind turbines modules (2). The control system is applying the lift command (21) to a corresponding rotor blade pitch adjustment system of the particular wind turbine module (2′) so as to create a lift force (F_up) in the opposite direction of gravity on the particular wind turbine module mounted on the support structure. Providing an upwards lift force on one, or more, particular 10 wind turbine module(s) may reduce, or eliminate, static and/or dynamical loads from the wind turbine module on the support structure.

    Performance monitoring of a multi-rotor wind turbine system
    5.
    发明授权
    Performance monitoring of a multi-rotor wind turbine system 有权

    公开(公告)号：US11187208B2

    公开(公告)日：2021-11-30

    申请号：US16488845

    申请日：2018-02-28

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： Erik Carl Lehnskov Miranda

    IPC: F03D17/00 ,  F03D9/25 ,  F03D1/02 ,  F03D7/02

    Abstract: The invention relates to a method for monitoring performance of a multi-rotor wind turbine. According to the method parameter for each of the wind turbine modules of the multi-rotor wind turbine is obtained. The parameters of each of the wind turbine modules are compared, e.g. by means of a comparison parameter determined from the individual parameters. Dependent on the result of the comparison, a performance action is initiated, e.g. for the purpose of further characterization or verification of a deviating parameter determined via the comparison.

    Control system for damping structural vibrations of a wind turbine system having multiple rotors
    6.
    发明授权
    Control system for damping structural vibrations of a wind turbine system having multiple rotors 有权

    公开(公告)号：US10273939B2

    公开(公告)日：2019-04-30

    申请号：US15550312

    申请日：2016-02-12

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： Torben Ladegaard Baun ,  Erik Carl Lehnskov Miranda ,  Erik Sloth

    IPC: F03D1/02 ,  F03D7/02 ,  F03D9/25 ,  H02K7/18 ,  H02P9/04

    Abstract: A wind turbine system comprising a plurality of wind turbines mounted to a support structure including a tower, wherein each of the plurality of wind turbines includes a rotor and a power generation system driven by the rotor, and at least one of a rotor blade pitch adjustment means and a generator power control means. The system further includes control means that receives vibration data associated with the support structure and which is configured to determine a damping control command for a respective one of the plurality of wind turbines, wherein the or each of the wind turbines includes a damping controller that receives a damping control command and which is operable to apply a damping control input to one or both of the blade pitch adjustment means and the generator power control means so as to counteract the measured vibration of the support structure. A benefit of the invention is that the operation of the multiple turbines of the system is used to reduce the effects of structural vibration by damping that vibration in an active manner.

    Wind turbine system with time distributed transitions
    7.
    发明授权
    Wind turbine system with time distributed transitions 有权

    公开(公告)号：US10808682B2

    公开(公告)日：2020-10-20

    申请号：US16063576

    申请日：2016-12-12

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： Erik Carl Lehnskov Miranda ,  Jacob Deleuran Grunnet ,  Damien Castaignet

    IPC: F03D7/02 ,  F03D7/04 ,  F03D1/02

    Abstract: There is presented a wind turbine system, wherein the wind turbine system is comprising a support structure, a plurality of wind turbine modules mounted to the support structure wherein each of the plurality of wind turbine modules comprises a rotor, and wherein the wind turbine system further comprises a control system, wherein the control is arranged to execute a wind turbine system transition from a first system operational state of the wind turbine system to a second system operational state of the wind turbine system, and wherein the wind turbine system transition is performed by executing a plurality of wind turbine module transitions from a first module operational state of a wind turbine module to a second module operational state of the wind turbine module wherein the plurality of wind turbine module transitions are distributed in time with respect to each other.

    Detecting blade structure abnormalities
    8.
    发明授权
    Detecting blade structure abnormalities 有权

    公开(公告)号：US10161261B2

    公开(公告)日：2018-12-25

    申请号：US14763648

    申请日：2013-02-14

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： Saed Ehsani ,  Erik Carl Lehnskov Miranda ,  Ib Svend Olesen ,  Martin Møller Sørensen

    IPC: F01D21/00 ,  F01D21/14 ,  F03D17/00

    Abstract: To identify abnormal behavior in a turbine blade, a failure detection system generates a “fingerprint” for each blade on a turbine. The fingerprint may be a grouping a dynamic, physical characteristics of the blade such as its mass, strain ratio, damping ratio, and the like. While the turbine is operating, the failure detection system receives updated sensor information that is used to determine the current characteristics of the blade. If the current characteristics deviate from the characteristics in the blade's fingerprint, the failure detection system may compare the characteristics of the blade that deviates from the fingerprint to characteristics of another blade on the turbine. If the current characteristics of the blade are different from the characteristics of the other blade, the failure detection system may change the operational mode of the turbine such as disconnecting the turbine from the utility grid or stopping the rotor.

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