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公开(公告)号：WO2020259774A1
公开(公告)日：2020-12-30
申请号：PCT/DK2020/050181
申请日：2020-06-22
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： CAPONETTI, Fabio , NICHOLS, James Alexander , ROWLINSON, Benjamin
IPC: F03D7/02
Abstract: There is provided a method (70) of controlling power output of a wind turbine (10) at below-rated wind speed, the method (70) comprising: determining (710) an indication of blade torsion of one or more rotor blades (18) of the wind turbine (10) in dependence on wind speed and/or rotor speed; determining (720) a torsion-corrected blade pitch based on the indication of blade torsion; and using (730) the torsion-corrected blade pitch to control pitch the one or more rotor blades (18).
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公开(公告)号：WO2020249173A1
公开(公告)日：2020-12-17
申请号：PCT/DK2020/050156
申请日：2020-05-29
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： MARCO, Frank , FRANZ, Michael , SCHELCH, Gernot
Abstract: A method for controlling wind turbines (2) of a wind farm (1) is disclosed. The wind farm (1) is positioned at a site which includes one or more turbulence generating structures, such as hills (3, 7), valleys (6), trees (8) or buildings (9). A wind direction (4) at the site of the wind farm (1) is detected, and one or more upstream wind turbines (2a) and one or more downstream wind turbines (2b) are identified, based on the detected wind direction, where each of the upstream wind turbines (2a) is arranged in front of one or more of the downstream wind turbines (2b), as seen in the wind direction (4). If it is detected that turbulent wind conditions are occurring, based on measurements performed by the wind turbines (2) of the wind farm (1), then at least one of the upstream wind turbines (2a) is controlled based on measurements performed by at least one wind turbine which is a downstream wind turbine (2b) relative to the upstream wind turbine (2a).
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公开(公告)号：WO2020239178A1
公开(公告)日：2020-12-03
申请号：PCT/DK2020/050148
申请日：2020-05-26
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： THOMSEN, Jesper Sandberg , COUCHMAN, Ian , BRO, Morten
IPC: F03D7/02
Abstract: The present invention relates to a rotor control system for actuating pitch of pitch adjustable rotor blades of a wind turbine in order to reduce edgewise blade vibrations. The system comprises a pitch actuation unit being arranged to receive a torsional vibration signal and apply a filter to the torsional vibration signal to couple the torsional vibration signal to an edgewise vibration of the rotor blades. An m-blade coordinate transformation, such as the Coleman transformation, is applied to the filtered torsional vibrational signal to obtain pitch modification signals.
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公开(公告)号：WO2020239177A1
公开(公告)日：2020-12-03
申请号：PCT/DK2020/050147
申请日：2020-05-26
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： THOMSEN, Jesper Sandberg , BRO, Morten , COUCHMAN, Ian
IPC: F03D7/02
Abstract: The present invention relates to a rotor control system for actuating pitch of pitch adjustable rotor blades of a wind turbine in order to reduce edgewise blade vibrations. The system comprises a pitch actuation unit being arranged to receive an edgewise load signal and apply m-blade coordinate transformations, such as the Coleman transformations, to the edgewise load signal. Based on a selected signal component at either a backward whirling frequency or a forward whirling frequency, a modified modification signal is obtained.
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公开(公告)号：WO2020177825A1
公开(公告)日：2020-09-10
申请号：PCT/DK2020/050051
申请日：2020-02-25
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： BAUN, Torben Ladegaard , NEUBAUER, Jesper Lykkegaard
IPC: F03D13/25
Abstract: A longitudinal structure (10), e.g. a monopile, for an offshore wind turbine (9) is disclosed. The longitudinal structure (10) comprises an outer wall enclosing a hollow interior (5), the outer wall comprising a first region (17) in which the outer wall is solid and a second region (1) in which the outer wall is provided with a plurality of passages (4) allowing fluid to pass to and from the hollow interior (5) of the longitudinal structure (10). The passages (4) have a non-circular elliptic shape with the major axis arranged substantially along a longitudinal direction (6) of the longitudinal structure (10). The passages (4) are arranged relative to each other in such a manner that a plurality of first passage-free areas (7) and a plurality of second passage-free areas (8) are formed on the outer wall of the second region (1), where each of the first passage-free areas (7) extends along a direction being parallel to the longitudinal direction (6) of the longitudinal structure (10), and each of the second passage-free areas (8) extends along a direction forming an angle with the longitudinal direction (6) of the longitudinal structure (10), said angle being within range of 30° to 60°.
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Patent Agency Ranking76.发明申请
公开(公告)号：WO2020135909A1
公开(公告)日：2020-07-02
申请号：PCT/DK2019/050410
申请日：2019-12-18
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： KOFMAN, Joris , EGSTRØM, Michael
Abstract: A tagline control system for handling a wind turbine component during an operation on a wind turbine using a lifting apparatus. The tagline control system includes a tagline control module (74, 164) having a housing (80), at least two winches (126,128) disposed within the housing and each having a tagline cable (130, 132), a controller (146) disposed within the housing and operatively coupled to the at least two winches, and a power source (148) disposed within the housing (80) and operatively coupled to the at least two winches. A method of handling a wind turbine component during an operation on a wind turbine using the lifting apparatus includes coupling the tagline control module to the lifting apparatus and to a wind turbine component, and operating the tagline control system to effectuate the position of the wind turbine component.
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公开(公告)号：WO2020135906A1
公开(公告)日：2020-07-02
申请号：PCT/DK2019/050402
申请日：2019-12-17
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： KOFMAN, Joris , EGSTRØM, Michael
Abstract: The invention provides a lifting assembly comprising a support structure (4) arranged to support a load (2) suspended from the support structure, a guide line (501) arranged to extend from a first location, to a second location, a wheel assembly (601) with one or more wheels (621, 622, 623) arranged to engage, and roll along, the guide line (501), and a control line assembly (701) arranged to extend from the wheel assembly (601) to the load (2), wherein the lifting assembly comprises a retainer (801) arranged to connect, between the first and second locations, the guide line (501) to the support structure (4).
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公开(公告)号：WO2020125894A1
公开(公告)日：2020-06-25
申请号：PCT/DK2019/050397
申请日：2019-12-17
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： ROED, Carsten , SLEJ, Jan
IPC: F03D80/40
Abstract: A wind turbine comprising a plurality of wind turbine blades, a blade anti-ice system including a blade heating arrangement associated, wherein the anti-ice system includes a 5 control system and a power supply configured to provide power to the blade heating arrangement, characterised in that the power supply comprises a power converter. A benefit of using a power converter to supply electrical power to the heating devices is that power can be applied in a stepless manner. A much finer degree of control is therefore achieved over the thermal energy applied to the blade since the power can be ramped up 10 gradually as the system controller determines that the icing conditions are becoming more severe. As a result of the use of the power converter, the magnitude of thermal energy that is applied to the blade can be increased gradually and smoothly. [Figure 3] 15
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公开(公告)号：WO2020125882A1
公开(公告)日：2020-06-25
申请号：PCT/DK2019/050371
申请日：2019-11-28
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： GUPTA, Manoj , SIVASANKARAN, Janakiraman
Abstract: There is provided a method (400) for operating a renewable energy generator (14) forming part of a renewable energy power plant (12), the renewable energy power plant (12) being connected to a power network (16) at a point of connection (20) by a high impedance connecting network (18), the method (400) comprising: during a fault experienced by the power network (16): determining (404) an active current set point to enable a reactive current supply boost at the point of connection (20), the active current set point being based on a voltage level associated with the renewable energy generator (14) and on operational characteristics of the renewable energy generator (14), renewable energy power plant (12), power network (16) and/or connecting network (18); calculating (406) a time period for the reactive current boost, the time period being the maximum time that the active current set point can be maintained for; and controlling (408) the renewable energy generator (14) during the calculated time period to alter active current output to the determined active current set point, thereby providing the reactive current supply boost at the point of connection (20).
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公开(公告)号：WO2020119871A1
公开(公告)日：2020-06-18
申请号：PCT/DK2019/050381
申请日：2019-12-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： SMITH, Jonathan , PRESTON, Robert Charles
Abstract: A method of forming a wind turbine blade shear web flange section (36) by resin transfer moulding comprises providing a mould assembly (84) comprising a mould surface (86) defining a mould cavity and arranging a plurality of elongate flange elements (46) with the mould surface in an array (80) such that the flange elements are positioned one on top of another with first and second longitudinal ends (56,60) of each flange element longitudinally offset from respective first and second longitudinal ends of a neighbouring flange element so as to form a tapered portion (58,62) at each of a first and second longitudinal end of the flange section (36). The method further comprises injecting resin to the mould cavity and curing the array of flange elements in a resin matrix to form a cured flange section having a laminate construction.
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