公开(公告)号：US11936328B2

公开(公告)日：2024-03-19

申请号：US17270380

申请日：2019-08-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Loránd Demsa ,  Karthikeya Balladi Raghuchandra ,  Jacob Jensen

IPC: H02J3/38 ,  F03D7/02 ,  F03D13/20 ,  F03D80/20 ,  H02S10/12

CPC classification number: H02S10/12 ,  F03D7/0204 ,  F03D7/0224 ,  F03D7/0264 ,  F03D13/22 ,  F03D80/20 ,  H02J3/381 ,  F05B2220/708 ,  H02J2300/28

Abstract: The present disclosure relates to a method of controlling operation of wind turbine generators (WTGs) in a hybrid power plant including both WTGs and PV modules. The method includes steps of: monitoring at least one operating parameter for one or more of the WTGs; monitoring at least one operating parameter for one or more of the PV modules; and controlling operation of the WTGs in dependence on the monitored operating parameters in order to control blade shadows cast by the WTGs on the PV modules and thereby optimise the power output of the PV modules, for example by reducing the blade shadow area cast on the PV modules.

公开(公告)号：US11920556B2

公开(公告)日：2024-03-05

申请号：US17311806

申请日：2019-12-12

Applicant: Vestas Wind Systems A/S

Inventor： Anton Bech

IPC: F03D1/06

CPC classification number: F03D1/0675 ,  F05B2240/302 ,  F05B2260/30

Abstract: A wind turbine blade includes a first blade portion and a second blade portion coupled together by a connection joint. A first spar cap is associated with an upper shell half and a second spar cap is associated with the lower shell half of each of the first and second blade portions. A shear web extends between the first spar cap and the second spar cap of each of the first and second blade portions. The shear web is terminated away from a joint interface at which the first and second blade portions meet, and there is no shear web extending in a longitudinal direction across the joint interface. The shear web extending between the first spar cap and the second spar cap is branched in the longitudinal direction toward the first and second blade interfaces of the first and second blade portions respectively.

公开(公告)号：US11885309B2

公开(公告)日：2024-01-30

申请号：US17294789

申请日：2019-11-06

Applicant: Vestas Wind Systems A/S

Inventor： Erik Eduard Kostandyan ,  Poul T. Tietze ,  Sandra Ann Hoffecker ,  Carsten Krogh Nielsen

IPC: F03D80/60

CPC classification number: F03D80/60 ,  F05B2260/20

Abstract: A wind turbine cooling system comprising a cooling circuit arranged to convey a cooling fluid to and from a heat source, a cooling device arranged to cool the cooling fluid, a 5 pump arranged to circulate the cooling fluid in the cooling circuit, and a cooling fluid tank arranged in fluid connection with the cooling circuit and having a first fluid port adjacent a top of the tank and a second fluid port adjacent a bottom of the tank, wherein the second fluid port is arranged to communicate with the cooling circuit, wherein the pump has an outlet arranged in fluid connection with the cooling circuit and in fluid 10 connection with the tank, and wherein a fluid path between the pump outlet and the tank includes a flow restriction device.

公开(公告)号：US11879431B2

公开(公告)日：2024-01-23

申请号：US17628704

申请日：2020-07-07

Applicant: Vestas Wind Systems A/S

Inventor： Karthik Krishnan Jamuna ,  Igor Kelbas ,  Selvavignesh Vedamanickam ,  Maxime Coulange ,  Jiji Nallathambi Kumaradhas ,  Jesper Errboe Askov ,  Karl H. Svendsen ,  Edgar Anahua ,  Nikolaj Sig Overgaard

IPC: F03D7/02

CPC classification number: F03D7/0224 ,  F03D7/024 ,  F03D7/0292 ,  F03D7/0296 ,  F03D7/0298 ,  F05B2270/328 ,  F05B2270/334

Abstract: There is provided a method (40) of correcting blade pitch in a wind turbine (10) having a tower (12) and a plurality of rotor blades (18). The method (40) comprises: receiving (410) sensor output data from one or more wind turbine sensors (141), the sensor output data including data indicative of excitation of the tower (12) for a plurality of different pitch angles of a particular one of the blades (18); determining (420) a corrected pitch reference of the particular blade (18), the corrected pitch reference corresponding to a minimum tower excitation based on the received sensor output data; and, sending (430) the corrected pitch reference to a pitch actuator system (24) of the particular blade (18).

公开(公告)号：US20240014663A1

公开(公告)日：2024-01-11

申请号：US18252874

申请日：2021-10-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Dan WU ,  Rubin PANNI ,  Henrik MØLLER

IPC: H02J3/38 ,  F03D7/02 ,  F03D7/04 ,  H02J3/24

CPC classification number: H02J3/381 ,  F03D7/0284 ,  F03D7/048 ,  H02J3/241 ,  F05B2270/1033 ,  F05B2270/107 ,  F05B2270/337 ,  H02J2300/24 ,  H02J2300/28 ,  H02J2300/40

Abstract: The invention relates to a method for controlling a power plant during an event which requires a change of the power produced by the power plant, wherein the power plant comprises a plurality of power generating units including at least one wind turbine generator, the method comprises determining the power reference dependent on an available power, changing the power reference to a modified power reference by a power variation in response to detecting a first event, memorizing a power level relating to the actual power production at a time occurrence of the first event, setting a maximum power limit to the memorized power level, limiting the modified power reference to the maximum power limit, and controlling the power produced by the wind turbines in accordance with the limited modified power reference.

公开(公告)号：US20240003334A1

公开(公告)日：2024-01-04

申请号：US18247435

申请日：2021-09-21

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Mu WEI ,  Karthik Krishnan JAMUNA ,  Manas PATANKAR ,  Hugh MCKENZIE ,  Jacob Quan KIDMOSE

IPC: F03D7/04 ,  F03D7/02

CPC classification number: F03D7/048 ,  F03D7/02 ,  F03D7/042

Abstract: Aspects of the present invention relate to a method for controlling one or more wind turbine generators. The method comprises: receiving a trigger signal, and implementing an active power boost mode during a predetermined time period in response to receiving the trigger signal. The active power boost mode comprises: disregarding further trigger signals; and generating one or more upper active power limits for each of the one or more wind turbine generators, wherein, during at least a first portion of the predetermined time period, the one or more upper active power limits are fixed at an active power boost level that is greater than a nominal active power level of the one or more wind turbine generators.

公开(公告)号：US20240003333A1

公开(公告)日：2024-01-04

申请号：US18257965

申请日：2021-12-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Per Hagen NIELSEN ,  Torsten LUND

IPC: F03D7/02 ,  F03D7/04 ,  H02J3/50

CPC classification number: F03D7/0284 ,  F03D7/048 ,  H02J3/50 ,  F05B2270/337 ,  H02J2300/28

Abstract: A method for controlling one or more renewable power generators forming a renewable power plant, and a controller configured to perform the method. In one aspect, plant voltage control is carried out on the basis of a more accurate voltage-reactive power relationship value which is determined dynamically based on grid conditions rather than the conventional approach of the voltage-reactive power relationship being a static value that is based on information provided by a transmission system operator during installation or commissioning of the power plant.

公开(公告)号：US20230421041A1

公开(公告)日：2023-12-28

申请号：US18247732

申请日：2021-09-30

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Thomas Lundgren ANDERSEN ,  Morten LINDHOLM

IPC: H02M1/00 ,  H02M1/12 ,  H02M5/458 ,  F03D13/20

CPC classification number: H02M1/0048 ,  H02M1/0009 ,  H02M1/0043 ,  H02M1/12 ,  H02M5/458 ,  F03D13/201

Abstract: The present invention relates a method for optimizing electrical current in a DC link busbar of a power converter system, wherein the power converter system comprises, a first inverter bridge, connected to the DC link busbar at a first end, the first inverter bridge having a first pulse width modulation signal, and a second inverter bridge, connected to the DC link busbar at a second end, the second inverter bridge having a second pulse width modulation signal, measuring a current flowing in the DC link busbar from the first end to the second end, optimizing the current flowing in the DC link busbar by delaying the first pulse width modulation signal and the second pulse width modulation signal from each other with a carrier delay, the invention also relates to power converter and wind turbine with optimizing electrical current in a DC link busbar.

公开(公告)号：US11855458B2

公开(公告)日：2023-12-26

申请号：US16957080

申请日：2018-11-20

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Leif Svinth Christensen ,  Brian W. Andersen ,  Federico Rueda Londono

IPC: H02J3/16 ,  H02J13/00 ,  H02J3/00 ,  F03D7/02 ,  H02J3/38 ,  H02J3/50

CPC classification number: H02J3/16 ,  F03D7/0284 ,  H02J3/001 ,  H02J3/381 ,  H02J13/00002 ,  H02J13/00006 ,  F05B2270/337 ,  H02J3/50 ,  H02J2300/28

Abstract: A method for controlling a renewable energy generator, the renewable energy generator being connected to a Point of Interconnection of an external power grid by a connecting network, wherein the connecting network has an associated impedance level. The method comprising: monitoring at least one parameter of the connecting network and the voltage level at the Point of Interconnection; generating, during normal operating conditions, at least one current injection profile based upon the at least one measured parameter and a predetermined injection profile; and operating the renewable energy generator, during a grid fault, to output current according to the at least one current injection profile, so as to achieve a current set point at the Point of Interconnection.

公开(公告)号：US11846271B2

公开(公告)日：2023-12-19

申请号：US17774196

申请日：2020-11-20

Applicant: Vestas Wind Systems A/S

Inventor： Torben Ladegaard Baun ,  Jens Demtröder

IPC: F03D80/80 ,  F03D9/25 ,  F03D13/10 ,  F03D13/20 ,  F03D17/00 ,  F03D80/50 ,  H02J3/00 ,  H02J3/38

CPC classification number: F03D80/82 ,  F03D9/25 ,  F03D13/10 ,  F03D13/20 ,  F03D17/00 ,  F03D80/50 ,  H02J3/0073 ,  H02J3/381 ,  F05B2220/706 ,  H02J2300/28

Abstract: A wind turbine nacelle configured for mounting on a wind turbine tower and for supporting a rotor-supporting assembly, the nacelle comprising a main unit, and at least one auxiliary unit. The auxiliary unit accommodates at least one operative component, e.g. a converter, a transformer, an electrolysis cell, or a battery. An operative component having a similar function is accommodated in another auxiliary unit which thereby facilitate shared operation, and easy and fast maintenance or replacement of the operative component.