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11.发明公开公开(公告)号：US20240120740A1
公开(公告)日：2024-04-11
申请号：US18263879
申请日：2022-01-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Bo YIN , Torsten LUND , Gert Karmisholt ANDERSEN , Kouroush NAYEBI , Manoj GUPTA
CPC classification number: H02J3/1878 , F03D7/0284
Abstract: The invention relates to wind turbines, particularly to controlling reactive power exchange between a power grid and a wind power plant. The wind power plant has a plurality of wind turbine generators each having a corresponding power converter with a converter controller. Further, the wind power plant has a power plant transformer with an on load tap changer coupled between the wind power plant and the power grid. The power plant controller is regulating the on load tap changer and is generating reactive component setpoints for the wind turbine generators, when determining a need for production of short-term reactive power due to a sudden change in reactive power measured at the point of common coupling.
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公开(公告)号：US20240035443A1
公开(公告)日：2024-02-01
申请号：US18257580
申请日：2021-12-06
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Rubin PANNI , Kouroush NAYEBI , Jesurathinam Arockia ARUN PRASAD
CPC classification number: F03D7/0284 , H02J3/18 , H02J3/381 , F05B2270/1033 , H02J2300/28
Abstract: The disclosure relates to a method of operating a wind power plant, and related power plant controller and wind power plant. The method comprises determining a first active power at a first operating point and applying a first limit value for a reactive power limit. The method further comprises determining a second active power at a second operating point. The method further comprises, responsive to determining that the second active power meets one or more active power conditions referenced to the first active power, applying a second limit value for the reactive power limit. Applying the second limit value comprises limiting a ramp rate of the reactive power limit. The method further comprises generating control signals for one or more wind turbines to control a collective reactive power output of the wind power plant in accordance with the reactive power limit.
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13.发明申请公开(公告)号：US20200313440A1
公开(公告)日：2020-10-01
申请号：US16307099
申请日：2017-05-31
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj GUPTA , Ravi KUMAR , Kouroush NAYEBI , Vajira Suminda GANEPOLA
Abstract: A power plant control system for a first renewable energy power plant comprising one or more renewable energy generators. The power plant control system comprises receiving means for receiving a power delivery demand from a transmission grid operator; control means configured to control the one or more renewable energy generators of the first renewable energy power plant so as to supply power that targets the received power delivery demand; and communication means configured to transmit a request to one or more further renewable energy power plant control systems to request operation of one or more power compensation units associated with respective ones of the further renewable energy power plants.
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公开(公告)号：US20180363627A1
公开(公告)日：2018-12-20
申请号：US16060104
申请日：2016-12-01
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Kouroush NAYEBI , Jacob Deleuran GRUNNET , Jesper Sandberg THOMSEN
Abstract: There is presented a method for controlling a plurality of wind turbines comprising measuring wind turbine operation parameters in a model relating a plurality of wind turbine parameters to each other, estimating one wind turbine operation parameter value based on the model and the measured remaining wind turbine operation parameter values, providing a reliability parameter value for each wind turbine based on a difference value, said difference value being a difference between the estimated wind turbine operation parameter value, and the measured wind turbine operation parameter value corresponding to the wind turbine operation parameter for which the estimated wind turbine operation parameter value is provided, and controlling the plurality of wind turbines based on the corresponding plurality of reliability parameter values.
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公开(公告)号：US20180135597A1
公开(公告)日：2018-05-17
申请号：US15578176
申请日：2016-05-23
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Kouroush NAYEBI , Mu WEI , Dumitru-Mihai VALCAN , Jesper Sandberg THOMSEN
CPC classification number: F03D7/0284 , F03D7/048 , F05B2270/1033 , F05B2270/1075 , F05B2270/335 , F05B2270/337 , G05B15/02 , Y02E10/723
Abstract: A method and control arrangement are disclosed for controlling power output of a wind power plant (WPP) including a plurality of wind turbine generators (WTGs). The method includes determining that overboosting is required for the WPP to meet a power demand at the WPP, and determining, for at least a first WTG of the plurality of WTGs, a corresponding amount of overboost capacity. The method further includes generating, based on the determined amount of overboost capacity, control signals causing the first WTG to increase its power output through overboosting to thereby fulfill at least a portion of the power demand.
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Patent Agency Ranking
公开(公告)号：US20170025858A1
公开(公告)日：2017-01-26
申请号：US15039379
申请日：2014-11-03
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jorge Martinez GARCIA , Athanasios ROKOFYLLOS , Kouroush NAYEBI
CPC classification number: H02J3/386 , F03D7/0284 , F03D7/048 , F03D9/25 , F03D9/257 , F05B2270/337 , H02J3/1842 , H02J3/46 , H02P9/14 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02E40/16 , Y02E40/22
Abstract: The present invention relates a method of controlling a wind power plant connected to an electrical grid, the wind power plant comprises a power plant controller (350), a plurality of wind turbine generators (1) and a STATCOM (230), with a STATCOM controller, comprises: controlling the plurality of wind turbine generators in a first control mode, with the power plant controller controlling a reactive power production from each of the plurality of wind turbine generators according to a closed loop control scheme, and controlling in a first control mode with a closed loop control scheme a reactive power production from the STATCOM according to a first setpoint dispatched from the power plant controller, and controlling the reactive power production from the STATCOM in a second control mode from the STATCOM controller according to an electrical measurement in the grid, and controlling the plurality of wind turbine generators in a second control mode, with the power plant controller controlling a reactive power production from the plurality of wind turbine generators, according to a feedforward control or a close loop control, based on a second setpoint from the STATCOM controller, and switching between the first control mode and the second control mode when receiving at least one trigger signal. The invention also relates to a wind power plant according to the method.
Abstract translation: 本发明涉及一种控制与电网连接的风力发电厂的方法，该风力发电厂包括一个发电厂控制器（350），多个风力发电机（1）和一个STATCOM（230），带有STATCOM 控制器包括：以第一控制模式控制所述多个风力涡轮发电机，其中所述发电厂控制器根据闭环控制方案控制所述多个风力涡轮发电机中的每一个的无功功率产生，并且在第一控制中控制 闭环控制方案根据从发电厂控制器发出的第一个设定值从STATCOM产生无功功率，并根据STATCOM控制器的电气测量，以第二控制模式从STATCOM控制无功功率产生 并且以第二控制模式控制多个风力涡轮发电机，其中电厂控制器控制 根据来自STATCOM控制器的第二设定点，根据前馈控制或闭环控制，从多个风力涡轮发电机输出无功功率产生，以及当至少接收时在第一控制模式和第二控制模式之间切换 一个触发信号。 本发明还涉及根据该方法的风力发电设备。
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公开(公告)号：US20240421602A1
公开(公告)日：2024-12-19
申请号：US18718374
申请日：2022-10-31
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Dan WU , Mads Rajczyk SKJELMOSE , Kouroush NAYEBI
Abstract: The invention relates to a power plant connected to an electrical grid and a method for controlling the power plant. The power plant comprises one or more power generators and at least one synchronous condenser. The power generators may be wind turbine generators, solar photovoltaic elements or other kinds of renewable power generators. During a deviation in frequency on the electrical grid, the synchronous condenser counteracts the frequency deviation, but it may also unintentional supply active power during the frequency event. The control method is controlling the active power supply from the power generators during the frequency events based only on the active power output from the power generators.
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公开(公告)号：US20210359525A1
公开(公告)日：2021-11-18
申请号：US17286802
申请日：2019-08-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Kouroush NAYEBI , Mu WEl , Torsten LUND , Per LUND
Abstract: Embodiments provide for the control of a power plant including several generators by setting a reference frame for the generators with a first and a second axis; measuring a grid demand voltage at the shared connection point; determining active and reactive currents required at the shared connection point based on the grid demand voltage and grid codes; transforming the active and reactive currents required at the shared connection point to the reference frame where the first axis defines a first current set point and the second axis defines a second current set point; and dispatching the first and second current set points to generator controllers associated with each generator. Current set points may be generated for positive/negative frames, direct quadrature frames, real/imaginary frames and may be set evenly for all generators or adjusted per generator.
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公开(公告)号：US20210167603A1
公开(公告)日：2021-06-03
申请号：US16065591
申请日：2016-12-12
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Dumitru-Mihai VALCAN , Jorge Martinez GARCIA , Kouroush NAYEBI , Jesper Sandberg THOMSEN , Martin Ansbjerg KJÆR
Abstract: A method for controlling a wind power plant comprising a plurality of wind turbine generators, wherein the method comprises: deriving an estimated value for electrical losses in the wind power plant, deriving a measured value for electrical losses in the wind power plant, based on a difference between an aggregated power production from the plurality of wind turbine generators and a power measurement at a point of common coupling; applying the estimated value for electrical losses and the measured value for electrical losses in an active power control loop, comprising a regulator; and controlling by means of the active power control loop an active power production of the wind power plant at the point of common coupling.
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公开(公告)号：US20210143642A1
公开(公告)日：2021-05-13
申请号：US16618689
申请日：2018-05-15
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj GUPTA , Ravi KUMAR , Janakiraman SIVASANKARAN , Mario Dante JARDIEL , Anoop Vijay TIWARI , Kouroush NAYEBI
Abstract: There is provided a method of operating a renewable power plant that is connected to a wider power network by a bus. The method comprises: identifying a predetermined voltage condition of the renewable power plant or of the bus; controlling the renewable power plant to maintain zero reactive power exchange at the bus for a first period; calculating an average voltage level of the bus that was achieved during the first period; and controlling the renewable power plant to maintain the voltage output at a set voltage level for a second period, the set voltage level being substantially equal to the calculated average voltage level. The method ensures that voltage oscillations due to a push-pull phenomenon between a power plant controller and the power network do not upset the stability of the grid.
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