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公开(公告)号：US11431174B2
公开(公告)日：2022-08-30
申请号：US16954045
申请日：2018-11-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj Gupta , Ravi Kumar , Janakiraman Sivasankaran
Abstract: A method of controlling a hybrid power plant connected to a power network, the hybrid power plant having a first renewable energy generator and a second renewable energy generator, the first renewable energy generator being configured to generate power using a different source of renewable energy to the second renewable energy generator. The method comprises: determining a target plant power output for the hybrid power plant; determining a target generator power output for each of the first and second generators based on the target plant power output; determining a respective ramp rate for each of the first and second renewable energy generators based, at least in part, on an attribute of the respective renewable energy generator; and operating each of the first and second renewable energy generators to change its power output to the power network at the determined ramp rate to achieve the target generator power output.
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公开(公告)号：US11336098B2
公开(公告)日：2022-05-17
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：US11025064B2
公开(公告)日：2021-06-01
申请号：US16468251
申请日：2017-11-24
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Ciprian Biris , Manoj Gupta , Henrik Møller , Kouroush Nayebi , Janakiraman Sivasankaran , Mu Wei , Hans Kristian Bjørn
Abstract: A wind power plant system comprising: a plurality of wind turbine generators each having a corresponding generator controller, and a power plant controller for controlling the power generated by the wind power plant system; wherein at least some of the plurality of generator controllers are each configured to: generate a model that indicates the thermal capacity of one or more components of the wind turbine generator, determine power capacity data from the model, said data relating to: at least one reactive power supply level and a corresponding time limit for which that reactive power supply level may be maintained, and transmit to the power plant controller the determined power capacity data, wherein the power plant controller is operable to receive the power capacity data from the plurality of generator controllers and to transmit respective power references to the plurality of generator controllers to control the power generated by the wind power plant system.
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4.发明授权公开(公告)号：US10320196B2
公开(公告)日：2019-06-11
申请号：US15103745
申请日：2014-11-25
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj Gupta , Abdul Saboor
Abstract: In various embodiments of the present disclosure, there is provided a method for increasing the reactive power capability of a wind power plant, in controlling a wind power plant. According to an embodiment, the method includes receiving a reactive power requirement from an electrical grid. The method further includes determining an active power generated by the wind power plant. According to an embodiment, the method includes checking if the reactive power requirement is satisfied by the wind power plant based on the active power generated by the wind power plant. The method further includes controlling the wind power plant to curtail the active power generated by the wind power plant by a curtailment amount when the reactive power requirement is not satisfied, and in response to a grid event. A corresponding wind power plant is further provided.
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公开(公告)号：US10103661B2
公开(公告)日：2018-10-16
申请号：US14345679
申请日：2012-09-27
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Peter Frederick Mayer , Manoj Gupta
IPC: H02P9/00 , H02J3/16 , H02J3/38 , H02P101/15
Abstract: A wind power plant is provided. The wind power plant comprises at least one wind turbine and a power plant controller. The power plant controller is configured to detect whether a grid voltage exceeds a predefined threshold, and if it has detected that the grid voltage exceeds the predefined threshold, the power plant controller sends a reactive power reference to the at least one wind turbine, thereby causing the at least one wind turbine to reduce its reactive power output in response to the reactive power reference.
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Patent Agency Ranking
公开(公告)号：US12113363B2
公开(公告)日：2024-10-08
申请号：US17417060
申请日：2019-11-28
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj Gupta , Kouroush Nayebi , Janakiraman Sivasankaran
CPC classification number: H02J3/18 , G05B15/02 , H02J3/004 , H02J3/381 , H02J13/00002 , H02J2300/22 , H02J2300/28
Abstract: There is provided a method for operating a renewable energy power plant comprising a plurality of renewable energy generators, the method comprising: calculating a rate of change of reactive power reference level for transitioning between a present reactive power reference level, output by a reactive power controller, and a target reactive power reference level, the target reference level being suitable for normal operation of the renewable energy power plant; and, following a fault on a power network to which the renewable energy power plant is connected, dispatching a control signal for controlling the renewable energy power plant to generate or consume reactive power at the calculated rate of change to transition the reactive power level of the renewable energy power plant to the target reactive power reference level.
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公开(公告)号：US10958071B2
公开(公告)日：2021-03-23
申请号：US16956923
申请日：2018-11-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj Gupta , Ravi Kumar , Janakiraman Sivasankaran , Thomas Schmidt Grau , Martin Ansbjerg Kjær , Kouroush Nayebi , John Godsk Nielsen , Jesper Sandberg Thomsen
Abstract: A method for operating a renewable energy power plant comprising a plurality of renewable energy generators. The method comprises: identifying a predetermined condition of the renewable energy power plant, of the grid, or of the connection between the renewable energy power plant and the grid, the predetermined condition indicating a weak grid interconnection between the renewable energy power plant and the grid; and controlling each renewable energy generator in an adaptive active power mode in response to recovery of the grid from a voltage deviation. The adaptive active power mode comprises: determining a thermal capacity of a chopper resistor of the renewable energy generator; calculating, based upon the determined thermal capacity, a limit level of rate of change of active power output that may be implemented by the renewable energy generator; and operating the renewable energy generator to output active power at the calculated rate of change limit level.
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公开(公告)号：US10544780B2
公开(公告)日：2020-01-28
申请号：US15031044
申请日：2014-09-26
Applicant: Vestas Wind Systems A/S
Inventor： Manoj Gupta , Amit Kumar Gupta , Dilip Kumar Guru
IPC: F03D9/00 , F03D7/04 , H02J3/24 , H02H7/30 , H02P9/00 , H02J3/12 , H02J3/38 , F03D7/02 , H02J3/16 , F03D17/00 , F03D9/25 , H02H7/06 , H02P9/10
Abstract: A method for controlling a wind power plant, the wind power plant including a plant controller for controlling a plurality of wind turbine generators. The method for controlling a wind power plant allows the wind power plant to continue operating through a grid fault in a weak grid environment. In the method, a fault recovery process is carried out with a wind turbine power controller during a wind turbine fault recovery state to determine a grid voltage (VWTG), compare the grid voltage to a predetermined reference voltage (Vref) to obtain a difference value, and determine a current reference (QrefVC) based on the difference value for generating a reactive current (Idref) for regulating the grid voltage to the predetermined reference grid voltage. A corresponding wind power plant is further provided.
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公开(公告)号：US20140225370A1
公开(公告)日：2014-08-14
申请号：US14345679
申请日：2012-09-27
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Peter Frederick Mayer , Manoj Gupta
IPC: H02P9/00
CPC classification number: H02P9/00 , H02J3/16 , H02J3/386 , H02P2101/15 , Y02E10/763 , Y02E40/34
Abstract: A wind power plant is provided. The wind power plant comprises at least one wind turbine and a power plant controller. The power plant controller is configured to detect whether a grid voltage exceeds a predefined threshold, and if it has detected that the grid voltage exceeds the predefined threshold, the power plant controller sends a reactive power reference to the at least one wind turbine, thereby causing the at least one wind turbine to reduce its reactive power output in response to the reactive power reference.
Abstract translation: 提供风力发电厂。 风力发电厂包括至少一个风力涡轮机和发电厂控制器。 发电厂控制器被配置为检测电网电压是否超过预定阈值，并且如果已经检测到电网电压超过预定阈值，则发电厂控制器向至少一个风力涡轮机发送无功功率基准，从而导致 所述至少一个风力涡轮机响应于所述无功功率参考来减小其无功功率输出。
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公开(公告)号：US12126178B2
公开(公告)日：2024-10-22
申请号：US17417089
申请日：2019-11-28
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj Gupta , Janakiraman Sivasankaran
CPC classification number: H02J3/381 , F03D7/0284 , F03D7/048 , H02J3/16 , F05B2270/1033 , F05B2270/1071 , F05B2270/337 , H02J2300/28
Abstract: Operating a renewable energy generator forming part of a renewable energy power plant. During a fault experienced by a power network: determining an active current set point to enable a reactive current supply boost at the point of connection between the plant and the network, the active current set point being based on a voltage level associated with the generator and on operational characteristics of the generator, plant, power network and/or connecting network; calculating 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 the generator 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.
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