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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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公开(公告)号：US20200076193A1
公开(公告)日：2020-03-05
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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Patent Agency Ranking
公开(公告)号：US20170025859A1
公开(公告)日：2017-01-26
申请号：US15039514
申请日：2014-11-04
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jorge Martinez GARCIA , Rasmus LÆRKE , Henrik B. MØLLER , Kouroush NAYEBI , Athanasios ROKOFYLLOS , Mu WEI
Abstract: The invention relates to a method for controlling injection and absorption of reactive power in a wind power plant (WPP). In addition to wind turbine generators (WTG), the wind power plant comprises reactive power regulating devices, such as MSU and STATCOM devices. The reactive power regulating devices are controlled by wind power plant controller so that the combined amount of reactive power produced by the wind turbine generators and the reactive power regulating devices satisfies a desired amount of reactive power. In case of communication fault between the power plant controller and one of the reactive power regulating devices, the power plant controller is reconfigured so as to compensate the capability of the reactive power regulating device to inject or absorb the amount of reactive power.
Abstract translation: 本发明涉及一种用于控制风力发电厂（WPP）中无功功率的注入和吸收的方法。 除风力发电机（WTG）外，风力发电厂还包括无功功率调节装置，如MSU和STATCOM装置。 无功功率调节装置由风力发电厂控制器控制，使得由风力发电机和无功功率调节装置产生的无功功率的组合量满足期望的无功功率量。 在发电厂控制器与无功功率调节装置之一发生通讯故障的情况下，对发电厂控制器进行重新配置，以补偿无功功率调节装置注入或吸收无功功率的能力。
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17.发明申请公开(公告)号：US20250154930A1
公开(公告)日：2025-05-15
申请号：US18942308
申请日：2024-11-08
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Mads Rajczyk SKJELMOSE , Kouroush NAYEBI
Abstract: A method and a system for optimizing use of a processing resource in a wind energy installation is disclosed. A plurality of processing resource requiring tasks related to control of the wind energy installation are identified. For each processing resource requiring task, a minimum acceptable service level related to the task, and at least one action which causes a decrease in processing resource consumption related to the task while ensuring that the minimum acceptable service level is met, are defined. The processing resource requiring tasks are ranked, so as to create a prioritized list of processing resource requiring tasks. In the case that a monitored processing load level exceeds a first threshold level, at least one of the processing resource requiring tasks is selected in accordance with the prioritized list, and least one of the actions defined for the at least one selected task is performed.
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18.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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20.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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