Patents by Inventor Henrik Møller
Henrik Møller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12166356Abstract: 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.Type: GrantFiled: October 19, 2021Date of Patent: December 10, 2024Assignee: VESTAS WIND SYSTEMS A/SInventors: Dan Wu, Rubin Panni, Henrik Møller
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Patent number: 12155220Abstract: The invention relates to a method for providing power ramp rate control of a hybrid power plant with a plurality of energy assets including wind turbine generators and possibly solar power units, and an energy storage unit. Each energy asset has a ramp rate capability defined as the highest possible ramp rate at a given time, and the method includes receiving from each energy asset the corresponding ramp rate capability, and taking into account the ramp rate capabilities from the energy assets when calculating the power setpoint to each energy asset, so as to improve the power ramp rate control of the hybrid power plant.Type: GrantFiled: March 5, 2021Date of Patent: November 26, 2024Assignee: VESTAS WIND SYSTEMS A/SInventors: Mads Rajczyk Skjelmose, Henrik Møller, Kouroush Nayebi
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Publication number: 20240097486Abstract: Aspects of the present invention relate to a method for controlling active power output of a renewable energy power plant comprising one or more renewable energy generators. Aspects of the invention may be used to control the active power output of a wind energy power plant and to determine accurate estimates of the available active power when the frequency level of the connected power network is outside of the frequency deadband.Type: ApplicationFiled: January 3, 2022Publication date: March 21, 2024Inventors: Rubin PANNI, Henrik MØLLER
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Patent number: 11936188Abstract: The invention relates to a hybrid power plant for producing power to the electrical grid, the hybrid power plant comprising a plurality of energy assets; a first renewable power generating unit, such as wind turbine generators, a second renewable power generating unit, such as a plurality of solar power units, and an energy storage unit, such as a battery energy storage system. A power plant controller is arranged to perform a first comparison of an active power reference with an available power from the first and the second renewable power generating units and performing a second comparison of available charging, or discharging, capability of the energy storage unit with said first comparison. In response to this first comparison, set points are distributed to the first and the second renewable power generating units so as to deliver power from the hybrid power plant in accordance with the received active power reference.Type: GrantFiled: September 10, 2019Date of Patent: March 19, 2024Assignee: VESTAS WIND SYSTEMS A/SInventors: Henrik Møller, Mads Rajczyk Skjelmose
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Publication number: 20240014663Abstract: 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.Type: ApplicationFiled: October 19, 2021Publication date: January 11, 2024Inventors: Dan WU, Rubin PANNI, Henrik MØLLER
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Publication number: 20230411966Abstract: The invention relates to a method for providing power ramp rate (RR) control of a hybrid power plant (100) with a plurality of energy assets (EA1, EA2, EA3) including wind turbine generators (WTG1, WTG2, WTG3) and possibly solar power units (PV1, PV2, PV3, 102), and an energy storage unit (ESU), Each energy asset has a ramp rate capability (RRC_i) defined as the highest possible ramp rate at a given time, and the method includes receiving from each energy asset the corresponding ramp rate capability, and taking into account the plurality of ramp rate capabilities from the energy assets when calculating the power setpoint (Pset_i) to each energy asset, so as to improve the power ramp rate (RR) control of the hybrid power plant (100).Type: ApplicationFiled: March 5, 2021Publication date: December 21, 2023Inventors: Mads Rajczyk Skjelmose, Henrik Møller, Kouroush Nayebi
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Patent number: 11626739Abstract: The invention relates to a hybrid power plant for producing power to the electrical grid, the hybrid power plant comprising a plurality of energy assets; a first renewable power generating unit, such as wind turbine generators, and an energy storage unit, preferably a battery energy storage system. The hybrid power plant has a power plant controller arranged to communicate with the plurality of energy assets, and, when an under-frequency event occurs, the energy storage unit provides frequency support during the under-frequency event by providing additional power as a function of a state of charge of the energy storage unit at the time when the under-frequency event occurs. Thus, during an under-frequency event, it is possible to obtain a more stable power output from the hybrid power plant.Type: GrantFiled: November 28, 2019Date of Patent: April 11, 2023Assignee: VESTAS WIND SYSTEMS A/SInventors: Mads Rajczyk Skjelmose, Henrik Møller
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Publication number: 20230059875Abstract: Aspects of the present invention relate to a method of controlling a renewable power plant comprising a plurality of renewable power generators electrically connected by a local network and configured to supply active power to a main network. The method comprises: in response to receiving a signal requesting substantially zero active power supply to the main network: categorizing a generator as power-supplying, and the remaining generators as power-consuming; operating the power-consuming generators to generate no active power and to have their auxiliary systems draw power from the local network; and operating the power-supplying generator to supply active power to the local network such that the plant supplies substantially zero active power to the main network.Type: ApplicationFiled: January 19, 2021Publication date: February 23, 2023Inventors: Arne BARON, Mu WEI, Nils PELZER, Ulf CLAUSEN, Henrik MØLLER, Kasper ZINCK, Kent TANGE, Martin Møller SØRENSEN, Rui WU
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Patent number: 11401917Abstract: The invention relates to a power plant controller for controlling wind turbine generators. More particularly, the invention relates to a method for compensating data obtained from measurements at a connection point to the grid in case of a communication failure where communication of such data is lost or becomes unreliable. The measured data are used in the power plant controller for determining setpoints for controlling the wind turbine generators' production of active and reactive power. In response to detection of a communication fault a new setpoint is determined independently of new measured grid data by reconfiguring parts of the power plant controller.Type: GrantFiled: December 20, 2019Date of Patent: August 2, 2022Assignee: VESTAS WIND SYSTEMS A/SInventors: Jorge Martinez Garcia, Rasmus Lærke, Henrik Møller, Kouroush Nayebi, Rubin Panni, Chun Meng Heng
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Publication number: 20220224118Abstract: The invention relates to a method for controlling a power plant for providing frequency support to a power grid. The power plant comprises an electrical storage unit and a power generating system comprising one or more power generating units including at least one wind turbine generator. The method comprises setting a frequency control period, wherein the electrical storage unit is scheduled to charge or discharge according to a first power set-point and at the start of the frequency control period, charging or discharging the electrical storage unit according to the power set-point. In case of a frequency deviation, a power change of the power from the electrical storage unit is determined based on the frequency deviation. Frequency support is provided by controlling the electrical storage unit to charge or discharge according to a second power set-point determined from the power change.Type: ApplicationFiled: August 20, 2020Publication date: July 14, 2022Inventors: Mads Rajczyk SKJELMOSE, Kouroush NAYEBI, Henrik MØLLER
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Publication number: 20220060025Abstract: The invention relates to a hybrid power plant for producing power to the electrical grid, the hybrid power plant comprising a plurality of energy assets; a first renewable power generating unit, such as wind turbine generators, and an energy storage unit, preferably a battery energy storage system. The hybrid power plant has a power plant controller arranged to communicate with the plurality of energy assets, and, when an under-frequency event occurs, the energy storage unit provides frequency support during the under-frequency event by providing additional power as a function of a state of charge of the energy storage unit at the time when the under-frequency event occurs. Thus, during an under-frequency event, it is possible to obtain a more stable power output from the hybrid power plant.Type: ApplicationFiled: November 28, 2019Publication date: February 24, 2022Inventors: Mads Rajczyk SKJELMOSE, Henrik MØLLER
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Patent number: 11177646Abstract: A wind turbine generator controller is described. The controller comprises switching circuitry, for selectively activating and deactivating one or more transducer circuits, and overcurrent detection circuitry, for detecting an overcurrent state in relation to one or more of the transducer circuits. The switching circuitry is responsive to the detection on an overcurrent state to selectively deactivate one or more of the transducer circuits.Type: GrantFiled: December 11, 2017Date of Patent: November 16, 2021Assignee: VESTAS WIND SYSTEMS A/SInventors: Karl Axel Pétursson, Lars Rohrmann Andersen, Jesper Holm, Henrik Møller Ravn, David Steele, Arne Gormsen
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Publication number: 20210336443Abstract: The invention relates to a hybrid power plant for producing power to the electrical grid, the hybrid power plant comprising a plurality of energy assets; a first renewable power generating unit, such as wind turbine generators, a second renewable power generating unit, such as a plurality of solar power units, and an energy storage unit, such as a battery energy storage system. A power plant controller is arranged to perform a first comparison of an active power reference with an available power from the first and the second renewable power generating units and performing a second comparison of available charging, or discharging, capability of the energy storage unit with said first comparison. In response to this first comparison, there are distributed set points to the first and the second renewable power generating units so as to deliver power from the hybrid power plant in accordance with the received active power reference.Type: ApplicationFiled: September 10, 2019Publication date: October 28, 2021Inventors: Henrik MØLLER, Mads Rajczyk SKJELMOSE
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Patent number: 11025064Abstract: 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.Type: GrantFiled: November 24, 2017Date of Patent: June 1, 2021Assignee: VESTAS WIND SYSTEMS A/SInventors: Ciprian Biris, Manoj Gupta, Henrik Møller, Kouroush Nayebi, Janakiraman Sivasankaran, Mu Wei, Hans Kristian Bjørn
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Publication number: 20210098992Abstract: The present invention relates to a state machine for controlling a wind power plant (WPP), comprising at least one wind turbine connected to an electrical grid, the state machine is adapted to, receive a plant power reference (P_total) according to at least one electrical value of the electrical grid, manage a plurality of control modes and output signals, in relation to the plurality of control modes, select within the control modes, according to controller inputs and contingency at that moment in time, transfer the corresponding control values to a power controller, and dispatch a power reference to each of the at least one wind turbines according to the selected control mode. The invention also relates to a control system arranged to control power output of a wind power plant (WPP), comprising at least one wind turbine connected to an electrical grid, and the control system having a state machine.Type: ApplicationFiled: April 9, 2018Publication date: April 1, 2021Inventors: Rodrigo GARCIA, Naveen Kumar BOGGARPU, Jorge Martinez GARCIA, Kouroush NAYEBI, Mu WEI, Dumitru-Mihai VALCAN, Henrik MØLLER, Jacob Barsøe KJÆRGAARD
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Publication number: 20200132046Abstract: The invention relates to a power plant controller for controlling wind turbine generators. More particularly, the invention relates to a method for compensating data obtained from measurements at a connection point to the grid in case of a communication failure where communication of such data is lost or becomes unreliable. The measured data are used in the power plant controller for determining setpoints for controlling the wind turbine generators' production of active and reactive power. In response to detection of a communication fault a new setpoint is determined independently of new measured grid data by reconfiguring parts of the power plant controller.Type: ApplicationFiled: December 20, 2019Publication date: April 30, 2020Inventors: Jorge Martinez GARCIA, Rasmus LÆRKE, Henrik MØLLER, Kouroush NAYEBI, Rubin PANNI, Chun Meng HENG
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Patent number: 10619624Abstract: The invention relates to a method for operating a group of wind turbines in a wind power plant coupled to a utility grid, comprising the steps of determining that a wind turbine should be deactivated in response to receiving a power curtailment command from the grid, and retrieving data from each wind turbine in the group of wind turbines. Further, the method comprises ranking all the wind turbines according to a set of ranking criteria and based on the retrieved data, and selecting a wind turbine to be deactivated based on the ranking. Further, the steps of data retrieval and ranking of all the wind turbines including any deactivated wind turbines in the group are repeated at time intervals, and the wind turbine to be deactivated is re-selected based on this updated ranking.Type: GrantFiled: November 11, 2015Date of Patent: April 14, 2020Assignee: VESTAS WIND SYSTEMS A/SInventor: Henrik Møller
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Publication number: 20200091703Abstract: A wind turbine generator controller is described. The controller comprises switching circuitry, for selectively activating and deactivating one or more transducer circuits, and overcurrent detection circuitry, for detecting an overcurrent state in relation to one or more of the transducer circuits. The switching circuitry is responsive to the detection on an overcurrent state to selectively deactivate one or more of the transducer circuits.Type: ApplicationFiled: December 11, 2017Publication date: March 19, 2020Inventors: Karl Axel PÉTURSSON, Lars Rohrmann ANDERSEN, Jesper HOLM, Henrik Møller RAVN, David STEELE, Arne GORMSEN
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Publication number: 20200076193Abstract: 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.Type: ApplicationFiled: November 24, 2017Publication date: March 5, 2020Inventors: Ciprian BIRIS, Manoj GUPTA, Henrik MØLLER, Kouroush NAYEBI, Janakiraman SIVASANKARAN, Mu WEI, Hans Kristian BJØRN
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Patent number: 10539117Abstract: The invention relates to a power plant controller for controlling wind turbine generators. More particularly, the invention relates to a method for compensating data obtained from measurements at a connection point to the grid in case of a communication failure where communication of such data is lost or becomes unreliable. The measured data are used in the power plant controller for determining setpoints for controlling the wind turbine generators' production of active and reactive power. In response to detection of a communication fault a new setpoint is determined independently of new measured grid data by reconfiguring parts of the power plant controller.Type: GrantFiled: November 7, 2014Date of Patent: January 21, 2020Assignee: VESTAS WIND SYSTEMS A/SInventors: Jorge Martinez Garcia, Rasmus Lærke, Henrik Møller, Kouroush Nayebi, Rubin Panni, Chun Meng Heng