Patents by Inventor Sönke ENGELKEN
Sönke ENGELKEN 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: 11994107Abstract: Provided is a control unit for a converter, in particular of a wind power installation and/or of a wind farm, comprising: an input for receiving a detected voltage and/or a detected current, an input for receiving a voltage set point and/or a current set point, an input for receiving a correction value and a feedback control system which is set up, depending on the detected voltage and/or the detected current and the voltage set point and/or the current set point and the correction value, to produce a reactive power set point for a modulated, preferably amplitude-modulated reactive and/or active power of the converter.Type: GrantFiled: August 10, 2021Date of Patent: May 28, 2024Assignee: Wobben Properties GmbHInventors: Eckard Quitmann, Sönke Engelken
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Patent number: 11774994Abstract: Provided is a control module of a converter, in particular a power converter of a wind power installation, which is configured to control the converter in such a way that the converter emulates a behavior of a synchronous machine, comprising an, in particular internal, control loop which has an, in particular adjustable, virtual admittance by means of which the converter is controlled in order to emulate the behavior of the synchronous machine.Type: GrantFiled: December 10, 2020Date of Patent: October 3, 2023Assignee: Wobben Properties GmbHInventors: Roberto Rosso, Sönke Engelken, Marco Liserre
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Patent number: 11705734Abstract: A wind farm, having a nominal power, for feeding electrical power into a supply network, comprising: wind power installations, a wind farm network and a stabilization unit connected to the wind farm network and arranged between the installations and the supply network. The stabilization unit increases a stability of the wind farm and comprises: an energy storage device which is set up to provide an electrical power, an intermediate circuit which is connected to the storage device and which is set up to conduct at least the electrical power provided by the storage device, an inverter connected to the intermediate circuit and set up to form at least the electrical power provided by the storage device, and a control unit set up to control at least the inverter such that the stabilization unit at the wind farm appears, statically as well as dynamically, like an electromechanical synchronous machine.Type: GrantFiled: August 22, 2019Date of Patent: July 18, 2023Assignee: Wobben Properties GmbHInventors: Roberto Rosso, Sönke Engelken, Marco Liserre
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Patent number: 11646583Abstract: A wind farm for supplying electrical power into a supply grid. The farm includes wind power installations, a farm grid connecting the installations, and a power flow control device. The power flow control device is configured to connect the farm grid and the supply grid such that an electrical power generated by the installations can be supplied into the supply grid. The power flow control device has at least: a DC link configured to conduct at least the electrical power generated by the installations, an electrical energy store connected to the DC link, an inverter connected to the DC link and configured to inject at least the electrical power generated by the installations into the supply grid, and a controller configured to drive the inverter in such a way that the farm, at the supply grid, in the steady state appears to be dynamic like an electromechanical synchronous machine.Type: GrantFiled: August 22, 2019Date of Patent: May 9, 2023Assignee: Wobben Properties GmbHInventors: Roberto Rosso, Sönke Engelken, Marco Liserre
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Patent number: 11585320Abstract: A method for controlling a multiphase separately excited synchronous generator in a wind turbine is provided. The generator has a stator and an armature having an excitation input, connected to an excitation controller, for inputting an excitation current or an excitation voltage. The stator has a stator output, connected to a rectifier, for delivering stator currents. The rectifier is controllable to control the stator currents by detecting a speed of the armature or rotor, determining a setpoint power to be delivered by the generator or the turbine based on the speed, determining an excitation current or voltage based on the detected speed and determined setpoint power, inputting the excitation current or voltage by excitation controller at the excitation input, determining the stator currents as setpoint stator currents based on the speed and the setpoint power, and controlling the rectifier to set the stator currents to the setpoint stator currents.Type: GrantFiled: August 27, 2018Date of Patent: February 21, 2023Assignee: Wobben Properties GmbHInventors: Roberto Rosso, Jair Cassoli, Sönke Engelken, Amgad Eldeib
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Patent number: 11566601Abstract: Provided is a control circuit of a converter, in particular a power converter of a wind power installation, configured to control the converter in such a way that the converter emulates a behavior of a synchronous machine. The control circuit includes a power module for calculating a power change depending on a detected power and a correction module for setting a power set point, in particular for the converter, depending on the calculated power change.Type: GrantFiled: December 1, 2020Date of Patent: January 31, 2023Assignee: Wobben Properties GmbHInventors: Roberto Rosso, Sönke Engelken, Marco Liserre
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Publication number: 20220329069Abstract: Provided is a method for operating an electrical storage station on an electrical supply network. The network has electrical consumers, the storage station, and at least one wind power installation to generate electrical power from wind. The method includes generating electrical power by way of the installation as generated wind power, and feeding a feed-in power into the network. The electrical feed-in power at least results from the generated wind power and a storage power taken up or output by the storage station. The feeding of the feed-in power into the network is controlled depending on a station state of charge and a wind and/or power forecast. Changes in the feed-in power over time are controlled depending on the wind and/or power forecast and a limit gradient is specified to limit the changes in the feed-in power thereto. The limit gradient is specified depending on the wind and/or power forecast.Type: ApplicationFiled: August 20, 2020Publication date: October 13, 2022Inventors: Daniel GAMBOA, Sönke ENGELKEN, Aubai AL KHATIB
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Publication number: 20220049679Abstract: Provided is a control unit for a converter, in particular of a wind power installation and/or of a wind farm, comprising: an input for receiving a detected voltage and/or a detected current, an input for receiving a voltage set point and/or a current set point, an input for receiving a correction value and a feedback control system which is set up, depending on the detected voltage and/or the detected current and the voltage set point and/or the current set point and the correction value, to produce a reactive power set point for a modulated, preferably amplitude-modulated reactive and/or active power of the converter.Type: ApplicationFiled: August 10, 2021Publication date: February 17, 2022Inventors: Eckard QUITMANN, Sönke ENGELKEN
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Publication number: 20220045516Abstract: A wind farm for supplying electrical power into a supply grid. The farm includes wind power installations, a farm grid connecting the installations, and a power flow control device. The power flow control device is configured to connect the farm grid and the supply grid such that an electrical power generated by the installations can be supplied into the supply grid. The power flow control device has at least: a DC link configured to conduct at least the electrical power generated by the installations, an electrical energy store connected to the DC link, an inverter connected to the DC link and configured to inject at least the electrical power generated by the installations into the supply grid, and a controller configured to drive the inverter in such a way that the farm, at the supply grid, in the steady state appears to be dynamic like an electromechanical synchronous machine.Type: ApplicationFiled: August 22, 2019Publication date: February 10, 2022Inventors: Roberto ROSSO, Sönke ENGELKEN, Marco LISERRE
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Publication number: 20220045517Abstract: A wind farm, having a nominal power, for feeding electrical power into a supply network, comprising: wind power installations, a wind farm network and a stabilization unit connected to the wind farm network and arranged between the installations and the supply network. The stabilization unit increases a stability of the wind farm and comprises: an energy storage device which is set up to provide an electrical power, an intermediate circuit which is connected to the storage device and which is set up to conduct at least the electrical power provided by the storage device, an inverter connected to the intermediate circuit and set up to form at least the electrical power provided by the storage device, and a control unit set up to control at least the inverter such that the stabilization unit at the wind farm appears, statically as well as dynamically, like an electromechanical synchronous machine.Type: ApplicationFiled: August 22, 2019Publication date: February 10, 2022Inventors: Roberto ROSSO, Sönke ENGELKEN, Marco LISERRE
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Patent number: 11043817Abstract: A method for feeding electrical power into a three phase electrical power supply network at a network connection point, in particular by means of a wind power installation, using an inverter, comprising the following steps: detecting an electrical network voltage, in particular at the network connection point, determining a virtual generator voltage using a machine model that emulates a behavior of a synchronous machine, preparing the detected network voltage for comparison with the virtual genera-tor voltage, predefining a setpoint current as predefinition for an infeed current as a function of the virtual generator voltage and as a function of the network voltage prepared for comparison, and generating the infeed current depending on the setpoint current and feeding the generated infeed current at the network connection point into the electrical power supply network, wherein preparing the detected network voltage for comparison with the virtual generator voltage comprises transforming the detected network vType: GrantFiled: March 22, 2018Date of Patent: June 22, 2021Assignee: Wobben Properties GmbHInventors: Jair Cassoli, Truong Duc Trung, Roberto Rosso, Sönke Engelken
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Publication number: 20210173423Abstract: Provided is a control module of a converter, in particular a power converter of a wind power installation, which is configured to control the converter in such a way that the converter emulates a behavior of a synchronous machine, comprising an, in particular internal, control loop which has an, in particular adjustable, virtual admittance by means of which the converter is controlled in order to emulate the behavior of the synchronous machine.Type: ApplicationFiled: December 10, 2020Publication date: June 10, 2021Inventors: Roberto Rosso, Sönke Engelken, Marco Liserre
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Publication number: 20210172418Abstract: Provided is a control circuit of a converter, in particular a power converter of a wind power installation, configured to control the converter in such a way that the converter emulates a behavior of a synchronous machine. The control circuit includes a power module for calculating a power change depending on a detected power and a correction module for setting a power set point, in particular for the converter, depending on the calculated power change.Type: ApplicationFiled: December 1, 2020Publication date: June 10, 2021Inventors: Roberto Rosso, Sönke Engelken, Marco Liserre
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Patent number: 10914286Abstract: A method for determining an equivalent wind speed of a rotor blade plane of a wind power installation is provided. The wind power installation has a rotor with rotor blades that have adjustable blade angle. The method includes determining an electric internal power available in the wind power installation depending on a captured electric power and a captured rotational speed of the rotor. The method includes determining the equivalent wind speed depending on the determined available internal power and the captured rotational speed.Type: GrantFiled: February 24, 2017Date of Patent: February 9, 2021Assignee: Wobben Properties GmbHInventor: Sönke Engelken
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Patent number: 10840703Abstract: A method for recording the magnitude and phase of electrical voltage in an electrical three-phase supply network for a fundamental and at least one harmonic is provided. The method includes measuring an electrical three-phase voltage of the supply network, transforming the measured voltage values into polar coordinates using a rotating voltage phasor for the fundamental as a measured reference phasor, and respectively observing values of at least one voltage phasor for the fundamental and of at least one voltage phasor for at least one harmonic to be recorded with the aid of a state observer, and tracking the observed values on the basis of the measured reference phasor.Type: GrantFiled: July 13, 2016Date of Patent: November 17, 2020Assignee: Wobben Properties GmbHInventors: Christian Strafiel, Sönke Engelken, Ingo Mackensen, Stefan Gertjegerdes, William Meli
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Publication number: 20200350842Abstract: A method for controlling a multiphase separately excited synchronous generator in a wind turbine is provided. The generator has a stator and an armature having an excitation input, connected to an excitation controller, for inputting an excitation current or an excitation voltage. The stator has a stator output, connected to a rectifier, for delivering stator currents. The rectifier is controllable to control the stator currents by detecting a speed of the armature or rotor, determining a setpoint power to be delivered by the generator or the turbine based on the speed, determining an excitation current or voltage based on the detected speed and determined setpoint power, inputting the excitation current or voltage by excitation controller at the excitation input, determining the stator currents as setpoint stator currents based on the speed and the setpoint power, and controlling the rectifier to set the stator currents to the setpoint stator currents.Type: ApplicationFiled: August 27, 2018Publication date: November 5, 2020Inventors: Roberto ROSSO, Jair CASSOLI, Sönke ENGELKEN, Amgad ELDEIB
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Publication number: 20200091728Abstract: A method for feeding electrical power into a three phase electrical power supply network at a network connection point, in particular by means of a wind power installation, using an inverter, comprising the following steps: detecting an electrical network voltage, in particular at the network connection point, determining a virtual generator voltage using a machine model that emulates a behavior of a synchronous machine, preparing the detected network voltage for comparison with the virtual genera-tor voltage, predefining a setpoint current as predefinition for an infeed current as a function of the virtual generator voltage and as a function of the network voltage prepared for comparison, and generating the infeed current depending on the setpoint current and feeding the generated infeed current at the network connection point into the electrical power supply network, wherein preparing the detected network voltage for comparison with the virtual generator voltage comprises transforming the detected network vType: ApplicationFiled: March 22, 2018Publication date: March 19, 2020Inventors: Jair CASSOLI, Truong Duc TRUNG, Roberto ROSSO, Sönke ENGELKEN
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Patent number: 10584679Abstract: A method for operating a wind turbine (WEA), which has a generator for supplying electric power to an electric supply grid, is provided. After being operated in a first operating state with a first power output and a first rotational speed, the wind turbine is set to a second operating state with a second power output and a second rotational speed. In order to set the wind turbine to the second operating state, an aerodynamic power output which is available for supply is determined, a target rotational speed is determined from the available output, and a target output to be set for the generator is specified from the target rotational speed.Type: GrantFiled: April 20, 2016Date of Patent: March 10, 2020Assignee: Wobben Properties GmbHInventors: Sönke Engelken, Nikolay Mihov, Angelo Mendonca
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Publication number: 20200049131Abstract: A test method for testing a behavior of a wind farm in response to a frequency event is provided. The wind farm has wind power plants, which supply electrical power to a grid which has a grid voltage and with a grid frequency. Each plant has a frequency mode in which the supplied power is temporarily modified per the grid frequency if a frequency event occurs. In a farm testing mode, if a frequency event occurs, each plant changes its frequency mode and the frequency modes are simultaneously tested to test the behavior of the farm. Each frequency mode uses a test frequency function emulating a frequency event, instead of a measured frequency, and the frequency modes are coordinated such that the plants controlled by a common time start command, start their frequency modes simultaneously, and an identical test frequency function is defined for each of the plants.Type: ApplicationFiled: March 9, 2018Publication date: February 13, 2020Inventors: Wolfgang DE BOER, Kai BUSKER, Sönke ENGELKEN
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Publication number: 20190048853Abstract: A method for determining an equivalent wind speed of a rotor blade plane of a wind power installation is provided. The wind power installation has a rotor with rotor blades that have adjustable blade angle. The said method includes determining an electric internal power available in the wind power installation depending on a captured electric power and a captured rotational speed of the rotor. The method includes and determining the equivalent wind speed depending on the determined available internal power and the captured rotational speed.Type: ApplicationFiled: February 24, 2017Publication date: February 14, 2019Inventor: Sönke ENGELKEN