Patents by Inventor Johannes Brombach

Johannes Brombach 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).

  • Patent number: 12066474
    Abstract: A method for detecting low-frequency oscillations, in particular subsynchronous resonances, in an electrical supply grid is provided. The grid has a line voltage with a rated line frequency. The method comprises recording first and second series of measurements each for performing a frequency analysis (FFT). The method includes performing a lower frequency analysis for the first series for a lower frequency range and forming a lower amplitude spectrum. The method includes performing an upper frequency analysis for the second series for an upper frequency range and forming an upper amplitude spectrum. The method includes testing whether a low-frequency oscillation component can be identified in the lower amplitude spectrum, and testing whether a low-frequency oscillation component can be identified in the upper amplitude spectrum, where the presence of a low-frequency oscillation is assumed when a low-frequency oscillation component is identified in at least one of the lower and upper amplitude spectra.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: August 20, 2024
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 12057702
    Abstract: Provided is a method for monitoring a three-phase electricity supply grid. The grid has a topology with spatially distributed grid nodes. Grid nodes are in the form of observation nodes at each of which at least one voltage is acquired in terms of absolute value and phase. The method includes acquiring in each case at least one node voltage at each observation node, where each node voltage has is a node phase angle as phase angle of the node voltage, and each node phase angle describes a respective phase angle with respect to a reference phase angle of a voltage. The method includes ascertaining at least one phase angle relationship that describes a relationship between at least two of the node phase angles distributed over the grid topology, and checking the electricity supply grid for a grid disturbance on the basis of the at least one phase angle relationship.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: August 6, 2024
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 12025102
    Abstract: The invention relates to a controller for a wind turbine with an operating software for operating the wind turbine, wherein the operating software is set up to regulate or control at least an electrical output of a wind turbine generator, a speed of a wind turbine rotor, an azimuth angle of a wind turbine nacelle, and a pitch angle of at least one rotor blade of the wind turbine rotor, wherein the operating software comprises a core module and at least one customer application. The customer application is set up to determine a parameter, in particular a control variable, in particular a target value, depending on at least one function of the customer application, and provide it for the core module.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: July 2, 2024
    Assignee: Wobben Properties GmbH
    Inventors: Johannes Brombach, Swantje Amelsberg, Helge Giertz, Alexander Poolmann
  • Patent number: 12021477
    Abstract: Provided is a method for controlling a wind turbine for feeding electrical power into an electrical supply grid. The turbine comprises a tower, a nacelle, an aerodynamic rotor, a generator coupled to the aerodynamic rotor and intended for generating power from wind, a power unit for controlling the generator for controlling power output by the generator and/or for controlling a generator torque and a feed-in unit for feeding the power output by the generator or part thereof into the electrical supply grid. The method comprises controlling the turbine such that, in normal operation, a feed-in power is fed into the electrical supply grid in dependence on the wind and changing the feed-in power in dependence on a grid state and/or a grid demand of the electrical supply grid such that a specifiable mechanical, in particular momentary, loading limit of the turbine is maintained.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: June 25, 2024
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 11994110
    Abstract: Provided is a method for controlling an electrical installation, in particular a wind power installation or a wind farm. The method includes determining a specific location within an electrical supply network to which the electrical installation is electrically connected via the electrical supply network, determining an electrical variable which maps an electrical distance between the electrical installation and the specific location and ascertaining a potential reactive power of the electrical installation for the specific location depending on the electrical variable which maps an electrical distance between the electrical installation and the specific location.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: May 28, 2024
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 11955798
    Abstract: Provided is a method for controlling at least two frequency-converter-based infeeders. The method includes specifying a first droop for a first frequency-converter-based infeeder and specifying a second droop for a second frequency-converter-based infeeder, where the second droop is different from the first droop. The method includes, controlling the first frequency-converter-based infeeder in dependence on the first droop, and controlling the second frequency-converter-based infeeder in dependence on the second droop.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: April 9, 2024
    Assignee: Wobben Properties GmbH
    Inventors: Johannes Brombach, Ingo Mackensen, Kai Busker, Hanna Emanuel
  • Patent number: 11952982
    Abstract: A method for providing a requested real power including receiving the requested real power at a transmission feed-in point; using a real power band with an upper band limit and a lower band limit, each of which is disposed with an offset from the requested real power. The real power band furthermore comprises at least one control threshold value between the upper band limit and the lower band limit. The method includes controlling at least one regenerative energy generator depending on the at least one control threshold value, in particular in order to provide the requested real power as transmission power at the transmission feed-in point.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: April 9, 2024
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 11898538
    Abstract: Provided is a method for damping low frequency oscillations, in particular subsynchronous resonances, in an electrical supply grid by way of at least one decentralized production unit connected to the electrical supply grid, in particular a wind turbine or a wind farm, comprising the steps: feeding electrical power by way of the at least one production unit and supplementing the feeding by way of a supplementary component for damping the low frequency oscillations, wherein the supplementary component is determined depending on a simplified model of a synchronous machine.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: February 13, 2024
    Assignee: Wobben Properties GmbH
    Inventors: Johannes Brombach, Aramis Schwanka Trevisan
  • Patent number: 11898540
    Abstract: Provided is a method for feeding electrical power into an electrical supply network using a converter-controlled infeed apparatus. The apparatus feeds into a local network section of the electrical supply network at a network connection point. The network has further infeed apparatuses and consumers for consuming electrical power. The local section has a ratio of power able to be fed in using converters to a total power able to be fed in by all infeed apparatuses of at least 50%. A controller controls the infeed of the electrical power depending on a network state of the network. The controller has control behavior that depends on a network characteristic of the local section. The network characteristic is dependent on at least one property of the local section and at least one property of a further network section of the network or a determination that no further network section is present.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: February 13, 2024
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 11885314
    Abstract: The present disclosure relates to a method for operating a converter on a three-phase electrical power supply grid, comprising the following steps: operating the converter in a first operating mode by means of a control unit for generating an output current, wherein the converter in the first operating mode operates in such a way as to apply a voltage to the electrical power supply grid; detecting a grid fault on the electrical power supply grid by means of a detection means during the first operating mode; limiting the output current of the converter by means of current limitation when a grid fault on the electrical power supply grid has been detected during the first operating mode, in particular in such a way that the output current of the converter falls below a predetermined maximum current or substantially corresponds thereto.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: January 30, 2024
    Assignee: Wobben Properties GmbH
    Inventors: Johannes Brombach, Ingo MacKensen, Menko Bakker
  • Patent number: 11754042
    Abstract: A control system of a wind power installation and/or a wind farm is provided. The control system has a plurality of operating modes and has an interface. The interface is configured for providing maximum adjustability of the wind power installation and/or the wind farm in critical power grid situations. The interface is configured to receive a signal of a power grid operator, as a result of which all of the plurality of operating modes are released and made available to the power grid operator.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: September 12, 2023
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 11705733
    Abstract: A method for controlling an exchange of power between a charging infrastructure and an electricity supply grid is provided. A number of power units are formed as electric vehicle. Each power unit has a variable state of charge. From the individual states of charge of the power units, an overall state of charge can be determined. For the overall state of charge, a flexibility range in dependence on time can be predefined for a control time period. The flexibility range is spanned by a progression over time of an upper limit of the overall state of charge and a progression over time of a lower limit of the overall state of charge for the control time period. The flexibility range has range points which can be defined by a value of the overall state of charge and a point in time in the control time period.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: July 18, 2023
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 11705737
    Abstract: A method for feeding electrical power into an electrical supply network using an inverter-controlled infeed unit is provided. The infeed unit has an inverter arrangement with a plurality of inverters to generate an output power and feed same into the network. Each inverter has an associated isolating switch to galvanically isolate the respective inverter from the network. Each inverter has a circuit composed of switches to generate an output current using pulsed actuation. Each inverter generates a variable partial power, and the output power is a sum of all partial powers. Depending on the output power, one or more of the inverters are operated as active inverters that respectively generates a partial power. The other inverters are operated as passive inverters that do not generate a partial power. One or more of the passive inverters are operated as blocked inverters and remain galvanically connected to the network.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: July 18, 2023
    Assignee: Wobben Properties GmbH
    Inventors: Johannes Brombach, Tobias Fredewess
  • Patent number: 11697354
    Abstract: A charging station for charging electric vehicles and the charging station comprises a network connection point for exchanging electrical power with an electrical supply network, at least one charging terminal, in each case for charging an electric vehicle, and a control device for controlling the charging station, wherein the control device is set up to determine an equivalent storage capacity and to transmit it to a receiver outside the charging station, in particular to an operator of the electrical supply network, a network controller and/or a direct marketer, wherein the equivalent storage capacity describes a value which corresponds to a storage capacity of an equivalent electrical storage device which can absorb or emit as much energy as the charging station can absorb or emit by changing its absorbed or emitted power for a predetermined support period.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: July 11, 2023
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 11695277
    Abstract: A method for feeding electrical power into an electrical supply network having a network voltage with a network frequency by means of a converter-based generator, in particular by means of a wind power system, is provided. The method includes estimating a converter proportion of a network section of the electrical supply network. The converter proportion denotes a ratio of power fed in by means of converters to total power fed in. The method includes feeding the electrical power into the electrical supply network in a normal mode depending on the estimated converter proportion, activating a first support mode depending on the estimated converter proportion in accordance with a first activation condition, and activating a second support mode depending on the estimated converter proportion in accordance with a second activation condition, which is different than the first activation condition.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: July 4, 2023
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 11695278
    Abstract: Provided is a method for feeding electric power into an electricity supply grid via a connection node by way of a converter-controlled infeed unit, in particular by way of a wind power installation or a wind farm. The grid has a grid voltage and a grid frequency and is characterized by a grid nominal voltage and a grid nominal frequency. The grid voltage of the grid is acquired, a delayed differential angle is ascertained on the basis of the acquired grid voltage. The delayed differential angle corresponds to a difference between an acquired phase signal that indicates a temporal profile of a phase angle of the grid voltage and a phase signal that is delayed with respect to the acquired phase signal. A grid impedance effective for the connection node is acquired, and an infeed power is predefined based on the delayed differential angle and based on the impedance.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: July 4, 2023
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 11686287
    Abstract: A method of operating at least one wind turbine including: receiving a first signal which is indicative of a level of a remuneration for electrical energy, which is fed currently and/or in the future into a grid to which the wind turbine is connected, producing a control signal dependent on the first signal, and controlling the wind turbine with the control signal for generating power of the wind turbine, that is dependent on the control signal. A wind turbine and a central control for carrying out such a method and a system comprising a central control and a plurality of wind turbines.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: June 27, 2023
    Assignee: Wobben Properties GmbH
    Inventors: Johannes Brombach, Swantje Amelsberg, Christoph Klein
  • Patent number: 11641115
    Abstract: Provided is a method for feeding electrical power into an electrical supply network having a network voltage with a network frequency by means of a converter-based generator, in particular by means of a wind power system, comprising the following steps: estimating a converter proportion, representing a ratio of power fed in by means of converters to total power fed in, of a network section of the electrical supply network, feeding electrical power into the electrical supply network in a normal mode, and activating at least one support control for supporting the electrical supply network. The activating is effected depending on the converter proportion, the at least one support control is adjustable in each case by way of a degree of activation, and the degree of activation of the at least one support control is dependent in each case on the estimated converter proportion.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: May 2, 2023
    Assignee: Wobben Properties GmbH
    Inventor: Johannes Brombach
  • Patent number: 11619207
    Abstract: A method for controlling a wind power installation or a wind farm is provided. The method includes establishing that there is a grid fault within an electrical power supply grid operated by a grid operator and to which the wind power installation or the wind farm is electrically connected via a point of common coupling; switching electrical switches of the wind power installation or the wind farm using a control unit of the wind power installation or the wind farm which is operated by a low-voltage power supply, so that the wind power installation or the wind farm is voltage-free; testing an electrical store for ensuring the low-voltage power supply once the grid fault has been established; and switching further electrical switches of the wind power installation or the wind farm to a predefined switching state in which start-up of the wind power installation or the wind farm is possible.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: April 4, 2023
    Assignee: Wobben Properties GmbH
    Inventors: Johannes Brombach, Tammo Fleßner
  • Publication number: 20230079158
    Abstract: The invention relates to a controller for a wind turbine with an operating software for operating the wind turbine, wherein the operating software is set up to regulate or control at least an electrical output of a wind turbine generator, a speed of a wind turbine rotor, an azimuth angle of a wind turbine nacelle, and a pitch angle of at least one rotor blade of the wind turbine rotor, wherein the operating software comprises a core module and at least one customer application. The customer application is set up to determine a parameter, in particular a control variable, in particular a target value, depending on at least one function of the customer application, and provide it for the core module.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 16, 2023
    Inventors: Johannes Brombach, Swantje Amelsberg, Helge Giertz, Alexander Poolmann