Patents by Inventor Andrzej Geniusz
Andrzej Geniusz 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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Publication number: 20190229735Abstract: A method for operating a wind turbine configured to supply electrical power to an electrical power supply network via a converter comprises measuring a phase angle and measuring a voltage of the electrical power supply network. A value of at least one parameter for a phase locked loop is determined depending on the measured voltage. The phase locked loop is used to determine a corrected phase angle depending on the measured phase angle and the voltage of the electrical power supply network. The corrected phase angle is input into the converter.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicants: Nordex Energy GmbH, Woodward Kempen GmbHInventors: Nils-Hendric Schall, Andrzej Geniusz, Nils Hoffmann
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Patent number: 8487461Abstract: The invention relates to a method for operating a wind energy plant having a double-fed asynchronous machine, at least one inverter and at least one control device, wherein electrical energy is at least partly supplied into a grid via the inverter, the inverter comprises per phase at least one power semi-conductor module with at least two transistor circuits and at least two free-wheeling diodes and the inverter by using the control device is actuated at least at times via a pulse width modulation (PWM).Type: GrantFiled: January 6, 2009Date of Patent: July 16, 2013Assignee: Woodward KempenInventors: Stephan Engelhardt, Andrzej Geniusz
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Patent number: 8415818Abstract: In a method for the compensation of rotor torque oscillations upon the occurrence of mains asymmetries in relation to a double-fed asynchronous machine (1) it is provided that at least one respective currently prevailing machine parameter is measured and/or derived, the at least one machine parameter is respectively decomposed by calculation into a positive and a negative sequence system component and optionally a DC component, and for the positive sequence system component, the negative sequence system component and optionally for the DC component of the at least one machine parameter, there are respective separate control members for controlling an adjusting value, to which the respective components of the machine parameters are fed as input components and the output values of which are additively superposed. In that case the control members are so adapted for controlling the adjusting value in such a way that the torque oscillations are counteracted.Type: GrantFiled: August 9, 2008Date of Patent: April 9, 2013Assignee: Woodward Kempen GmbHInventors: Stephan Engelhardt, Holger Wrede, Andrzej Geniusz
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Patent number: 8400004Abstract: A method for operating a wind turbine that includes a generator device for outputting electric energy to a network, the generator device having a stator, and a controller device for controlling the generator device. To ensure sufficient protection of the wind turbine even during network fluctuations, a network voltage is determined using a network model at least as a function of a stator voltage measured with a first measuring apparatus and a network power measured with a second measuring apparatus, and the determined network voltage and a predeterminable maximum phase angle present between the stator voltage and network voltage are used to determine the maximum effective power of the wind turbine that can be output, and the output effective power is regulated as a function of the determined maximum effective power that can be output and a target effective power predetermined by the control device.Type: GrantFiled: January 28, 2009Date of Patent: March 19, 2013Assignee: Woodward Kempen GmbHInventors: Stephan Engelhardt, Andrzej Geniusz
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Patent number: 8242753Abstract: In a method and an apparatus for controlling the output or drawn active and reactive power of a double-fed asynchronous machine (5), the maintenance of a maximum permissible current (16) of the machine—without the use of a subordinate current controller—is ensured by virtue of the fact that, during the operation of the double-fed asynchronous machine, a maximum permissible desired value for the active power (10a) to be output or to be drawn and a maximum permissible desired value for the reactive power (10b) to be output or to be drawn are calculated with the aid of a model of the asynchronous machine from the maximum permissible current (16), preferably corrected at least using the actual value of the current to be limited of the machine, in such a way that the maximum permissible current (16) is not exceeded. The predetermined active and reactive power desired values are then limited to the calculated maximum permissible values.Type: GrantFiled: May 30, 2007Date of Patent: August 14, 2012Assignee: Woodward SEG GmbH & Co KGInventors: Stephan Engelhardt, Andrzej Geniusz
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Publication number: 20110153092Abstract: In a method for the compensation of rotor torque oscillations upon the occurrence of mains asymmetries in relation to a double-fed asynchronous machine (1) it is provided that at least one respective currently prevailing machine parameter is measured and/or derived, the at least one machine parameter is respectively decomposed by calculation into a positive and a negative sequence system component and optionally a DC component, and for the positive sequence system component, the negative sequence system component and optionally for the DC component of the at least one machine parameter, there are respective separate control members for controlling an adjusting value, to which the respective components of the machine parameters are fed as input components and the output values of which are additively superposed. In that case the control members are so adapted for controlling the adjusting value in such a way that the torque oscillations are counteracted.Type: ApplicationFiled: August 9, 2008Publication date: June 23, 2011Applicant: Woodward Seg GMBH & Co.KgInventors: Stephan Engelhardt, Holger Wrede, Andrzej Geniusz
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Publication number: 20110006528Abstract: A method for operating a wind turbine that includes a generator device for outputting electric energy to a network, the generator device having a stator, and a controller device for controlling the generator device. To ensure sufficient protection of the wind turbine even during network fluctuations, a network voltage is determined using a network model at least as a function of a stator voltage measured with a first measuring apparatus and a network power measured with a second measuring apparatus, and the determined network voltage and a predeterminable maximum phase angle present between the stator voltage and network voltage are used to determine the maximum effective power of the wind turbine that can be output, and the output effective power is regulated as a function of the determined maximum effective power that can be output and a target effective power predetermined by the control device.Type: ApplicationFiled: January 28, 2009Publication date: January 13, 2011Applicant: WOODWARD SEG GMBH & CO. KGInventors: Stephan Engelhardt, Andrzej Geniusz
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Publication number: 20100277134Abstract: The invention relates to a method for operating a wind energy plant having a double-fed asynchronous machine, at least one inverter and at least one control device, wherein electrical energy is at least partly supplied into a grid via the inverter, the inverter comprises per phase at least one power semi-conductor module with at least two transistor circuits and at least two free-wheeling diodes and the inverter by using the control device is actuated at least at times via a pulse width modulation (PWM).Type: ApplicationFiled: January 6, 2009Publication date: November 4, 2010Applicant: WOODWARD SEG GMBH & CO. KGInventors: Stephan Engelhardt, Andrzej Geniusz
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Publication number: 20090267572Abstract: In a method and an apparatus for controlling the output or drawn active and reactive power of a double-fed asynchronous machine (5), the maintenance of a maximum permissible current (16) of the machine—without the use of a subordinate current controller—is ensured by virtue of the fact that, during the operation of the double-fed asynchronous machine, a maximum permissible desired value for the active power (10a) to be output or to be drawn and a maximum permissible desired value for the reactive power (10b) to be output or to be drawn are calculated with the aid of a model of the asynchronous machine from the maximum permissible current (16), preferably corrected at least using the actual value of the current to be limited of the machine, in such a way that the maximum permissible current (16) is not exceeded; The predetermined active and reactive power desired values are then limited to the calculated maximum permissible values.Type: ApplicationFiled: May 30, 2007Publication date: October 29, 2009Applicant: WOODWARD SEG GMBH & CO. KGInventors: Stephan Engelhardt, Andrzej Geniusz
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Patent number: 7423406Abstract: Regulation of the active and reactive power of an induction machine in a coordinate system fixed on the winding, wherein a first regulator output variable is generated using a first regulator as a function of a setpoint variable deviation of the active power and a second regulator output variable is generated using a second regulator as a function of a setpoint variable deviation of the reactive power, feedback variables are added to each of the first and second regulator output variables, which are functions of at least one chronologically changing system variable of the induction machine, and a voltage or a current of the induction machine is determined as a manipulated variable without further regulation at least from the first and second regulator output variables added to the feedback variables. The feedback variables may linearize the regulation path and then allow restriction to only two simple regulators, e.g., two PI regulators. The regulation may be used in double-fed asynchronous machines.Type: GrantFiled: July 29, 2005Date of Patent: September 9, 2008Assignee: Woodward Seg GmbH & Co KGInventor: Andrzej Geniusz
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Publication number: 20070052394Abstract: Regulation of the active and reactive power output or received by a induction machine (1) in a coordinate system fixed on the winding, wherein a first regulator output variable is generated using a first regulator (46-1) as a function of a setpoint variable deviation of the active power and a second regulator output variable is generated using a second regulator (46-2) as a function of a setpoint variable deviation of the reactive power, feedback variables are charged on each of the first and second regulator output variables, which are functions of at least one chronologically changing system variable of the induction machine, and a voltage or a current of the induction machine is determined as a manipulated variable without further regulation at least from the first and second regulator output variables charged with the feedback variables. The feedback variables may linearize the regulation path and then allow restriction to only two simple regulators, e.g., two PI regulators.Type: ApplicationFiled: July 29, 2005Publication date: March 8, 2007Applicant: SEG SCHALTAN LAGEN-ELEKTRONIK-GERATE GmbH & CO. KGInventor: Andrzej Geniusz