Patents by Inventor Simon Herbert Schramm
Simon Herbert Schramm 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: 20140078782Abstract: A power converter control system includes primary bridge controller that is configured to actuate a first plurality of gate drive units that switch a first plurality of power elements in a primary bridge of a power converter.Type: ApplicationFiled: September 14, 2012Publication date: March 20, 2014Inventors: Sebastian Pedro ROSADO, Henry Todd YOUNG, Simon Herbert SCHRAMM, Alvaro Jorge Mari CURBELO, Jason Daniel KUTTENKULER, Paolo SOLDI
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Publication number: 20140062196Abstract: A power transmission system is provided. The power transmission system includes at least one power substation for receiving power from a power source, and a Direct Current (DC) cable for transferring the power from the power source to the power substation. The DC cable includes a plurality of segments individually or in combination forming a path to route the power to the power substation. The system further includes at least one segment switch unit electrically coupled to each segment. At least one of the segment switch units includes a shorting switch element for providing a short circuit path to prevent the power from the power source to be routed to a respective segment in response to a shorting command, and a disconnect switch element for disconnecting the respective segment in response to a disconnect command.Type: ApplicationFiled: August 31, 2012Publication date: March 6, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Piniwan Thiwanka Bandara Wijekoon, Christof Martin Sihler, Simon Herbert Schramm
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Publication number: 20140001756Abstract: An electromagnetic braking system of a power generation system includes an electrically conductive disc coupled to a rotatable shaft operatively coupled between a prime mover and a generator; a controller for receiving a status signal from the power generation system and for generating a control signal based on the status signal; and an inducting unit for applying an electromagnetic braking force on the electrically conductive disc when commanded by the control signal to regulate a rotational speed of the rotatable shaft.Type: ApplicationFiled: June 28, 2012Publication date: January 2, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Ara Panosyan, Simon Herbert Schramm, Jan Erich Hemmelmann, Christof Martin Sihler, Francesco Papini, Xiaoting Dong, Johannes Huber
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Publication number: 20130308344Abstract: A power converter apparatus includes a primary bridge having a plurality of diagonally opposed primary power elements, and a secondary bridge having a plurality of diagonally opposed secondary power elements. The primary and secondary bridges are electrically coupled by a transformer. At least one control unit is configured to phase-shift switch the primary and secondary power elements, such that one or more of the primary and secondary power elements are switched off under near-zero current conditions to reduce voltage and current stresses and commutation losses within the power converter.Type: ApplicationFiled: May 18, 2012Publication date: November 21, 2013Inventors: Sebastian Pedro Rosado, Henry Todd Young, Simon Herbert Schramm, Alvaro Jorge Mari Curbelo, Jason Daniel Kuttenkuler, Zhihui Yuan
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Publication number: 20130200839Abstract: A torsional mode damping controller system connected to a converter that drives a drive train including an electrical machine and a non-electrical machine. The controller system includes an input interface configured to receive measured data related to variables of the converter or the drive train and a controller connected to the input interface. The controller is configured to calculate at least one dynamic torque component along a section of a shaft of the drive train based on the measured data from the input interface, generate control data for a rectifier of the converter for damping a torsional oscillation in the shaft of the drive train based on the at least one dynamic torque component, and send the control data to the rectifier for modulating an active power exchanged between the converter and the electrical machine.Type: ApplicationFiled: March 30, 2011Publication date: August 8, 2013Applicant: NUOVO PIGNONE S.P.A.Inventors: Simon Herbert Schramm, Christof Martin Sihler, Alfredo Sebastian Achilles, Paola Rotondo
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Publication number: 20130162186Abstract: A torsional mode damping controller system is connected to a converter that drives an electrical machine mechanically connected to a train. The controller system includes an input interface configured to receive measured data related to variables of the converter or the electrical machine, and a controller connected to the input interface. The controller calculates at least one dynamic torque component along a section of a shaft of the train based on the data from the input interface, generates control data for the converter for damping a torsional oscillation in the mechanical drive train based on the at least one dynamic torque component, and sends the control data to the converter for modulating an active power exchanged between the converter and the electrical machine.Type: ApplicationFiled: March 30, 2011Publication date: June 27, 2013Applicant: NUOVO PIGNONE S.P.A.Inventors: Simon Herbert Schramm, Johannes Huber, Christof Martin Sihler, Sergio De Franciscis
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Patent number: 8471534Abstract: A power generation system that includes a prime mover configured to generate mechanical energy. The power generation system also includes a power generator configured for generating electrical power from the mechanical energy received from the prime mover. The power generation system further includes a fault ride-through switch electrically coupled in series between the power generator and a power grid. The fault ride-through switch includes a first branch configured to carry the electrical power during normal operating conditions and includes an LC resonance circuit. The fault ride-through switch also includes a multiphase transformer configured for providing voltage phases of different polarities to the LC resonance circuit.Type: GrantFiled: August 26, 2010Date of Patent: June 25, 2013Assignee: General Electric CompanyInventors: Ara Panosyan, Goran Drobnjak, Simon Herbert Schramm
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Publication number: 20130155734Abstract: A method and system for detecting an islanding condition in a grid is provided. The method comprises detecting a potential islanding condition in a grid; and, in response to the detected potential islanding condition, ramping up an amount of reactive power, active power, or a combination of active and reactive power that is generated from a power conversion system until the earlier of the power conversion system shutting down or a threshold condition being reached.Type: ApplicationFiled: December 14, 2011Publication date: June 20, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Said Farouk Said El-Barbari, Simon Herbert Schramm, Ara Panosyan
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Publication number: 20130106330Abstract: A torsional mode damping controller system is connected to a converter that drives a drive train including an electrical machine and a non-electrical machine. The controller system includes an input interface configured to receive measured data related to variables of the converter or the drive train and a controller connected to the input interface. The controller is configured to calculate at least one dynamic torque component along a section of a shaft of the drive train based on the measured data from the input interface, generate control data for a rectifier and an inverter of the converter for damping a torsional oscillation in the shaft of the drive train based on the at least one dynamic torque component, and send the control data to the rectifier and to the inverter for modulating an active power exchanged between the converter and the electrical machine.Type: ApplicationFiled: March 30, 2011Publication date: May 2, 2013Applicant: NUOVO PIGNONE S.p.A.Inventors: Simon Herbert Schramm, Christof Martin Sihler, Alfredo Sebastian Achilles, Paola Rotondo
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Publication number: 20130026831Abstract: A power distribution system includes a plurality of load side power converters configured in a modular stacked DC (MSDC) converter architecture. Each load side converter includes a respective energy storage device such that together the plurality of energy storage devices provides a distributed subsea energy storage system configured to maintain a common subsea busbar voltage substantially constant during intermittent load voltage excursions.Type: ApplicationFiled: July 31, 2011Publication date: January 31, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Christof Martin Sihler, Simon Herbert Schramm, Stefan Schroeder
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Publication number: 20120268099Abstract: A high voltage direct current (HVDC) power transmission system includes a cable fault ride-through system. The cable fault ride-through system is configured to ensure the HVDC power transmission system remains operational via an earth path between the power source end and the load end during a transmission cable fault, even in the absence of a neutral bus and/or dc circuit breakers.Type: ApplicationFiled: April 25, 2011Publication date: October 25, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Christof Martin Sihler, Simon Herbert Schramm, Emad Ezzat Ahmed, Gorm Sande, Rainer Hoffman
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Publication number: 20120049805Abstract: A power generation system that includes a prime mover configured to generate mechanical energy. The power generation system also includes a power generator configured for generating electrical power from the mechanical energy received from the prime mover. The power generation system further includes a fault ride-through switch electrically coupled in series between the power generator and a power grid. The fault ride-through switch includes a first branch configured to carry the electrical power during normal operating conditions and includes an LC resonance circuit. The fault ride-through switch also includes a multiphase transformer configured for providing voltage phases of different polarities to the LC resonance circuit.Type: ApplicationFiled: August 26, 2010Publication date: March 1, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Ara Panosyan, Goran Drobnjak, Simon Herbert Schramm
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Publication number: 20120025528Abstract: A magnetostriction-based sensor system for sensing force on a wind turbine rotor shaft having multiple localized magnetized domains sensitive to magnetostriction. The sensor system includes at least two sets of first and second magnetometers. The signals from the at least two sets of first and second magnetometers can be utilized to determine torsional and linear forces being exerted on the wind turbine rotor shaft.Type: ApplicationFiled: May 20, 2011Publication date: February 2, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Pekka Tapani Sipilä, Kunal Ravindra Goray, Marko Klaus Baller, Simon Herbert Schramm, Christof Martin Sihler
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Publication number: 20110316342Abstract: A power generation system includes integrated photovoltaic (PV) panels. Each of the integrated PV panel includes photovoltaic cells, a junction coupler coupling the photovoltaic cells in series, in parallel, or in combinations thereof, output terminals, and a DC to AC converter coupled between the junction coupler and the output terminals. The DC to AC converter includes switching devices and the integrated PV panels are coupled in series at the respective output terminals. A controller is provided in the power generation system for generation switching command signals for the switching devices of the integrated PV panels to synthesize an output voltage of the power generation system.Type: ApplicationFiled: June 29, 2010Publication date: December 29, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Said Farouk Said El-Barbari, Oliver Gerhard Mayer, Robert Roesner, Christof Martin Sihler, Simon Herbert Schramm
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Patent number: 8080891Abstract: A wind turbine hybrid braking system is presented. The system includes a generator coupled to a main shaft of the wind turbine for generating and transmitting power. A mechanical brake is coupled to the main shaft for applying reaction torque upon braking of the wind turbine. The system further includes an electrical braking circuit coupled to the generator for acting in conjunction with the mechanical brake and dissipating active power via controlled switching.Type: GrantFiled: September 25, 2009Date of Patent: December 20, 2011Assignee: General Electric CompanyInventors: Simon Herbert Schramm, Christof Martin Sihler
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Patent number: 8004252Abstract: A power system stabilizer includes: a sensor configured for sensing a signal representative of electromechanical oscillations of the power system; a controller configured for using the sensed signal for generating control signals for damping the electromechanical oscillations; and a damper including a damping converter and a resistor coupled to the damping converter, the damping converter being coupled to the power system through a power bus, the damping converter configured for using the control signals for damping the electro-mechanical oscillations.Type: GrantFiled: June 29, 2007Date of Patent: August 23, 2011Assignee: General Electric CompanyInventors: Christof Martin Sihler, Alfredo Sebastian Achilles, Simon Herbert Schramm
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Publication number: 20110101927Abstract: A power generation system includes a generator mechanically coupled to a turbine to generate electrical power. The system includes a fault ride through system having a variable resistor and a variable inductor. The variable resistor is connected in parallel across output terminals of the generator to absorb power from the generator during a grid fault condition, and the variable inductor is connected between an output terminal of the generator and a power grid.Type: ApplicationFiled: November 4, 2009Publication date: May 5, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Goran Drobnjak, Simon Herbert Schramm, Christof Martin Sihler
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Publication number: 20100133823Abstract: A wind turbine hybrid braking system is presented. The system includes a generator coupled to a main shaft of the wind turbine for generating and transmitting power. A mechanical brake is coupled to the main shaft for applying reaction torque upon braking of the wind turbine. The system further includes an electrical braking circuit coupled to the generator for acting in conjunction with the mechanical brake and dissipating active power via controlled switching.Type: ApplicationFiled: September 25, 2009Publication date: June 3, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Simon Herbert Schramm, Christof Martin Sihler
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Publication number: 20090001940Abstract: A power system stabilizer includes: a sensor configured for sensing a signal representative of electromechanical oscillations of the power system; a controller configured for using the sensed signal for generating control signals for damping the electromechanical oscillations; and a damper including a damping converter and a resistor coupled to the damping converter, the damping converter being coupled to the power system through a power bus, the damping converter configured for using the control signals for damping the electromechanical oscillations.Type: ApplicationFiled: June 29, 2007Publication date: January 1, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Christof Martin Sihler, Alfredo Sebastian Achilles, Simon Herbert Schramm