Patents Assigned to General Electric Technology GmbH
  • Patent number: 10203112
    Abstract: A coal fired oxy boiler power plant is disclosed in which a steam coil oxygen preheater located on an oxygen line Air Separation Unit is thermally integrated with the condensate system. Thermal energy for the steam coil oxygen preheater is provided via an extraction line connected to a steam extraction port of an intermediate pressure steam turbine. A drain line of the steam coil oxygen preheater fluidly connects the steam coil oxygen preheater to a point of the Rankine steam cycle fluidly within the condensate system.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: February 12, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Thierry Pourchot, Francois Granier, Frederic Geiger
  • Patent number: 10198013
    Abstract: Embodiments of the disclosure pertain to a voltage regulator system having a voltage regulation controller and a transformer assembly. The transformer assembly includes a coil winding, a multi-contact tap arrangement connected to the coil winding, and a multifurcated tap changer system that includes a first tap changer having a contactor element which makes contact with a first contact of the multi-contact tap arrangement when the controller provides a positioning stimulus based on sensing a voltage deviation from a nominal output voltage of the voltage regulator system. The multifurcated tap changer system further includes a second tap changer that is mechanically ganged to the first tap changer and includes another contactor element arranged to automatically make contact with a second contact of the multi-contact tap arrangement when the contactor element of the first tap changer makes contact with the first contact of the multi-contact tap arrangement.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: February 5, 2019
    Assignee: General Electric Technology GMBH
    Inventor: Thomas Ambrose Dauzat
  • Patent number: 10196939
    Abstract: The once-through boiler includes a water supply and at least an economizer, an evaporator superheater. No valves are provided between the economizer, the evaporator and the superheater. The high-pressure turbine includes a control valve. The method for low load operation of a power plant with a once-through boiler and a high pressure turbine includes providing a parameter indicative of the stable operation of the once-through boiler in once-through operation, and on the basis of this parameter adjusting the control valve in order to regulate the pressure within the economizer and evaporator and/or adjusting the temperature of the water supplied to the economizer.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: February 5, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Volker Schüle, Stephan Hellweg, Reinhard Leithner, Niels Brinkmeier
  • Patent number: 10198458
    Abstract: Aspects of a multi-level electrical distribution control system associated with an electrical distribution grid are disclosed. Data access and processing across the multi-level control system and the electrical distribution grid can provide improved utilization of energy within the electrical distribution grid. Further, dynamic reconfiguration of the electric distribution grid can be based distributed processing and access to information relating to the electrical distribution control system or electrical distribution grid. An encapsulated DNNC data element is disclosed as an efficient and secure means of accessing data across the multi-level electrical distribution control system or the associated electrical distribution grid.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: February 5, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Ethan Clair Boardman, Subrahmanyam Saraswati Venkata
  • Patent number: 10199954
    Abstract: A voltage source converter includes DC terminals, a plurality of single-phase limbs, and a controller. Each single-phase limb includes a phase element and switching elements. Each limb is connected between the DC terminals and is controllable to generate an AC voltage at the AC side of the corresponding phase element so as to draw a respective phase current from a multi-phase AC electrical network. The controller is configured to selectively generate a modified AC voltage demand for at least one limb in response to an imbalance in the phase currents and/or a change in electrical rating of at least one limb. The controller is configured to selectively control, in accordance with the or the respective modified AC voltage demand, the or each corresponding limb independently of the or each other limb to modify the voltage at the AC side of its phase element and thereby modify the corresponding phase current.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: February 5, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: David Reginald Trainer, Omar Fadhel Jasim, Dumisani Simfukwe
  • Patent number: 10193407
    Abstract: A rotor has a rotor core with protruding fingers defining slots for conductors and support blocks at the axial ends of the fingers fixed by screws. The fingers have holes for housing the screws. The method for repairing the rotor includes removing the screws and support blocks, drilling the holes to increase the diameter thereof, providing plugs into the holes.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: January 29, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Thomas Opderbecke, Kornelia Weidemann, Simon Baldasera, Sanjiv Kumar Mishra, Simon Malcolm Potter, Markus Noe
  • Patent number: 10186943
    Abstract: An electrical assembly comprises a chain-link converter which includes a plurality of chain-link sub-modules. Each of the chain-link sub-modules is operable to provide a voltage source. Moreover, each of the chain-link sub-modules is provided with a visual indicator. The electrical assembly includes a controller which is configured to selectively operate each of the visual indicators to present a respective mapping visual signal. The electrical assembly additionally includes an image receiving device which is configured to receive the respective mapping visual signal. The electrical assembly also includes a processor which is operatively coupled to the image receiving device. The processor is configured to receive and process the respective mapping visual signal received by the image receiving device so as to create a map of a spatial arrangement of the chain-link sub-modules.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: January 22, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Phil Jones
  • Patent number: 10184915
    Abstract: An inspection apparatus, including an extendable structure, an inspection probe, a drive, a sensor, and a processor. The extendable structure includes an end fixed to the inspection probe and insertable into a gap defined between a first surface and a second surface. The extendable structure is configured to maintain physical contact with the first surface as the end transitions across the first surface. The drive is configured to position the inspection probe. The current sensor is coupled to the drive and configured to measure a drive load over a period of time the inspection probe transitions across the first surface. The processor is coupled to the sensor and is configured to receive a signal associated with the drive load corresponding to movement of the inspection probe, and determine an operating condition of the extendable structure based on the drive load signal.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: January 22, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Reinhard Fischer, Andrew Lumley, Dominik Loosli
  • Publication number: 20190017639
    Abstract: An expansion joint for a solids return system includes a female joint portion, a male joint portion received by the female joint portion, the male joint portion and the female joint portion forming a lateral breach therebetween, a double rope seal positioned within the lateral breach, the double rope seal being configured to accommodate relative lateral movement between the female joint portion and the male joint portion, and an insulating pillow received about the male joint portion and abutting a distal end surface of the female joint portion, the insulating pillow being configured to accommodate relative axial movement between the female joint portion and the male joint portion.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 17, 2019
    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: CRAIG A. THOMAS, JOSEPH P. ULLRICH, ROBERT E. WOODS
  • Patent number: 10180085
    Abstract: A combined cycle power plant is described, comprising a steam turbine, a first heat recovery steam generator and a second heat recovery steam generator. The first heat recovery steam generator is attached to the steam turbine by a first steam pipe system and the second heat recovery steam generator is attached to the steam turbine by a second steam pipe system, to allow steam to pass from the first and second heat recovery steam generators to the steam turbine. The steam turbine is arranged in between the first heat recovery steam generator and the second heat recovery steam generator.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: January 15, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Siegfried Trippold, Andre Koenig, Atish Dipankar Roy Choudhury, Patrice Richard Cantin, Reza Alikhani, Prashant Agrawal
  • Patent number: 10176946
    Abstract: The invention relates to a drive device for an electrical switching device, in particular for a high-voltage switch, having a housing which can be filled with insulating gas, having an energy storage device which is arranged in the housing and has a spring and a stop against which the spring can be tensioned. According to the invention, an adjustment device which can be actuated from the exterior of the housing is provided, by means of which adjustment device a position of the stop in the housing can be adjusted along an axis.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: January 8, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Gerrit Boehm, Achim Stelter
  • Patent number: 10173162
    Abstract: A fabric filter including a hollow elongated upper section having a fabric sleeve with a cross sectional shape which is circular, oval or rectangular; a hollow elongated lower section including a fabric sleeve having pleats extending along a length of the lower section and a bottom of the lower section is covered, wherein an internal cross sectional area of the lower section is smaller than an internal cross sectional area of the upper section, wherein while joined the upper section and the lower section define a chamber within the fabric sleeves extending the lengths of the upper section and the lower section and the chamber is open at an upper end of the upper section.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: January 8, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Per-Erik Albert Appelo, Peter Folke Ivar Wieslander
  • Patent number: 10177643
    Abstract: A semiconductor switching circuit, for use in a HVDC power converter, comprising: a main semiconductor switching element, including first and second connection terminals between which current flows from the first connection terminal to the second connection terminal and an auxiliary semiconductor switching element electrically connected between the first and second connection terminals thereof, and a control unit, operatively connected to auxiliary semiconductor switching element and programmed to control the switching element to create an alternative current path between the first and second connection terminals by at least two of: a fully-on mode in which the switching element is operated at its maximum rated base current or gate voltage; a pulsed switched mode in which the switching element is turned on and off; and an active mode in which the switching element is operated with a continuously variable base current or gate voltage.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: January 8, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Colin Charnock Davidson
  • Patent number: 10170256
    Abstract: The invention relates to a medium-, high-, or very high-voltage circuit breaker, comprising at least one arc-control chamber and an outer casing in which the arc-control chamber is arranged. The circuit breaker includes a discharge cap (40) forming a portion of the outer wall external of the arc-control chamber (12), the discharge cap being situated inside the outer casing and internally defining a gas-flow chamber (31). In the invention, the discharge cap (40) includes at least one portion (40?) that is movable under the effect of the gas pressure in the gas-flow chamber (31), in such a manner that its volume is extensible.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: January 1, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Emilien Pierres, Nicolas Toquet, Roger Ledru
  • Patent number: 10167743
    Abstract: In a method for controlling a waste heat recovery steam generator of the once-through steam generator type in a combined cycle power plant, the flow volume of the feedwater into the steam generator is controlled based on a measured steam temperature at the outlet of a superheater and on a set-point value for the steam temperature for a steam turbine. A degree of superheating at the outlet of a high-pressure evaporator, a degree of subcooling at the inlet into the high-pressure evaporator, and the measured current flow volume of the feedwater are integrated in the control system in a plurality of control steps. For an optimum operation during rapid load changes, the method especially comprises additional controlling of the degree of subcooling of the flow medium at the inlet into the high-pressure evaporator.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: January 1, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Hamid Olia
  • Publication number: 20180375404
    Abstract: The present disclosure relates to a slip ring arrangement for an electric machine to transfer current from a current source to a rotor of an electric machine. It is an object of the invention to provide a slip ring arrangement for an electric machine which guarantees appropriate cooling properties and mechanical stability. Disclosed is a slip ring arrangement for an electric machine with a slip ring composed of a cylindrical body, an end section and a shrink seat, whereas in the cylindrical body radial openings are formed, the shrink seat is shrinkable on a shaft, the shaft has a reduced diameter under the cylindrical body in order to form a sloped annular air gap beneath the cylindrical body to direct cooling medium through the radial openings.
    Type: Application
    Filed: December 13, 2016
    Publication date: December 27, 2018
    Applicant: General Electric Technology GmbH
    Inventors: Zhiyun CHEN, Daniel HEDIGER
  • Patent number: 10161268
    Abstract: A damper assembly for minimizing heat loss through an exhaust stack includes a housing mountable within the stack and an umbrella received within the housing. The umbrella is selectively movable between a first position in which the umbrella is received within the housing, and second position in which the umbrella is extended from the housing such that a peripheral edge of the umbrella is in close association with an interior sidewall of the exhaust stack to minimize a flow of fluid past the umbrella and out of the stack.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: December 25, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Glauco Epis, Luca Angelo Cinquegrani, Luca Rigoni
  • Patent number: 10161630
    Abstract: A sampling assembly includes a vessel that is configured to receive a flue gas stream at a predetermined temperature and a regent product. The sampling assembly also includes an agitator positioned within the vessel. The agitator is configured to rotate within the vessel to cause a chemical reaction to induce formation of particulate matter. The sampling assembly further includes a sensor coupled to the agitator. The sensor is configured to measure a variable operating parameter of the agitator, wherein a change in value of the variable operating parameter is indicative that the particulate matter agglomerates at the predetermined flue gas stream temperature.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: December 25, 2018
    Assignee: General Electric Technology GmbH
    Inventor: Daniel PerNiklas Persson
  • Patent number: 10164431
    Abstract: Outages associated with an electrical energy distribution system are managed, identified and/or predicted. In an implementation, a system provides for generating network topology data, indicative of a topology for an electrical energy distribution system associated with a power outage, based on connectivity data for devices in the electrical energy distribution system. The system also provides for determining, based on the network topology data, a first set of devices from the devices that are de-energized and determining a second set of devices from the devices that are not included in the first set of devices. Furthermore, the system provides for updating, based on report data associated with the second set of devices, the network topology data. Then, the system provides for identifying, based on the updated network topology data, a device from the second set of devices that satisfies a criterion associated with the power outage.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: December 25, 2018
    Assignee: General Electric Technology GmbH
    Inventors: Alan Karlak, Villy Vassdal, Bret Phillips, Brajesh Kumar
  • Publication number: 20180361399
    Abstract: A system for controlling an electrostatic precipitator includes a computer control system with a computer and a controller in operative communication with an electrostatic precipitator. The computer control system is operative to control performance of the electrostatic precipitator by controlling one or more of: a) a power supply that controls voltage between an electrically grounded vertical plate and a metallic wire electrode in the electrostatic precipitator; b) a first feeder valve and a second feeder valve in a hopper; and c) a power supply to an electrical coil in operative communication with a rapper.
    Type: Application
    Filed: December 10, 2015
    Publication date: December 20, 2018
    Applicant: General Electric Technology GmbH
    Inventors: Carl Marcus WILLIAMSSON, Niraj Kumar SINGH, Nanda Kishore DASH, Robert Fredrick Murphy