Patents Assigned to General Electric Technology GmbH
  • Patent number: 10027253
    Abstract: In the field of high voltage direct current power transmission networks, a voltage source converter comprises first and second DC terminals for connection to a DC electrical network, and a plurality of single-phase limbs. Each single-phase limb includes a phase element, and each phase element includes at least one switching element configured to interconnect a DC voltage and an AC voltage. An AC side of each phase element is connectable to a respective phase of a multi-phase AC electrical network, and each single-phase limb is connected between the first and second DC terminals. The voltage source converter further comprises a controller configured to determine independently of one another an amount of active power (Pref) that the voltage source converter should exchange with the AC electrical network and an amount of reactive power (Qref) that the voltage source converter should exchange with the AC electrical network.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: July 17, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Omar Fadhel Jasim
  • Patent number: 10027238
    Abstract: An electrical assembly includes a DC tap including first and second tap terminals that are respectively connectable to first and second DC power transmission media, the DC tap including a tap limb extending between the first and second tap terminals and having two limb portions separated by a third tap terminal connectable to an electrical load, each tap limb portion including a DC blocking capacitor. The assembly further includes a current return configured to electrically interconnect the or each AC terminal to the third tap terminal, a converter unit, and a controller configured to selectively control the converter unit to generate at least one first non-fundamental frequency alternating current component at the or each AC terminal and modify the or each first non-fundamental frequency alternating current component to enable the DC tap to draw power from the DC electrical network for supply to the electrical load.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: July 17, 2018
    Assignee: General Electric Technology GmbH
    Inventor: David Reginald Trainer
  • Patent number: 10027217
    Abstract: In the field of high voltage direct current power transmission networks, a method of controlling a converter that includes at least one converter limb which corresponds to a respective phase of the converter, is described. The method includes obtaining a respective AC current demand phase waveform for each converter limb which the corresponding converter limb is required to track, and a DC current demand which each converter limb is also required to track. The method further determining a limb portion current for each limb portion that the limb portion must contribute to track the corresponding required AC current demand phase waveform and the required DC current demand, and providing a limb portion voltage source for each limb portion to achieve the corresponding limb portion current. The method carrying out mathematical optimization to determine one or more optimal limb portion currents and/or provide optimal limb portion voltage sources.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: July 17, 2018
    Assignee: General Electric Technology GmbH
    Inventors: Sajjad Fekriasl, Michael Marc Claude Merlin, Timothy Charles Green, Kevin Dyke, Francisco Jose Moreno Muñoz, Omar Fadhel Jasim, Masoud Bazargan
  • Patent number: 10026571
    Abstract: To improve an interruption process, a switching chamber for a gas-insulated circuit breaker comprises a thermal channel having a bend part delimited by an outer surface of an auxiliary insulating nozzle including a first bend section on a thermal volume side, a third bend section on an arcing region side, and a second bend section connecting the first bend section to the third bend section, and by an inner surface of a main insulating nozzle including a fourth bend section on a thermal volume side, a sixth bend section on an arcing region side, and a fifth bend section connecting the fourth bend section to the sixth bend section, such that in axial section view, the first to sixth bend sections form 30 degrees arcs of circles having respective radii R1, R2, R3, R4, R5 and R6 such that R1>R2>R3 and R4>R5>R6.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: July 17, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Victor F. Hermosillo, Othman Zakaria, Quentin Rognard
  • Patent number: 10027101
    Abstract: This invention relates to a supporting structure for contacts of high-voltage disconnectors, characterized in that it comprises at least one vertical central composite insulator that is stayed by means of at least two inclined insulators, each of which is coupled at a first end to said at least one central composite insulator and at the second opposite end to a base body for said at least one vertical central composite insulator.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: July 17, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Vincenzo Girlando, Marco Nosilati
  • Patent number: 10018353
    Abstract: A sealpot for a combustion power plant includes a downcomer standpipe which receives solids of the combustion power plant, a bed including a first end and a second opposite end, the first end connected to the downcomer standpipe, a discharge standpipe disposed at the second opposite end of the bed, and an orifice plate disposed between the bed and the discharge standpipe separating the discharge standpipe from the bed. The orifice plate includes apertures disposed at a height above the bed which allow transport of fluidized solids and gas through the orifice plate.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: July 10, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: John H. Chiu, Bard C. Teigen
  • Patent number: 10020764
    Abstract: The present disclosure relates to a system to compensate for mechanical forces on a rotating rotor of an electric machine, to a method for compensating mechanical forces on a rotating rotor of an electric machine, and to a use of a corresponding system. Disclosed is a system for compensating torsions at a rotating rotor. The system includes at least one measuring device for measuring specific properties of the rotor, an analyzer unit for analyzing the measurement data of the measuring device, a compensation means for compensating the torsions at the rotor, the compensation means comprise a power supply unit generating a signal adapted in amplitude and frequency to the measured properties of the rotor, and to apply the generated signal to the rotor, and the power supply unit is a frequency converter.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 10, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Joerg Oesterheld, Luca Alberti, Giovanni Cataldi
  • Patent number: 10014740
    Abstract: The present disclosure relates to a chamber for housing strands of a stator bar for electric machines. The problem to provide a reliable chamber for a stator bar of an electric machine is solved with a stator bar chamber engaging a stator bar in an electric machine. The chamber includes a number of hollow conductors in a first straight part of the chamber, a number of hollow conductors in a second tapered part, and a number of hollow conductors and adjacent solid conductors in a third straight part. The first part of the chamber is closed with a ring mounted at the edge of the first part and a nipple adapted to the ring.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: July 3, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Janusz Bialik, Laurent Didier Jean Clemence, Duncan Madle, Jean-Noel Simon, Cristian Ana
  • Patent number: 10011441
    Abstract: A system includes a standpipe for receiving a flow of solids therethrough, the standpipe having at least one inlet configured to receive a gas for decreasing a solids-to-gas ratio of the flow, a sealpot having an inlet fluidly coupled to the standpipe and an outlet fluidly coupled to a riser, the sealpot being configured to fluidize the solids received from the standpipe and to transport the solids to the riser, and a drain device fluidly coupled to an outlet in the standpipe, the outlet being located upstream from the inlet of the sealpot. The drain device is configured to remove the excess gas from the flow of solids within the standpipe to increase the solids-to-gas ratio of the flow prior to the solids entering the sealpot.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: July 3, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Jonq-Hai Chiu
  • Patent number: 10012382
    Abstract: A combustion system having a furnace defining a combustion chamber includes a first burner disposed at an upper elevation of the combustion chamber and a second burner and a third burner disposed at a lower elevation of the combustion chamber. A first duct extends vertically to convey therein a fuel flow of gas and pulverized fuel. A second duct branches from the first duct to the first burner to convey a first portion of the fuel flow, which is fuel lean, to define a fuel lean flow, wherein a second portion of the fuel flow passes through the first duct as a fuel rich flow. A third duct includes one end disposed longitudinally within the first duct. An impeller is disposed within the first duct upstream of the branching of the second duct and downstream of the one end of the third duct disposed in the first duct.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: July 3, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Thomas Hilber, Bernd Greiner, Hans-Peter Schommer, Noel Francon, Helmut Jaiser
  • Publication number: 20180180280
    Abstract: A combustion system includes a combustion chamber, a plurality of fuel introduction locations in the combustion chamber where fuel and air are provided to the combustion chamber for combustion, a fluid flow control device associated with each fuel introduction location, each fluid flow control device being controllable to vary an amount of the air supplied to each fuel introduction location, a plurality of sensing devices configured to monitor a plurality of operational parameters of the combustion system, and a control unit configured to control each fluid flow control device to control the amount of air supplied at each fuel introduction location independent of the amount of air supplied at the other fuel introduction locations, and to control the amount of air provided to all other air introduction locations, in dependence upon at least one of the plurality of operational parameters to minimize excess air provided to the combustion chamber.
    Type: Application
    Filed: December 27, 2016
    Publication date: June 28, 2018
    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: CARL NEUSCHAEFER, CARL BOZZUTO, JOSEPH QUINN
  • Publication number: 20180178163
    Abstract: A method for recapturing sulfur in a chemical looping system includes receiving a flue gas stream containing a sulfur-containing species, reducing a temperature of the flue gas stream, introducing a calcium-based makeup material to the reduced temperature flue gas stream, capturing the sulfur-containing species from the reduced temperature flue gas stream, and recycling the sulfur-containing species to a reducer of the chemical looping system.
    Type: Application
    Filed: December 27, 2016
    Publication date: June 28, 2018
    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: DAVID GORDON TUREK
  • Publication number: 20180178160
    Abstract: A system for recovering ammonia from a gas stream is provided. The system includes a regenerator and a carbon dioxide wash station.
    Type: Application
    Filed: December 22, 2016
    Publication date: June 28, 2018
    Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Sanjay Kumar Dube, Stephen Alan Bedell
  • Patent number: 10005021
    Abstract: A system for recovering ammonia from a gas stream is provided. The system includes a regenerator and a carbon dioxide wash station.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: June 26, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Sanjay Kumar Dube, Stephen Alan Bedell
  • Patent number: 10005030
    Abstract: The flue gas treatment system (1) comprises a reactor (2), a pre-separator (3) downstream of the reactor (2), a separator (4) such as a fabric filter downstream of the pre-separator (3), a humidifier (5) downstream of the separator (4), a supply (7) of a pure fresh reagent into the flue gas (FG) downstream of the pre-separator (3) and upstream of or at the separator (4).
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: June 26, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Robert Råhlin
  • Patent number: 10006632
    Abstract: A method and apparatus for treatment of unburnts utilizing oxygen carrier particles, which may be CLOU particles, oxidized in an air reactor and transmitted to a post oxidation reactor as shown in FIG. 2. A flue gas stream containing unburnts is injected into post oxidation reactor wherein unburnts are oxidized by oxygen supplied by oxygen carriers. Reduced oxygen carriers are separated from post oxidation reactor and transmitted back to air reactor for re-oxidation. An embodiment may include a post oxidation chamber, which may be catalytic, receiving a portion of flue gas stream and oxygen from a flue gas stream of post oxidation reactor.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: June 26, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Marc Ajhar, Jörgen Grubbström, Corinne Beal
  • Patent number: 10006313
    Abstract: The invention refers to a CCPP comprising a gas turbine, a water steam cycle with a steam turbine and a HRSG with at least two pressure levels, and a fuel preheater for preheating the fuel of the gas turbine. The fuel preheater includes a first heat exchanger for preheating the fuel to a first elevated temperature, which is connected to a feed water line from a pressure level of the HRSG, which is below the highest HRSG pressure level, and a second heat exchanger for further preheating the fuel gas to a second elevated temperature, which is connected to the high pressure feed water with the highest pressure level of the HRSG. The disclosure further refers to a method for operating a CCPP with such a fuel preheater.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: June 26, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Paul Drouvot, François Droux, Klara Berg
  • Patent number: 10005055
    Abstract: A rotary bottom ash regenerating (RBAR) system [100] comprises a cylindrical body [110] that receives ash [17] containing reactant particles [10] that are partially reacted limestone compounds having unreacted cores [13] from a furnace. Sensors [140] sense physical parameters within the cylindrical body [110]. A controller [170] receives the output of the sensors [140] and information indicating the amount of unreacted core [13] and causes a fluid actuator [135] to spray a proper amount of regeneration fluid regulator [135] from a plurality of spray nozzles [131] to different locations within the cylindrical body [110] to regulate the temperature and to cause the reactant particles [10] to have a require content of regeneration fluid. This causes the reactant particles [10] to be regenerated and reused. This results in a lower limestone costs and less overheating of ash handling systems.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: June 26, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Iqbal F. Abdulally
  • Patent number: 10006634
    Abstract: A coal fired Oxy boiler power plant having a combustion system configured to burn coal using an oxygen stream to produce a flue gas stream, a CO2 capture system connected to the flue gas stream and a steam cycle with serially arranged low pressure heaters forming part of a condensate system. The combustion system includes, an Air Separation Unit for removing N2 from air to produce the oxygen stream for the boiler. The Air Separation Unit includes an Air Separation Unit heat exchanger that is thermally and fluidly connected to the condensate system so as to be fluidly parallel to at least one serial low pressure heater and fluidly parallel to at least one less that the total number of serial low pressure heaters. The Flue Gas Heat Recovery System, Flue Gas Condenser and Gas Processing unit are thermally integrated into the condensate system.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: June 26, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Thierry Pourchot, Francois Granier, Frederic Geiger
  • Patent number: 10006296
    Abstract: A method and a blade for a turbine or, more generally a turbomachine, are described with the blade having at a top end a shroud segment designed to engage with shroud segments of adjacent blades in an ring-shaped assembly at least partly by means of assembling the blades with the shroud segment having a central indentation along an engaging face.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: June 26, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Dilli Prasad Ramannagari, Pierre-Alain Masserey, Ross Brian Fleming, Christina Calcagni