Patents Assigned to General Electric Technology GmbH
  • Patent number: 10291029
    Abstract: The technology is generally directed towards real-time power grid island detection and monitoring, including obtaining and outputting information about the cause and location of the islanding event, island size, island composition, phasor measurement units in each island, and the overall island frequency. The technology provides for suggested island resynchronization actions such as one or more circuit breakers that can be closed by the power grid system operators to resynchronize an island with the main island/system. An application program may output the information and also assist the operators during the resynchronization process by providing real time information about the voltage difference and frequency difference across each proposed circuit breaker in the suggested restoration point. Real-time tracking of the island resynchronization actions is also described.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 14, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Manu Parashar, Anil Jampala, Jay Giri, Saugata Swapan Biswas
  • Patent number: 10284059
    Abstract: The method for manufacturing a stator of an electric machine includes providing a lamination element extending over an annular sector, horizontally moving the lamination element towards a fitting zone, then angularly regulating the lamination element position, and connecting the lamination element to other lamination elements to define the stator.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: May 7, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Massimiliano Visintin, Walter Soehner
  • Patent number: 10284103
    Abstract: A power converter includes first and second DC terminals between which the power converter is operable to generate a voltage difference. The power converter also includes a control unit that is configured to operate in a normal mode during normal operation of the power converter and in a fault mode when a fault occurs in a respective DC power transmission medium that is operatively connected in use to one of the first or second DC terminals. The control unit in the normal mode generates a normal operating voltage difference between the first and second DC terminals. The control unit in the fault mode generates a modified operating voltage difference between the first and second DC terminals while maintaining the respective voltage potential with respect to earth of the other of the first and second DC terminals. The modified operating voltage difference is lower than the normal operating voltage difference.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: May 7, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Carl David Barker
  • Patent number: 10274192
    Abstract: Disclosed herein is a once-through evaporator comprising an inlet manifold; one or more inlet headers in fluid communication with the inlet manifold; one or more tube stacks, where each tube stack comprises one or more inclined evaporator tubes; the one or more tube stacks being in fluid communication with the one or more inlet headers; where the inclined tubes are inclined at an angle of less than 90 degrees or greater than 90 degrees to a vertical; one or more outlet headers in fluid communication with one or more tube stacks; and an outlet manifold in fluid communication with the one or more outlet headers.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: April 30, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Vinh Q. Truong, Christopher J. Lech, Jeffrey F. Magee
  • Patent number: 10273551
    Abstract: In the case of a method for the heat treatment of erected, preferably large-area tube wall regions or tube wall segments, in particular of a diaphragm wall, of a steam generator, in particular of a power plant, in the installed state, it is sought to provide a solution which permits the use of steel types which are more problematic with regard to power plant operation with elevated steam parameters, in particular the steels T23 and T24, in the erection of steam generators. This is achieved in that the tube wall regions or tube wall segments for heat treatment are subjected, in the installed state in the steam generator, and in particular over a large area, to a stress-relief annealing process.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: April 30, 2019
    Assignees: Mitsubishi Hitachi Power Systems Europe GmbH, General Electric Technology GmbH
    Inventors: Jürgen Müller, Rudolf Thesing, Kurt Busekrus, Carsten Stegemann, Gerhard Weissinger, Michael Heim, Thoralf Berndt
  • Patent number: 10270246
    Abstract: A method and apparatus for controlling a voltage source converter to energize a DC link. A voltage order generating module generates a voltage order for controlling the voltage source converter to generate a DC voltage on the DC link. An oscillation damping module monitors the DC current flow to determine an indication of current oscillation and the voltage order is based on a voltage reference signal which is modulated by the indication of current oscillation to provide oscillation damping.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: April 23, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Robin Gupta, Carl Barker, Andrzej Adamczyk
  • Patent number: 10267842
    Abstract: A method for identifying a faulted DC power transmission medium in a multi-terminal DC electrical network is provided. The DC electrical network includes multiple terminals connected via DC power transmission media. The method includes detecting a fault occurring in the DC power transmission media and, after detecting the fault, measuring a surge arrival time at each terminal, each surge arrival time being the difference between the time of detecting the fault and the time of arrival of an electrical wave surge generated by the fault at the corresponding terminal. The method further includes comparing the surge arrival times between the terminals to identify DC power transmission media in which the fault is not located, allocating a healthy status to the media in which the fault is not located, and identifying the faulted DC power transmission medium as being the DC power transmission medium/media without a healthy status.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: April 23, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Masoud Bazargan, Kyriaki Maleka
  • Patent number: 10267183
    Abstract: A damper assembly for minimizing heat loss through an exhaust includes a housing mounted within the stack and a bladder received within the housing. The bladder is selectively movable between a first position in which the bladder is deflated and received within the housing, and second position in which the bladder is positioned outside the housing and inflated such that a peripheral surface of the bladder contacts an interior sidewall of the stack to create a gas seal.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: April 23, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Glauco Epis, Luca Angelo Cinquegrani, Luca Rigoni
  • Patent number: 10263425
    Abstract: A power transmission network including a single-phase or multi-phase AC electrical system, a converter including an AC terminal, a point of common coupling, a phase reactance connecting the common coupling to each AC terminal, and a transmission medium to interconnect the common coupling and the electrical system. The network includes a controller to: process the voltage and current at the common coupling to compute a state vector; derive a converter demand by combining the state vector with control parameters, including the capacitance of the power transmission medium presented at the common coupling and the impedance of the phase reactance; and operate the converter according to demand controlling the voltage at each terminal and/or the common coupling to inhibit any perturbation in the converter voltage from a target converter voltage or range resulting from the interaction between the capacitance of the power transmission medium and the impedance of the phase reactance.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: April 16, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Colin Donald Murray Oates, Bikash Pal, Linash Puthenpurayil Kunjumuhammed
  • Patent number: 10260347
    Abstract: The technical field of the invention is steam turbines including a steam feed circuit based on a functional steam generator set that may be nuclear- or fossil-fuel powered, and in particular a steam feed circuit (1) of a turbine (2), comprising n main steam lines (3) and n? steam admission lines (4) to the turbine, the number n? of steam admission lines (4) to the turbine being strictly greater than the number n of main steam lines (3), characterized in that there are n direct steam admission lines (5) to the turbine linking the as main steam lines (3) directly to the steam admission lines (4) to the turbine.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: April 16, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Vincent Jourdain, Bernard Viola, Damien Milet
  • Patent number: 10262813
    Abstract: A medium-, high-, or very high-voltage circuit breaker (10), comprising at least one arc-control chamber (12) and an outer casing (14) in which the arc-control chamber (12) is arranged. In the invention, the circuit breaker includes sealing ring (52) for sealing an opening (50) in a discharge cap (40) of the arc-control chamber (12), the ring (52) being movable between a sealing position and a retracted position in which they allow the gas to pass, the circuit breaker being configured in such a manner that in the closed position, the sealing ring (52) are in their retracted position, and in such a manner that passage from the retracted position to the sealing position takes place during an operation of opening the circuit breaker.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: April 16, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Emilien Pierres, Nicolas Toquet, Roger Ledru, Jean-Baptiste Jourjon, Laurent Boget
  • Patent number: 10261535
    Abstract: The subject specification comprises enhanced power system balance control for a multi-tier hierarchical electrical distribution network (EDN). The EDN comprises a specified number of distribution network node controller (DNNC) components employed to desirably control power system balance, data communications, and power distribution between respective tiers of the EDN to facilitate efficient power distribution. In each tier, a power system balance component (PSBC), associated with a DNNC component, can monitor power system balance, such as load phase balance, associated with multi-phase power distribution for its tier, and detect power system imbalances in that tier. A power balance correction action can be identified and executed (e.g., automatically) in response to the detected power system imbalance to rectify the imbalance, wherein the correction action can include dynamic switching of loads between phases and/or filtering of the power signal.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: April 16, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Ethan Clair Boardman, Subrahmanyam Saraswati Venkata
  • Patent number: 10253654
    Abstract: The invention relates to a method for starting a steam turbine. The method involves pre-warming the steam turbine with a steam in which 65% of an energy used to pre-warming the steam turbine is derived from a latent heat energy of the steam.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: April 9, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Erhard Liebig, Jean-Marie Gut, Hansjörg Klaiber, Martin Schoenenberger, Goran Hajko
  • Patent number: 10253973
    Abstract: A power plant is suggested with an additional heat transfer between the flue gas that flows through a flue gas line (5) and the feed-water in a feed-water line (19). The claimed arrangement of the first heat exchanger (13) upstream and adjacent to a precipitator (7) leads to a reduced space demand and optimizes dust precipitation as well as the pressure drop of the flue gas.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: April 9, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Volker Schüle, Daniel Zimmer
  • Patent number: 10256040
    Abstract: A method of assembling a transformer/reactor is disclosed comprising the steps of: receiving a first coil having a first coil end conductor; receiving a second coil having a second coil end conductor; mounting the first coil and second coil on respective limbs of a magnetic core; arranging the first coil such that the first conductor projects outwardly from the first coil from a point between the first and second coils; arranging the second coil such that the second conductor projects outwardly from the second coil from a point between the first and second coils; and connecting the conductors to form an interconnection between the coils.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: April 9, 2019
    Assignee: General Electric Technology GmbH
    Inventor: David Wright
  • Patent number: 10247324
    Abstract: A flow control device is used to regulate fluid flow from an upstream supply source to a downstream destination within a plant. At least portions of the flow control device are fabricated from one or more thermostatic materials selected based on the specific thermostatic properties thereof. The basic arrangement of the flow control device includes at least one housing with at least one thermostatic beam and at least one wall fixed thereto to define a void interior area with opposed open ends, and a center plug member with at least one opening in at least one wall thereof arranged within the interior area for temperature dependent fluid flow therethrough.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: April 2, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Jeffrey Fred Magee
  • Patent number: 10243484
    Abstract: A current flow control assembly, for controlling current flow in an electrical network of interconnected electrical elements, having: current flow controllers, each current flow controller connectable to at least one of the interconnected electrical elements, and being configured to control current flow in at least one of the interconnected electrical elements within a current flow control range; a control unit in communication with each of the current flow controllers, wherein the control unit is configured to: select at least one of the current flow controllers with a flow control range that corresponds to one or more current flow control requirements of the electrical network; and operate the selected current flow controller to control current flow in at least one of the interconnected electrical elements to control current flow in the electrical network in accordance with the current flow control requirement of the electrical network.
    Type: Grant
    Filed: November 7, 2015
    Date of Patent: March 26, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Fainan Anmed Abdul Maguid Mohammed Hassan, Joan Saubassols, Eduardo Prieto Araujo, Oriol Gomis Bellmunt
  • Patent number: 10236146
    Abstract: The invention relates to an electric arc-blast nozzle for a circuit breaker comprising a middle portion forming a throat defining internally an axial passage for interrupting an electric arc, and two end portions extending on either side of the middle portion and being designed to receive respective arcing contacts and that are movable axially relative to each other. The middle portion and the two end portions are made of a same dielectric material obtained from a composition consisting of a fluorocarbon polymer matrix and of at least one oxide, the oxide(s) being present in a proportion by weight lying in the range 11% to 50%, relative to the total weight of the composition. The invention also relates to a circuit breaker including such a nozzle.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: March 19, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Daniel Vigouroux, Thomas Berteloot
  • Patent number: 10232328
    Abstract: A gas mixing arrangement for mixing a process gas (MF) of a process plant, which arrangement comprises a gas duct (10a) for flow of said process gas, a mixing plate section (24) arranged in the gas duct (10a) and comprising at least one mixing plate (42, 44) arranged at an angle with respect to a main flow direction (C) of said process gas flowing through the gas duct (10a). The arrangement further comprises a guide vane section (22) arranged upstream of said mixing plate section (24) to cooperate therewith in mixing the process gas (MF) flowing through the gas duct (10a), the guide vane section (22) comprises a first group of guide vanes (26) arranged to direct a first gas flow portion (GP1) in a direction towards a first side wall (34) of the gas duct (10a), and a second group of guide vanes (28) arranged to direct a second gas flow portion (GP2) in a direction towards a second side wall (36) of the gas duct (10a), said second side wall (36) being opposite said first side wall (34).
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: March 19, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Ali Tabikh, Anders Hjelmberg
  • Patent number: 10236736
    Abstract: A damper finger segment is radially disposed between a retaining ring and a damper ring arrangement at a rotor end of a generator arrangement, in particular of a high power turbogenerator, having a multitude of plate-like finger elements with a longitudinal extension and arranged parallel to each other. Each neighboring pair of finger elements encloses a gap and all finger elements are joined at one end of each finger element by a band-like strip section having a longitudinal extension being oriented orthogonally to the longitudinal extension of the finger elements. At least one slot is provided in each plate-like finger element and/or in the band-like strip section. The at least one slot has a slot axis oriented parallel to the longitudinal extension of the plate-like finger elements.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: March 19, 2019
    Assignee: General Electric Technology GmbH
    Inventors: Bartolomeus Irwanto, Yvonne Riedling, Gunter Scherf