Patents Assigned to General Electric Technology GmbH
  • Patent number: 10852335
    Abstract: This disclosure relates to systems and methods for estimation of electrical grid parameters. An example system may include a data acquisition module configured to acquire electrical parameters. The electrical parameters can be measured at electrical components of the electrical grid. The electrical components may include at least one transmission line and at least one transformer. The system may include a parameter estimation module configured to analyze the electrical parameters to estimate impedance parameters associated with the electrical components and provide, via a user interface, at least one indication regarding the impedance parameters. The system may further include a line sagging detection module configured to estimate, based on the impedance parameters, at least one line sagging parameter indicative of sagging of the transmission line. The line sagging detection module can be further configured to output at least one indication regarding the sagging of the at least one transmission line.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: December 1, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GmbH
    Inventors: Saugata Swapan Biswas, Srinivas Musunuri, Siddharth Likhate, Weiguo Wang
  • Patent number: 10846039
    Abstract: Methods are provided for creating dynamic lists from selected areas of a power system of a utility company. The utility company has an energy management system with a control panel. The energy management system is used to access one or more source displays of a site. Rubber-banding or lassoing is used to create selected areas from at least a portion of the source displays. Lists are created dynamically. Operator defined information is displayed for each element type in a list of network elements from the selected areas that have been rubber-banded or lassoed.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: November 24, 2020
    Assignee: General Electric Technology GmbH
    Inventors: Gennaro Castelli, Michael Hackett, Michael Quinn Howard, Lawrence Edmund Jones, HuiChu Su Shung, Heath Daniel Brand
  • Patent number: 10831224
    Abstract: This application relates to methods and apparatus for control of voltage source converters. The control apparatus has a reference voltage generator that generates a voltage control signal as part of a voltage control loop. The reference voltage generator may be a DC voltage/power controller operated to regulate DC voltage or power and may generate the voltage control signal based on a feedback DC voltage/power signal and a defined set-point. An overcurrent controller generates a current control signal for modulating the voltage control signal to prevent an overcurrent. The overcurrent controller generates the current control signal as part of a control path that is independent from the voltage control loop. The DC voltage/power controller may thus directly generate a voltage reference and may act to keep the DC voltage substantially constant over the time scale of short term transients, with the overcurrent controller providing current limiting only when required.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: November 10, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Andrzej Adamczyk
  • Patent number: 10833667
    Abstract: In the field of gate drivers for switching devices with a gate terminal via which the switching device can be turned on and off, a switching stage (10; 90) comprises first and second input terminals (12, 14) that are connectable in use with corresponding positive and negative terminals (16, 18) of a regulated voltage source (20). The switching stage (10; 80; 90) also includes an output terminal (34) which is connectable in use with a gate terminal (36) of a switching device (28). In addition the switching stage (10; 80; 90) includes a secondary energy storage device (38) that is electrically connected with the first and second input terminals (12, 14) to in use receive and store energy via the regulated voltage source (20).
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: November 10, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Colin Charnock Davidson
  • Patent number: 10830807
    Abstract: There is provided a method of locating a fault in a power transmission scheme. The power transmission scheme includes power transmission sections and a first end connection point, a second end connection point, and at least one intermediate connection point. The method includes (i) measuring first and second end voltage phasors at the first and second end connection points respectively; (ii) obtaining a first set of voltage phasors, which includes the measured first end voltage phasor and includes respective voltage phasors at each of the second and intermediate connection points; (iii) obtaining a second set of voltage phasors, which includes the measured second end voltage phasor and includes respective voltage phasors at each of the first and intermediate connection points; (iv) comparing the first and second sets of voltage phasors to identify the power transmission section or connection point corresponding to the location of the fault.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: November 10, 2020
    Assignee: General Electric Technology GmbH
    Inventors: Hengxu Ha, Sankara Subramanian
  • Patent number: 10828588
    Abstract: The invention relates to a gas liquid separator, for separating liquid droplets from a gas flowing generally in a main gas flow direction through the gas liquid separator. The gas liquid separator comprises a plurality of plates, mutually parallel and spaced apart to form a flow channel there between. Each plate having a plurality of corrugations wherein at least one of the corrugations has an extrados wing profile shaped camber.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: November 10, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Loris Padovan
  • Patent number: 10823622
    Abstract: The invention relates to a device for measuring temperature in a high-voltage portion of a switchgear station, characterised in that it comprises: at least one temperature sensor (21, 22, 23, 24) located at a point on the high-voltage portion of which the temperature is to be monitored, at least one antenna (25) connected to the at least one temperature sensor, a control module (26) located in a low-voltage portion of the switchgear station, and at least one antenna (27) connected to the control module. The at least one temperature sensor (21, 22, 23, 24) is suitable for transmitting a signal representative of a temperature measurement and the control module (26) is suitable for receiving the representative signal, via the antennas, and for processing said signal in order to produce a message.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: November 3, 2020
    Assignee: General Electric Technology GmbH
    Inventors: Eros Stella, Jean-Luc Rayon, Vincenzo Girlando
  • Patent number: 10821400
    Abstract: A method for removing NOx from flue gas by SCR includes supplying a reagent for the SCR reaction of NOx into the flue gas, then contacting the flue gas with a catalyst. Supplying the reagent includes supplying a less than stoichiometric amount of reagent, and after contacting the flue gas with a catalyst a final NOx removal step is provided.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: November 3, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Olaf Stallmann, Wuyin Wang, Jean-Marc Gilbert Amann, Frank Klaus Ennenbach
  • Patent number: 10823420
    Abstract: A burner for a combustor of a turbomachine includes a pilot nozzle with inline premixing. The pilot nozzle is formed in an aft end of the burner. An air inlet is formed in a forward end of the burner in fluid communication with the pilot nozzle. A mixing channel extends along the axial direction between the air inlet and the pilot nozzle such that the air inlet is in fluid communication with the pilot nozzle via the mixing channel. An annular fuel plenum extends along the circumferential direction. A fuel port is in fluid communication with the annular fuel plenum and the mixing channel, the fuel port includes an outlet configured to inject fuel into the mixing channel such that a shear flow is induced.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: November 3, 2020
    Assignee: General Electric Technology GmbH
    Inventors: Simone Roberto Walter Camponovo, Fulvio Magni, Ewald Freitag, John Philip Wood, Andre Theuer, Rohit Kulkarni
  • Patent number: 10811864
    Abstract: A circuit-breaker device, comprising a main branch and an auxiliary branch electrically in parallel with the main branch, wherein the main branch comprises at least one mechanical switch-disconnector in series with a breaker cell constituted of at least one semiconductor switch, and a snubber circuit in parallel with the at least one breaker cell, the snubber circuit including an energy storage element, wherein the mechanical switch-disconnector is switchable to selectively allow current to flow in the main branch in a first mode of operation or commutate current from the main branch to the auxiliary branch in a second mode of operation, characterized in that the snubber circuit further comprises a bleeder resistor arranged to create a counter current in the main branch when current is commutated from the main branch to the auxiliary branch by discharging the energy storage element.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 20, 2020
    Assignee: General Electric Technology GmbH
    Inventor: Jean-Pierre Dupraz
  • Patent number: 10812065
    Abstract: There is provided a power supply control apparatus for connection to electrical inputs of an electronic device wherein each electrical input is operatively connected to a power source having a sequencer circuit and a control element, the sequencer circuit including sequencer stage(s). The sequencer circuit selectively receives an indication signal, the sequencer circuit selectively receives a positive indication signal indicative of a voltage supplied to a first of the electrical inputs reaching or passing a predefined voltage threshold, and the sequencer circuit selectively provides a control signal to the control element, the control element triggerable by a positive control signal. Each sequencer stage includes circuit elements, the first selectively receives an input signal and selectively provides an intermediate signal to the second, the second selectively provides an output signal.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: October 20, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Jun Yan
  • Publication number: 20200328740
    Abstract: A switching valve includes series-connected switching elements and auxiliary circuits. Each auxiliary circuit is connected in parallel with a respective one of the series-connected switching elements. Each auxiliary circuit includes a respective auxiliary capacitor. The method includes carrying out a compensation procedure. The compensation procedure includes: initiating a turn-off event by sending a respective turn-off control signal to each switching element; measuring a respective capacitor voltage value of each auxiliary capacitor after the turn-off event; comparing the measured capacitor voltage values; and using the comparison between the measured capacitor voltages as a reference to adjust the time of sending a or a respective turn-off control signal to at least one of the switching elements so as to reduce a or a respective time difference between the turn-off times of the switching elements at the next turn-off event.
    Type: Application
    Filed: May 26, 2017
    Publication date: October 15, 2020
    Applicant: General Electric Technology GmbH
    Inventors: Francisco Javier CHIVITE ZABALZA, Pablo BRIFF, Jonathan Christopher NICHOLLS
  • Patent number: 10802084
    Abstract: The open-phase condition of a standby power transformer is detected by monitoring functions of the phase currents. The functions have parameters calculated based on reference currents, which constitute a “fingerprint” when all the phases are connected.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: October 13, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: James Blake
  • Patent number: 10799874
    Abstract: The present disclosure relates to a pulverizer includes a pulverizer housing with an grinding assembly having a grinding table situated therein. The grinding table provides a grinding surface area for a material, such as a fossil fuel, such as coal, to be pulverized. The grinding table is mounted on a gearbox shaft operatively connected to a gearbox drive mechanism so as to be capable of driven rotation within the pulverizer housing. A journal assembly having a journal head and the journal assembly and a spring assembly are mounted on the pulverizer housing so that the journal head engage the spring assembly.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: October 13, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Satya Sai Ramchandra Rao Indraganti, Krishnendu Aditya, Sunil Chauhan, Mahesh Govind Kendhe
  • Patent number: 10790661
    Abstract: There is disclosed a controller (112) for a power electronic network element (110) of a power transmission network (100), wherein the controller (112) is configured to vary a control parameter of the network element (110) which at least partly determines a ripple profile in a transmission line of the network. The controller (112) is configured to vary the control parameter between at least a first value and second value to cause the ripple profile in the transmission line to change; and the controller is configured to vary the control parameter periodically or in response to a signal indicating a threshold temperature at a hotspot location along the transmission line. A method of optimising control parameters for a power transmission network (100) is also disclosed.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: September 29, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Andrzej Adamczyk, Rosemary King, Antonios Tzimas
  • Patent number: 10782016
    Abstract: A system for removing impurities from post-combustion gas includes an oxidizer and a reducer operatively connected to the oxidizer, the reducer configured to receive the post-combustion gas. The system further includes a CLOU material capable of selective circulation between the oxidizer and reducer. The CLOU material further oxidizes impurities present in the post-combustion gas to reduce or remove the same.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: September 22, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Iqbal Abdulally, Shin Gyoo Kang
  • Patent number: 10779448
    Abstract: In the field of voltage assemblies with a charge storage capability for use in high voltage direct current converters there is provided a corona shield. The corona shield includes a peripheral frame which is formed from one or more frame members and within which lies a frame aperture. The corona shield also includes a barrier member that is fixedly secured to the peripheral frame. The barrier member extends across and occludes the frame aperture to inhibit bodily ingress through the frame aperture.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: September 15, 2020
    Assignee: General Electric Technology GmbH
    Inventor: John Lewis Outram
  • Patent number: 10775039
    Abstract: The method for managing a shut down of a boiler having a duct and heat exchanging components is provided. The heat exchanging component having tubed heat exchanging surfaces within the duct and headers outside the duct. The method includes regulating the temperature of the headers during shut down to a temperature close to the one expected for the steam moving from the tubed heat exchanging surfaces into the headers at a starting up following the shut down.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: September 15, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Michael Heim, Thomas Ferrand
  • Patent number: 10778011
    Abstract: In the field of high voltage direct current (HVDC) power transmission there is provided a power converter assembly (10) comprising a line-commutated power converter (12) that is configured to transfer power from a DC network (14) to a corresponding receiving AC network (16). The power converter assembly (10) also includes a control unit which is operatively associated with the line-commutated power converter (12) and is programmed, in response to the receiving AC network (16) exhibiting a reduced AC voltage (Va, Vb, Vc), to cause a reduction in the operating DC voltage (VDC) of the line-commutated power converter (12) by the DC network (14).
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: September 15, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Robert Whitehouse, Carl D. Barker, Ghirmazion Ghebreyesus
  • Patent number: 10773346
    Abstract: A method of assembling a heat exchanger includes the steps of fluidly connecting a plurality of first heat exchanger tubes to a first connecting tube portion at an assembly location to form a first subassembly, fluidly connecting a plurality of second heat exchanger tubes to a second connecting tube portion at the assembly location to form a second subassembly, transporting the first subassembly and the second subassembly from the assembly location to an installation location, and connecting the first subassembly to the second subassembly at a single connection point between the first connecting tube portion and the second tube connecting portion.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: September 15, 2020
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Stephen Michael Renals