Patents Assigned to General Electric Technology GmbH
  • Patent number: 10984973
    Abstract: Embodiments of the disclosure relate to an electric switching unit provided with an arc-blasting unit. In one embodiment, an electric switch can be provided. This electric switch can include an arc-blasting unit with a compression cylinder enclosing a compression chamber mobile together with the mobile contacts, and a stationary piston at an end of the compression chamber, provided with a support rod made up as a blowpipe which channels the gas compressed in the chamber when the contacts separate to a nozzle that directs the flow to a separation place of the contacts so as to efficiently blast electric arcs. The arrangement can be relatively lightweight and can occupy relatively little space.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: April 20, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Thomas Sikorski, Boris Nechal, Robert Luescher
  • Patent number: 10985671
    Abstract: A converter (30) comprises first and second DC terminals (32,34) connectable in use to a DC network (40), the converter (30) including a converter limb (36) extending between the DC terminals (32,34), the converter limb (36) including first and second limb portions separated by an AC terminal (38), the AC terminal (38) connectable in use to an AC voltage, each limb portion including at least one director switch (44) connected in series with a waveform synthesizer between the AC terminal (44) and a respective one of the first and second DC terminals (32,34), the waveform synthesizers operable to control the modulation of an AC voltage waveform at the AC terminal (38), each director switch (44) operable to switch the respective waveform synthesizer into and out of circuit between the respective DC terminal (32,34) and the AC terminal (38); and a controller (56) programmed to selectively control the switching of the director switches (44) to switch both of the limb portions into circuit concurrently to form a cu
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: April 20, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Rajaseker Ginnareddy, David Reginald Trainer, Carl David Barker
  • Patent number: 10983150
    Abstract: Various embodiments described in this disclosure pertain to methods and systems for detecting and evaluating oscillations in an electrical power grid. The oscillations can include one or more oscillatory conditions, which can occur in one or more of five predefined frequency bands. Each of the five predefined frequency bands is categorized at least in part, by oscillations that are originated by uniquely different sources. In one embodiment, an oscillation detector can be used to detect the oscillatory condition and determine a magnitude characteristic, a phase characteristic, and/or a damping characteristic of at least one oscillation frequency that contributes to the oscillatory condition.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: April 20, 2021
    Assignee: General Electric Technology GmbH
    Inventors: Zhiying Zhang, Ilia Voloh, Mark Gerard Adamiak
  • Patent number: 10981109
    Abstract: A wet scrubber (14) useful for reducing flue gas sulphur oxides and particulate matter comprising an at least first spray level arrangement (34) arranged horizontally in a wet scrubber tower (16). The at least first spray level arrangement (34) may comprise downwardly, upwardly, and/or combination downwardly and upwardly spraying nozzles (40). Arranged between the nozzles (40) is a plurality of single plates (76, 76A) and/or double plates (82) to direct flue gas flow into absorbent liquid or slurry atomized by the nozzles (40) for flue gas sulphur oxide and particulate matter reduction.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: April 20, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Rikard Bjoern Sture Haakansson
  • Patent number: 10974746
    Abstract: A system for remote control of locomotives over a single time division multiple access network is provided. The system includes a locomotive control unit configured to operatively control a locomotive. The locomotive control unit is suitable for transmitting and receiving information via the network. The system also includes at least two operator control units suitable for transmitting and receiving information via the network and a hump control unit suitable for transmitting and receiving information via the network. The network employs both spatial and frequency diversity for remote control. The locomotive control unit, the at least two operator control units, and the hump control unit will only transmit in a respective defined period of time.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: April 13, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Thomas Clayton Mayo, Jeffrey Michael Wilczewski, Kenneth Tuttle
  • Patent number: 10974307
    Abstract: An automated system for manipulating a workpiece includes a machining device, a locating device configured to determine a position of a workpiece, and a positioning system operatively connected to the machining device and being configured to adjust a position of the machining device to align a centerline of the machining device with a longitudinal axis of the workpiece, based upon the determined position of the workpiece. The machining device includes a stabilizing mechanism to engage the workpiece to maintain the workpiece in the determined position, and a cutting element for performing a machining operation on the workpiece.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: April 13, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Ronald Francis Konopacki, Allan Ferry
  • Patent number: 10976050
    Abstract: A method for preheating a beater mill is provided. The method includes: rotating a beater wheel disposed within the beater mill to facilitate circulation of a gas stream between the beater mill and a furnace fluidly connected to each other via both a pulverized fuel conduit and a flue gas recirculation conduit; generating a burner gas via a burner disposed within the flue gas recirculation conduit such that the burner gas joins and heats the gas stream circulating through the beater mill and the furnace; and adjusting at least one of an air supply and a fuel supply to the burner via a controller based at least in part on one of a temperature of the gas stream at an entrance of the beater mill, a temperature of the gas stream at an exit of the beater mill, and an oxygen level within the beater mill.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: April 13, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Dragisa Ristic, Rajkumar Daniel, Frank Michael Kluger
  • Publication number: 20210096166
    Abstract: Systems and methods are provided herein for improving distance protection in transmission lines. Such systems and methods may involve receiving one or more current and voltage inputs, and determining, based on the one or more current and voltage inputs, one or more current and voltage phasors, wherein the one or more current and voltage phasors are determined using a short window phasor estimation. Such systems and methods may also involve determining, within a single power cycle and based on the one or more current and voltage phasors, a fault in a transmission line. Such systems and methods may also involve sending, to a distance protection element and based on the determination that the fault exists, a signal to clear the fault in the transmission line, and clearing the fault in the transmission line.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 1, 2021
    Applicant: General Electric Technology GmbH
    Inventors: Hengxu Ha, Zhiying Zhang
  • Patent number: 10958099
    Abstract: This disclosure relates to systems and methods for real-time electrical power grid restorations. An example system may include a real-time monitoring module configured to acquire operational data associated with electrical grid components of an electrical grid. The system may further include a restoration manager module configured to detect, based on the operational data, one or more unplanned outages or other events in the electrical grid. In response to the detection, the restoration manager module can analyze the operational data to determine or select from a database a restoration plan. The restoration plan can include operations associated with commands for control devices, wherein the control devices are operable to control a power transmission between the electrical grid components. The restoration manager module can be further configured to execute the one or more operations of the restoration plan to restore the electrical power grid to a normal operational state.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: March 23, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Saugata Swapan Biswas, Srinivas Musunuri, Siddharth Likhate, Anil Kumar Jampala, Manu Parashar
  • Patent number: 10955131
    Abstract: A combustion system with a combustion area in a boiler including a fuel pipe for delivering fuel is disclosed. A duct having a bend extended there through is in fluid communication with the fuel pipe and the combustion area of the boiler. The duct has an outer perimeter and an inner perimeter. The duct includes a first partition plate to form a first parallel flow of the fuel between the outer perimeter and the first partition plate, upstream of the bend.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: March 23, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Dragisa Ristic, Frank Michael Kluger
  • Patent number: 10951109
    Abstract: In the field of line commutated converters, for use in high voltage direct current (HVDC) power transmission, a line commutated converter comprises a plurality of converter limbs that extend between first and second DC terminals. Each converter limb includes first and second limb portions which are separated by an AC terminal. The first limb portions together define a first limb portion group and the second limb portions together define a second limb portion group. Each limb portion includes at least one switching element that is configured to turn on and conduct current when it is forward biased and it receives a turn on signal and to naturally turn off and no longer conduct current when it is reverse biased and the current flowing through it falls to zero. The converter also includes a control unit.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: March 16, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Robert Stephen Whitehouse, Carl David Barker
  • Patent number: 10948182
    Abstract: The present disclosure relates to a system and a method for combustion of solid fuels. The combustion system includes burners which supply a mixed flow of fuel and air through a fuel nozzle to the combustion chamber for example of a boiler. The mixed flow of fuel and primary air is supplied to the burner through a duct from a pulverizer where the fuel is grinded to the required finesse. The duct further bends in such a way that one portion is vertical with respect parallel to axis of the boiler 1 A-A is vertical duct and other portion is horizontal duct which is parallel to axis B-B of the fuel nozzle.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 16, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Thomas Hilber, Thomas Wild, Dragisa Ristic, Noel Francon
  • Patent number: 10941466
    Abstract: A Ni-base superalloy composition to be used for powder-based additive manufacturing (AM) technology, such as selective laser melting (SLM) or electron beam melting (EBM). The cracking susceptibility during an AM process is considerably reduced by controlling the amount of elements, especially Hf, that form low-melting eutectics.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: March 9, 2021
    Assignee: General Electric Technology GmbH
    Inventors: Roman Engeli, Thomas Etter, Fabian Geiger
  • Patent number: 10934892
    Abstract: An axial flow turbine comprising a casing, a rotor having an axial rotational axis and rotatably mounted into the casing, at least one set of a plurality of moving blades supported by the rotor; and at least one diaphragm having an outer ring, an inner ring, concentric to the outer ring, and a plurality of static blades mounted therebetween, at least the outer ring being split in an upper half and a lower half along a vertical joint plane. The turbine diaphragm comprises an assembly system for assembling the upper half to the lower half while allowing the upper half and the lower half to move axially relative to each other.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: March 2, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Julien Lemaire, Eric Ollivau, Dominique Travers
  • Patent number: 10928814
    Abstract: This disclosure relates to systems and methods for performing an autonomous procedure for monitoring and diagnostics of a machine using electrical signature analysis. In one embodiment of the disclosure, a method includes providing electrical data of an electrical rotating machine associated with at least one fault frequency. While in a learning mode, the method includes converting the electrical data from a time domain to a frequency domain to obtain baseline data. While in an operational mode, the method includes converting the electrical data from the time domain to the frequency domain to obtain monitoring data. The method further includes determining, based at least on the monitoring data, a ratio value at the fault frequency, determining a rate of change of the ratio value at the fault frequency, and, optionally, issuing, based on the rate of change, an alarm concerning at least one event of the electrical rotating machine.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: February 23, 2021
    Assignee: General Electric Technology GmbH
    Inventors: Prabhakar Neti, Sudhanshu Mishra, Balamourougan Vinayagam, Mitalkumar Kanabar, Balakrishna Pamulaparthy, Vijayasarathi Muthukrishnan
  • Patent number: 10931105
    Abstract: A power transmission network includes converters interconnected via electrical elements, at least one power flow router, and a controller. Each power flow router being operatively connected to the electrical elements, each power flow router configured to selectively control current flow in the electrical elements so as to direct power between two or more of the plurality of converters.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: February 23, 2021
    Assignee: General Electric Technology GmbH
    Inventors: Carl David Barker, Pablo Briff, Francisco Jose Moreno Munoz, Rosemary King
  • Patent number: 10919016
    Abstract: A system and method of using the system for controlling oxidation of sulfites to reduce total nitrite and nitrate levels in a slurry is disclosed. The system includes a tank having an inlet for receiving a slurry produced in a wet flue gas desulfurization process. The tank also includes an inlet for receiving a gas. The inlet for receiving the gas is operable to disperse at least a portion of the gas received in the tank through at least a portion of the slurry received in the tank. A sensor is configured to measure a sulfite concentration of the slurry received in the tank to obtain a sulfite concentration measurement. In some embodiments, the sensor is a sulfite analyzer. In other embodiments, the sensor is a virtual analyzer. The system also includes a controller. Software executing on the controller generates an electronic signal affecting an adjustment of a flow rate of gas into the slurry in the tank based at least in part on the sulfite concentration/sulfite concentration measurement.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: February 16, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Raymond Raulfs Gansley
  • Patent number: 10914202
    Abstract: A water/steam system for a combined cycle power plant and related method for operating said system are provided. The system comprises a heat recovery steam generator providing a flue gas stream path for extracting heat from a flue gas stream exhausted from a gas turbine, the heat recovery steam generator having a low pressure section including a low pressure evaporator arranged along the flue gas stream path for generating low pressure steam at a low pressure input level for a main input of a low pressure steam turbine. To use heat at low temperatures, the low pressure section may include a sub low pressure subsection with a sub low pressure evaporator for generating sub low pressure steam, at a sub low pressure level below the low pressure input level. The sub low pressure evaporator is disposed in the flue gas stream path downstream of a low pressure economizer.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: February 9, 2021
    Assignee: General Electric Technology GmbH
    Inventors: Mariah Couzzicarneiro, Joerg Dietzmann
  • Patent number: 10916930
    Abstract: In the field of electrical power systems there is provided a method of supervising the operation of a plurality of current transformers that are arranged in respective current transformer within differing protection zones of a multi-phase electrical power system. The method of supervising comprises the steps of: (a) identifying a faulty protection zone within the electrical power system; (b) identifying a faulty current transformer group within the faulty protection zone; and (c) identifying faulty phase(s) within the faulty current transformer group within the faulty protection zone.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: February 9, 2021
    Assignee: General Electric Technology GmbH
    Inventors: Simon Richards, Joao Vieira De Jesus
  • Patent number: 10914200
    Abstract: A CCPP includes a gas turbine, a HRSG, a steam turbine a flash tank and first and second supply lines. The gas turbine, the HRSG and the steam turbine are interconnected to generate power. The gas turbine may include an air preheating system to preheat the air supplied in the gas turbine to enable expedite combustion therein. The flash tank is fluidically connected at a cold end of the HRSG to extract waste hot water from the cold end. Further, the first supply line is configured to interconnect the flash tank and the steam turbine to supply of flash steam to the steam turbine. Furthermore, the second supply line is configured to interconnect the flash tank and the air preheating system to supply hot flash condensate thereto.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: February 9, 2021
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Klara Berg, Mariah Couzzi-Carneiro, Paul Drouvot, Torbjörn Stenström