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公开(公告)号:US10439507B2
公开(公告)日:2019-10-08
申请号:US14945450
申请日:2015-11-19
Applicant: GE Energy Power Conversion Technology Ltd
Abstract: A method, apparatus, and system to control a multi-phase converter having at least one power channel with a plurality of power modules, and involves detecting the voltage and the current of the power modules, calculating a command voltage based on a product of a programmed virtual resistance and the detected current, and transmitting a command voltage signal to the power modules based on the calculated command voltage.
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公开(公告)号:US20190148939A1
公开(公告)日:2019-05-16
申请号:US15810277
申请日:2017-11-13
Applicant: GE Energy Power Conversion Technology Ltd
Abstract: Provided is a power distribution system that includes a reconfigurable DC/DC power converter configured to be connected with an energy storage device at an input end for receiving an input voltage therefrom, and a power electronics building block having a primary bridge unit, a secondary bridge unit magnetically connected with the primary bridge unit, and an outer bridge unit at an output end and connected to an output of the secondary bridge unit, configured to output an output voltage.
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公开(公告)号:US20190140527A1
公开(公告)日:2019-05-09
申请号:US16184348
申请日:2018-11-08
Applicant: GE Energy Power Conversion Technology Ltd
Inventor: Benjamin Guy Salter , Martin Samuel Butcher
Abstract: The invention relates to a power system that includes an electrical machine, (e.g., a motor or generator). The electrical machine has a stator with a stator winding connected to a power converter. The power system includes an assembly to reduce, and optionally eliminate, common mode currents between the electrical machine and the power converter. The assembly includes a stator frame connected to ground potential and an electrical insulator (e.g., a plurality of stator mounts) located between the stator frame and the stator.
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公开(公告)号:US10243435B2
公开(公告)日:2019-03-26
申请号:US15007356
申请日:2016-01-27
Applicant: GE Energy Power Conversion Technology Ltd
Inventor: Antoine Billaud , Thibaut Mauffrey
Abstract: A rotor for a high-speed, high-power electric motor includes, according to the rotor axis, a magnetic mass surrounded on both sides by short-circuit rings, and crossed at several notches by electrical conductors connecting the short-circuit rings to form a squirrel cage. Each electrical conductor is formed of a single bar having a trapezoidal section over its entire length.
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95.
公开(公告)号:US10236733B2
公开(公告)日:2019-03-19
申请号:US15001733
申请日:2016-01-20
Applicant: GE Energy Power Conversion Technology Ltd
Inventor: Mathieu Bittermann , Graham Derek Le Flem
Abstract: A magnetic mass of an electric machine rotor extending along a longitudinal axis and comprising a plurality of housings, each housing being able to receive a respective electrically conductive bar. The magnetic mass further comprises, on at least one portion of its length along the longitudinal axis, at least one opening extending radially from one of the housings and opening outwards along a radial direction, substantially perpendicular to the longitudinal axis.
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96.
公开(公告)号:US20190058426A1
公开(公告)日:2019-02-21
申请号:US16104991
申请日:2018-08-20
Applicant: GE Energy Power Conversion Technology Ltd
Inventor: Kai Alexander Rothenhagen , Piotr Sadowski
CPC classification number: H02P9/305 , F03B13/06 , H02P9/007 , H02P9/102 , H02P23/08 , H02P29/68 , H02P2101/10 , H02P2103/10
Abstract: A system and method of operating a pumped storage power plant using a double fed induction machine with a frequency converter in a rotor circuit is disclosed. A current target value for the rotor current frequency is determined based on a target power to be transmitted between an electrical grid and the double fed induction machine depending on measured actual operating variables. A current inadmissible synchronous deadband is determined depending on variables characterizing a current state of the pumped storage power plant. The synchronous deadband is determined by a permissible minimum required rotor current frequency or speed difference of the rotor speed from the synchronous speed for the stationary operation. The converter is controlled to generate voltages and currents with the current target value of the rotor current frequency if the current target value of the rotor current frequency or speed does not fall in the current inadmissible synchronous deadband.
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97.
公开(公告)号:US10179636B2
公开(公告)日:2019-01-15
申请号:US15497037
申请日:2017-05-25
Applicant: GE Energy Power Conversion Technology Ltd
Inventor: Lionel Julliand , Loïc Vincent
Abstract: This propulsion unit for an aquatic vehicle consists of a mobile casing equipped with an azimuth bearing due to its mounting in a pivot connection in relation to a hull element of the aquatic vehicle, the azimuth bearing having a closed volume provided to contain a hydraulic fluid, the propulsion unit having a drive shaft of a propeller, said shaft being mounted rotatably within the mobile casing by means of at least one bearing having a closed space adapted to contain a hydraulic fluid, an electrical machine being adapted to drive the rotary drive shaft in relation to the mobile casing, the propulsion unit having a supply circuit adapted to supply the closed space of the shaft bearing with hydraulic fluid.The supply circuit has a supply duct connecting the closed space of the shaft bearing and the closed volume of the azimuth bearing.
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公开(公告)号:US20180351340A1
公开(公告)日:2018-12-06
申请号:US15779997
申请日:2016-11-28
Applicant: GE Energy Power Conversion Technology Ltd
Inventor: Thomas KOLBE , Martin BANSEMIR , Jan KAMM
IPC: H02G15/115 , H01R4/70 , H02G5/02 , H02G15/117 , H01R4/22 , H01R4/60
Abstract: The invention relates to a cover to enclose a longitudinal section of at least one electrical conductor and prevent the formation of an arc or a flashover. The cover has at least two cover parts made of an electrically insulating material. A first cover part and a second cover part each have at least one passage opening. Each passage opening has an electrical conductor guided through it, so that no gap opening, or only a small gap opening remains between the outside surface of the conductor and a bordering wall of the passage opening. Moreover, the cover has at least one connection location. At this connection location, two of the cover parts that are present lie against one another in a force-fit and/or positive-fit manner and form a nondestructively detachable connection. This ensures accessibility to the protected longitudinal section.
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公开(公告)号:US20180246162A1
公开(公告)日:2018-08-30
申请号:US15903524
申请日:2018-02-23
Applicant: GE Energy Power Conversion Technology Ltd
Inventor: Régis PERON , Abderrahmane HAJI
IPC: G01R31/28
CPC classification number: G01R31/2851 , G01R31/343 , G01R31/42 , H02P9/02
Abstract: A device for testing a power module comprising a multichannel power converter and a synchronous multiphase and multichannel electrical machine intended to be supplied by the converter, whereby the synchronous multiphase and multichannel electrical machine has phases connected to one another by groups of three phases. The power converter comprises as many voltage inverters as there are groups of three phases connected to said converter, whereby each inverter is connected to a group of three phases.
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公开(公告)号:US09954393B2
公开(公告)日:2018-04-24
申请号:US15136580
申请日:2016-04-22
Applicant: GE Energy Power Conversion Technology Ltd
Inventor: Teng Long , Stephen Wood , Ushindibaba Mupambireyi
IPC: H02J9/00 , H01F1/00 , H01F3/00 , H02J1/16 , H02J3/30 , H02J9/06 , H02J3/38 , B63J3/02 , H02M7/68
Abstract: A power distribution system is described. The system includes a main ac busbar and an emergency ac busbar. A hybrid drive system includes an induction electrical machine and a prime mover, the rotor of the electrical machine and the driving end of the prime mover being mechanically coupled to a load by means of a mechanical linkage such as a gearbox. The system includes a first active rectifier/inverter having ac input terminals electrically connected to the main ac busbar, and dc output terminals. The system includes a second active rectifier/inverter having dc input terminals electrically connected to the dc output of the first active rectifier/inverter by a dc link, and ac output terminals electrically connected to the induction electrical machine. A blackout restart system includes a rectifier having ac input terminals selectively electrically connectable to the emergency ac busbar and dc output terminals selectively electrically connectable to the dc link.
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