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21.发明授权公开(公告)号：US10651719B2
公开(公告)日：2020-05-12
申请号：US16229733
申请日：2018-12-21
Inventor： Hendrik Gloes , Martin Geske , Piotr Szczupak
Abstract: A method and a device for controlling a commutation process of a load current between two switching modules are disclosed that each have a MOSFET that can be controlled by a gate-source voltage, and an intrinsic-body inverse diode. To reduce oscillations in the down-commutation of the inverse diodes caused by parasitic circuit parameters, after switching off one of the switching modules, the gate-source control voltage applied to this switching module is temporarily switched off until being increased again the vicinity of the threshold voltage for switching on the MOSFET, before and while the other switching module is switched on, in order to commutate the current from the inverse diode of the one switching module to the MOSFET of the other switching module.
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公开(公告)号：US10608425B2
公开(公告)日：2020-03-31
申请号：US16007741
申请日：2018-06-13
Abstract: Provided is a method for performing AC optimal yield control within an inverter that includes a plurality of DC power sources configured to supply DC power, a plurality of converters to convert direct current power to alternating current power to be supplied to a load, a plurality of short-circuit protection devices connected to a DC interconnection bus at the DC power sources, and configured to provide short-circuit protection, a plurality of current sensors configured to sense circulation current at the short-circuit protection devices, and a controller. The controller controls the converters and monitors the circulation current sensed along the DC interconnection bus via the current sensors, and when power reduction occurs at one of the DC power sources, performs a closed-loop control current operation to controllably increase the circulation current along the DC interconnection bus to be greater than an impairment lower limit of the short-circuit protection devices.
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公开(公告)号：US10530152B2
公开(公告)日：2020-01-07
申请号：US15741771
申请日：2016-07-08
Inventor： Teng Long , Ushindibaba Mupambireyi
IPC: H02H9/08 , H02M1/32 , H02J3/00 , H02M5/458 , B60L3/00 , H02H7/122 , H02H7/125 , H02M7/5387 , H02P27/08
Abstract: A power distribution system has a power converter with a plurality of semiconductor switching devices per phase, a PWM controller, and a current limitation controller. The current limitation controller is adapted, at least when a short-circuit fault is detected, to calculate the difference between a measured current for each phase and a reference current for the corresponding phase. If the calculated difference is located outside a predetermined current range centered about the reference current for the corresponding phase, the current limitation controller will allow the semiconductor switching devices of the corresponding phase to be turned on and off by the PWM controller. Otherwise, if the calculated difference is located inside the predetermined current range, the current limitation controller will control the semiconductor switching devices for the corresponding phase to be turned off irrespective of the PWM control strategy applied by the PWM controller.
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24.发明申请公开(公告)号：US20190386544A1
公开(公告)日：2019-12-19
申请号：US16428919
申请日：2019-05-31
Inventor： Yannick Viry , Fabrice Herbin , Benedict Schnabel , Frederic Violin , Adrien Huillet
Abstract: The shaft for a rotating electrical machine comprises at least one housing element (8a, 8b, 8c) extending in an axial direction (A) and emerging outwards in a radial direction, with one side of the housing element emerging outwards in an axial direction, and with the housing being able to accommodate at least one insulated electrical conductor (6) and a spacer (9a, 9b, 9c).
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公开(公告)号：US10483746B2
公开(公告)日：2019-11-19
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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Patent Agency Ranking
公开(公告)号：US10333388B2
公开(公告)日：2019-06-25
申请号：US15762850
申请日：2016-09-30
Applicant: GE Energy Power Conversion Tech Ltd.
Inventor： Helmut Jebenstreit , Frank Wothe , Kai Niemann
IPC: H02M1/32 , H02M7/483 , H02M1/088 , H02M7/219 , H02M7/5387
Abstract: A control device and method for large power converters having a high number of power cells may contain power semiconductor switching elements, receive commands from a central control unit, and send information to the central control unit. The control device comprises multiplexer/demultiplexer device(s), which comprises an uplink port for connection to the central control unit, a plurality of downlink ports for direct connection to a communications interface of an associated power cell, and a communications control and management module. The communications control and management module may extract information from a transmit frame received from the central control unit via the uplink port, may feed this information to the corresponding downlink port for the relevant power cell , may insert response information received from particular power cells into a receive frame, and may send this via the uplink port to the central control unit.
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公开(公告)号：US10250160B2
公开(公告)日：2019-04-02
申请号：US15789482
申请日：2017-10-20
Applicant: GE Energy Power Conversion Technology Ltd
Inventor： Kamran Jalili
Abstract: An inverter and method of controlling an inverter, which is connected between a photovoltaic generator and a power supply network for ride-through of a network fault, is disclosed. A voltage dip is detected in the network voltage and the voltage of a DC voltage link of the inverter is monitored. When the DC link voltage exceeds an upper limit value, an operating mode for ride-through of the network fault is started. The upper limit value corresponds to a saturation voltage in the specific Iac/Udc characteristic curve of the inverter, above which the maximum AC output current of the inverter decreases. In the FRT operating mode, an energy dissipation device dissipates power from the DC voltage link and is controlled to keep the DC link voltage within a range below the saturation voltage.
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公开(公告)号：US10233892B2
公开(公告)日：2019-03-19
申请号：US14374673
申请日：2013-01-24
Applicant: GE Energy Power Conversion Technology Ltd
Inventor： Hugo Duchene , Philippe Cagnin , Antoine Girard-Pecarrere
Abstract: This hydrokinetic rotor is arranged to be rotated by a flow of a liquid. This rotor comprises of an inner ring, an outer ring and at least one blade extending between the inner ring and the outer ring in a radial direction (R), the inner rings and the external rings being centered on a same longitudinal axis (X).This rotor comprises of at least one radial axis extending radially between the inner ring and the outer ring, and at least one blade is movable around the respective radial axis. The rotor comprises of the limitation means of the movement in rotation of at least one blade mentioned above around its respective radial axis.
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公开(公告)号：US10135433B2
公开(公告)日：2018-11-20
申请号：US13834301
申请日：2013-03-15
Applicant: GE ENERGY POWER CONVERSION TECHNOLOGY LTD.
Inventor： Stephane Richard , Herve Cara , Jean-Marc Nicolai
Abstract: The system (21) includes: a power transistor (22), a data medium (60) including data relating to the manufacturing tolerance (Tol) of at least one electric parameter of the transistor (22), an electric circuit (26) for controlling the transistor adapted so as to operate for a reference value of the parameter (VREF), an electric circuit (64) having an inductance of less than 100 nH and such that the assembly (70) formed with the circuit (64) and the transistor (22) has a value for the parameter, for which the deviation in absolute with the reference value is strictly less than the manufacturing tolerance (Tol).
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公开(公告)号：US10020652B2
公开(公告)日：2018-07-10
申请号：US14683768
申请日：2015-04-10
Applicant: GE Energy Power Conversion Technology Ltd
Inventor： Eric Lewis, III
CPC classification number: H02J1/00 , B63H23/24 , H02J1/108 , H02J3/381 , H02J4/00 , H02M7/04 , H02M7/44
Abstract: A power distribution system including first and second ac busbars connected to ac generators. A first active rectifier/inverter has ac input terminals electrically connected to the first ac busbar. A second active rectifier/inverter has ac input terminals electrically connected to the second ac busbar. A first dc interface is electrically connected to dc output terminals of the first active rectifier/inverter and a second dc interface is electrically connected to dc output terminals of the second active rectifier/inverter. The dc interfaces include reverse blocking means. A third active rectifier/inverter operates as a drive and has dc input terminals electrically connected in the parallel to dc output terminals of the first and second dc interfaces by means of an interposing dc busbar. An electric motor, that can optionally form part of a marine thruster T1, is electrically connected to ac output terminals of the third active rectifier/inverter.
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