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

IPC: H03K17/14 ,  H03K17/10

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).

公开(公告)号：US20180241200A1

公开(公告)日：2018-08-23

申请号：US15754783

申请日：2016-08-22

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Lihua HU ,  Teng LONG ,  Martin Samuel BUTCHER ,  Allan David CRANE

IPC: H02H7/26 ,  H02H1/00 ,  G01R31/02 ,  G01R31/08

CPC classification number: H02H7/26 ,  G01R19/2513 ,  G01R23/16 ,  G01R31/025 ,  G01R31/086 ,  H02H1/0007 ,  H02H3/162

Abstract: A power distribution system includes power converter systems electrically connected to a distribution bus which defines a point of common coupling. Each power converter system includes a power converter with semiconductor switching devices controlled using a pulse width modulation strategy with a switching frequency. A controller for each power converter system applies a spectrum analysis process to the respective power converter system that uses measured or derived zero sequence currents associated with the respective power converter system to determine the location of a ground fault within the power distribution system. Each controller applies a switching frequency process where the switching frequency of the power converter of at least one of the power converter systems is different from the switching frequency of the power converter of at least another one of the power converter systems during at least part of the time that the spectrum analysis process is applied.

公开(公告)号：US20180219454A1

公开(公告)日：2018-08-02

申请号：US15420902

申请日：2017-01-31

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Vishwanath HANGARI

IPC: H02K9/06 ,  H02K5/20

CPC classification number: H02K9/06 ,  H02K5/18 ,  H02K5/20 ,  H02K9/04

Abstract: Provided is a cooling apparatus for an electric machine that is integrally combined with the cover of the electric machine and includes a body portion around the circumference of an external surface of the cover that has a first part which is formed at a first angle in a direction away from the cover, and a second part which is formed in a second angle in a downward direction which is opposite the direction of the first part, wherein the first part and the second part form an opening therebetween. The body portion is formed above a plurality of fins attached to a frame of the electric machine, wherein the fresh air is introduced into the fins and mixes with air from an air inlet end and exits through an air outlet end at the opposite end of each fin of the plurality of fins.

公开(公告)号：US20180216440A1

公开(公告)日：2018-08-02

申请号：US15419026

申请日：2017-01-30

Applicant: GE Energy Power Conversion Technology Ltd.

Inventor： Stuart Gray ,  David Johnson ,  David Huezo ,  Krishna Uppuluri

IPC: E21B41/00

Abstract: There is provided a system for analyzing and controlling a productivity of a drilling apparatus. The exemplary system includes a processor and a memory including instructions that cause the processor to perform certain operations. The operations can include receiving information from a control system of the drilling apparatus and determining a key performance metric based on the information. The operations can further include performing a comparison between the key performance metric and at least one other key performance metric. Furthermore, the operations can further include instructing, based on the comparison, the control system to alter the productivity of the drilling apparatus.

公开(公告)号：US20180205297A1

公开(公告)日：2018-07-19

申请号：US15405806

申请日：2017-01-13

Applicant: GE Energy Power Conversion Technology Ltd.

Inventor： Thiago Arouca TOLEDO ,  Robert Duarte BARBOSA ,  Waldemar Joaquim PEREIRA

IPC: H02K11/30 ,  H02K5/22 ,  H02K17/42 ,  H02K7/18 ,  F03D9/25

CPC classification number: H02K11/30 ,  F03D9/25 ,  H02K3/51 ,  H02K5/225 ,  H02K7/1838 ,  H02K15/0006 ,  H02K17/24 ,  H02K17/42 ,  H02K2213/06 ,  Y02E10/725

Abstract: Provided is an auxiliary wye ring configured for supplemental attachment to a deployed generator. The generator includes a rotor and windings extending circumferentially around the rotor. The auxiliary wye ring includes connection points for coupling to an original wye ring attached to the deployed generator prior to deployment.

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

IPC: H02J3/00 ,  H02J1/00 ,  H02J4/00 ,  H02M7/04 ,  H02M7/44 ,  B63H23/24 ,  H02J1/10 ,  H02J3/38

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.

公开(公告)号：US10020650B2

公开(公告)日：2018-07-10

申请号：US14628764

申请日：2015-02-23

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Robert Roesner ,  Christoph Rytz

IPC: H02H3/38 ,  H02H1/00 ,  H02H3/087 ,  H02H3/093 ,  H02H7/18 ,  H02J7/00 ,  H01M10/42 ,  H01M10/48 ,  H02J1/10

CPC classification number: H02H3/38 ,  H01M10/425 ,  H01M10/48 ,  H01M2010/4271 ,  H01M2220/10 ,  H01M2220/20 ,  H02H1/0015 ,  H02H3/087 ,  H02H3/093 ,  H02H7/18 ,  H02J1/108 ,  H02J7/0026 ,  H02J7/0029 ,  H02J7/0083 ,  H02J2007/0039

Abstract: A battery energy storage system is disclosed, the battery energy storage system comprising a rechargeable battery assembly for storing and providing energy and a protection system including an arc flash protection device to protect against risks due to arc flashes. The arc flash protection device comprises an overcurrent protection unit which detects overcurrent conditions indicating arc flash conditions in case of a low impedance of the battery assembly and an undervoltage protection unit which detects undervoltage conditions indicating arc flash conditions in case of a low impedance of the battery assembly, wherein upon detecting the overcurrent conditions and/or the undervoltage conditions for a predetermined minimum time period, the arc flash protection device initiates protective measures to prevent further operation of the battery assembly. An energy conversion system comprising such a battery energy storage system, which can be used for stationary and mobile energy supply or distribution applications, is also disclosed.

公开(公告)号：US20180131264A1

公开(公告)日：2018-05-10

申请号：US15805645

申请日：2017-11-07

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Benoit GEORGE

IPC: H02M1/12 ,  H02M7/04 ,  H02M7/44

Abstract: A method for controlling at least two three-phase power converters with asynchronous pulse-width modulation. The method further comprises the following steps: for each phase of each converter, the characteristics of the signals used to generate the modulating signal and carrier signal of each control signal of each phase of each converter are determined, for each converter, a phase shift is inserted between the carrier signals used to generate the phase control signals of the converter, for each phase, a phase shift is inserted between the carrier signals used to generate the control signals of the converters, for each phase of each converter, a pulse-width modulation control signal by intersection is determined resulting from the intersection of a modulating signal and a carrier signal, and the control signals are transmitted to the converters.

公开(公告)号：US20180041050A1

公开(公告)日：2018-02-08

申请号：US15229323

申请日：2016-08-05

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Robert Gregory WAGONER

IPC: H02J7/00

CPC classification number: H02J7/0016 ,  H02J3/32 ,  H02J7/0013 ,  H02J7/0021

Abstract: There are provided control systems and methods for charging batteries. For instance, there is provided a system for charging at least two batteries. The system can include a set of hardware associated with the at least two batteries, and the at least two batteries can be connected in series. Each battery from the at least two batteries can be associated with a subset of the set of hardware, and one subset of the set of hardware can be configured to control an associated battery independently from another subset of the set of hardware and its associated battery.

公开(公告)号：US20180025963A1

公开(公告)日：2018-01-25

申请号：US15214284

申请日：2016-07-19

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Zane Taylor Miller

IPC: H01L23/467 ,  H01L23/00 ,  H01L25/00 ,  H01L23/367 ,  H01L25/07

CPC classification number: H01L23/467 ,  H01L23/3672 ,  H01L23/3675 ,  H01L23/3736 ,  H01L24/32 ,  H01L25/072 ,  H01L25/50 ,  H01L2224/32245 ,  H01L2924/01013 ,  H01L2924/01029 ,  H01L2924/10272 ,  H01L2924/1033 ,  H01L2924/13055 ,  H01L2924/13091

Abstract: There are provided methods, systems, and electronic assemblies for efficient thermal management in electronics applications. For example, there is provided an electronic assembly that includes a thermal management system that can include a heat sink having electronic components mounted thereon. The electronic components can be mounted on the heat sink in a staggered pattern along a centerline substantially perpendicular to a direction of flow of a coolant.