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公开(公告)号:US09438042B2
公开(公告)日:2016-09-06
申请号:US13769919
申请日:2013-02-19
Applicant: General Electric Company
Inventor: Di Zhang , Luis Jose Garces , Jian Dai , Rixin Lai
CPC classification number: H02J3/36 , H02J3/382 , H02J13/0003 , Y02E40/72 , Y02E60/60 , Y04S10/123
Abstract: A power transmission system includes a first unit for carrying out the steps of receiving high voltage direct current (HVDC) power from an HVDC power line, generating an alternating current (AC) component indicative of a status of the first unit, and adding the AC component to the HVDC power line. Further, the power transmission system includes a second unit for carrying out the steps of generating a direct current (DC) voltage to transfer the HVDC power on the HVDC power line, wherein the HVDC power line is coupled between the first unit and the second unit, detecting a presence or an absence of the added AC component in the HVDC power line, and determining the status of the first unit based on the added AC component.
Abstract translation: 电力传输系统包括:第一单元,用于执行从HVDC电力线接收高压直流(HVDC)功率的步骤,产生指示第一单元的状态的交流(AC)分量,以及将AC 组件到HVDC电源线。 此外,电力传输系统包括用于执行产生直流(DC)电压以在HVDC电力线上传输HVDC电力的步骤的第二单元,其中HVDC电力线耦合在第一单元和第二单元之间 检测所述HVDC电力线中所添加的AC分量的存在或不存在,以及基于所添加的AC分量来确定所述第一单元的状态。
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公开(公告)号:US20140233277A1
公开(公告)日:2014-08-21
申请号:US13769919
申请日:2013-02-19
Applicant: GENERAL ELECTRIC COMPANY
Inventor: Di Zhang , Luis Jose Garces , Jian Dai , Rixin Lai
IPC: H02J3/36
CPC classification number: H02J3/36 , H02J3/382 , H02J13/0003 , Y02E40/72 , Y02E60/60 , Y04S10/123
Abstract: A power transmission system includes a first unit for carrying out the steps of receiving high voltage direct current (HVDC) power from an HVDC power line, generating an alternating current (AC) component indicative of a status of the first unit, and adding the AC component to the HVDC power line. Further, the power transmission system includes a second unit for carrying out the steps of generating a direct current (DC) voltage to transfer the HVDC power on the HVDC power line, wherein the HVDC power line is coupled between the first unit and the second unit, detecting a presence or an absence of the added AC component in the HVDC power line, and determining the status of the first unit based on the added AC component.
Abstract translation: 电力传输系统包括:第一单元,用于执行从HVDC电力线接收高压直流(HVDC)功率的步骤,产生指示第一单元的状态的交流(AC)分量,以及将AC 组件到HVDC电源线。 此外,电力传输系统包括用于执行产生直流(DC)电压以在HVDC电力线上传输HVDC电力的步骤的第二单元,其中HVDC电力线耦合在第一单元和第二单元之间 检测所述HVDC电力线中所添加的AC分量的存在或不存在,以及基于所添加的AC分量来确定所述第一单元的状态。
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公开(公告)号:US09800132B2
公开(公告)日:2017-10-24
申请号:US14982975
申请日:2015-12-29
Applicant: General Electric Company
Inventor: Paul Michael Szczesny , Rajib Datta , Fengfeng Tao , Jian Dai , Xu She , Tannous Frangieh
IPC: H03K17/687 , H02M1/088
CPC classification number: H02M1/088
Abstract: A power conversion system may include a plurality of power devices and a sensor operably coupled to at least one of the plurality of power devices and configured to detect a voltage, current, or electromagnetic signature signal associated with the plurality of power devices. The power converter may also include circuitry operably coupled to the plurality of power devices and the sensor. The circuitry may send a respective gate signal to each respective power device of the plurality of power devices, such that each respective gate signal is delayed by a respective compensation delay that is determined for the respective power device based on a respective time delay of the respective power device and a maximum time delay of the plurality of power devices.
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公开(公告)号:US09792204B2
公开(公告)日:2017-10-17
申请号:US15013391
申请日:2016-02-02
Applicant: General Electric Company
Inventor: Meng Li , Michael Richard Durling , Jian Dai , Scott Alan Stacey
CPC classification number: G06F11/3684 , G06F11/3676
Abstract: A method for automated test case augmentation includes receiving, at an automated test augmentation system, a design model and model coverage gap information from a model-based development tool, translating the model coverage gap information into machine-readable mathematical test objective expressions, developing a set of test objective operators by translating the machine-readable mathematical test objective expressions, localizing target operators for the identified coverage gaps within the design model, attaching the test objective operators to target operators of the design model to create a test model, augmenting the test model by propagating test objectives at the target operators to a test node operator of the design model, and executing, by a test generator, the augmented test model to obtain the test cases to cover the coverage gaps and the causes for the model coverage gaps. A system for implementing the model-based design and a non-transitory computer readable medium are also disclosed.
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公开(公告)号:US20170187277A1
公开(公告)日:2017-06-29
申请号:US14982975
申请日:2015-12-29
Applicant: General Electric Company
Inventor: Paul Michael Szczesny , Rajib Datta , Fengfeng Tao , Jian Dai , Xu She , Tannous Frangieh
IPC: H02M1/088
CPC classification number: H02M1/088
Abstract: A power conversion system may include a plurality of power devices and a sensor operably coupled to at least one of the plurality of power devices and configured to detect a voltage, current, or electromagnetic signature signal associated with the plurality of power devices. The power converter may also include circuitry operably coupled to the plurality of power devices and the sensor. The circuitry may send a respective gate signal to each respective power device of the plurality of power devices, such that each respective gate signal is delayed by a respective compensation delay that is determined for the respective power device based on a respective time delay of the respective power device and a maximum time delay of the plurality of power devices.
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