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    Optimized control of a power converter in response to load conditions
    1.
    发明授权
    Optimized control of a power converter in response to load conditions 有权
    根据负载条件优化电力转换器的控制

    公开(公告)号：US09373964B2

    公开(公告)日：2016-06-21

    申请号：US13785154

    申请日：2013-03-05

    Applicant: General Electric Company

    Inventor： Palanivel Subramaniam ,  Raghothama Reddy ,  Darwin Smith

    IPC: H02J3/38 ,  H02J5/00 ,  H02J7/34 ,  H02M3/04 ,  H02M3/24 ,  H02M7/12 ,  H02M1/42

    CPC classification number: H02M1/4225 ,  H02J3/38 ,  H02J3/382 ,  H02J7/34 ,  H02M1/4258 ,  H02M3/04 ,  H02M3/24 ,  H02M7/125 ,  Y02B10/14 ,  Y02B70/126 ,  Y10T307/625 ,  Y10T307/658

    Abstract: A power converter and a method of operating the same is described, for use in a power conversion system that is capable of receiving power from various sources, including renewable sources, for delivering power to a load. Power type detection circuitry is provided for identifying the type of power source at the input of each power detector, based on attributes of the time-varying power received. The power converter is constructed of a boost stage followed by a galvanically isolated DC-DC converter stage. If a renewable input power source is detected, the boost stage is controlled to operate at a maximum power point, and the DC-DC converter stage is operated in an open loop manner when load exceeds available power at input. The load falls below available input power, the boost stage is controlled to regulate its output voltage and DC-DC converter stage is also placed under closed loop control. If the AC grid is detected as the input power source, the boost stage is controlled to attain maximum power factor, and the DC-DC converter stage is placed under feedback control of the output voltage.

    Abstract translation: 描述了功率转换器及其操作方法，用于能够从包括可再生源的各种源的电力接收功率的功率转换系统中，用于将功率传递给负载。 提供功率型检测电路，用于基于接收到的时变功率的属性来识别每个功率检测器输入端的电源类型。 功率转换器由升压级，之后是电隔离的DC-DC转换器级构成。 如果检测到可再生输入电源，则升压级被控制为在最大功率点运行，并且当负载超过输入端的可用功率时，DC-DC转换器级以开环方式工作。 负载下降到可用输入功率以下，升压级被控制以调节其输出电压，DC-DC转换器级也被置于闭环控制下。 如果交流电网被检测为输入电源，则升压级被控制以获得最大功率因数，并且将DC-DC转换器级置于输出电压的反馈控制下。

    OPTIMIZED CONTROL OF A POWER CONVERTER IN RESPONSE TO LOAD CONDITIONS
    2.
    发明申请
    OPTIMIZED CONTROL OF A POWER CONVERTER IN RESPONSE TO LOAD CONDITIONS 有权
    电力转换器在负载条件下的优化控制

    公开(公告)号：US20130307339A1

    公开(公告)日：2013-11-21

    申请号：US13785154

    申请日：2013-03-05

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Palanivel Subramanium ,  Raghothama Reddy ,  Darwin Smith

    IPC: H02J5/00 ,  H02J7/34 ,  H02J3/38 ,  H02M3/04 ,  H02M3/24

    CPC classification number: H02M1/4225 ,  H02J3/38 ,  H02J3/382 ,  H02J7/34 ,  H02M1/4258 ,  H02M3/04 ,  H02M3/24 ,  H02M7/125 ,  Y02B10/14 ,  Y02B70/126 ,  Y10T307/625 ,  Y10T307/658

    Abstract: A power converter and a method of operating the same is described, for use in a power conversion system that is capable of receiving power from various sources, including renewable sources, for delivering power to a load. Power type detection circuitry is provided for identifying the type of power source at the input of each power detector, based on attributes of the time-varying power received. The power converter is constructed of a boost stage followed by a galvanically isolated DC-DC converter stage. If a renewable input power source is detected, the boost stage is controlled to operate at a maximum power point, and the DC-DC converter stage is operated in an open loop manner when load exceeds available power at input. The load falls below available input power, the boost stage is controlled to regulate its output voltage and DC-DC converter stage is also placed under closed loop control. If the AC grid is detected as the input power source, the boost stage is controlled to attain maximum power factor, and the DC-DC converter stage is placed under feedback control of the output voltage.

    Abstract translation: 描述了功率转换器及其操作方法，用于能够从包括可再生源的各种源的电力接收功率的功率转换系统中，用于将功率传递给负载。 提供功率型检测电路，用于基于接收到的时变功率的属性来识别每个功率检测器输入端的电源类型。 功率转换器由升压级，之后是电隔离的DC-DC转换器级构成。 如果检测到可再生输入电源，则升压级被控制为在最大功率点运行，并且当负载超过输入端的可用功率时，DC-DC转换器级以开环方式工作。 负载下降到可用输入功率以下，升压级被控制以调节其输出电压，DC-DC转换器级也被置于闭环控制下。 如果交流电网被检测为输入电源，则升压级被控制以获得最大功率因数，并且将DC-DC转换器级置于输出电压的反馈控制下。

    Improving load transient response by adjusting reference current in isolated power converters
    5.
    发明授权
    Improving load transient response by adjusting reference current in isolated power converters 有权
    通过调节隔离电源转换器中的参考电流来改善负载瞬态响应

    公开(公告)号：US09374001B1

    公开(公告)日：2016-06-21

    申请号：US14612956

    申请日：2015-02-03

    Applicant: General Electric Company

    Inventor： Palanivel Subramaniam ,  Raghothama Reddy

    IPC: H02M1/42 ,  H02M3/04

    CPC classification number: H02M3/04 ,  H02M1/42 ,  H02M1/4225 ,  H02M3/156 ,  H02M2001/0025 ,  H02M2001/007 ,  Y02B70/126

    Abstract: Methods and systems for improving load transient response in power conversion systems are provided herein. The system includes a primary stage and a secondary stage, an isolation barrier electrically isolating the primary stage and the secondary stage, and a primary stage controller positioned in the primary stage. The primary stage controller is configured to adjust a step-up converter reference voltage based on a load current signal indicative of a load transient. The load current signal is transmitted from the secondary stage.

    Abstract translation: 在这里提供了用于改善电力转换系统中的负载瞬态响应的方法和系统。 该系统包括初级级和次级级，将初级级和次级级电隔离的隔离屏障和位于初级级的初级级控制器。 初级级控制器被配置为基于表示负载瞬变的负载电流信号来调节升压转换器参考电压。 负载电流信号从次级发送。

    Input relay architecture for rectifying power converters and suitable for AC or DC source power
    6.
    发明授权
    Input relay architecture for rectifying power converters and suitable for AC or DC source power 有权
    用于整流电源转换器的输入继电器架构，适用于交流或直流电源

    公开(公告)号：US09350175B2

    公开(公告)日：2016-05-24

    申请号：US13785334

    申请日：2013-03-05

    Applicant: General Electric Company

    Inventor： Palanivel Subramaniam ,  Raghothama Reddy ,  Gary Lin

    IPC: H02H7/125 ,  H02J5/00 ,  H02J3/38 ,  H02J7/34 ,  H02M3/04 ,  H02M3/24 ,  H02M7/12 ,  H02M1/42

    CPC classification number: H02M1/4225 ,  H02J3/38 ,  H02J3/382 ,  H02J7/34 ,  H02M1/4258 ,  H02M3/04 ,  H02M3/24 ,  H02M7/125 ,  Y02B10/14 ,  Y02B70/126 ,  Y10T307/625 ,  Y10T307/658

    Abstract: Power converter circuitry for converting power from a power source of any one of a number of power source types, and in which arcing at relays in the event of a shutdown is avoided. A shunt circuit is provided in inrush and protection circuitry of the power converter, the circuit including a power field-effect transistor and optionally a series-connected relay. The shunt circuit is controlled to divert current from the main relay in the event of a rectifier fault, allowing the main relay to be opened under reduced or zero current. The field-effect transistor of the shunt circuit can then be safely opened, allowing its series relay to be opened under zero current conditions.

    Abstract translation: 用于从多个电源类型中的任何一个的电源转换功率的电力转换器电路，并且避免在发生停机的情况下在继电器处的电弧。 在功率转换器的涌入和保护电路中提供分流电路，该电路包括功率场效应晶体管和可选的串联继电器。 在整流器故障的情况下，分流电路被控制为从主继电器转移电流，允许主继电器在减小或零电流下打开。 分流电路的场效应晶体管然后可以安全地打开，允许其串联继电器在零电流条件下打开。

    INPUT RELAY ARCHITECTURE FOR RECTIFYING POWER CONVERTERS AND SUITABLE FOR AC OR DC SOURCE POWER
    7.
    发明申请
    INPUT RELAY ARCHITECTURE FOR RECTIFYING POWER CONVERTERS AND SUITABLE FOR AC OR DC SOURCE POWER 有权
    用于修复电源转换器的输入继电器架构，适用于交流或直流电源

    公开(公告)号：US20130308356A1

    公开(公告)日：2013-11-21

    申请号：US13785334

    申请日：2013-03-05

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Palanivel Subramanium ,  Raghothama Reddy ,  Gary Lin

    IPC: H02M7/12

    CPC classification number: H02M1/4225 ,  H02J3/38 ,  H02J3/382 ,  H02J7/34 ,  H02M1/4258 ,  H02M3/04 ,  H02M3/24 ,  H02M7/125 ,  Y02B10/14 ,  Y02B70/126 ,  Y10T307/625 ,  Y10T307/658

    Abstract: Power converter circuitry for converting power from a power source of any one of a number of power source types, and in which arcing at relays in the event of a shutdown is avoided. A shunt circuit is provided in inrush and protection circuitry of the power converter, the circuit including a power field-effect transistor and optionally a series-connected relay. The shunt circuit is controlled to divert current from the main relay in the event of a rectifier fault, allowing the main relay to be opened under reduced or zero current. The field-effect transistor of the shunt circuit can then be safely opened, allowing its series relay to be opened under zero current conditions.

    Abstract translation: 用于从多个电源类型中的任何一个的电源转换功率的电力转换器电路，并且避免在发生停机的情况下在继电器处的电弧。 在功率转换器的涌入和保护电路中提供分流电路，该电路包括功率场效应晶体管和可选的串联继电器。 在整流器故障的情况下，分流电路被控制为从主继电器转移电流，允许主继电器在减小或零电流下打开。 分流电路的场效应晶体管然后可以安全地打开，允许其串联继电器在零电流条件下打开。

    Interleaved LLC converters and current sharing method thereof
    9.
    发明授权
    Interleaved LLC converters and current sharing method thereof 有权
    交错式LLC转换器及其电流共享方法

    公开(公告)号：US09520790B2

    公开(公告)日：2016-12-13

    申请号：US14206743

    申请日：2014-03-12

    Applicant: General Electric Company

    Inventor： Raghothama Reddy

    IPC: H02M3/335 ,  H02M3/28 ,  H02M1/00 ,  H02M3/158

    CPC classification number: H02M3/285 ,  H02M3/335 ,  H02M2001/0058 ,  H02M2003/1586 ,  Y02B70/1425 ,  Y02B70/1491

    Abstract: Methods and systems for current sharing using interleaved LLC power converters are described herein. The method provides for current sharing between a first LLC power converter interleaved with a second LLC power converter. The method includes determining an expected output voltage for at least one of the first and second LLC power converters and measuring an output voltage of at least one of the first and second LLC power converters. The method also includes increasing a dead-time of at least one of the first and second LLC power converters when the measured output voltage exceeds the expected output voltage. Finally, the method includes interleaving the first and second LLC power converters, wherein an output current of the first LLC power converter is substantially equal to an output current of the second LLC power converter.

    Abstract translation: 本文描述了使用交错LLC功率转换器进行电流共享的方法和系统。 该方法提供了与第二LLC功率转换器交错的第一LLC功率转换器之间的电流共享。 该方法包括确定第一和第二LLC功率转换器中的至少一个的预期输出电压并测量第一和第二LLC功率转换器中的至少一个的输出电压。 该方法还包括当测量的输出电压超过预期输出电压时，增加第一和第二LLC功率转换器中的至少一个的死区时间。 最后，该方法包括交织第一和第二LLC功率转换器，其中第一LLC功率转换器的输出电流基本上等于第二LLC功率转换器的输出电流。

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