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。

公开(公告)号：US20130307340A1

公开(公告)日：2013-11-21

申请号：US13787733

申请日：2013-03-06

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Palanivel Subramanium ,  Raghothama Reddy ,  Darwin Smith

IPC: H02J5/00 ,  H02J3/38

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 method of operating the same for use in a power conversion system capable of receiving power from various sources, including renewable sources, for application 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. 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. Operating modes are also switched in response to low load demand.

Abstract translation: 一种电力转换器及其操作方法，用于能够从各种来源（包括可再生能源）接收能量以供应用于负载的电力转换系统。 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工作，并且DC-DC转换器级以开环方式工作。 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。 响应于低负载需求也可以切换操作模式。

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。