公开(公告)号：US20150263508A1

公开(公告)日：2015-09-17

申请号：US14423443

申请日：2012-08-30

申请人： Huibin Zhu ,  Allen Michael Ritter ,  Einar Vaughn Larsen ,  Anthony Michael Klodowski ,  Sidney Allen Barker ,  Xueqin Wu ,  Shouzhong Chang

发明人： Huibin Zhu ,  Allen Michael Ritter ,  Einar Vaughn Larsen ,  Anthony Michael Klodowski ,  Sidney Allen Barker ,  Xueqin Wu ,  Shouzhong Chang

IPC分类号： H02H7/06 ,  G01R21/00 ,  F03D11/00 ,  G01R19/165 ,  F03D9/00 ,  H02J3/38 ,  G01R25/00

CPC分类号： H02H7/06 ,  F03D9/255 ,  F03D17/00 ,  G01R19/165 ,  G01R21/00 ,  G01R25/00 ,  H02J3/38 ,  H02J3/386 ,  H02J2003/388 ,  Y02E10/763

摘要： In one aspect, a method for protecting one or more electrical machines during an islanding event is provided. The method includes connecting one or more electrical machines to an alternating current (AC) electric power system, wherein the AC electric power system is configured to transmit at least one phase of electrical power to the one or more electrical machines or to receive at least on phase of electrical power from the one or more electrical machines; electrically coupling at least a portion of a control system to at least a portion of the AC electric power system; coupling at least a portion of the control system in electronic data communication with at least a portion of the one or more electrical machines; and detecting an islanding of the one or more electrical machines based on one or more conditions monitored by the control system.

摘要翻译： 一方面，提供了在孤岛事件期间保护一个或多个电机的方法。 该方法包括将一个或多个电机连接到交流（AC）电力系统，其中交流电力系统被配置为将至少一个电力相位发射到一个或多个电机或者至少接收 来自一个或多个电机的电力相位; 将控制系统的至少一部分电耦合到AC电力系统的至少一部分; 将所述控制系统的至少一部分与电子数据通信耦合到所述一个或多个电机的至少一部分; 以及基于由所述控制系统监视的一个或多个条件来检测所述一个或多个电机的孤岛。

公开(公告)号：US11368023B2

公开(公告)日：2022-06-21

申请号：US16982849

申请日：2018-03-22

申请人： General Electric Company ,  Igor Berroteran ,  Shouzhong Chang

发明人： Igor Berroteran ,  Shouzhong Chang

IPC分类号： H02J3/38 ,  F03D9/00

摘要： A method for operating a PV system that is integrated into a power system connected to a power grid includes determining a voltage operating point for the PV system based on a maximum power point tracking (MPPT) algorithm. If an available power output of the PV system can be provided to the power grid, the method includes operating the PV system based on the voltage operating point. If the maximum available power output of the PV system cannot be provided to the power grid, the method includes applying a voltage step to the voltage operating point to drive a power output of the PV system towards an external power constraint.

公开(公告)号：US20210057915A1

公开(公告)日：2021-02-25

申请号：US16982849

申请日：2018-03-22

申请人： Igor BERROTERAN ,  Shouzhong CHANG ,  General Electric Company

发明人： Igor Berroteran ,  Shouzhong Chang

IPC分类号： H02J3/38 ,  F03D9/00

摘要： A method for operating a PV system that is integrated into a power system connected to a power grid includes determining a voltage operating point for the PV system based on a maximum power point tracking (MPPT) algorithm. If an available power output of the PV system can be provided to the power grid, the method includes operating the PV system based on the voltage operating point. If the maximum available power output of the PV system cannot be provided to the power grid, the method includes applying a voltage step to the voltage operating point to drive a power output of the PV system towards an external power constraint.