公开(公告)号：WO2014194464A1

公开(公告)日：2014-12-11

申请号：PCT/CN2013/076688

申请日：2013-06-04

申请人： GENERAL ELECTRIC COMPANY ,  ZHU, Huibin ,  WU, Xueqin ,  CHANG, Shouzhong ,  DING, Jie

发明人： ZHU, Huibin ,  WU, Xueqin ,  CHANG, Shouzhong ,  DING, Jie

IPC分类号： F03D9/00 ,  H02J3/38 ,  H02P9/00

CPC分类号： H02H7/067 ,  F03D1/0675 ,  F03D7/0224 ,  F03D7/0244 ,  F03D7/0272 ,  F03D7/0284 ,  F03D7/042 ,  F03D9/255 ,  F03D9/257 ,  F05B2260/903 ,  H02J3/386 ,  H02P9/007 ,  H02P9/10 ,  Y02E10/721 ,  Y02E10/723 ,  Y02E10/725 ,  Y02E10/763

摘要： Methods for operating a wind turbine system are provided. In one embodiment, a method includes adjusting a threshold direct current (DC) bus voltage for a dynamic brake in a wind turbine power converter above a reference DC bus voltage based on at least one system condition. The method further includes gating the dynamic brake on when an experienced DC bus voltage is equal to or greater than the threshold DC bus voltage, and inputting a dynamic brake condition into a controller when the dynamic brake is gated on. The method further includes determining if a grid fault has occurred, reducing power generation of the wind turbine if no grid fault has occurred, and blocking the power converter if a grid fault has occurred. The method further includes gating the dynamic brake off when the experienced DC bus voltage is less than the threshold DC bus voltage.

摘要翻译： 提供了用于操作风力涡轮机系统的方法。 在一个实施例中，一种方法包括基于至少一个系统状况，将风力涡轮机功率转换器中的动态制动器的阈值直流（DC）母线电压调整到基准直流母线电压以上。 该方法还包括当有经验的直流母线电压等于或大于阈值直流母线电压时门控动态制动，以及当动态制动器选通时将动态制动条件输入到控制器中。 该方法还包括确定是否发生电网故障，如果没有发生电网故障，则减少风力涡轮机的发电，并且如果发生电网故障则阻塞电力转换器。 该方法还包括当有经验的直流母线电压小于阈值直流母线电压时选通动态制动器。

公开(公告)号：WO2019178795A1

公开(公告)日：2019-09-26

申请号：PCT/CN2018/079933

申请日：2018-03-22

申请人： GENERAL ELECTRIC COMPANY ,  BERROTERAN, Igor ,  CHANG, Shouzhong

发明人： BERROTERAN, Igor ,  CHANG, Shouzhong

IPC分类号： H02J3/38 ,  H02J7/00 ,  H02J9/00 ,  F03D9/11

摘要： A method for operating a PV system (14) that is integrated into a power system (10) connected to a power grid (22) includes determining a voltage operating point for the PV system (14) based on a maximum power point tracking (MPPT) algorithm (102). If an available power output of the PV system (14) can be provided to the power grid (22), the method includes operating the PV system (14) based on the voltage operating point (106). If the maximum available power output of the PV system (14) cannot be provided to the power grid (22), the method includes applying a voltage step to the voltage operating point to drive a power output of the PV system (14) towards an external power constraint (108).And a hybrid power system connected to a power grid is disclosed.

公开(公告)号：WO2023077263A1

公开(公告)日：2023-05-11

申请号：PCT/CN2021/128151

申请日：2021-11-02

申请人： GENERAL ELECTRIC RENOVABLES ESPANA, S.L. ,  CHANG, Shouzhong

发明人： WILMOT, Theodore Steven ,  PEPPLE, Matthew David

IPC分类号： F03D7/02 ,  F03D17/00 ,  F03D80/50

摘要： A system for optimizing performance of a wind turbine during noise reduced operation includes a supervisory controller and a converter controller. The converter controller is configured to perform a plurality of operations including operating the wind turbine at a first optimization mode or a second optimization mode. The first optimization mode includes actively adjusting a power output of the wind turbine based on grid parameter (s) so as to maximize energy production of the wind turbine without accelerating consumption of life of component (s) thereof. The second optimization mode includes operating the wind turbine at a maximum power output rating while tracking remaining life of the component (s) based on a plurality of parameters. When the remaining life of the component (s) exceeds a predetermined threshold, the converter controller generates a notification to indicate that a maintenance action is needed.

公开(公告)号：WO2014032249A1

公开(公告)日：2014-03-06

申请号：PCT/CN2012/080763

申请日：2012-08-30

申请人： GENERAL ELECTRIC COMPANY ,  ZHU, Huibin ,  RITTER, Allen Michael ,  LARSEN, Einar Vaughn ,  KLODOWSKI, Anthony Michael ,  BARKER, Sidney Allen ,  WU, Xueqin ,  CHANG, Shouzhong

发明人： ZHU, Huibin ,  RITTER, Allen Michael ,  LARSEN, Einar Vaughn ,  KLODOWSKI, Anthony Michael ,  BARKER, Sidney Allen ,  WU, Xueqin ,  CHANG, Shouzhong

IPC分类号： H02J3/38 ,  H02H7/26

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。