公开(公告)号：US09509231B2

公开(公告)日：2016-11-29

申请号：US14396917

申请日：2012-04-26

申请人： Huibin Zhu ,  David Smith ,  David Scott Wilmer ,  Maozhong Gong ,  Jun Zhu ,  Xueqin Wu

发明人： Huibin Zhu ,  David Smith ,  David Scott Wilmer ,  Maozhong Gong ,  Jun Zhu ,  Xueqin Wu

IPC分类号： H02M7/537 ,  H02M1/36 ,  H02M5/458 ,  H02M1/32

CPC分类号： H02M7/537 ,  H02M1/32 ,  H02M1/36 ,  H02M5/4585 ,  H02M2001/322

摘要： A power converter system includes a converter configured to be coupled to a power generation unit for receiving current from the power generation unit. A bus is coupled to the converter, and energy is stored within the bus when the current is conducted through the power converter system. A damping circuit is configured to be coupled to the bus and to the power generation unit, and a control system is coupled to the converter and to the damping circuit. The control system is configured to selectively discharge at least a portion of the energy stored within the bus through the damping circuit when the control system determines that a predetermined condition is met.

摘要翻译： 电力转换器系统包括被配置为耦合到用于从发电单元接收电流的发电单元的转换器。 总线耦合到转换器，并且当电流通过功率转换器系统传导时，能量被存储在总线内。 阻尼电路被配置为耦合到总线和发电单元，并且控制系统耦合到转换器和阻尼电路。 控制系统配置成当控制系统确定满足预定条件时，通过阻尼电路选择性地排放存储在总线内的能量的至少一部分。

公开(公告)号：US20150103573A1

公开(公告)日：2015-04-16

申请号：US14396917

申请日：2012-04-26

申请人： Huibin Zhu ,  David Smith ,  David Scott Wilmer ,  Maozhong Gong ,  Jun Zhu ,  Xueqin Wu

发明人： Huibin Zhu ,  David Smith ,  David Scott Wilmer ,  Maozhong Gong ,  Jun Zhu ,  Xueqin Wu

IPC分类号： H02M7/537

CPC分类号： H02M7/537 ,  H02M1/32 ,  H02M1/36 ,  H02M5/4585 ,  H02M2001/322

摘要： A power converter system includes a converter configured to be coupled to a power generation unit for receiving current from the power generation unit. A bus is coupled to the converter, and energy is stored within the bus when the current is conducted through the power converter system. A damping circuit is configured to be coupled to the bus and to the power generation unit, and a control system is coupled to the converter and to the damping circuit. The control system is configured to selectively discharge at least a portion of the energy stored within the bus through the damping circuit when the control system determines that a predetermined condition is met.

摘要翻译： 电力转换器系统包括被配置为耦合到用于从发电单元接收电流的发电单元的转换器。 总线耦合到转换器，并且当电流通过功率转换器系统传导时，能量被存储在总线内。 阻尼电路被配置为耦合到总线和发电单元，并且控制系统耦合到转换器和阻尼电路。 控制系统配置成当控制系统确定满足预定条件时，通过阻尼电路选择性地排放存储在总线内的能量的至少一部分。

公开(公告)号：US20140056041A1

公开(公告)日：2014-02-27

申请号：US14113946

申请日：2011-05-18

申请人： Huibin Zhu ,  David Smith ,  Maozhong Gong ,  Jun Zhu ,  Allen Ritter ,  Robert Gregory Wagoner ,  Anthony Galbraith ,  Xueqin Wu ,  Qiwei Zhang

发明人： Huibin Zhu ,  David Smith ,  Maozhong Gong ,  Jun Zhu ,  Allen Ritter ,  Robert Gregory Wagoner ,  Anthony Galbraith ,  Xueqin Wu ,  Qiwei Zhang

IPC分类号： H02H7/12 ,  H02J5/00

CPC分类号： H02H7/1203 ,  H02M3/1584 ,  H02M7/53871 ,  H02M2001/0003 ,  H02M2001/007

摘要： A power converter system includes a converter configured to be coupled to a power generation unit for receiving power from the power generation unit, and a bus coupled to the converter, wherein a voltage is generated across the bus when electricity is conducted through the power converter system. The power converter system also includes an inverter coupled to the bus, wherein the inverter is configured to supply power to an electrical distribution network. A control system is coupled to at least one of the converter and the inverter, wherein the control system is configured to adjust an operation of the at least one of the converter and the inverter to reduce the voltage across the bus during at least one of a low voltage event and a high voltage event.

摘要翻译： 电力转换器系统包括被配置为耦合到用于从发电单元接收功率的发电单元的转换器和耦合到转换器的总线，其中当通过功率转换器系统进行通电时，总线上产生电压 。 功率转换器系统还包括耦合到总线的逆变器，其中逆变器被配置为向配电网络供电。 控制系统耦合到转换器和逆变器中的至少一个，其中控制系统被配置为调整转换器和逆变器中的至少一个的操作，以在至少一个 低电压事件和高电压事件。

公开(公告)号：US20130077367A1

公开(公告)日：2013-03-28

申请号：US13243294

申请日：2011-09-23

申请人： Huibin Zhu ,  David Smith ,  Anthony William Galbraith ,  Maozhong Gong ,  Xueqin Wu

发明人： Huibin Zhu ,  David Smith ,  Anthony William Galbraith ,  Maozhong Gong ,  Xueqin Wu

IPC分类号： H02M7/537 ,  G05F1/70

CPC分类号： H02J3/16 ,  H02J3/381 ,  H02J2003/001 ,  H02J2003/388 ,  H02M1/32 ,  Y02E40/34

摘要： System, power modules, and methods for supplying an output voltage to an electric grid are provided. One example power module includes a switching device configured to supply an output from a power generator to an electric grid, a feedback unit configured to provide a feedback signal indicative of a deviation of a parameter associated with the electric grid, and a controller coupled to the feedback unit and the switching device. The controller is configured to adjust a reactive current of the output in response to at least one grid fault event to ride through the at least one grid fault event, to modify the deviation provided from the feedback unit, to control the switching device based on the modified deviation, and to detect an islanding condition based on the parameter associated with the electric grid.

摘要翻译： 提供了用于向电网提供输出电压的系统，功率模块和方法。 一个示例性功率模块包括被配置为将来自发电机的输出提供给电网的开关装置，被配置为提供指示与电网相关联的参数的偏差的反馈信号的反馈单元，以及耦合到 反馈单元和开关装置。 控制器被配置为响应于至少一个电网故障事件来调整输出的无功电流以穿过至少一个电网故障事件，以修改从反馈单元提供的偏差，以基于 基于与电网相关的参数来检测孤岛状态。

公开(公告)号：US09843182B2

公开(公告)日：2017-12-12

申请号：US14354336

申请日：2011-10-28

申请人： Huibin Zhu ,  David Smith ,  Maozhong Gong ,  Xeuqin Wu

发明人： Huibin Zhu ,  David Smith ,  Maozhong Gong ,  Xeuqin Wu

IPC分类号： H02H7/10 ,  H02J3/28 ,  G01R31/02 ,  G01R19/25 ,  H02J3/38

CPC分类号： H02H7/10 ,  G01R19/2513 ,  G01R31/024 ,  H02J3/28 ,  H02J3/38 ,  H02J3/383 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E70/30

摘要： Systems (100), power modules (108), and methods for using in controlling a converter (110) coupled between a power generator (104) and an electric grid (102). A power module (108) includes the converter (110) configured to supply the output from the power generator (104) to the electric grid (102) and a controller (112) coupled to the converter (110) and configured to disable the converter (110) in response to a grid fault event, to identify the type or the grid fault event after a first predetermined interval from disabling the converter (110), and to enable switching of the converter (110), when the type of the grid fault event is identified as a low voltage condition.

公开(公告)号：US20140293489A1

公开(公告)日：2014-10-02

申请号：US14354336

申请日：2011-10-28

申请人： Huibin Zhu ,  David Smith ,  Maozhong Gong ,  Xeuqin Wu

发明人： Huibin Zhu ,  David Smith ,  Maozhong Gong ,  Xeuqin Wu

IPC分类号： H02H7/10 ,  G01R31/02

CPC分类号： H02H7/10 ,  G01R19/2513 ,  G01R31/024 ,  H02J3/28 ,  H02J3/38 ,  H02J3/383 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E70/30

摘要： Systems (100), power modules (108), and methods for using in controlling a converter (110) coupled between a power generator (104) and an electric grid (102). A power module (108) includes the converter (110) configured to supply the output from the power generator (104) to the electric grid (102) and a controller (112) coupled to the converter (110) and configured to disable the converter (110) in response to a grid fault event, to identify the type or the grid fault event after a first predetermined interval from disabling the converter (110), and to enable switching of the converter (110), when the type of the grid fault event is identified as a low voltage condition.

摘要翻译： 系统（100），功率模块（108）以及用于控制耦合在发电机（104）和电网（102）之间的转换器（110）的方法。 电源模块（108）包括被配置成将来自发电机（104）的输出提供给电网（102）的转换器（110）和耦合到转换器（110）并被配置为禁用转换器 （110）响应于电网故障事件，以识别在禁用转换器（110）之后的第一预定间隔之后的类型或电网故障事件，以及当电网的类型时能够切换转换器（110） 故障事件被识别为低电压状态。

公开(公告)号：US08705256B2

公开(公告)日：2014-04-22

申请号：US13324154

申请日：2011-12-13

申请人： Kathleen Ann O'Brien ,  Zhuohui Tan ,  Xinhui Wu ,  Maozhong Gong ,  Xueqin Wu

发明人： Kathleen Ann O'Brien ,  Zhuohui Tan ,  Xinhui Wu ,  Maozhong Gong ,  Xueqin Wu

IPC分类号： H02M3/24 ,  H02M7/44 ,  H02M7/537 ,  H02M7/5387

CPC分类号： H02J3/383 ,  Y02E10/563

摘要： Embodiments of the invention relate to a power system for converting direct current (“DC”) power on a DC bus into alternating current (“AC”) power with a regulated voltage output and for feeding the AC power to an electrical system which may include a power utility or an electric grid, for example. A power conversion control system is used for controlling the power conversion and for maintaining the DC bus voltage (“DC voltage”) at a certain level.

摘要翻译： 本发明的实施例涉及一种用于将直流总线上的直流（“DC”）功率转换成具有稳定电压输出的交流（“AC”）功率并将AC功率馈送到电气系统的电力系统，该电气系统可包括 电力公司或电网。 电力转换控制系统用于控制电力转换和将直流母线电压（“直流电压”）保持在一定水平。

公开(公告)号：US20120314467A1

公开(公告)日：2012-12-13

申请号：US13324154

申请日：2011-12-13

申请人： Kathleen Ann O'BRIEN ,  Zhuohui Tan ,  Xinhui Wu ,  Maozhong Gong ,  Xueqin Wu

发明人： Kathleen Ann O'BRIEN ,  Zhuohui Tan ,  Xinhui Wu ,  Maozhong Gong ,  Xueqin Wu

IPC分类号： H02M7/537

CPC分类号： H02J3/383 ,  Y02E10/563

摘要： Embodiments of the invention relate to a power system for converting direct current (“DC”) power on a DC bus into alternating current (“AC”) power with a regulated voltage output and for feeding the AC power to an electrical system which may include a power utility or an electric grid, for example. A power conversion control system is used for controlling the power conversion and for maintaining the DC bus voltage (“DC voltage”) at a certain level.

摘要翻译： 本发明的实施例涉及一种用于将DC总线上的直流（DC）功率转换成具有稳定电压输出的交流（AC）功率并将AC功率馈送到可以包括电力公用事业的电气系统的电力系统的电力系统， 例如电网。 电力转换控制系统用于控制功率转换和将DC总线电压（DC电压）维持在一定水平。

公开(公告)号：US20130027997A1

公开(公告)日：2013-01-31

申请号：US13560070

申请日：2012-07-27

申请人： Zhuohui Tan ,  Xueqin Wu ,  Xinhui Wu ,  Maozhong Gong

发明人： Zhuohui Tan ,  Xueqin Wu ,  Xinhui Wu ,  Maozhong Gong

IPC分类号： H02M7/44

CPC分类号： H02J3/385 ,  G05F1/67 ,  H02M7/48 ,  H02M2001/007 ,  Y02E10/58

摘要： An exemplary power conversion system comprises an MPPT unit, a DC bus, a power converter, and a converter controller. The MPPT unit receives a feedback current signal and a feedback voltage signal from a power source and generates an MPPT reference signal based at least in part on the feedback current and voltage signals. The DC bus receives DC power from the power source. The power converter converts the DC power on the DC bus to AC power. The converter controller receives the MPPT reference signal from the MPPT unit and an output power feedback signal measured at an output of the power converter; generates control signals for AC power regulation and maximum power extraction based at least in part on the MPPT reference signal and the output power feedback signal; and sends the control signals to the power converter.

摘要翻译： 示例性功率转换系统包括MPPT单元，DC总线，功率转换器和转换器控制器。 MPPT单元从电源接收反馈电流信号和反馈电压信号，并至少部分地基于反馈电流和电压信号产生MPPT参考信号。 直流总线从电源接收直流电源。 电源转换器将直流总线上的直流电源转换为交流电源。 转换器控制器从MPPT单元接收MPPT参考信号和在功率转换器的输出处测量的输出功率反馈信号; 至少部分地基于MPPT参考信号和输出功率反馈信号产生用于AC功率调节和最大功率提取的控制信号; 并将控制信号发送到功率转换器。

公开(公告)号：US20120063179A1

公开(公告)日：2012-03-15

申请号：US13080321

申请日：2011-04-05

申请人： Maozhong Gong ,  Zhuohui Tan ,  Xiaoming Yuan ,  Xueqin Wu

发明人： Maozhong Gong ,  Zhuohui Tan ,  Xiaoming Yuan ,  Xueqin Wu

IPC分类号： H02M1/12

CPC分类号： H02M7/48 ,  H02J3/383 ,  H02J3/386 ,  H02M1/12 ,  Y02E10/563 ,  Y02E10/763

摘要： A power conversion system comprises a power converter comprising a plurality of semiconductor power switches, an LC filter coupled between an output of the power converter and an electric grid, and a power conversion control system. The LC filter comprises an inductor coupled in series to the electric grid, and a capacitor. The LC filter and the grid result in an equivalent LC circuit comprising an impedance of the LC filter and an impedance of the electric grid. The power conversion control system comprises a damper and a converter controller. The damper receives an LC filter signal and an equivalent LC circuit impedance signal and generates a damping signal. The converter controller receives a current or voltage reference signal, a current or voltage command signal, and the damping signal to generate control signals for driving switching operations of the semiconductor power switches.

摘要翻译： 电力转换系统包括功率转换器，其包括多个半导体功率开关，耦合在功率转换器的输出和电网之间的LC滤波器和电力转换控制系统。 LC滤波器包括与电网串联耦合的电感器和电容器。 LC滤波器和电网产生包括LC滤波器的阻抗和电网的阻抗的等效LC电路。 电力转换控制系统包括阻尼器和转换器控制器。 阻尼器接收LC滤波器信号和等效LC电路阻抗信号并产生阻尼信号。 转换器控制器接收电流或电压参考信号，电流或电压指令信号和阻尼信号，以产生用于驱动半导体功率开关的开关操作的控制信号。