公开(公告)号：US20130027997A1

公开(公告)日：2013-01-31

申请号：US13560070

申请日：2012-07-27

Applicant: Zhuohui Tan ,  Xueqin Wu ,  Xinhui Wu ,  Maozhong Gong

Inventor： Zhuohui Tan ,  Xueqin Wu ,  Xinhui Wu ,  Maozhong Gong

IPC: H02M7/44

CPC classification number: H02J3/385 ,  G05F1/67 ,  H02M7/48 ,  H02M2001/007 ,  Y02E10/58

Abstract: 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.

Abstract translation: 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：US08705256B2

公开(公告)日：2014-04-22

申请号：US13324154

申请日：2011-12-13

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

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

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

CPC classification number: H02J3/383 ,  Y02E10/563

Abstract: 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.

Abstract translation: 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：US20130274946A1

公开(公告)日：2013-10-17

申请号：US13446423

申请日：2012-04-13

Applicant: Owen Jannis Schelenz ,  Kathleen Ann O'Brien ,  David Smith ,  Xinhui Wu

Inventor： Owen Jannis Schelenz ,  Kathleen Ann O'Brien ,  David Smith ,  Xinhui Wu

IPC: G06F1/26

CPC classification number: H02J3/383 ,  Y02E10/563

Abstract: A power plant for providing alternating current (AC) power to an electrical grid is described. The power plant includes a first power converter couplable to the electrical grid at a first point of interconnection for receiving power from a first power source. The power plant also includes a second power converter couplable to the electrical grid at the first point of interconnection for receiving power from a second power source. The power plant also includes at least one sensor for measuring a voltage level at the first point of interconnection and a central controller for coordinating operation of the first power converter and the second power converter to determine an impedance of the electrical grid.

Abstract translation: 描述了用于向电网提供交流（AC）电力的发电厂。 发电厂包括在第一互连点处可耦合到电网的第一功率转换器，用于从第一电源接收功率。 该发电厂还包括一个第二电力转换器，该第二电力转换器可在第一互连点连接到电网，以从第二电源接收功率。 发电厂还包括至少一个用于测量第一互连点处的电压电平的传感器和用于协调第一功率转换器和第二功率转换器的操作以确定电网的阻抗的中央控制器。

公开(公告)号：US20120314467A1

公开(公告)日：2012-12-13

申请号：US13324154

申请日：2011-12-13

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

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

IPC: H02M7/537

CPC classification number: H02J3/383 ,  Y02E10/563

Abstract: 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.

Abstract translation: 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：US08982592B2

公开(公告)日：2015-03-17

申请号：US13560070

申请日：2012-07-27

Applicant: Zhuohui Tan ,  Xueqin Wu ,  Xinhui Wu ,  Maozhong Gong

Inventor： Zhuohui Tan ,  Xueqin Wu ,  Xinhui Wu ,  Maozhong Gong

IPC: H02M7/537 ,  H02J3/38 ,  G05F1/67 ,  H02M7/48 ,  H02M1/00

CPC classification number: H02J3/385 ,  G05F1/67 ,  H02M7/48 ,  H02M2001/007 ,  Y02E10/58

Abstract: 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.

Abstract translation: 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：US08848404B2

公开(公告)日：2014-09-30

申请号：US13558990

申请日：2012-07-26

Applicant: Zhuohui Tan ,  Xinhui Wu ,  Xueqin Wu ,  Maozhong Gong ,  Xiaoming Guo

Inventor： Zhuohui Tan ,  Xinhui Wu ,  Xueqin Wu ,  Maozhong Gong ,  Xiaoming Guo

IPC: H02M7/757 ,  H02M7/515 ,  H02M7/797

CPC classification number: H02M7/515 ,  H02J3/385 ,  H02M1/32 ,  H02M7/5395 ,  H02M2001/007 ,  Y02E10/56 ,  Y02E10/58

Abstract: An exemplary power conversion system is disclosed including a DC bus for receiving DC power; a line side converter electrically coupled to the DC bus for converting the DC power to AC power; and a voltage source controller to provide control signals to enable the line side converter to regulate the AC power. The voltage source controller comprises a signal generator to generate the control signals based at least in part on a power command signal and a power feedback signal. The voltage source controller further comprises a current limiter to, during a transient event, limit the control signals based at least in part on an electrical current threshold. The voltage source controller further comprises a voltage limiter to, during the transient event, limit the control signals based at least in part on a DC bus voltage feedback signal and a DC boundary voltage threshold.

Abstract translation: 公开了一种示例性的电力转换系统，其包括用于接收DC电力的DC总线; 电耦合到DC总线的线路侧转换器，用于将DC电力转换成AC电力; 以及电压源控制器，用于提供控制信号以使线路侧转换器能够调节AC电力。 电压源控制器包括至少部分地基于功率命令信号和功率反馈信号来产生控制信号的信号发生器。 电压源控制器还包括电流限制器，以在瞬态事件期间至少部分地基于电流阈值来限制控制信号。 电压源控制器还包括电压限制器，以在瞬态事件期间至少部分地基于DC总线电压反馈信号和DC边界电压阈值限制控制信号。

公开(公告)号：US20130027993A1

公开(公告)日：2013-01-31

申请号：US13558990

申请日：2012-07-26

Applicant: Zhuohui Tan ,  Xinhui Wu ,  Xueqin Wu ,  Maozhong Gong ,  Xiaoming Guo

Inventor： Zhuohui Tan ,  Xinhui Wu ,  Xueqin Wu ,  Maozhong Gong ,  Xiaoming Guo

IPC: H02M7/44 ,  H02M1/14

CPC classification number: H02M7/515 ,  H02J3/385 ,  H02M1/32 ,  H02M7/5395 ,  H02M2001/007 ,  Y02E10/56 ,  Y02E10/58

Abstract: An exemplary power conversion system is disclosed including a DC bus for receiving DC power; a line side converter electrically coupled to the DC bus for converting the DC power to AC power; and a voltage source controller to provide control signals to enable the line side converter to regulate the AC power. The voltage source controller comprises a signal generator to generate the control signals based at least in part on a power command signal and a power feedback signal. The voltage source controller further comprises a current limiter to, during a transient event, limit the control signals based at least in part on an electrical current threshold. The voltage source controller further comprises a voltage limiter to, during the transient event, limit the control signals based at least in part on a DC bus voltage feedback signal and a DC boundary voltage threshold.

Abstract translation: 公开了一种示例性的电力转换系统，其包括用于接收DC电力的DC总线; 电耦合到DC总线的线路侧转换器，用于将DC电力转换成AC电力; 以及电压源控制器，用于提供控制信号以使线路侧转换器能够调节AC电力。 电压源控制器包括至少部分地基于功率命令信号和功率反馈信号来产生控制信号的信号发生器。 电压源控制器还包括电流限制器，以在瞬态事件期间至少部分地基于电流阈值来限制控制信号。 电压源控制器还包括电压限制器，以在瞬态事件期间至少部分地基于DC总线电压反馈信号和DC边界电压阈值限制控制信号。