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：US08982592B2

公开(公告)日：2015-03-17

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

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：US08848404B2

公开(公告)日：2014-09-30

申请号：US13558990

申请日：2012-07-26

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

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

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

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

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： H02M7/44 ,  H02M1/14

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

摘要： 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.

摘要翻译： 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：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。

公开(公告)号：US08295063B2

公开(公告)日：2012-10-23

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 ,  H02M1/14

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。

公开(公告)号：US08014181B2

公开(公告)日：2011-09-06

申请号：US12569160

申请日：2009-09-29

申请人： Zhuohui Tan ,  Robert William Delmerico ,  Xiaoming Yuan ,  Haiqing Weng

发明人： Zhuohui Tan ,  Robert William Delmerico ,  Xiaoming Yuan ,  Haiqing Weng

IPC分类号： H02M7/5383 ,  H03L7/00

CPC分类号： H02M7/48 ,  H02J3/40 ,  H02M2007/53876

摘要： A power distribution system comprises a power conversion module for performing power conversion between a DC voltage at a DC side and an AC power at an AC side, and a conversion control system. The AC side of the power conversion module is electrically coupled to a grid. The conversion control system includes a phase-locked-loop circuit for receiving a multi-phase reference signal of a grid voltage and for generating a synchronized signal, a regulator for receiving reference commands, a two-phase grid feedback signal, and the synchronized signal and for generating a control signal for the power conversion module, and a phase compensation circuit for receiving the synchronized signal and the multi-phase reference signal of the grid voltage, for obtaining a phase displacement signal, and for generating a phase compensation signal for compensating the reference commands or for compensating the synchronized signal when the phase displacement signal exceeds a threshold value.

摘要翻译： 配电系统包括用于在直流侧的DC电压和AC侧的AC电力之间进行电力转换的电力转换模块和转换控制系统。 电力转换模块的AC侧电耦合到电网。 转换控制系统包括用于接收电网电压的多相参考信号并用于产生同步信号的锁相环电路，用于接收参考命令的调节器，两相电网反馈信号和同步信号 并且用于产生用于电力转换模块的控制信号，以及用于接收电网电压的同步信号和多相参考信号的相位补偿电路，以获得相位位移信号，并产生用于补偿的相位补偿信号 参考命令或用于当相位位移信号超过阈值时补偿同步信号。

公开(公告)号：US07847526B2

公开(公告)日：2010-12-07

申请号：US11863352

申请日：2007-09-28

申请人： Zhuohui Tan ,  Xiaoming Yuan ,  Changyong Wang ,  Ronghai Qu ,  Robert William Delmerico ,  Patrick Lee Jansen

发明人： Zhuohui Tan ,  Xiaoming Yuan ,  Changyong Wang ,  Ronghai Qu ,  Robert William Delmerico ,  Patrick Lee Jansen

IPC分类号： H02P9/04 ,  H02P9/14 ,  H02P9/10

CPC分类号： H02P6/183 ,  H02P9/42 ,  H02P21/22 ,  H02P29/50 ,  H02P2101/15

摘要： A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive converter control signals and a system controller coupled to the power converter. The system controller includes a fundamental current controller configured for providing fundamental voltage commands, a harmonic current controller configured for using harmonic current commands, current feedback signals from the permanent magnet machine, and fundamental current commands in combination with positive and negative sequence regulators to obtain harmonic voltage commands, and summation elements configured for adding the fundamental voltage commands and the harmonic voltage commands to obtain the converter control signals.

摘要翻译： 一种用于控制永磁同步电机中的转矩脉动的系统，包括配置为耦合到永磁同步电机并接收转换器控制信号的电力转换器和耦合到功率转换器的系统控制器。 系统控制器包括配置用于提供基本电压命令的基波电流控制器，配置为使用谐波电流指令的谐波电流控制器，来自永磁电机的电流反馈信号以及与正序和负序调节器组合的基波电流命令以获得谐波 电压指令以及被配置用于增加基本电压指令和谐波电压指令以获得转换器控制信号的求和元件。