公开(公告)号：US20080198631A1

公开(公告)日：2008-08-21

申请号：US11834828

申请日：2007-08-07

申请人： Jianhong Zeng ,  Yuanyuan Zhang ,  Aibin Qiu ,  Kun Wei ,  Jianping Ying

发明人： Jianhong Zeng ,  Yuanyuan Zhang ,  Aibin Qiu ,  Kun Wei ,  Jianping Ying

IPC分类号： H02M3/335 ,  G05F3/06

CPC分类号： H02M3/3376 ,  H02M2007/4803

摘要： Provided is a flux regulation method for use in a power converter, wherein the method is carried out by a flux bias controller. The flux bias controller includes a current detector which is configured to detect the primary current of the transformer of the power converter in a predetermined switching cycle, a DC bias processor which is configured to obtain the duty ratio control signal according to the sampled primary current outputted from the current detector for a switching cycle later than the predetermined switching cycle, and a PWM controller which is configured to generate driving signals to control the on/off operations of the switching circuit of the power converter according to the duty ratio control signal, thereby suppressing the DC bias of the transformer by regulating the duty ratio of the switch circuit.

摘要翻译： 提供了一种用于功率转换器的磁通调节方法，其中该方法由磁通偏压控制器执行。 通量偏置控制器包括电流检测器，其被配置为在预定的开关周期内检测功率转换器的变压器的初级电流; DC偏置处理器，被配置为根据所输出的采样的一次电流获得占空比控制信号 从电流检测器开始比预定开关周期晚的开关周期，以及PWM控制器，其被配置为产生驱动信号，以根据占空比控制信号来控制功率转换器的开关电路的接通/断开操作，由此 通过调节开关电路的占空比来抑制变压器的直流偏压。

公开(公告)号：US07813148B2

公开(公告)日：2010-10-12

申请号：US11834828

申请日：2007-08-07

申请人： Jianhong Zeng ,  Yuanyuan Zhang ,  Aibin Qiu ,  Kun Wei ,  Jianping Ying

发明人： Jianhong Zeng ,  Yuanyuan Zhang ,  Aibin Qiu ,  Kun Wei ,  Jianping Ying

IPC分类号： H02M3/335

CPC分类号： H02M3/3376 ,  H02M2007/4803

摘要： Provided is a flux regulation method for use in a power converter, wherein the method is carried out by a flux bias controller. The flux bias controller includes a current detector which is configured to detect the primary current of the transformer of the power converter in a predetermined switching cycle, a DC bias processor which is configured to obtain the duty ratio control signal according to the sampled primary current outputted from the current detector for a switching cycle later than the predetermined switching cycle, and a PWM controller which is configured to generate driving signals to control the on/off operations of the switching circuit of the power converter according to the duty ratio control signal, thereby suppressing the DC bias of the transformer by regulating the duty ratio of the switch circuit.

摘要翻译： 提供了一种用于功率转换器的磁通调节方法，其中该方法由磁通偏压控制器执行。 通量偏置控制器包括电流检测器，其被配置为在预定的开关周期内检测功率转换器的变压器的初级电流; DC偏置处理器，被配置为根据所输出的采样的一次电流获得占空比控制信号 从电流检测器开始比预定开关周期晚的开关周期，以及PWM控制器，其被配置为产生驱动信号，以根据占空比控制信号来控制功率转换器的开关电路的接通/断开操作，由此 通过调节开关电路的占空比来抑制变压器的直流偏压。

公开(公告)号：US20050036337A1

公开(公告)日：2005-02-17

申请号：US10916307

申请日：2004-08-11

申请人： Qingyou Zhang ,  Aibin Qiu ,  Jianping Ying ,  Jianhong Zeng

发明人： Qingyou Zhang ,  Aibin Qiu ,  Jianping Ying ,  Jianhong Zeng

IPC分类号： H02M3/158 ,  H02M3/335

CPC分类号： H02M3/1584 ,  H02M1/4225 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02P80/112

摘要： The provided method and control circuit are employed to alternately control the dual boost PFC circuits. The control circuit for alternately controlling parallel-connected first and second boost circuits of a dual boost PFC circuit to achieve a current-sharing of the first and the second boost circuits includes: a first control circuit having a first current control loop for employing an output voltage of the PFC circuit, a feed-forward voltage, and an input reference voltage to generate a current reference, and sending the current reference to an input terminal of the first current control loop to generate a first PWM signal to drive the first boost circuit, and a second control circuit having a second current control loop for receiving the current reference through an input terminal of the second current control loop to generate a second PWM signal to drive the second boost circuit.

摘要翻译： 所提供的方法和控制电路用于交替地控制双升压PFC电路。 用于交替地控制双升压PFC电路的并联连接的第一和第二升压电路以实现第一和第二升压电路的电流共享的控制电路包括：第一控制电路，具有用于采用输出 PFC电路的电压，前馈电压和输入参考电压以产生电流参考，并且将电流基准发送到第一电流控制环路的输入端以产生第一PWM信号以驱动第一升压电路 以及具有第二电流控制回路的第二控制电路，用于通过第二电流控制回路的输入端接收电流基准，以产生驱动第二升压电路的第二PWM信号。

公开(公告)号：US20050024028A1

公开(公告)日：2005-02-03

申请号：US10903154

申请日：2004-07-30

申请人： Jianping Ying ,  Qingyou Zhang ,  Aibin Qiu ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng

发明人： Jianping Ying ,  Qingyou Zhang ,  Aibin Qiu ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng

IPC分类号： H02M1/00 ,  H02M3/158 ,  H02M3/337 ,  G05F1/40

CPC分类号： H02M3/1584 ,  H02M1/4208 ,  H02M3/337 ,  H02M2001/007 ,  Y02B70/126

摘要： An apparatus for reducing the heat losses caused by the DC Bus capacitor current is proposed. The apparatus includes: a double frequency boost converter circuit having two boost converter circuits coupled in parallel, in which two switches, respectively disposed on the two boost converter circuits, are turned on and off alternately to produce an output current having a frequency twice that of control signals of the two switches, and to offer a DC bus respectively, a full-bridge DC-DC converter coupled to an output terminal of the double frequency boost converter circuit for transforming an output of the DC bus to a DC voltage, and a DC bus capacitor coupled to the double frequency boost converter circuit and the full-bridge DC-DC converter in parallel for balancing two corresponding transient powers of the double frequency boost converter circuit and the full-bridge DC-DC converter respectively.

摘要翻译： 提出了一种降低由直流总线电容器电流引起的热损失的装置。 该装置包括：具有并联耦合的两个升压转换器电路的双倍升压转换器电路，其中分别布置在两个升压转换器电路上的两个开关交替地导通和截止，以产生具有频率两倍的频率的输出电流 控制所述两个开关的信号，并分别提供DC总线，耦合到所述双倍升压转换器电路的输出端的全桥DC-DC转换器，用于将所述DC总线的输出转换为DC电压，以及 分别与双倍升压转换器电路和全桥DC-DC转换器并联的DC总线电容器分别平衡双倍升压转换器电路和全桥DC-DC转换器的两个对应的瞬态功率。

公开(公告)号：US07116087B2

公开(公告)日：2006-10-03

申请号：US10916307

申请日：2004-08-11

申请人： Qingyou Zhang ,  Aibin Qiu ,  Jianping Ying ,  Jianhong Zeng

发明人： Qingyou Zhang ,  Aibin Qiu ,  Jianping Ying ,  Jianhong Zeng

IPC分类号： G05F1/40

CPC分类号： H02M3/1584 ,  H02M1/4225 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02P80/112

摘要： The provided method and control circuit are employed to alternately control the dual boost PFC circuits. The control circuit for alternately controlling parallel-connected first and second boost circuits of a dual boost PFC circuit to achieve a current-sharing of the first and the second boost circuits includes: a first control circuit having a first current control loop for employing an output voltage of the PFC circuit, a feed-forward voltage, and an input reference voltage to generate a current reference, and sending the current reference to an input terminal of the first current control loop to generate a first PWM signal to drive the first boost circuit, and a second control circuit having a second current control loop for receiving the current reference through an input terminal of the second current control loop to generate a second PWM signal to drive the second boost circuit.

摘要翻译： 所提供的方法和控制电路用于交替地控制双升压PFC电路。 用于交替地控制双升压PFC电路的并联连接的第一和第二升压电路以实现第一和第二升压电路的电流共享的控制电路包括：第一控制电路，具有用于采用输出 PFC电路的电压，前馈电压和输入参考电压以产生电流参考，并且将电流基准发送到第一电流控制环路的输入端以产生第一PWM信号以驱动第一升压电路 以及具有第二电流控制回路的第二控制电路，用于通过第二电流控制回路的输入端接收电流基准，以产生驱动第二升压电路的第二PWM信号。

公开(公告)号：US07009852B2

公开(公告)日：2006-03-07

申请号：US10903154

申请日：2004-07-30

申请人： Jianping Ying ,  Qingyou Zhang ,  Aibin Qiu ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng

发明人： Jianping Ying ,  Qingyou Zhang ,  Aibin Qiu ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng

IPC分类号： H02M3/335

CPC分类号： H02M3/1584 ,  H02M1/4208 ,  H02M3/337 ,  H02M2001/007 ,  Y02B70/126

摘要： An apparatus for reducing the heat losses caused by the DC Bus capacitor current is proposed. The apparatus includes: a double frequency boost converter circuit having two boost converter circuits coupled in parallel, in which two switches, respectively disposed on the two boost converter circuits, are turned on and off alternately to produce an output current having a frequency twice that of control signals of the two switches, and to offer a DC bus respectively, a full-bridge DC-DC converter coupled to an output terminal of the double frequency boost converter circuit for transforming an output of the DC bus to a DC voltage, and a DC bus capacitor coupled to the double frequency boost converter circuit and the full-bridge DC-DC converter in parallel for balancing two corresponding transient powers of the double frequency boost converter circuit and the full-bridge DC-DC converter respectively.

摘要翻译： 提出了一种降低由直流总线电容器电流引起的热损失的装置。 该装置包括：具有并联耦合的两个升压转换器电路的双倍升压转换器电路，其中分别布置在两个升压转换器电路上的两个开关交替地导通和截止，以产生具有频率两倍的频率的输出电流 控制所述两个开关的信号，并分别提供DC总线，耦合到所述双倍升压转换器电路的输出端的全桥DC-DC转换器，用于将所述DC总线的输出转换为DC电压，以及 分别与双倍升压转换器电路和全桥DC-DC转换器并联的DC总线电容器分别平衡双倍升压转换器电路和全桥DC-DC转换器的两个对应的瞬态功率。

公开(公告)号：US09140744B2

公开(公告)日：2015-09-22

申请号：US13472221

申请日：2012-05-15

申请人： Jianfei Zheng ,  Fei Lu ,  Zhi Li ,  Aibin Qiu

发明人： Jianfei Zheng ,  Fei Lu ,  Zhi Li ,  Aibin Qiu

IPC分类号： F03D9/00 ,  G01R31/28 ,  G01R31/34

CPC分类号： G01R31/2827 ,  G01R31/343 ,  H02H7/06 ,  H02H7/12 ,  H02H9/002

摘要： Provided is a doubly-fed induction generator system and a self-test method for the active crowbar circuit of the doubly-fed induction generator system. The invention is featured by using the controller of the doubly-fed induction generator system to carry out a self-test procedure to detect the loop current of the active crowbar circuit for determining if the active crowbar circuit can be turned on and off normally. Also, the rotor-side converter and the active crowbar circuit of the doubly-fed induction generator system are forbidden to turn on simultaneously during the execution of the self-test procedure.

摘要翻译： 提供了双馈感应发电机系统和双馈感应发电机系统的有源短路电路的自检方法。 本发明的特征在于使用双馈感应发电机系统的控制器进行自检程序，以检测有源短路电路的回路电流，以确定是否正常开启和关闭有源短路电路。 此外，双馈感应发电机系统的转子侧转换器和有源短路电路在执行自检过程期间被禁止同时接通。

公开(公告)号：US20130027003A1

公开(公告)日：2013-01-31

申请号：US13472221

申请日：2012-05-15

申请人： Jianfei Zheng ,  Fei Lu ,  Zhi Li ,  Aibin Qiu

发明人： Jianfei Zheng ,  Fei Lu ,  Zhi Li ,  Aibin Qiu

IPC分类号： H02P9/02

CPC分类号： G01R31/2827 ,  G01R31/343 ,  H02H7/06 ,  H02H7/12 ,  H02H9/002

摘要： Provided is a doubly-fed induction generator system and a self-test method for the active crowbar circuit of the doubly-fed induction generator system. The invention is featured by using the controller of the doubly-fed induction generator system to carry out a self-test procedure to detect the loop current of the active crowbar circuit for determining if the active crowbar circuit can be turned on and off normally. Also, the rotor-side converter and the active crowbar circuit of the doubly-fed induction generator system are forbidden to turn on simultaneously during the execution of the self-test procedure.

摘要翻译： 提供了双馈感应发电机系统和双馈感应发电机系统的有源短路电路的自检方法。 本发明的特征在于使用双馈感应发电机系统的控制器进行自检程序，以检测有源短路电路的回路电流，以确定是否正常开启和关闭有源短路电路。 此外，双馈感应发电机系统的转子侧转换器和有源短路电路在执行自检过程期间被禁止同时接通。