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    ELECTRICAL SYSTEM AND CONTROL METHOD
    2.
    发明申请
    ELECTRICAL SYSTEM AND CONTROL METHOD 有权
    电气系统与控制方法

    公开(公告)号：US20100156192A1

    公开(公告)日：2010-06-24

    申请号：US12341862

    申请日：2008-12-22

    申请人： Changyong Wang ,  Zhuohui Tan ,  Robert William Delmerico ,  Allen Michael Ritter ,  Ralph Teichmann ,  Richard S. Zhang ,  Robert Allen Seymour ,  Xiaoming Yuan

    发明人： Changyong Wang ,  Zhuohui Tan ,  Robert William Delmerico ,  Allen Michael Ritter ,  Ralph Teichmann ,  Richard S. Zhang ,  Robert Allen Seymour ,  Xiaoming Yuan

    IPC分类号： H02M7/48

    CPC分类号： H02M7/53871 ,  H02J3/01 ,  H02J3/40 ,  Y02E40/40 ,  Y10T307/707

    摘要： A power generation system comprises at least two electrical systems connected at an electrical connection point. Each electrical system comprises a power conversion system comprising a converter including a plurality of switches for converting direct current power into alternating current power. The power generation system comprises a control system including at least two pulse width modulation (PWM) modulators, each PWM modulator for obtaining a fundamental waveform and a carrier signal, using the fundamental and carrier signals to generate a PWM pattern, and for providing the PWM pattern to a respective converter for driving the switches of the respective converter. The control system is configured to interleave carrier signals, fundamental waveforms, or a combination of carrier signals and fundamental waveforms of the at least two electrical systems to generate interleaved PWM patterns respectively for the at least two converters.

    摘要翻译： 发电系统包括在电连接点处连接的至少两个电气系统。 每个电气系统包括电力转换系统，其包括转换器，该转换器包括用于将直流电力转换为交流电力的多个开关。 发电系统包括一个包括至少两个脉冲宽度调制（PWM）调制器的控制系统，每个PWM调制器用于获得基波和载波信号，使用基波和载波信号产生PWM模式，并提供PWM 模式到用于驱动各个转换器的开关的相应转换器。 控制系统被配置为交替载波信号，基波或者载波信号和至少两个电气系统的基波形的组合，以分别为至少两个转换器产生交错PWM模式。

    Electrical system and control method
    4.
    发明授权
    Electrical system and control method 有权
    电气系统及控制方法

    公开(公告)号：US07999418B2

    公开(公告)日：2011-08-16

    申请号：US12341862

    申请日：2008-12-22

    申请人： Changyong Wang ,  Zhuohui Tan ,  Robert William Delmerico ,  Allen Michael Ritter ,  Ralph Teichmann ,  Richard S. Zhang ,  Robert Allen Seymour ,  Xiaoming Yuan

    发明人： Changyong Wang ,  Zhuohui Tan ,  Robert William Delmerico ,  Allen Michael Ritter ,  Ralph Teichmann ,  Richard S. Zhang ,  Robert Allen Seymour ,  Xiaoming Yuan

    IPC分类号： G01R19/12

    CPC分类号： H02M7/53871 ,  H02J3/01 ,  H02J3/40 ,  Y02E40/40 ,  Y10T307/707

    摘要： A power generation system comprises at least two electrical systems connected at an electrical connection point. Each electrical system comprises a power conversion system comprising a converter including a plurality of switches for converting direct current power into alternating current power. The power generation system comprises a control system including at least two pulse width modulation (PWM) modulators, each PWM modulator for obtaining a fundamental waveform and a carrier signal, using the fundamental and carrier signals to generate a PWM pattern, and for providing the PWM pattern to a respective converter for driving the switches of the respective converter. The control system is configured to interleave carrier signals, fundamental waveforms, or a combination of carrier signals and fundamental waveforms of the at least two electrical systems to generate interleaved PWM patterns respectively for the at least two converters.

    摘要翻译： 发电系统包括在电连接点处连接的至少两个电气系统。 每个电气系统包括电力转换系统，其包括转换器，该转换器包括用于将直流电力转换为交流电力的多个开关。 发电系统包括一个包括至少两个脉冲宽度调制（PWM）调制器的控制系统，每个PWM调制器用于获得基波和载波信号，使用基波和载波信号产生PWM模式，并提供PWM 模式到用于驱动各个转换器的开关的相应转换器。 控制系统被配置为交替载波信号，基波或者载波信号和至少两个电气系统的基波形的组合，以分别为至少两个转换器产生交错PWM模式。

    Power converter system and method
    5.
    发明授权
    Power converter system and method 有权
    电源转换器系统及方法

    公开(公告)号：US07446435B2

    公开(公告)日：2008-11-04

    申请号：US11289919

    申请日：2005-11-30

    申请人： Richard S. Zhang ,  Changyong Wang ,  Lei Li ,  James Patrick Lyons ,  Zhuohui Tan ,  Allen Michael Ritter

    发明人： Richard S. Zhang ,  Changyong Wang ,  Lei Li ,  James Patrick Lyons ,  Zhuohui Tan ,  Allen Michael Ritter

    IPC分类号： H02M1/12

    CPC分类号： H02M5/4585 ,  H02J3/386 ,  H02M1/12 ,  Y02E10/763

    摘要： A power system for providing an output power to a load is provided. The system comprises a generator configured to generate an alternating current input power and an power converter system coupled to the generator and configured to generate an output power and provide the output power to the load through at least one transformer. The system further comprises a converter control system coupled to the converter system and configured to drive the converter system in an interleaved pattern to reduce harmonic components in the output power and the alternating current input power.

    摘要翻译： 提供了一种用于向负载提供输出功率的电力系统。 该系统包括被配置为产生交流输入功率的发电机和耦合到发电机并被配置为产生输出功率并且通过至少一个变压器向负载提供输出功率的功率转换器系统。 该系统还包括耦合到转换器系统并被配置为以交替模式驱动转换器系统以降低输出功率和交流输入功率中的谐波分量的转换器控制系统。

    Cross current control for power converter system
    6.
    发明申请
    Cross current control for power converter system 有权
    电源转换器系统的交流电流控制

    公开(公告)号：US20090003020A1

    公开(公告)日：2009-01-01

    申请号：US11823714

    申请日：2007-06-27

    申请人： Richard S. Zhang ,  Changyong Wang ,  Zhuohui Tan ,  Haiqing Weng

    发明人： Richard S. Zhang ,  Changyong Wang ,  Zhuohui Tan ,  Haiqing Weng

    IPC分类号： H02J3/00

    CPC分类号： H02M5/4585 ,  H02M1/32 ,  H02M7/17 ,  H02M7/493 ,  H02M2001/123

    摘要： A system and method for controlling cross current in an interleaved power converter system having a plurality of converter threads coupled in parallel includes collecting a feedback current from each thread and obtaining a normal current and a differential mode current for each thread, based on its respective feedback current. The normal current of each thread is regulated to a commanded thread normal current value via a respective normal current control loop based on d-q rotating frame parameters. A differential mode cross current of each thread is regulated to zero via a respective differential mode cross current control loop based on d-q rotating frame parameters; while a differential mode cross current DC offset of each thread is regulated to zero via a respective differential mode cross current control loop based on stationary frame parameters.

    摘要翻译： 一种用于控制具有并联耦合的多个转换器线程的交错电力转换器系统中的交叉电流的系统和方法包括：收集来自每个线程的反馈电流，并且基于其各自的反馈获得每个线程的正常电流和差模电流 当前。 基于d-q旋转帧参数，通过相应的正常电流控制回路将每个线程的正常电流调节到指令线程的正常电流值。 通过基于d-q旋转帧参数的相应的差模交叉电流控制回路将每个线程的差模交叉电流调节为零; 而每个线程的差模交叉电流DC偏移通过基于固定帧参数的相应差模交叉电流控制回路调节为零。

    Cross current control for power converter system
    7.
    发明授权
    Cross current control for power converter system 有权
    电源转换器系统的交流电流控制

    公开(公告)号：US07852643B2

    公开(公告)日：2010-12-14

    申请号：US11823714

    申请日：2007-06-27

    申请人： Richard S. Zhang ,  Changyong Wang ,  Zhuohui Tan ,  Haiqing Weng

    发明人： Richard S. Zhang ,  Changyong Wang ,  Zhuohui Tan ,  Haiqing Weng

    IPC分类号： H02J1/10

    CPC分类号： H02M5/4585 ,  H02M1/32 ,  H02M7/17 ,  H02M7/493 ,  H02M2001/123

    摘要： A system and method for controlling cross current in an interleaved power converter system having a plurality of converter threads coupled in parallel includes collecting a feedback current from each thread and obtaining a normal current and a differential mode current for each thread, based on its respective feedback current. The normal current of each thread is regulated to a commanded thread normal current value via a respective normal current control loop based on d-q rotating frame parameters. A differential mode cross current of each thread is regulated to zero via a respective differential mode cross current control loop based on d-q rotating frame parameters; while a differential mode cross current DC offset of each thread is regulated to zero via a respective differential mode cross current control loop based on stationary frame parameters.

    摘要翻译： 一种用于控制具有并联耦合的多个转换器线程的交错电力转换器系统中的交叉电流的系统和方法包括：收集来自每个线程的反馈电流，并且基于其各自的反馈获得每个线程的正常电流和差模电流 当前。 基于d-q旋转帧参数，通过相应的正常电流控制回路将每个线程的正常电流调节到指令线程的正常电流值。 通过基于d-q旋转帧参数的相应的差模交叉电流控制回路将每个线程的差模交叉电流调节为零; 而每个线程的差模交叉电流DC偏移通过基于固定帧参数的相应差模交叉电流控制回路调节为零。