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    • 1. 发明授权
    • System and method for DC power transmission
    • 直流输电系统及方法
    • US09013904B2
    • 2015-04-21
    • US13435105
    • 2012-03-30
    • Di ZhangLuis Jose Garces
    • Di ZhangLuis Jose Garces
    • H02M7/00H02J3/36H02M7/493H02J1/02H02M1/00
    • H02M7/493H02J1/02H02J3/36H02J2003/365H02M2001/0048H02M2001/0077Y02B70/1491Y02E60/60
    • A power transmission system is provided. The power transmission system includes a power source for providing power. The system also includes a power conversion system comprising power converters coupled to receive the power and convert the power to DC power, wherein the power conversion system comprises a plurality of legs each configured for pulse width modulation. The system further includes a controller comprising an analysis module programmed for determining a number of legs for switching for minimizing a cost function based on operating conditions of the power conversion system. The controller also includes a switch control module programmed for using the number of legs determined by the analysis module for generating switching commands for the power conversion system. The system also includes a DC transmission bus coupled to receive the DC power and transmit the DC power.
    • 提供电力传输系统。 电力传输系统包括用于提供电力的电源。 该系统还包括电力转换系统,其包括被耦合以接收电力并将功率转换成DC电力的功率转换器,其中所述功率转换系统包括多个腿,每个腿被配置用于脉宽调制。 该系统还包括控制器,该控制器包括分析模块,该分析模块被编程为基于功率转换系统的操作条件来确定用于切换的多个支路以最小化成本功能。 该控制器还包括开关控制模块,该开关控制模块被编程用于使用由分析模块确定的腿数来产生用于功率转换系统的切换命令。 该系统还包括耦合以接收DC电力并传输DC电力的DC传输总线。
    • 2. 发明申请
    • SYSTEM AND METHOD FOR DC POWER TRANSMISSION
    • 用于直流电力传输的系统和方法
    • US20130258733A1
    • 2013-10-03
    • US13435105
    • 2012-03-30
    • Di ZhangLuis Jose Garces
    • Di ZhangLuis Jose Garces
    • H02M7/217
    • H02M7/493H02J1/02H02J3/36H02J2003/365H02M2001/0048H02M2001/0077Y02B70/1491Y02E60/60
    • A power transmission system is provided. The power transmission system includes a power source for providing power. The system also includes a power conversion system comprising power converters coupled to receive the power and convert the power to DC power, wherein the power conversion system comprises a plurality of legs each configured for pulse width modulation. The system further includes a controller comprising an analysis module programmed for determining a number of legs for switching for minimizing a cost function based on operating conditions of the power conversion system. The controller also includes a switch control module programmed for using the number of legs determined by the analysis module for generating switching commands for the power conversion system. The system also includes a DC transmission bus coupled to receive the DC power and transmit the DC power.
    • 提供电力传输系统。 电力传输系统包括用于提供电力的电源。 该系统还包括电力转换系统,其包括被耦合以接收电力并将功率转换成DC电力的功率转换器,其中所述功率转换系统包括多个腿,每个腿被配置用于脉宽调制。 该系统还包括控制器,该控制器包括分析模块,该分析模块被编程为基于功率转换系统的操作条件来确定用于切换的多个支路以最小化成本功能。 该控制器还包括开关控制模块,该开关控制模块被编程用于使用由分析模块确定的腿数来产生用于功率转换系统的切换命令。 该系统还包括耦合以接收DC电力并传输DC电力的DC传输总线。
    • 6. 发明授权
    • Cross current control for power converter systems and integrated magnetic choke assembly
    • 电力转换器系统和集成式磁阻组件的交流电流控制
    • US06917271B2
    • 2005-07-12
    • US10727390
    • 2003-12-03
    • Richard S. ZhangJames Patrick LyonsLuis Jose GarcesXiaoming Yuan
    • Richard S. ZhangJames Patrick LyonsLuis Jose GarcesXiaoming Yuan
    • H02M5/45H02M7/217H02M7/48H02M7/493H01F27/34
    • H02M7/493H01F37/00H02M5/45H02M7/217
    • A cross current control system for multiple, parallel-coupled power converters includes common mode chokes, local cross current feedback controllers, and local converter controllers. Each common mode choke is coupled to a respective power converter. Each local cross current feedback controller is configured for receiving common mode cross currents from a respective local cross current detector, calculating a resultant cross current, and generating a local feedback control signal. Each local converter controller is configured for using a respective local feedback control signal to drive the respective power converter in accordance with a coordinated switching pattern. An integral choke assembly includes a common mode choke and a differential mode choke with common and differential mode choke cores configured with at least one magnetic flux path being shared by magnetic flux generated by common mode coils and differential mode coils.
    • 用于多个并联耦合的功率转换器的交叉电流控制系统包括共模扼流圈,局部交叉电流反馈控制器和本地转换器控制器。 每个共模扼流圈耦合到相应的功率转换器。 每个局部交叉电流反馈控制器被配置为从相应的局部交叉电流检测器接收共模交叉电流,计算合成的交叉电流以及产生局部反馈控制信号。 每个本地转换器控制器被配置为使用相应的本地反馈控制信号来根据协调的切换模式来驱动相应的功率转换器。 整体式扼流圈组件包括共模扼流圈和具有公共和差模扼流圈的差模扼流圈,其配置有由共模线圈和差模线圈产生的磁通共享的至少一个磁通路径。