System and method for determining inductance in a power converter

    公开(公告)号:US10024898B2

    公开(公告)日:2018-07-17

    申请号:US15191556

    申请日:2016-06-24

    Abstract: A system includes a power converter including a primary bridge unit to receive a primary voltage from a voltage source, the primary bridge unit includes a first plurality of electronic switches, and each of the first plurality of electronics switches has a turn ON time and a turn OFF time. Further, the power converter includes a transformer including a primary winding and a secondary winding, the primary winding is coupled to the first plurality of electronic switches. Also, the power converter includes a secondary bridge unit including a second plurality of electronic switches coupled to the secondary winding. Additionally, the system includes a controller to determine an inductance of the power converter based on the primary voltage, the turn ON time of the first plurality of electronic switches, a switching cycle time of the power converter, and one of an average current and a peak current in the power converter.

    System and method for controlling current in a power converter

    公开(公告)号:US09780675B2

    公开(公告)日:2017-10-03

    申请号:US14965904

    申请日:2015-12-11

    Abstract: A power converter is presented. The power converter includes a primary bridge unit coupled to a voltage source. Further, the power converter includes a secondary bridge unit coupled to a load. Also, the power converter includes a transformer disposed between the primary bridge unit and the secondary bridge unit and configured to magnetically couple the primary bridge unit to the secondary bridge unit. Additionally, the power converter includes a current sensor configured to measure instantaneous current flowing at an input terminal of the transformer. Furthermore, the power converter includes a cyclic state controller configured to receive the measured instantaneous current flowing at the input terminal of the transformer, and change a switching state of the power converter from a present switching state to a subsequent switching state based on the measured instantaneous current.

    Apparatus and method for avoiding transformer saturation
    24.
    发明授权
    Apparatus and method for avoiding transformer saturation 有权
    避免变压器饱和的装置和方法

    公开(公告)号:US09178437B2

    公开(公告)日:2015-11-03

    申请号:US13731143

    申请日:2012-12-31

    CPC classification number: H02M3/33576 H02M1/40 H02M3/33507 H02M3/33584

    Abstract: A controller for a power converter includes one or more controller modules operably linked to a transformer core of the power converter, to primary bridge switches of the power converter, and to secondary bridge switches of the power converter, wherein the one or more controller modules are configured to avoid saturation of the transformer core by modulating pulse widths of first electrical pulses sent to the primary bridge switches, based at least on measurements of DC components of current through primary and secondary windings adjacent the transformer core, and by modulating pulse widths of second electrical pulses sent to the secondary bridge switches, based at least on measurements of DC components of current through the primary and secondary windings.

    Abstract translation: 用于功率转换器的控制器包括可操作地连接到功率转换器的变压器铁芯的一个或多个控制器模块,功率转换器的主桥开关和功率转换器的次级桥式开关,其中一个或多个控制器模块是 配置为通过至少基于通过与变压器铁芯相邻的初级和次级绕组的电流的DC分量的测量以及通过调制第二级的脉冲宽度来测量发射到主桥式开关的第一电脉冲的脉冲宽度来避免变压器铁心的饱和 至少基于通过初级和次级绕组的电流的直流分量的测量,发送到次级桥式开关的电脉冲。

    METHODS AND SYSTEMS FOR SUBSEA DIRECT CURRENT POWER DISTRIBUTION
    25.
    发明申请
    METHODS AND SYSTEMS FOR SUBSEA DIRECT CURRENT POWER DISTRIBUTION 有权
    用于直接电流分配的方法和系统

    公开(公告)号:US20150188314A1

    公开(公告)日:2015-07-02

    申请号:US14142101

    申请日:2013-12-27

    Abstract: A subsea power distribution module includes an outer vessel defining an interior chamber and a plurality of power modules disposed within the interior chamber. The outer vessel is configured to maintain a pressure within the interior chamber substantially the same as an ambient pressure outside the outer vessel. Each power module includes a pressure vessel defining an interior chamber and a power converter disposed within the interior chamber of the pressure vessel. Each pressure vessel is configured to maintain a substantially constant pressure within the interior chamber of the pressure vessel.

    Abstract translation: 海底配电模块包括限定内部室的外部容器和设置在内部室内的多个功率模块。 外部容器构造成将内部室内的压力保持在与外部容器外部的环境压力基本相同的位置。 每个功率模块包括限定内部室的压力容器和设置在压力容器的内部室内的功率转换器。 每个压力容器被构造成在压力容器的内部腔室内保持基本恒定的压力。

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