FOUR-QUADRANT PARTIAL POWER PROCESSING SWITCHED-MODE CONVERTER FOR PHOTOVOLTAIC APPLICATIONS

    公开(公告)号:US20170085090A1

    公开(公告)日:2017-03-23

    申请号:US15311672

    申请日:2015-05-19

    Abstract: Habitations in remote areas around the world lack basic infrastructure to achieve an efficient supply chain. Over 90% of roads are unpaved and fuel infrastructure is scarce. A solar-powered hybrid airship was conceived to address this problem. It is a buoyant low-altitude aircraft with an electric power train and wing-mounted photovoltaic array. Fully electric operation requires efficient lightweight power electronics to maximize range and payload. A Partial Power Processing (PPP) converter based on the bidirectional Cuk topology is demonstrated for this application. Due to the PPP concept, the converter is rated for only about a quarter of the generated PV power. The rating is optimized based on the battery and photovoltaic array voltage ranges. The experimental prototype uses Silicon Carbide MOSFETS and achieves a system efficiency of up to 99.3%.

    SYSTEM AND METHOD FOR MANUFACTURING A TEXTILE STRUCTURE
    6.
    发明申请
    SYSTEM AND METHOD FOR MANUFACTURING A TEXTILE STRUCTURE 审中-公开
    制造纺织结构的系统和方法

    公开(公告)号:US20140367022A1

    公开(公告)日:2014-12-18

    申请号:US14357072

    申请日:2012-11-07

    Inventor: Steve Wallace

    CPC classification number: B65H21/00 B64B1/14 B64F5/00

    Abstract: A method and system for manufacturing complex, three-dimensional textile structures is disclosed. These textile structures may be large and heavy and difficult to maneuver without damaging them. The method enables various types of joints to be constructed between textile panels plus the application of patches and details onto the surface of these panels. The method minimizes handling and damage to the textile material. The method also reduces the manpower required during the manufacturing process, thus minimizing manufacturing time and cost.

    Abstract translation: 公开了用于制造复杂的三维织物结构的方法和系统。 这些纺织结构可能大而重且难以操纵而不损坏它们。 该方法使得可以在织物面板之间构建各种类型的接头,以及将贴片和细节应用于这些面板的表面上。 该方法可最大限度地减少纺织材料的处理和损坏。 该方法还减少了在制造过程中所需的人力,从而最小化了制造时间和成本。

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