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Power conversion device

  • US 10,033,290 B2
  • Filed: 05/07/2012
  • Issued: 07/24/2018
  • Est. Priority Date: 05/31/2011
  • Status: Active Grant
First Claim
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1. A power conversion apparatus for converting polyphase ac power directly to ac power, the power conversion apparatus comprising;

  • a conversion circuit including a plurality of first switching devices connected, respectively, with phases of the polyphase ac power, and configured to enable electrical switching operation in both directions, and a plurality of second switching devices connected, respectively, with the phases of the polyphase ac power, and configured to enable electrical switching operation in both directions;

    a plurality of input lines connected, respectively, with input terminals of the first switching devices and input terminals of the second switching devices, anda first output line connected with output terminals of the first switching devices, and a second output line connected with output terminals of the second switching devices,as a spatial arrangement, the output terminals of the first switching devices being arranged in a row and the output terminals of the second switching devices being arranged in a row,the first switching devices and the second switching devices arranged in a direction of the rows being arranged side by side with respect to the first and second output lines,the first and second output lines being arranged to cross the plurality of input lines in a grade separation,wherein the first and second output lines are located between the input terminals of the first switching devices and the input terminals of the second switching devices,the input and output terminals of the first switching devices and the input and output terminals of the second switching devices are formed at a first level, and the first and second output lines are formed at a second level different from the first level, andthe first and second output lines at the second level are located between the input terminals of the first switching devices and the input terminals of the second switching devices formed at the first level.

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