• Title/Summary/Keyword: 전고조파왜곡율

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A study on the THD reduction of single phase 2 level inverter for grid connection for ship (선박 계통연계형 단상 2레벨 인버터의 THD 저감에 관한 연구)

  • Kim, Jung-Hoon;Kim, Sung-Hwan;Lee, Sung-Geun
    • Journal of Advanced Marine Engineering and Technology
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    • v.38 no.1
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    • pp.64-69
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    • 2014
  • There are 440V and 220V electric source in ship. A 440V source is used to drive the power system such as crane and winch on deck and pump in engine room, and a 220V source is used to drive the power source for residential zones, control devices in engine room. In this paper, we made single phase inverter system for grid connection with 220V source for ship, and analyzed THD(Total harmonic distortion) by variation of parameters of L-C low pass filter and deadtime of inverter switching.