대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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PCR과 인버터의 결합에 의한 고조파 해석

The Harmonic Analysis for Inverter related with PCR

  • Kang, Seol-Moog (Dept. of Electronics, Kyungpook National University) ;
  • Koo, Bon-Ho (Dept. of Electronics, Kyungpook National University) ;
  • Kwen, Wu-Hyen (Dept. of Electronics, Kyungpook National University) ;
  • Kim, Soo-Joong (Dept. of Electronics, Kyungpook National University)
  • 발행 : 1987.07.03
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초록

In phase controlled rectifier(PCR), harmonica are changed according to the variation of a firing angle. These harmonics are supplied with the input of the inverter. And then, inverter output comes about the harmonics combined with the switching frequency of the inverter. Hence the efficiency of the induction motor ia decreased by the harmonic of the inverter output. In this paper, it analyzed about an effect of these harmonics ia analyzed by a computer simulation. The total harmonic distortion (THD) in the case of PCR containing the ripple was considerably larger than THO of the DC source. Therefore, it was proved that the firing angle variation of PCR had to be limited.

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