전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)

전력전자학회 (The Korean Institute of Power Electronics)
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CURRENT-CONTROLLED PWM-RECTIFIER WITH di/dt FEEDBACK/VOLTAGE-SOURCE INVERTER WITHOUT DC LINK COMPONENTS FOR INDUCTION MOTOR DRIVE

  • Iimori, Kenichi (Department of Electrical and Electronics Engineering, Faculty of Engineering, Kagoshima University) ;
  • Shinohara, Katsuji (Department of Electrical and Electronics Engineering, Faculty of Engineering, Kagoshima University) ;
  • Muroya, Mitsuhiro (Kagoshima National College of Technology) ;
  • Kitanaka, Hidetoshi (Department of Electrical and Electronics Engineering, Faculty of Engineering, Kagoshima University)
  • 발행 : 1998.10.01
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초록

The voltage-source inverters are normally equipped with an electrolytic capacitor in their DC link, however, the electrolytic capacitor has several disadvantages such as increasing size, limiting converter life and reliability. Therefore, several approaches for removing the DC link capacitor have been studied by the authors. This paper proposes a new voltage-source inverter without DC link components. To reduce waveform distortion of the AC source current, the current-controlled PWM-rectifier with di/dt feedback is introduced. The di/dt feedback gain and LC parameters are investigated by calculation for a 0.75kW induction motor driven by this inverter. The calculated AC source currents maintain nearly sinusoidal waveforms with a unity power factor.

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