• Title/Summary/Keyword: Linearized SHE-PWM

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On-line Techniques of SHE-PWN for Current Source GTO Converter (전류형 GTO 컨버터의 SHE-PWM 실시간제어기법)

  • 최재호;팽성일;채경훈
    • The Transactions of the Korean Institute of Power Electronics
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    • v.4 no.6
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    • pp.523-530
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    • 1999
  • This paper presents the on -line techniques of SHE-PvVI\I for GTO current source converter. The look-up t table is linearized with this proposed method so that the tum-on/off periods of the GTO switches can be c computed in real-time for any modulation index. This allows the rapid and continuous regulation of the DC O output current while producing the sinusoidal AC input current waveform and unity power factor. The l linearized S}lE-PW~I technique and the high power factor control scheme are Prolxlsed and their‘ performance i is tested analytically. The validity of this proposed technique is well verified through the simulation and e experimental results.

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A Study on the SHE PWM Inverter Using the Linearized Characteristics of Switching Angle for Carrier Wave (선형화한 스위칭각 특성파형을 반송파로 사용한 SHE PWM인버터에 관한 연구)

  • Kim, Kwon-Ho;Yoong, Kwan-Cheol;Song, Joong-Ho;Kim, Kwang-Bae;Lyou, Kyoung;Park, Gwi-Tae
    • The Transactions of the Korean Institute of Electrical Engineers
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    • v.39 no.7
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    • pp.668-679
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    • 1990
  • The fully digitalized inveter has some difficulties in implementation because of the limitation of available memory capacity and computation time. This paper describes a new PWM(Pulse Width Modulation) Inverter technique which linearizes switching angle characteristics of SHEPWM(Selected Harmonic Eliminatin Pulse Width Modulation) Inverter. Also the detailed description of the scheme along with the realization is presented. The simulation and experimental results show that the proposed schemes have the advantates such as good voltage waveforms and memory-saving.

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