The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
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A New Inverter Topology for High Voltage and High Power Applications

고전압 대용량을 위한 새로운 인버터 토폴로지

  • Published : 2003.02.01
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Abstract

In this paper, a new three-phase voltage-source inverter topology for high voltage and high Power applications is proposed to improve the quality of output voltage waveform. A chain converter which is used as an auxiliary circuit generates a ripple voltage and injects it to the conventional 12-step inverter. Thus, the injection of the ripple voltage results in 36-step operation with a link and 60-step operation with two links. The proposed inverter is compared to the conventional multilevel inverter in the viewpoint of ratings of phase- shifting transformers, switching devices and capacitors employed. The proposed scheme is simple to control capacitor voltages compared to the conventional schems and is cost effective for high voltage and high power application over several tens of MVA. The proposed approach is validated through simulation, and the experimental results are provided from a 2KVA laboratory prototype.

Keywords

References

  1. 양승욱, 최세완, 문건우, 조정구, 'SVC 적용을 위한 새로운 이중접속방식의 멀티 스？ 인버터', 전력전자학회 논문지, 제4권, 제6호, pp. 547-553. 1999
  2. Masukawa, S.Iida, 'A Method for Reducing Harmonics in Output Voltage of a Double-Connected Inverter', IEEE Trans. on Power Electronics, vol. 9, pp. 543-550, Sep. 1994 https://doi.org/10.1109/63.321039
  3. 최세완, 양승욱, '단상 인버터 동작에 의한 이중접속 3상 전압원 인버터의 출력 파형 개선' 전력전자 학회논문지, 제6권, 제1호, pp.21-26. 2001
  4. K. Oguchi, A. Kawaguchi, T. Kubota, N. Hoshi, 'A Novel Six Phase Inverter System With 60- Step Output Voltages for High-Power Motor Drives', IEEE Trans. on Industry Applications, vol. 35, pp. 1141-1149, September/October 1999 https://doi.org/10.1109/28.793376
  5. Ainsworth J.D, Davies M, Fitz P.J, Owen K.E, Trainer D.R, 'Static Var Compensator (STATCOM) based on single-phase chain circuit converter', IEE Proc-Gener. Transm.Distrib. vol. 145, pp. 381-386, July 1998 https://doi.org/10.1049/ip-gtd:19982032
  6. Nam S. Choi, Jung G. Cho and Gyu H. Cho 'A general circuit topology of multilevel inverter' IEEE/PESC, pp. 96-103, 1991 https://doi.org/10.1109/PESC.1991.162660
  7. Fang Zheng Peng, Jih-Sheng Lai, John W.Mckeever, James VanCoevering 'A Multilevel Voltage-source Inverter with Separate DC Sources for Static Var Generation' IEEE Trans. on Industry Applications, vol. 32, pp. 1130-1138, September/October 1996 https://doi.org/10.1109/28.536875
  8. Clark Hochgraf, Robert Lasseter, Deepak Divan, T.A.Lipo 'Comparison of Multilevel Inverter For Static Var Compensation' in Conference. record. IEEE/IAS Annual Meeting, 1994, pp. 90-94 https://doi.org/10.1109/IAS.1994.377528