DOI QR코드

DOI QR Code

An Improved Feed-Forward Controller for the Parallel Operation of a Single-Phase PWM Converter in High-Speed Trains

고속철도용 단상 PWM 컨버터의 병렬운전을 위한 개선된 전향제어기

  • 박병건 (한양대 대학원 전기공학과) ;
  • 현동석 (한양대 전기제어생체공학부)
  • Received : 2010.01.08
  • Accepted : 2010.05.10
  • Published : 2010.06.20

Abstract

This paper proposes an improved feed-forward controller that calculates the gain value by estimating the changed boost inductance in practical operating condition of transformer. The boost inductance is estimated by the measurement of input current and voltage. The estimated boost inductance is optimized by the least square method. The proposed feed-forward controller can be achieved the robust control through the gain value calculating the estimated boost inductance despite of the changed condition of transformer and can minimize the interference phenomenon by reducing the harmonics of input current. The validity of proposed technique is verified through the simulation and experiment.

본 논문은 실제적인 변압기 운전환경에서 변화하는 승압형 인덕턴스를 실시간으로 추정하여 그 값을 통해 이득값을 계산하는 전향제어기를 제안하였다. 승압형 인덕턴스는 입력 전류의 변화분과 입력 교류 전압의 측정치만을 이용하여 추정되고, 그 값은 최소자승법을 적용하여 최적화 된다. 제안된 전향제어기는 변압기 운전 환경의 변화에도 강인한 제어가 가능하며, 입력 전류의 고조파 성분을 감소시켜 간섭현상에 따른 성능 저하를 최소화 할 수 있다. 제안된 기법의 타당성은 시뮬레이션과 실험 결과를 통해 검증하였다.

Keywords

References

  1. Shen. J., Taufig. J. A., and Mansell. A. D. "Analytical solution to harmonic characteristics of traction PWM converters", IEE Proceedings on Electronic Power Applications, Vol. 144, No. 2, pp. 158-168, 1997.
  2. 정환진, 박병건, 현동석, "고속철도용 단상 PWM 컨버터의 병렬운전을 위한 비간섭 전향 보상기", 전력전자학술대회, Vol. 1, pp. 259-261, 2009. 7. 7-10.
  3. Stihi. O. and Boon-Teck Ooi, "A single-phase controlled-current PWM rectifier", IEEE Transactions on Power Electronics, Vol. 3, No. 4, pp. 453-459, 1998, Oct.
  4. Christopher K. Duffey et al, "Update of Harm onics Standard IEEE-519 : Recommended Prac tices and Requirements for Harmonics Control in Electronic Power System", IEEE Transactions on Industrial Applications, Vol. 25, Issue 6, pp. 1025-1034, 1989, Nov.-Dec. https://doi.org/10.1109/28.44238
  5. 이현원, 장성영, 김연준, 이광주, "IGCT를 이용한 단상 PWM정류기 병렬운전", 전력전자학회 논문지, Vol. 5, No. 2, pp. 11-18, 2000. 2.
  6. Hwan-Jin Jung, Byoung-Gun Park and Dong-Seok Hyun, "Real-Time Estimation of the Boost Inductance for Traction PWM Converters," Proceeding of ISIE2009, Vol. 1, pp. 499-504, 2009, 5-8 July.
  7. 이동춘, 최종우, 이현동, 설승기, "전철용 단상 GTOPWM 컨버터의 병렬운전", 대한전기학회 논문지, Vol. 44, No. 6, pp. 756-76, 1995. 6.
  8. Hurley, W.G and Wilcox, D.J, "Calculation of leakage inductance in transformer windings," IEEE Transactions on Power Electronics, Vol. 9, No. 1, pp. 121-126, 1994, Jan. https://doi.org/10.1109/63.285502

Cited by

  1. DC-link Voltage Ripple Compensation Method for Single Phase 3-level PWM Converters vol.27, pp.4, 2013, https://doi.org/10.5207/JIEIE.2013.27.4.008
  2. A Study on Powering Characteristic on Speed Variation of Propulsion System of Prototype 8200 Electric Locomotive vol.63, pp.10, 2014, https://doi.org/10.5370/KIEE.2014.63.10.1467