전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제58권8호
  • /
  • Pages.1544-1550
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  • 2009
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

직접전력변환 방식을 이용한 전압 강하/상승 보상기의 구현

Implementation of Voltage Sag/Swell Compensator using Direct Power Conversion

  • 발행 : 2009.08.01
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초록

In this paper, a new single phase voltage sag/swell compensator using direct power conversion is proposed. A new compensator consists of input/output filter, series transformer and direct ac-ac converter, which is a single-phase back-to-back PWM converter without dc-link capacitors. Advantages of the proposed compensator include: simple power circuit by eliminating dc link electrolytic capacitors and thereby, improved reliability and increased life time of the entire compensator; simple PWM strategy or compensating voltage sag/swell at the same time and reduced switching losses in the ac-ac converter. Further, the proposed scheme is able to adopt simple switch commutation method without requiring complex four-step commutation method that is commonly employed in the direct power conversion. Simulation and experimental results are shown to demonstrate the advantages of the new compensator and PWM strategy. A 220V, 3kVA single-phase compensator based on the digital signal processor controller is built and tested.

키워드

참고문헌

  1. D. Sabin, 'An assessment of distribution system power quality,' Elect. Power Res. Inst. Palo Alto, CA EPRI Final Rep. TR-106294-V2, vol. 2, Statistical summary report, May 1996
  2. M. H. J. Bollen, 'Understanding power quality problems - voltage sags and interruption,' ISBN 0-7803-4713-7, IEEE Press, 2000
  3. J. L. Duran-Gomez, P. N. Enjeti, and A. von Jouanne, 'An approach to achieve ride-through of an adjustable speed drive with fly-back converter modules powered by super capacitors,' in Conf. Rec. IEEE-IAS Annual Meeting, vol. 3, 1999, pp. 1623-1629
  4. J. L. Duran-Gomez, P. N. Enjeti, and B. O. Woo, 'Effect of voltage saga on adjustable speed drives - A critical valuation and an approach to improve its performance,' IEEE Trans. Ind. Applications, vol. 35, Nov./Dec. 1999, pp. 1440-1449 https://doi.org/10.1109/28.806060
  5. A. Kara, P. Dahler, D. Amhof, and H. Gruning, 'Power supply quality improvement with a dynamic voltage restorer (DVR),' in Proc. IEEE APEC'98, vol. 2, 1998, pp. 986-993
  6. N. H. Woodley, L. Morgan, and A. Sundaram, 'Experience with an inverter-based dynamic voltage restorer,' IEEE Trans. Power Delivery, vol. 14, pp. 1181-1186 https://doi.org/10.1109/61.772390
  7. E. C. Aeloiza, P. N. Enjeti, L. A. Moran, O. C. Montero-Hernandez, and S. Kim, 'Analysis and design of a new voltage sag compensator for critical loads in electrical power distribution systems,' IEEE Trans. Ind. Applications, vol. 39, July/Aug. 2003, pp. 1143-1150 https://doi.org/10.1109/TIA.2003.813740
  8. K. Lee, H Koizumi, K. Kurokaea, 'Voltage control of D-UPFC between a clustered PV system and Distribution system', in Proc. IEEE PESC'06, june 2006, p 1-5
  9. S. Kim, S. K. Sul and T. A. Lipo, 'AC/AC power conversion based on matrix converter topology with unidirectional switches,' IEEE Trans. Ind. Applications, Vol. 36, No.1, 2000, pp. 139-145 https://doi.org/10.1109/28.821808
  10. C. Klumpner and F. Blaabjerg, 'Modulation method for a mUltiple drive system based on a two-stage direct power conversion topology with reduced input current ripple,' IEEE Trans. on Power Elec., vol.20, july, 2005, pp. 922-9 https://doi.org/10.1109/TPEL.2005.850965
  11. H. Cha, S. Lee, 'Design and Implementation of Photovoltaic Power Conditioning System Using a Current Based Maximum Power Point Tracking', in Proc. IEEE-IAS Annual Meeting, October. 2008, pp.1-5
  12. 차한주, 부우층기엔, '단상계통연계 태양광 인버터용 L-C-L 필터 설계 및 분석', 대한전기학회전기기기 및 에너지변환시스템 부문회 춘계학술대회, 2009, pp. 228-230
  13. A. Sundaram, 'Distribution System Power Quality Assessment: Phase II Voltage Sag and Interruption Analysis' Technical Report 1001678 in EPRI, march, 2003