전력전자학회논문지 (The Transactions of the Korean Institute of Power Electronics)

  • 제26권4호
  • /
  • Pages.285-293
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  • 2021
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  • 1229-2214(pISSN)
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  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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가중효율을 적용한 2-Stage Boost 컨버터 최적효율 운전 연구

Optimal Efficiency Operation of 2-Stage Boost Converter With Weighted Efficiency

  • Kim, Seung-Min (Dept. of Electrical Engineering, Chonnam Nat'l University) ;
  • Kim, Dong-Hee (Dept. of Electrical Engineering, Chonnam Nat'l University)
  • 투고 : 2021.04.13
  • 심사 : 2021.05.07
  • 발행 : 2021.08.20
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초록

An optimal operation method based on weighted efficiency for a two-stage boost converter is proposed in this study. Detailed loss analysis of the converter is performed to derive the optimal operation method according to the load and input voltage fluctuations, and the optimal DC-bus voltage is derived by applying the weighted efficiency method. The proposed method can satisfy optimal efficiency in the main operation region without a complicated control method. Using 1kW typical two-stage boost converter and is verified three types of weighted efficiency formulas and loss analysis are utilized to derive high-efficiency optimal DC-bus voltage from each load range.

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과제정보

이 논문은 전남대학교 학술연구비(신진연구)로 지원에 의하여 연구되었음. (과제번호: 2020-0372)

참고문헌

  1. W. Li and X. He, "Review of nonisolated high-step-up DC/DC converters in photovoltaic grid-connected applications," IEEE Transactions on Industrial Electronics, Vol. 58, No. 4, pp. 1239-1250, Apr. 2011. https://doi.org/10.1109/TIE.2010.2049715
  2. B. M. Alharbi, M. A. Alhomim, and R. A. McCann, "A high voltage ratio three-stage cascaded interleaved boost converters for PV application," in 2020 IEEE Power and Energy Conference at Illinois (PECI), Champaign, IL, USA, pp. 1-5, Feb. 2020.
  3. A. G. Dath, P. Kumar, and S. Divya, "Design and modeling of a novel two-stage cascaded interleaved boost converter for high voltage applications," in Michael Faraday IET International Summit 2015, Kolkata, pp. 511-514, Sep. 2015.
  4. S. W. Lee and D. H. Lark, "High step-up cascade boost DC-DC converter using coupled inductor with ripple-free input current," Journal of Power Electronics, pp. 428-429, Jul. 2018.
  5. A. E. Khosroshahi, L. Wang, H. Dadashzadeh, H. Ardi, A. Farakhor, and A. M. Shotorbani, "A two-stage coupled-inductor-based cascaded DC-DC converter with a high voltage gain," in 2019 IEEE Canadian Conference of Electrical and Computer Engineering (CCECE), Edmonton, AB, Canada, pp. 1-5, May 2019.
  6. B. M. Alharbi, M. A. Alhomim, and R. A. McCann, "Robust control for cascade boost converter based on H-infinity controller," in 2020 IEEE Kansas Power and Energy Conference (KPEC), Manhattan, KS, USA, pp. 1-6, Jul. 2020.
  7. P. C. Sen, Magnetic Circuit 3rd, Wiley, pp. 19-23, 2015.
  8. A. Fathah and B. D. Subudhi, "Design of a boost converter," National Institute of Technology Rourkela-769008 (ODISHA), pp. 11, Jun. 2013.
  9. S. M. A. El-Azeem, S. M. El-Ghanam, M. Ismail, F. A. S. Soliman, and S. A. Kamh, "Effect of diode power losses on the operation of boost converter system," National Institute of Technology Nuclear Materials Authority, Vol. 34, pp. 287-297, 2017.
  10. B. Brooks and C. Whitaker, "Guideline for the use of the performance test protocol for evaluating inverters used in grid-connected photovoltaic system," CEC, pp. 17, 2005.
  11. J. H. Kim, B. G. Yu, J. H. So, K. O. Lee, and G. J. Yu, "A study of korean efficiency of PV PCS," The Korean Solar Energy Society, Vol. 29, No. 2, Nov. 2009.