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

The Korean Institute of Power Electronics (전력전자학회)
권호 표지
DOI QR코드

DOI QR Code

Development of Advanced Phase-Shedding Control Algorithm for DVR Power Supply

DVR 전원용 진보된 Phase-Shedding 제어 알고리즘 개발

  • Lee, Jun-Young (Dept. of Electrical Engineering, Daejin University) ;
  • Kim, Cheol-Min (Dept. of Electrical Engineering, Daejin University) ;
  • Kim, Jong-Soo (Dept. of Electrical Engineering, Daejin University)
  • Received : 2021.05.27
  • Accepted : 2021.08.17
  • Published : 2021.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, phase shedding algorithm that measuring to converter's input and output parameter during real-time to control the number of driving converters is proposed. The proposed phase-shedding algorithm drives the DVR power supply with the optimal converter's combination without the loss calculation curve and the lookup table in which the efficiency is measured in advance. The proposed algorithm was implemented through a digital controller and verified in a two-modular LLC converter with a single rated power of 60 Win a 120 W DVR power supply system. Experimental results are presented to prove the validity of the proposed algorithm.

Keywords

Acknowledgement

본 논문은 중소벤처기업부에서 지원하는 2018년도 산학연협력 기술개발사업(No. S2666365)의 연구수행으로 인한 결과물임을 밝힙니다.

References

  1. Personal Information Protection Committee, "Installation and operation of CCTV for public institutions," e-Country Indicators, May. 2021. [Online]. Available: https://www.index.go.kr/potal/main/EachDtlPageDetail.do?idx_cd=2855#quick_02.
  2. P. Zumel, C. Fernandez, A. de Castro, and O. Garcia, "Efficiency improvement in multiphase converter by changing dynamically the number of phases," in 2006 37th IEEE Power Electronics Specialists Conference, Jeju, Korea, pp. 1-6, 2006.
  3. J. T. Su and C. W. Liu, "A novel phase-shedding control scheme for improved light load efficiency of multiphase interleaved DC-DC converters," IEEE Transactions on Power Electronics, Vol. 28, No. 10, pp. 4742-4752, 2013. https://doi.org/10.1109/TPEL.2012.2233220
  4. S. H. Baek, "A phase shedding control algorithm for tracking maximum efficiency of 3-phase interleaved boost converter," M.S. dissertation, Department of Energy System Engineering, Sungkyunkwan University, Oct. 2016.
  5. J. Y. Lee, H. B. Kim, and J. S. Kim, "Real-time optimal operating point estimation method of phase shedding algorithm for improving light load efficiency," in 2020 Power Electronics Annual Conference, pp. 148-149, Nov. 2020.
  6. A. Costabeber, P. Mattavelli, and S. Saggini, "Digital time-optimal phase shedding in multiphase buck converters," IEEE Transactions on Power Electronics, Vol. 25, No. 9, pp. 2242-2247, 2010. https://doi.org/10.1109/TPEL.2010.2049374
  7. C. Yang, T. Liang, K. Chen, J. Li, and J. Lee, "Loss analysis of half-bridge LLC resonant converter," in 2013 1st International Future Energy Electronics Conference (IFEEC), Tainan, Taiwan, pp. 155-160, 2013.
  8. T. Jun et al., "Loss analysis and optimization design of half-bridge LLC resonant converter," in 2019 The 5th International Conference on Electrical Engineering, Control and Robotics (EECR 2019), Guangzhou, China, Jan. 2019.
  9. Anders Lind, "LLC converter design note," Infineon Technologies, AN 2013-03, V1.0, Mar. 2013.