DOI QR코드

DOI QR Code

다중공진회로를 이용한 고효율 DC-DC 컨버터

High-Efficiency DC-DC Converter using the Multi-Resonant-Circuit

  • Jeong, Gang-Youl (Department of Electronic Information Engineering, Soonchunhyang University)
  • 투고 : 2021.02.22
  • 심사 : 2021.03.31
  • 발행 : 2021.03.31

초록

본 논문에서는 다중공진회로를 이용한 고효율 DC-DC 컨버터를 제안한다. 제안한 컨버터는 하프브리지 전력구조이며 컨버터의 고효율화를 위해 2개의 인덕터(LL)와 1개의 커패시터(C)로 구성된 다중공진회로를 이용한다. 이 다중공진회로는 동작모드에 따라, 각각의 공진주파수를 가진 직렬회로 형태의 공진회로를 각각 형성한다. 본 논문에서는 먼저, 동작모드와 정상상태 기본파 근사 모델링에 의해 제안한 컨버터의 동작원리를 설명한다. 그다음 이에 근거하여 제안한 컨버터의 설계예시를 보인다. 그리고 설계된 회로 파라미터에 의해 제작된 프로토타입 컨버터의 실험결과를 통하여 제안한 컨버터의 고효율 DC-DC 전력변환 동작특성을 입증한다.

This paper presents the high-efficiency DC-DC converter using the multi-resonant-circuit. The proposed converter has the power topology of half-bridge and utilizes the multi-resonant-circuit that is composed of 2 inductors (LL) and 1 capacitor (C) to achieve high-efficiency. The multi-resonant-circuit forms each resonant circuit of series circuit type with each resonant frequency, according to the operation modes. This paper first describes the operation pirinciples of proposed converter by the operation modes and steady-state fundamental approximation modelling. Then it shows a design example of the proposed converter based on the principles. And it is validated that the proposed converter has the operation characteristics of high-efficiency DC-DC power conversion through the experimental results of prototype converter implemented by the designed circuit parameters.

키워드

참고문헌

  1. R. Oruganti, J. Yang and F. C. Lee, "Implementation of Optimal Trajectory Control of Series Resonant Converters," in Proc. of 1987 IEEE Power Electronics Specialists Conference, pp. 451-459, 1987. DOI: 10.1109/63.17950
  2. R. L. Steigerwald, "A Comparison of Half-Bridge Resonant Converter Topologies," IEEE Trans. Power Electron., vol.3, no.2, pp.174-182, 1988. DOI: 10.1109/APEC.1987.7067142
  3. Y. G. Kang, A. K. Upadhyay and D. L. Stephens, "Analysis and Design of a Half-Bridge Parallel Resonant Converter Operating Above Resonance," IEEE Trans. Ind. Appl., vol. 27, no.2, pp.386-395, 1991. https://doi.org/10.1109/28.73630
  4. B. Yang, F. C. Lee, A. J. Zhang and G. Huang, "LLC Resonant Converter for Front End DC/DC Conversion," in Proc. of 17th Annual IEEE Applied Power Electronics Conference and Exposition, pp.1108-1112, 2002. DOI: 10.1109/APEC.2002.989382
  5. B. Yang, R. Chen and F. C. Lee, "Integrate Magnetic for LLC Resonant Converter," in Proc. of 17th Annual IEEE Applied Power Electronics Conference and Exposition, pp.346-351, 2002. DOI: 10.1109/APEC.2002.989269
  6. Application Note (AN-151), Half-Bridge LLC Resonant Converter Design FSFR-Series Fairchild Power Switch (FPSTM), www.Fairchildsemi.com, 2007.
  7. B. Lu, W. Liu, Y. Liang, F. C. Lee and J. D. van Wyk, "Optimal Design Methodology for LLC Resonant Converter," in Proc. of 21st Annual IEEE Applied Power Electronics Conference and Exposition, pp.533-538, 2006. DOI: 10.1109/APEC.2006.1620590
  8. J. H. Jung and J. G. Kwon, "Theoretical Analysis and Optimal Design Methodology for LLC Resonant Converter," in Proc. of 2007 European Power Electronics and Application EPE'07, pp. 1-10, 2007. DOI: 10.1109/EPE.2007.4417639
  9. C. Adragna, S. D. Simone and C. Spini, "A Design Methodology for LLC Resonant Converters Based on Inspection of Resonant Tank Currents," in Proc. of 23rd Annual IEEE Applied Power Electronics Conference and Exposition, pp.1361-1367, 2008. DOI: 10.1109/APEC.2008.4522901
  10. R. Liu and C. Q. Lee, "The LLC-type series resonant converter-variable switching frequency control," in Proc. on the 1989 32nd Midwest Symposium on Circuits and Systems, pp.509-512, 1989. DOI: 10.1109/ICAEE.2014.6838481
  11. F. Canales, P. Barbosa and F. C. Lee, "A Wide Input Voltage and Load Output Variations Fixed-Frequency ZVS DC/DC LLC Resonant Converter for High-Power Application," in Proc. of 2002 37th IAS Annual Meeting of Industry Applications Conference, pp.2306-2313, 2002. DOI:10.1109/IAS.2002.1042768
  12. J. F. Lazar and R. Martinelli, "Steady-State Analysis of the LLC Series Resonant Converter," in Proc. of 16th Annual IEEE Applied Power Electronics Conference and Exposition, pp.728-735, 2001. DOI: 10.1109/APEC.2001.912451
  13. Y. Gu, L. Hang, U. Chen, Z. Lu, Z. Qian and J. Li, "A Simple Structure of LLC Resonant DC-DC Converter for Multi-Output Applications," in Proc. of 20th Annual IEEE Applied Power Electronics Conference and Exposition, pp.1485-1490, 2005. DOI: 10.1109/APEC.2005.1453229
  14. TDK company, TDK product center, https://product.tdk.com