DOI QR코드

DOI QR Code

Hybrid Control Strategy of Phase-Shifted Full-Bridge LLC Converter Based on Digital Direct Phase-Shift Control

  • Guo, Bing (Faculty of Information Technology, Beijing University of Technology) ;
  • Zhang, Yiming (Faculty of Information Technology, Beijing University of Technology) ;
  • Zhang, Jialin (Faculty of Information Technology, Beijing University of Technology) ;
  • Gao, Junxia (Faculty of Information Technology, Beijing University of Technology)
  • 투고 : 2017.10.10
  • 심사 : 2018.02.06
  • 발행 : 2018.05.20

초록

A digital direct phase-shift control (DDPSC) method based on the phase-shifted full-bridge LLC (PSFB-LLC) converter is presented. This work combines DDPSC with the conventional linear control to obtain a hybrid control strategy that has the advantages of linear control and DDPSC control. The strategy is easy to realize and has good dynamic responses. The PSFB-LLC circuit structure is simple and works in the fixed frequency mode, which is beneficial to magnetic component design; it can realize the ZVS of the switch and the ZCS of the rectifier diode in a wide load range. In this work, the PSFB-LLC converter resonator is analyzed in detail, and the concrete realization scheme of the hybrid control strategy is provided by analyzing the state-plane trajectory and the time-domain model. Finally, a 3 kW prototype is developed, and the feasibility and effectiveness of the DDPSC controller and the hybrid strategy are verified by experimental results.

키워드

참고문헌

  1. D. Fountain, R. Smith, T. Payne, and J. Lemieux, "A helicopter time-domain EM system applied to mineral exploration: System and data," First Break, Vol. 23, No. 1, pp. 73-78, Jan. 2005.
  2. V. Sapia, G. A. Oldenborger, A. Viezzoli, and M. Marchetti, "Incorporating ancillary data into the inversion of airborne time-domain electromagnetic data for hydrogeological applications," J. Applied Geophysics, Vol. 104, No.5, pp. 35-43, May 2014. https://doi.org/10.1016/j.jappgeo.2014.02.009
  3. D. D. Massa, G. Florio, and A. Viezzoli, "Adaptive sampling of AEM transients," J. Applied Geophysics, Vol. 125, pp. 45-55, Feb. 2016. https://doi.org/10.1016/j.jappgeo.2016.01.002
  4. S. Mul, R. Miller, H. Carey, and R. Lockwood, "Review of three airborne EM systems," in Proc. ASEG, pp. 26-29, 2012.
  5. S. J. Liang, L. K. Zhang, X. F. Cao, and Q. K. Liu, "Research progress of the time-domain airborne electromagnetic method," Geology and Exploration, Vol. 50, No. 4, pp. 0735-0740, Apr. 2014. (in Chinese)
  6. C. C. Yin, B. Zhang, Y. H. Liu, X. Y. Ren, Y. F. Qi, and Y. F. Pei, "Review on airborne EM technology and developments," Chinese J. Geophysics, Vol. 58, No. 8, pp. 2637-2653, Aug. 2015.
  7. T. Chen, G. Hodges, and P. Miles, "MULTIPULSE-high resolution and high power in one TDEM system," Exploration Geophysics, Vol. 46, No. 1, pp.49-57, Aug. 2015. https://doi.org/10.1071/EG14027
  8. Z. H. Fu, J. L. Zhao, L. W. Zhou, Q. Luo, and X. Su, "WTEM fast turn-off transient electromagnetic detection system," Chinese J. Scientific Instrum. Vol. 29, No. 5, pp. 933-936, May 2008. (in Chinese)
  9. J. Lin, Y. Yang, X. Y. Hu, and S. L. Wang, "Transmitting waveform control technology for transient electromagnetic method based on inductive load," J. Jilin Univ. - Eng. Technol. Edition, Vol. 46, No. 5, pp. 1718-1724. Sep. 2016.
  10. B. B. Lin and T. Y. Shiau, "Analysis and implementation of a new ZVS DC converter for medium power application," J. Electr. Eng. Technol., Vol. 9, No. 4, pp. 1296-1308, Jul. 2014. https://doi.org/10.5370/JEET.2014.9.4.1296
  11. M. Ryu, H. Kim, J. Baek, H. Kim, and J. Jung, "Effective test bed of 380-V DC distribution system using isolated power converters," IEEE Trans. Power Electron., Vol. 62, No. 7, pp. 4525-4536, Jul. 2015.
  12. S. Yu, Z. X. Han, C. Y. Sun, Z. Zhu, J. Jiang, and Y. Zhao, "A half sine electromagnetic launching system with series resonant type," J. Central South Univ. - Sci. Technol., Vol. 48, No. 3, pp. 729-734, Mar. 2017.
  13. C. C. Hua, Y. H. Fang, and C. W. Lin. "LLC resonant converter for electric vehicle battery chargers," IET Power Electron., Vol. 9, No. 12, pp. 2369-2376, Oct. 2016. https://doi.org/10.1049/iet-pel.2016.0066
  14. S. W. Kang and B. H. Cho, "Digitally implemented charge control for LLC resonant converters," IEEE Trans. Ind. Electron., Vol. 64, No. 8, pp. 6159-6168, Aug. 2017. https://doi.org/10.1109/TIE.2017.2682801
  15. H. P. Park and J. H. Jung, "Power stage and feedback loop design for LLC resonant converter in high-switching-frequency operation," IEEE Trans. Power Electron., Vol. 32, No. 10, pp.7770-7782, Oct. 2017. https://doi.org/10.1109/TPEL.2016.2635261
  16. J. Li and X. Ruan, "Hybrid control strategy of full bridge LLC converter," Trans. China Electrotechnical Society, Vol. 28, No. 4, pp.72-79, Nov. 2013.
  17. H. Wang and Z. Li, "A PWM LLC type resonant converter adapted to wide output range in PEV charging applications," IEEE Trans. Power Electron., Vol.33, No. 5, pp. 3791-3801, May 2018. https://doi.org/10.1109/TPEL.2017.2713815
  18. S. M. S. Shakib and S. Mekhilef, "A frequency adaptive phase shift modulation control based LLC series resonant converter for wide input voltage applications," IEEE Trans. Power Electron., Vol. 32, No. 11, pp. 8360-8370, Nov. 2017. https://doi.org/10.1109/TPEL.2016.2643006
  19. H. Wu, T. Mu, X. Gao, and Y. Xing, "A secondary-side phase-shift-controlled LLC resonant converter with reduced conduction loss at normal operation for Hold-Up time compensation application," IEEE Trans. Power Electron., Vol. 30, No. 10, pp. 5352-5357, Oct. 2015. https://doi.org/10.1109/TPEL.2015.2418786
  20. X. Sun, Y. Shen, W. Li, and H. Wu, "A PWM and PFM hybrid modulated three-port converter for a standalone PV/battery power system," IEEE J. Emerg. Sel. Topics Power Electron., Vol. 3, No. 4, pp. 984-1000, Dec. 2015. https://doi.org/10.1109/JESTPE.2015.2424718
  21. X. Sun, X. Li, Y. Shen, B. Wang, and X. Guo, "Dual-bridge LLC resonant converter with fixed-frequency PWM control for wide input applications," IEEE Trans. Power Electron., Vol. 32, No. 1, pp. 69-80, Jan. 2017. https://doi.org/10.1109/TPEL.2016.2530748
  22. Z. Lü, X. Yan, and L. Sun, "A L-LLC resonant bidirectional DC-DC converter based on hybrid control of variable frequency and phase shift," Trans. China Electrotechnical Society, Vol. 32, No. 4, pp. 12-24, Feb. 2017.
  23. W. Feng, F. C. Lee, and P. Mattavelli, "Simplified optimal trajectory control (SOTC) for LLC resonant converters," IEEE Trans. Power Electron., Vol. 28, No. 5, pp. 2415-2426, May 2013. https://doi.org/10.1109/TPEL.2012.2212213
  24. C. Fei, F. C. Lee, and Q. Li, "Multi-step simplified optimal trajectory control (SOTC) for fast transient response of high frequency LLC converters," in Proc. ECCE, pp. 2064-2071, 2015.
  25. X. Fang, H. Hu, Z. Shen, and I. Batarseh, "Operation mode analysis and peak gain approximation of the LLC resonant converter," IEEE Trans. Power Electron., Vol. 27, No. 4, pp. 1985-1995, Apr. 2012. https://doi.org/10.1109/TPEL.2011.2168545
  26. I. Batarseh, "State-plane approach for analysis of half-bridge parallel resonant converters," IEE Proc. Circuits, Devices Syst., Vol. 142, No. 3, pp. 200-204, 1995. https://doi.org/10.1049/ip-cds:19951890
  27. F. Li, X. You, Y. Li, and X. Guo, "Control strategy and parameter design of power conditioning unit integrated module for satellite applications," Trans. China Electrotechnical Society, Vol. 31, No. 8, pp. 34-42, Apr. 2016.
  28. C. C. Hua, Y. H. Fang, and C. W. Lin, "LLC resonant converter for electric vehicle battery chargers," IET Power Electron., Vol. 9, No. 12, pp. 2369-2376, Oct. 2016. https://doi.org/10.1049/iet-pel.2016.0066
  29. S. Adrian and S. Iqbal, "Implementation of INC MPPT and CV charging using LLC resonant converter for solar streetlight system," J. Circuits Syst. Comp., Vol. 27, No. 3, pp. 1850043, Jul. 2017.
  30. V. Bobal, J. Bohm, J. Fessl, and J. Machacek, "Digital self tuning controllers - Algorithms, implementation and applications," London U.K.: Springer-Verlag, chap. 5, 2005.