Frequency Domain Analysis of Dual Active Bridge Converter Considering All Power Losses Elements

Document Type : Research Paper

Authors

1 Faculty of Electrical and Computer Engineering, Semnan University, Semnan, Iran

2 Faculty of Electrical and Computer Engineering, Semnan University, Semnan, Iran.

Abstract

Modeling of power electronic converters plays a significant role in examining the behaviour and designing control systems. Dual Active Bridge (DAB) converters, due to many advantages such as inherent soft-switching, bidirectional power transfer, and higher energy density, are used in various applications such as SST transformers, smart grids, and electric vehicle battery chargers. In this paper, a new reduced-order model for a DAB converter is introduced by modeling nonlinear elements such as semiconductor devices and transformers. By considering all power loss elements, and input/output filters, the modeling becomes more realistic. The performance and accuracy of the proposed model is improved compared to conventional reduced-order methods.  Small signal modeling for the DAB converter is curried out and control transfer functions of the system are investigated. Additionally, frequency response analysis of the proposed model under different conditions is compared with the detailed model of the DAB converter containing nonlinear elements implemented in PLECS software. Simulation results demonstrate a satisfactory accuracy of the proposed model in assessing the performance and dynamic behavior of the DAB converter under various operating conditions.

Keywords

Main Subjects


  • Li, G. Xu, D. Sha, Y. Liu, Y. Sun, and M. Su, "Review of Dual Active Bridge Converters with Topological Modifications," IEEE Transactions on Power Electronics, 2023.
  • A. Hannan, P. J. Ker, M. S. H. Lipu, Z. H. Choi, M. S. A. Rahman, K. M. Muttaqi, et al., "State of the art of solid-state transformers: Advanced topologies, implementation issues, recent progress and improvements," Ieee Access, vol. 8, pp. 19113-19132, 2020.
  • Shi, R. Li, Y. Xue, and H. Li, "Optimized operation of current-fed dual active bridge DC–DC converter for PV applications," IEEE Transactions on Industrial Electronics, vol. 62, pp. 6986-6995, 2015.
  • P. Engel, N. Soltau, H. Stagge, and R. W. De Doncker, "Dynamic and balanced control of three-phase high-power dual-active bridge DC–DC converters in DC-grid applications," IEEE Transactions on Power Electronics, vol. 28, pp. 1880-1889, 2012.
  • A. Herrera‐Jaramillo, D. Gonzalez Montoya, E. E. Henao‐Bravo, C. A. Ramos‐Paja, and A. J. Saavedra‐Montes, "Systematic analysis of control techniques for the dual active bridge converter in photovoltaic applications," International Journal of Circuit Theory and Applications, vol. 49, pp. 3031-3052, 2021.
  • Xue, Z. Shen, D. Boroyevich, P. Mattavelli, and D. Diaz, "Dual active bridge-based battery charger for plug-in hybrid electric vehicle with charging current containing low frequency ripple," IEEE Transactions on Power Electronics, vol. 30, pp. 7299-7307, 2015.
  • Krismer and J. W. Kolar, "Efficiency-optimized high-current dual active bridge converter for automotive applications," IEEE Transactions on Industrial Electronics, vol. 59, pp. 2745-2760, 2011.
  • A. Assadi, H. Matsumoto, M. Moshirvaziri, M. Nasr, M. S. Zaman, and O. Trescases, "Active saturation mitigation in high-density dual-active-bridge DC–DC converter for on-board EV charger applications," IEEE Transactions on Power Electronics, vol. 35, pp. 4376-4387, 2019.
  • Jiang, Y. Sun, Y. Li, Z. Tang, F. Liu, Y. Yang, et al., "Integrated Optimization of Dual-Active-Bridge DC-DC Converter with ZVS for Battery Charging Applications," IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021.
  • Zhao, Q. Song, W. Liu, and Y. Sun, "Overview of dual-active-bridge isolated bidirectional DC–DC converter for high-frequency-link power-conversion system," IEEE Transactions on power electronics, vol. 29, pp. 4091-4106, 2013.
  • Hou and Y. W. Li, "Overview and comparison of modulation and control strategies for a nonresonant single-phase dual-active-bridge DC–DC converter," IEEE Transactions on Power Electronics, vol. 35, pp. 3148-3172, 2019.
  • Wu, C. W. de Silva, and W. G. Dunford, "Stability analysis of isolated bidirectional dual active full-bridge DC–DC converter with triple phase-shift control," IEEE Transactions on Power Electronics, vol. 27, pp. 2007-2017, 2011.
  • Bai, Z. Nie, and C. C. Mi, "Experimental comparison of traditional phase-shift, dual-phase-shift, and model-based control of isolated bidirectional DC–DC converters," IEEE Transactions on Power Electronics, vol. 25, pp. 1444-1449, 2009.
  • R. R. Alonso, J. Sebastian, D. G. Lamar, M. M. Hernando, and A. Vazquez, "An overall study of a Dual Active Bridge for bidirectional DC/DC conversion," in 2010 IEEE Energy Conversion Congress and Exposition, 2010, pp. 1129-1135.
  • Bai, C. Mi, C. Wang, and S. Gargies, "The dynamic model and hybrid phase-shift control of a dual-active-bridge converter," in 2008 34th annual conference of IEEE industrial electronics, 2008, pp. 2840-2845.
  • R. Sanders, J. M. Noworolski, X. Z. Liu, and G. C. Verghese, "Generalized averaging method for power conversion circuits," IEEE Transactions on power Electronics, vol. 6, pp. 251-259, 1991.
  • Qin and J. W. Kimball, "Generalized average modeling of dual active bridge DC–DC converter," IEEE Transactions on power electronics, vol. 27, pp. 2078-2084, 2011.
  • Zhao, S. D. Round, and J. W. Kolar, "Full-order averaging modelling of zero-voltage-switching phase-shift bidirectional DC–DC converters," IET Power Electronics, vol. 3, pp. 400-410, 2010.
  • Shi, W. Lei, Z. Li, J. Huang, Y. Cui, and Y. Wang, "Bilinear discrete-time modeling and stability analysis of the digitally controlled dual active bridge converter," IEEE Transactions on Power Electronics, vol. 32, pp. 8787-8799, 2016.
  • Krismer and J. W. Kolar, "Accurate small-signal model for the digital control of an automotive bidirectional dual active bridge," IEEE transactions on power electronics, vol. 24, pp. 2756-2768, 2009.
  • C. Verghese, M. E. Elbuluk, and J. G. Kassakian, "A general approach to sampled-data modeling for power electronic circuits," IEEE Transactions on Power Electronics, pp. 76-89, 1986.
  • Wang, C. Liu, and L. Guo, "Modeling and simulation of full-bridge series resonant converter based on generalized state space averaging," Applied Mechanics and Materials, vol. 347, pp. 1828-1832, 2013.
  • Shao, L. Chen, Z. Shan, F. Gao, H. Chen, D. Sha, et al., "Modeling and advanced control of dual-active-bridge DC–DC converters: A review," IEEE Transactions on Power Electronics, vol. 37, pp. 1524-1547, 2021.
  • He, Y. Chen, J. Lin, J. Chen, L. Cheng, and Y. Wang, "Review of Modeling, Modulation, and Control Strategies for the Dual-Active-Bridge DC/DC Converter," Energies, vol. 16, p. 6646, 2023.
  • Costinett, "Reduced order discrete time modeling of ZVS transition dynamics in the dual active bridge converter," in 2015 IEEE Applied Power Electronics Conference and Exposition (APEC), 2015, pp. 365-370.
  • Farhangi and H. A. Toliyat, "Piecewise linear model for snubberless dual active bridge commutation," IEEE Transactions on Industry Applications, vol. 51, pp. 4072-4078, 2015.
  • Bai, Z. Nie, and C. C. Mi, "Experimental comparison of traditional phase-shift, dual-phase-shift, and model-based control of isolated bidirectional DC–DC converters," IEEE Transactions on Power Electronics, vol. 25, pp. 1444-1449, 2010.
  • Li and Y.-F. Li, "An optimized phase-shift modulation for fast transient response in a dual-active-bridge converter," IEEE Transactions on Power Electronics, vol. 29, pp. 2661-2665, 2013.
  • W. Erickson and D. Maksimovic, Fundamentals of power electronics: Springer Science & Business Media, 2007.
  • Zhang, Z. Shan, and J. Jatskevich, "Large-and small-signal average-value modeling of dual-active-bridge DC–DC converter considering power losses," IEEE Transactions on Power Electronics, vol. 32, pp. 1964-1974, 2016.
  • Wang, X. Chen, C. Tong, P. Jia, and C. Wen, "Large-and small-signal average-value modeling of dual-active-bridge DC–DC converter with triple-phase-shift control," IEEE Transactions on Power Electronics, vol. 36, pp. 9237-9250, 2021.
  • Graovac, M. Purschel, and A. Kiep, "MOSFET power losses calculation using the data-sheet parameters," Infineon application note, vol. 1, pp. 1-23, 2006.