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

The Korean Institute of Power Electronics (전력전자학회)
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A Seamless Transfer Method of Bidirectional DC-DC Converter for ESS in DC Micro-grids

DC 마이크로그리드에서 에너지 저장장치를 위한 양방향 DC-DC컨버터의 무순단 절체 제어기법

  • Kwon, Min-Ho (Dept. of Electrical & Information Eng., Seoul Nat'l Univ. of Science and Technology) ;
  • Park, Jung-Sung (Dept. of New Energy Eng., Seoul Nat'l Univ. of Science and Technology) ;
  • Choi, Se-Wan (Dept. of Electrical & Information Eng., Seoul Nat'l Univ. of Science and Technology)
  • Received : 2013.12.26
  • Accepted : 2014.02.21
  • Published : 2014.04.20
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Abstract

In DC micro-grid system energy storage systems (ESS) are responsible for storing energy and balancing power. Also, control target of the bidirectional DC-DC converter(BDC) for ESS should be changed depending on the operating mode. During the grid connected mode, the BDC controls the battery current or voltage. When a grid fault occurs, the BDC should change the control target to regulate the DC-bus. The BDC with conventional control method may experience large transient state during the mode change. This paper proposes a control method of BDC for ESS. The proposed control method is able to provide autonomous and seamless mode transfer by a variable current limiter. To validate the proposed concept, simulation results using PSIM and experimental results from a 2kW prototype are provided.

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References

  1. P. Chiradeja and R. Ramakumar, "An approach to quantify the technical benefits of distributed generation," IEEE Trans. Energy Convers., vol. 19, no. 4, pp. 764-773, Dec. 2004. https://doi.org/10.1109/TEC.2004.827704
  2. P. Chiradeja, "Benefit of distributed generation: A line loss reduction analysis," in Proc. Transmiss. Distrib. Conf. Exhib., Asia. Pac., 2005, pp. 1.5.
  3. H. Zhou, T. Bhattacharya, D. Tran, T. S. T. Siew and A. M. Khambadkone, "Composite Energy Storage System Involving Battery and Ultracapacitor With Dynamic Energy Management in Microgrid Applications," IEEE Trans. Power Electron., Vol. 26, No. 3, pp. 923-930, Mar. 2011. https://doi.org/10.1109/TPEL.2010.2095040
  4. J. Lee, H. Kim, B. Han, Y. Jeong, H. Yang and H. Cha, "DC Micro-Grid Operational Analysis with a Detailed Simulation Model for Distributed Generation," Journal of Power Electron., Vol. 11, No. 3, May 2011.
  5. H. Kakigano, Y. Miura, T. Ise, and R. Uchida, "DC micro-grid for super high quality distribution -system configuration and control of distributed generations and energy storage devices-," in Proc. IEEE Power Electron. Spec. Conf. (PESC'06) , pp. 1-7.
  6. K. Yukita, K. Ban, Y. Goto, K. Ichiyanagi, K. Hirose, T. Ushirokawa, Y.Okui and H. Takabayashi, "Power Supply System of DC/AC Micro Grid System," in Proc. 8th Int. Conf. Power Electron., ECCE Asia, Jeju Korea, May 30 - Jun. 3, 2011, pp. 228-234.
  7. H. Kakigano, Y. Miura, and T. Ise, "Configuration and control of a DC microgrid for residential houses," in Proc. IEEE Transmis. Distrib. Conf. Expo.: Asia Pacific, Oct. 2009, pp. 1-4.
  8. K. Sun, L. Zhang, Y. Xing and J. Guerrero, "A distributed control strategy based on DC bus signaling for modular photovoltaic generation systems with battery energy storage," IEEE Trans. Power Electron., vol. 26, no. 10, pp. 3032-3045, Oct. 2011. https://doi.org/10.1109/TPEL.2011.2127488
  9. T. Han, J. Lee, H. Kim and B. Han, "Optimized Design and Coordinated Control for Stand-alone DC Micro-grid," The Transactions of the Korean Institute of Power Electronics, Vol. 18, No. 1, Feb. 2013. https://doi.org/10.6113/TKPE.2013.18.1.63
  10. X. she, S. Lukic and A. Q. Huang, "DC zonal micro-grid architecture and control," in Proc. IECON, 2010, pp. 2982-2987.
  11. S. Choi, J. Park, M. Kwon, "System for controlling bidirectional converter" Korean Patent pending 10-2013-0092123, Aug. 2. 2013.
  12. C. Bohn, and D. P. Atherton, "An analysis package comparing PID anti-windup strategies," IEEE Control Syst. Mag., vol. 15, no. 2, pp. 34-40, Apr. 1995.

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