The Transactions of the Korean Institute of Electrical Engineers P (전기학회논문지P)

The Korean Institute of Electrical Engineers (대한전기학회)
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Simulation of DC Microgrid with PV Generation

태양광 발전이 연계된 DC 마이크로 그리드의 시뮬레이션

  • Park, Chul-Won (Dept. of Electrical Engineering, Gangneung-Wonju National University)
  • Received : 2017.11.14
  • Accepted : 2017.11.29
  • Published : 2017.12.01
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Abstract

In recent years, there is an increasing demand for DC microgrid because the digital load due to DC increases and the efficiency of the distribution system increases due to loss of conversion losses and conversion stages due to reactive power compared to AC distribution. Currently, with the support of the KEPRI, the development of an electronic large-capacity circuit breaker for DC distribution protection, which has been underway since 2016, is proceeding. In this paper, as a part of this project, we modeled the DC microgrid connected with PV using PSCAD. The converter station, AC/DC converter control, PV and MPPT controller are designed. In order to evaluate the performance of the modeled DC microgrid, it is examined whether the voltage is adjusted according to the load variation.

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References

  1. S. H. Lee, "Present and Future of Energy Industry," 2017 KIEE PES Autumn Conference Special Session, pp. 55-66, November 2017.
  2. Sushanta Kumar Mahapatra, Keshab Chandra RathaJ.Y. Kim, "Current Status and Effective Implementation of Low Voltage Direct Current Distribution Technology," Journal of International Development, vol. 29, no. 1, pp. 147-154, Wiley, January 2017. https://doi.org/10.1002/jid.3262
  3. C. H. Noh, G. H. Gwon, C. H. Kim, "A Study on Transient Characteristics in Low Voltage DC Distribution System resulted from the Operation of Protective Device in AC Side," Journal of KIIEE, vol. 31, no. 4, pp. 21-28, April 2017.
  4. J. H. Lee, H. D. Jung, et al., "DC distribution development status and plan of KEPCO for introduction of high-efficiency distribution networks in the future," KIEE Summer Conference, pp. 313-314, July 2016.
  5. KEPRI, "Establishment of Distributed Power and Load Linkage System for DC-based Book Area," Request for Service Proposal, pp. 1-65, April 2016.
  6. B. M. Han, J. G. Lee, Y. S. Lee, J. H. Kim, "Operational Characteristic Analysis of Bipolar DC Distribution System using Hardware Simulator," Trans. KIEE, vol. 63, no. 4, pp. 476-483, April 2014.
  7. D. J. Won, B. M. Han, Y. S. Lee, H. J. Lee, "Real-time Operation Analysis for Stand-alone Microgrid using RTDS," Trans. KIEE, vol. 63, no. 10, pp. 1393-1401, October 2014.
  8. ENTEC, "Development of High-speed Circuit Breakers for Low Voltage DC Distribution on New and Renewable Energy Interconnection," Proposal, pp. 1-160, June 2016.
  9. J. W. Park, J. I. Song, C. H. Noh, G. H. Gwon, J. Han, C. H. Kim, "A Study on Applicability of Emitter Turn Off Thyristor based on DC Circuit Breaker in Low Voltage DC Distribution System," 2016 KIIEE Autumn Conference, p. 68, NOV. 2016.
  10. C. H. Noh, G. H. Gwon, C. H. Kim, "A Study on Transient Characteristics in Low Voltage DC Distribution System Resulted from the Operation of Protective Device in AC Side," Journal of KIIEE, vol. 31, no. 4, pp. 21-28, April 2017.
  11. Jisung Ho, "A Study on the Protection Cooperation of Distributed Power Consumers," Korea University of Technology Education, PhD. Thesis, pp. 1-159, August 2014.
  12. Pasi Salonen, "Protection scheme for an LVDC distribution system," CIRED Conference Paper 0891, pp. 1-4, June 2009.
  13. ABB, "ABB circuit-breakers for direct current applications," pp. 1-56, SEP. 2007.
  14. Jin Yang et al., "Multiterminal DC Wind Farm Collection Grid Internet Fault Analysis and Protection Design," IEEE Transactions on Power Delivery, vol. 25, no. 4, pp. 2308-2318, October 2010. https://doi.org/10.1109/TPWRD.2010.2044813
  15. M. M. Xu et al., "A Prony-based Method of Locating Short-Circuit Fault in DC Distribution System," 2nd IET Renewable Power Generation Conference, pp. 1-4, 2013.
  16. ABB, "Faults in LVDC microgrids with front-end converters," ABB technical application papers, no. 14, pp. 1-65, 2015.
  17. C. H. Noh, G. H. Gwon, J. I. Song, Joon Han, Y. S. Oh, C. H. Kim, "An Analysis on Fault Response Characteristics in Low Voltage DC Distribution System," Trans. KIEE, vol. 65, no. 6, pp. 911-917, June 2016.
  18. S. H. Kim, G. W. Choi, J. F. Moon, T. H. Kim, J. Y. Kim, "A Study on the Fault Analysis of the LVDC using PSCAD/EMTDCM," Trans. KIEE, vol. 65P, no. 3, pp. 219-223, September 2016.
  19. K. M. Lee, "Modeling and Transient Analysis of Low Voltage Direct Current Grid using PSCAD," GWN University Master's Thesis, pp. 1-55, June 2017.
  20. K. M. Lee, C. W. Park, "Fault Analysis of LVDC $\pm$750V Grid using PSCAD Software," Journal of KIIEE, vol. 31, no. 10, pp. 95-101, October 2017.