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Protective Insulation Monitoring Device in IT Earth Systems

IT접지방식의 보호를 위한 활선절연저항 감시기

  • Kim, Yong-Jung (Dept. of Electrical, Electronic and Control Eng., Kongju National University) ;
  • Kim, Hyosung (Div. of Electrical, Electronic and Control Eng., Kongju National University)
  • Received : 2014.12.10
  • Accepted : 2015.03.31
  • Published : 2015.06.20

Abstract

With the increasing popularity of renewable generation systems and the advancement of power electronics, DC distribution systems have recently received considerable research attention. DC distribution has numerous advantages, including reliability, power quality, and efficiency. Owing to these advantages, DC distribution has been applied to data centers and power quality-sensitive electronic load conditions. Because grounding electrodes in DC are much more susceptible to corrosion than in AC, the IT system defined in IEC Standard 60364 may be a good candidate for an earthing method for DC distribution systems. In addition, IEC Standard 61557 specifies the requirements for insulation monitoring devices (IMD) for protection of the IT system, which continuously monitors the insulation resistances between the power lines and the earth. This paper discusses the development and evaluation of IMD to promote the reliability of distribution systems and increase safety of humans and facilities.

Keywords

References

  1. S. Ji, D. Reusch, and F. C. Lee, "High-frequency high power density 3-D integrated gallium-nitride-based point of load module design," IEEE Transactions on Power Electronics, Vol. 28, No 9, pp. 4216-4226, Sep. 2013. https://doi.org/10.1109/TPEL.2012.2235859
  2. J. Delaine, P. Jeannin, D. Frey, and K. Guepratted, "High frequency DC-DC converter using GaN device," in Proc. IEEE APEC, pp. 1754-1761, Feb. 2012.
  3. Y. Zhang, M. Rodriguez, D. Maksimovic, "High frequency synchronous buck converter using GaN-on-SiC HEMTs," in Proc. IEEE ECCE, pp. 1279-1283, Sep. 2013.
  4. W. Saito, T. Nitta, Y. Kakiuchi, Y. Saito, K. Tsuda, I. Omura, and M. Yamaguchi, "A 120-W boost converter operation using a high-voltage GaN-HEMT," IEEE Electron. Device Lett., Vol. 29, No. 1, pp. 8-10, Jan. 2008. https://doi.org/10.1109/LED.2007.910796
  5. D. Costinett, H. Nguyen, R. Zane, and D. Maksimovic, "GaN-FET based dual active bridge DC-DC converter," in Proc. IEEE APEC, pp. 1425-1432, Mar. 2011.
  6. A. Hariya, K. Matsuura, H. Yanagi, S. Tomioka, Y. Ishizuka, and T. Ninomiya, "5MHz PWM-controlled current-mode resonant DC-DC converter with GaN-FETs," in Proc. IEEE APEC, pp. 1426-1432. Mar. 2014.
  7. J. Delaine, P. O. Jeannin, D. Frey and K. Guepratte, "Improvement of GaN transistors working conditions to increase efficiency of A 100W DC-DC converter," in Proc. IEEE APEC, pp. 656-663, Mar. 2013.
  8. B. Wang, N. Tipirneni, M. Riva, A. Monti, G. Simin, and E. Santi, "An efficient, high-frequency drive circuit for GaN power HFETs," IEEE Trans. Ind. Appl., Vol. 45, No. 2, pp. 843-853, Mar./Apr. 2009. https://doi.org/10.1109/TIA.2009.2013578
  9. Z. Liu, X. Huang, M. Mu, Y. Yang, F. C. Lee, and Q. Li, "Design and evaluation of GaN-based dual-phase interleaved MHz critical mode PFC converter," in Proc. IEEE ECCE, pp. 611-616, Sep. 2014.
  10. L. Huber, Y. Jang, and M. M. Jovanovic, "Performance evaluation of bridgeless PFC boost rectifiers," IEEE Trans. Power Electron., Vol. 23, No. 3, pp. 1381-1390, May 2008. https://doi.org/10.1109/TPEL.2008.921107
  11. B. Lu, R. Brown, M. Soldano, "Bridgeless PFC implementation using one cycle control technique," in Proc. IEEE APEC, pp. 812-817, Mar. 2005.
  12. J. W. Shin, S. J. Choi, and B. H. Cho, "High-efficiency bridgeless flyback rectifier with bidirectional switch and dual output windings," IEEE Transactions on Power Electronics, Vol. 29, No 9, pp. 4752-4762, Sep. 2014. https://doi.org/10.1109/TPEL.2013.2283073
  13. Y. T. Jang, and M. M. Jovanovic, "A bridgeless PFC boost rectifier with optimized magnetic utilization," IEEE Transactions on Power Electronics, Vol. 24, No 1, pp. 85-93, Jan. 2009. https://doi.org/10.1109/TPEL.2008.2006054
  14. Q. Li, M. A. E. Andersen and O. C. Thomsen, "Conduction losses and common mode EMI analysis on bridgeless power factor correction," in Proc. PEDS, pp. 1255-1260, 2009.
  15. F. Musavi, M. Edington, W. Eberle, and W. G. Dunford, "Evaluation and efficiency comparison of front end AC-DC plug-in hybrid charger topology," IEEE Trans. Smart Grid, Vol. 3, No. 1, pp. 413-421, Mar. 2012. https://doi.org/10.1109/TSG.2011.2166413
  16. B. Su, J. Zhang, and Z. Lu, "Totem-pole boost bridgeless PFC rectifier with simple zero-current detection and full-range ZVS operating at the boundary of DCM/CCM," IEEE Trans. Power Electron., Vol. 26, No. 2, pp. 427-435, Feb. 2011. https://doi.org/10.1109/TPEL.2010.2059046
  17. D. M. Van de Sype, K. De Gusseme, A. P. M. Van den Bossche, and J. A. Melkebeek, "Duty-ratio feedforward for digitally controlled boost PFC converters," IEEE Trans. Ind. Electron., Vol. 52, No. 1, pp. 108-115, Feb. 2005. https://doi.org/10.1109/TIE.2004.841127