Fault current Characterization Based on Fuzzy Algorithm for DOCR Application

DOI: 10.4236/epe.2013.54B178   PDF   HTML     3,990 Downloads   4,917 Views   Citations


Penetration of distribution generation (DG) into power system might disturb the existing fault diagnosis system. The detection of fault, fault classification, and random changes of direction of fault current cannot always be monitored and determined via on-line by conventional fault diagnosis system due to DG penetration. In this paper, a fault current characterization which based on fuzzy logic algorithm (FLA) is proposed. Fault detection, fault classification, and fault current direction are extracted after processing the measurement result of three-phase line current. The ability of fault current characterization based on FLA is reflected in directional overcurrent relay (DOCR) model. The proposed DOCR model has been validated in microgrid test system simulation in Matlab environment. The simulation result showed accurate result for different fault location and type. The proposed DOCR model can operate as common protection device (PD) unit as well as unit to improve the effectiveness of existing fault diagnosis system when DG is present.

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L. Susilo, J. C. Gu and S. K. Huang, "Fault current Characterization Based on Fuzzy Algorithm for DOCR Application," Energy and Power Engineering, Vol. 5 No. 4B, 2013, pp. 932-936. doi: 10.4236/epe.2013.54B178.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Y. Sekine, et al., “Fault Diagnosis of Power Systems,” Proceedings of the IEEE, Vol. 80, No. 5, May 1992, pp. 673-683. doi:10.1109/5.137222
[2] R. N. Mahanty and P. B. Gupta Dutta, “A Fuzzy Logic Based Fault Classification Approach Using Current Samples Only,” Electric Power Systems Research, 77, 2007, pp. 501-507.doi:10.1016/j.epsr.2006.04.009
[3] A. K. Pradhan, A. Routray and M. S. Gudipalli, “Fault Direction Estimation in Radial Distribution System Using Phase Change in Sequence Current,” IEEE Transactions On Power Delivery, Vol. 22, No. 4, 2007, pp. 2065-2071.
[4] A. Ukil, B. Deck and V. H. Shah, “Current-Only Directional Overcurrent Relay,” IEEE Sensor Journal, Vol. 11, No. 6, 2011, pp. 1403-1404. doi:10.1109/JSEN.2010.2094186
[5] A. K. Pradhan and P. Jena, “Solution to Close-in Fault Problem in Directional Relaying,” IEEE Transactions On Power Delivery, Vol. 23, No. 3, 2008, pp. 1690-1692. doi:10.1109/TPWRD.2008.923149
[6] A. Ukil, B. Deck and V. H. Shah, “Smart Distribution Protection Using Current-only Directional Overcurrent Relay, IEEE PES Conference Innovative Smart Grid Technology, 2010, pp. 1-7.
[7] O. A. S. Youssef, “Fault Classification Based on Wavelet Transforms,” IEEE PES T&D Conference and Exposition, 2001, pp. 531-536.
[8] S. A. Gafoor and P. V. R. Rao, “Wavelet Based Fault Detection, Classification and Location in Transmission Lines,” First International Power and Energy Conference- PECon, November 2006, pp. 114-118.
[9] S. Das, N. Karnik and S. Santoso, “Distribution Fault-Locating Algorithms Using Current Only,” IEEE Trans. On Power Delivery, Vol. 27, No. 3, 2012, pp. 1144-1153. doi:10.1109/TPWRD.2012.2191422
[10] A. Ukil, B. Deck and V. H. Shah, “Current-Only Directional Over-current Protection for Distribution Automation: Challenges and Solutions,” IEEE Transactions on Smart Grid, Vol. PP, No. 99, August 2012, pp. 1-8.

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