Engineering and Technology Journal

An Unbalance Three Phase Currents Detection Technique for Load Side Broken Conductor Fault in the Iraqi Distribution System

Document Type : Research Paper

Authors

1 Department of Electrical Eng., University of Technology, Baghdad, Iraq

2 Electrical Engineering Department, University of Technology, Baghdad, Iraq

3 State Company of North Distribution Electricity, Iraq

Abstract

Electrical supply safety and quality represent targets that Iraqi power distribution companies always strive to meet. Load-side broken conductor fault LSBC is one of the greatest faults affecting both targets. Stand out since the magnitudes of the impact on the system are too small to activate the relevant system protection devices in Iraqi substation 33/11kV. Therefore, protection from LSBC faults has been one of the biggest challenges in the Iraqi electrical distribution system. In this context, the main aim of this article is to present a method for detecting LSBC faults by unbalanced three-phase currents faults measured in a 33/11kv distribution substation. Using computer simulations based on an actual distribution 11kV feeder model, this method was qualitatively tested. Then, a relationship between mathematical and simulation results was made. Finally, A comparison of the proposed method and recent literature was written. According to the obtained results of case studies, the protection devices in the Iraqi substations cannot efficiently sense the LSBC fault. The overcurrent relay is completely not sensitive to LSBC, and the neutral current fault relay is only sensitive (0-70)% of the different types of feeders under the study. While the proposed unbalance, the current method had been detected with 87% -93% of 11 kV feeders. The proposed techniques are applicable and compatible with the existing traditional protection of the overcurrent and earth fault protection system in the Iraqi 33/11kV substation.

Graphical Abstract

Highlights

  • Design of a MATLAB model capable of simulating the real distribution 11kv feeder.
  • The over-current relay is completely not sensitive to LSBC, and the neutral current fault relay is only sensitive to (0-70) % of the feeders.
  • Using the unbalanced current method, 87% - 93% of feeders can be protected.
  • Use mathematical methods to analyze LSBC fault.
  •  A comparison between the suggested approach with current research is written.

Keywords

Main Subjects

References
[1] R. M. Carrie, K. Cheung, and K. Malik, Alternative approaches and dynamic analysis     considerations for detecting open phase conductors in three-phase power systems, Electric Power Systems Research, 163 (2018) 59–65. https://doi.org/10.1016/j.epsr.2018.05.012.
[2] A. C. Adewole, A. Rajapaksea, D. Ouelletteb, P. Forsythb, Residual current-based method for open phase detection in radial and multisource power systems, International Journal of Electrical Power & Energy Systems, 117 (2020) 105610. https://doi.org/10.1016/j.ijepes.2019.105610.
[3] D. K. Jayamaha, I. H. Madhushani, R.S. Gamage, P. P. B. Tennakoon, J. R. Lucas, U. Jayatunga, Open Conductor Fault Detection, 3rd international conference: Moratuwa Engineering Research Conference: 29th-31st May 2017, University of Moratuwa. Piscataway, NJ: IEEE, 2017. https://doi.10.1109/MERCon.2017.7980511
[4] J. Li, H. Loehner, and T.  Doshi, Detecting and Isolating Falling Conductors in Midair Using 900 MHz Private LTE at Protection Speeds, Schweitzer Engineering Laboratories, Inc.2022.
[5] E. M. Esmaila, M. M. Elgamasy, T. M. Kawada, A. M. Taalab, N. Elkalashy, and M. A. Elsadd, Detection and experimental investigation of open conductor and single-phase earth return faults in distribution systems, International Journal of Electrical Power & Energy Systems, Volume 140 (2022). https://doi.org/10.1016/j.ijepes.2022.108089.
[6] Y. Du, and W. Tan, Power Based Open Phase Condition Detection Scheme, IOP Conf. Ser.: Earth Environ. Sci. 632,2021, 042012. https://doi.10.1088/1755-1315/632/4/042012.
[7] S. V. Fernandes, D. V. Jo˜ao, M. A. I. Martins, H. G. B. Souza, A. F. Macedo, and K.A. Martins, A Symmetrical Component Evaluation for Broken Conductor Fault Detection, in 2021 6th International Conference for Convergence in Technology (I2CT), pp. 1–6 Maharashtra, India, 2021. https://doi.org/10.1109/I2CT51068.2021.9417933.
[8] M. A. Dilli, H. M. A. Nascimento, and J. C. Silva, Conductor break detection in distribution system through negative sequence voltage, RIELAC, 42 3/2021 (2021) 31-44. Septiembre-Diciembre.
[9] X. Wang, and W. Xu, A 3rd harmonic power based open conductor detection scheme, IEEE Transactions on Power Delivery, 36 (2021) 1041-1050. https://doi.org/10.1109/TPWRD.2020.3001075.
[10] J. S. Hong, S. Y. Hyun, Y.W. Lee, J. H. Cohi, S. J. Ahn, and A. S. Y. Yun, Detection of Open Conductor Fault Using Multiple Measurement Factors of Feeder RTUs in Power Distribution Networks with DGs, In IEEE Access, 9 (2021) 143564-143579. https://doi.org/10.1109/ACCESS.2021.3121880.
[11] A. Wontroba, A. P. Morais, G. J. Cardoso, J. P. A. Vieira, P. E. Farias, M. Gallas, and J. P. Rossini, High-Impedance Fault Detection on Downed Conductor in Overhead Distribution Networks, Available at SSRN: 4052514,2022. https://doi.org/10.1016/j.epsr.2022.108216.
[12] S. Aarsey, and A. Bhargav, Review Paper on Single and Three Phase Fault Identification System using Machine Learning, International Journal of Research Publication and Reviews, 3 (2022) 54-60.
[13] H. Mirshekali, R. Dashti, A. Keshavarz, and H. R. Shaker, Machine Learning-Based Fault Location for Smart Distribution Networks Equipped with Micro-PMU, MDPI, Basel, Switzerland, Sensors, 2022. https://doi.org/10.3390/s22030945.
[14] M. Bhatnagar, and A. Yadav, Fuzzy based relaying scheme for high impedance faults in DG integrated distribution system, Electric Power Systems Research, 202 (2022). https://doi.org/10.1016/j.epsr.2021.107602.
[15] A.G. Al-Baghdadi, M. K. Abd, and F. M. F. Flaih, A New Detection Method for Load Side Broken Conductor Fault Based on Negative to Positive Current Sequence, Electronics, 11, 2022,836. https://doi.org/10.3390/electronics11060836.
[16] K. Ma, L. Fang, and W. Kong, Review of distribution network phase unbalance Scale, causes, consequences, solutions, and future research directions, CSEE Journal of Power and Energy Systems, 6 (2020) 479-488. https://doi.org/10.17775/CSEEJPES.2019.03280.
[17] H. K. Wong, S. Chen, S. Lau, J. Tang, and K. P. Liu, Detection of Open-circuit Fault in 11kV Ring Circuits by Unbalanced Current Measurement, 2006 IEEE PES Power Systems Conference and Exposition, 2006,1240-1243. https://doi.org/10.1109/PSCE.2006.296484.
[18] J. Pan, J. Liu, X. Chen, and K. Zhong, Three-phase unbalanced load control based on load–electricity transfer index, Energy Reports. 7. 312-318. 10.1016/j.egyr.2021.01.064, The International Conference on Power Engineering (ICPE), Guangzhou, China 2021. https://doi.org/10.1016/j.egyr.2021.01.064.
[19] M. Bina, and A. Kashefi, Three-phase unbalance of distribution systems: Complementary analysis and experimental case study, International Journal of Electrical Power & Energy Systems, 33 (2011) 817-826. https://doi.org/10.1016/j.ijepes.2010.12.003.
[20] The republic of Iraq ministry of electricity (MoE), Energy distribution office, Construction of 33/11kV Substations (2 x 31.5 MVA) Section (1), Technical specifications.
[21] J. M. Gers, and E. J. Holmes, Protection of Electricity Distribution Networks, 3rd Edition, The Institution of Engineering and Technology, Power and Energy Series 65, 2011.
[22] https://www.garmin.pk/oregon-750.html
[23] A. Marquez, A. Torres, I. Sanchez, K. Tran, M. Webster, Y. Yin, and G. G.  Solutions, High-Speed Falling Conductor Protection in Distribution Systems using Synchro phasor Data, Alfredo Marquez, Arturo Torres, Ignacio Sanchez, Kiet Tran, and Matthew Webster Southern California Edison Company, USA,2022.
[24] W. O'Brien, E. Udren, K. Garg, D. Haes and B. Sridharan, Catching falling conductors in midair detecting and tripping broken distribution circuit conductors at protection speeds, 2016 69th Annual Conference for Protective Relay Engineers (CPRE), 2016, 2016, 1-11. https://doi.org/10.1109/CPRE.2016.7914881.
[25] H. K. Wong, S. Chen, S. K. Lau, J. Tang and K. P. Liu, Detection of Open-circuit Fault in 11kV Ring Circuits by Unbalanced Current Measurement, 2006 IEEE PES Power Systems Conference and Exposition, 2006,2006, 1240-1243. https://doi.org/10.1109/PSCE.2006.296484.
[26] L. Himadri, and K. Subrata, Classification of arc fault between broken conductor and high-impedance surface: an empirical mode decomposition and Stockwell transform-based approach, IET Gener. Transm. Distrib., © The Institution of Engineering and Technology 14 (2020) 5277-5286 . https://doi.org/10.1049/iet-gtd.2020.0340.
[27] E. Bjerkan, H. K. Høidalen, J. G.  Hernes, and N. E. T. AS-Norway, Reliable detection of downed and broken conductors. In CIRED 19th International Conference on Electricity Distribution. 2007.
Engineering and Technology Journal
Volume 41, Issue 2
Electrical Engineering
18 articles
February 2023
Page 418-434
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