Overcurrent Relays Optimization in Distribution Networks Using Bald Eagle Search Algorithm
Article Information
Abstract
Efficient coordination of directional overcurrent relays (DOCRs) is a crucial aspect of any protection plan design. This involves selecting appropriate parameters, such as Time Dial Setting (TDS) and Plug Setting (PS) or Pick-up current (Ip), through an optimization approach to minimize the total tripping time of directional overcurrent protection relays positioned at a specific location. In this study, we introduce the Bald Eagle Search Optimizer (BES), a novel optimization method tailored for enhancing the coordination of directional overcurrent relays. Five systems were modeled and simulated to evaluate the efficacy of the proposed approach. The BES method leverages linear programming (LP), nonlinear programming (NLP), and mixed-integer nonlinear programming (MINLP) to optimize the TDS and PS while adhering to all constraints. Extensive evaluation using diverse benchmarks with varying topologies confirms the efficiency and robustness of the BES method, namely IEEE 3-bus (with and without distributed generation), IEEE 6-bus, and IEEE 8-bus systems, surpassing the performance of other algorithms documented in the literature under comparable conditions, ensuring equitable comparisons.
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References
- Khurshaid, T., Wadood, A., Farkoush, S. G., Kim, C. H., Yu, J., & Rhee, S. B. (2019). Improved firefly algorithm for the optimal coordination of directional overcurrent relays. IEEE Access, 7, 78503–78514.
[CrossRef] [Google Scholar] - Amraee, T. (2012). Coordination of directional overcurrent relays using seeker algorithm. IEEE Transactions on Power Delivery, 27(3), 1415-1422.
[CrossRef] [Google Scholar] - Yu, J., Kim, C. H., & Rhee, S. B. (2020). The comparison of lately proposed Harris Hawks optimization and Jaya optimization in solving directional overcurrent relays coordination problem. Complexity, 2020(1), 3807653.
[CrossRef] [Google Scholar] - Singh, M., Panigrahi, B. K., & Abhyankar, A. R. (2013). Optimal coordination of directional over-current relays using Teaching Learning-Based Optimization (TLBO) algorithm. International Journal of Electrical Power & Energy Systems, 50, 33-41.
[CrossRef] [Google Scholar] - Kalage, A. A., & Ghawghawe, N. D. (2016). Optimum coordination of directional overcurrent relays using modified adaptive teaching learning based optimization algorithm. Intelligent Industrial Systems, 2(1), 55-71.
[CrossRef] [Google Scholar] - Albasri, F. A., Alroomi, A. R., & Talaq, J. H. (2015). Optimal coordination of directional overcurrent relays using biogeography-based optimization algorithms. IEEE Transactions on Power Delivery, 30(4), 1810-1820.
[CrossRef] [Google Scholar] - Kheshti, M., Tekpeti, B. S., & Kang, X. (2016, October). The optimal coordination of over-current relay protection in radial network based on particle swarm optimization. In 2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) (pp. 604-608). IEEE.
[CrossRef] [Google Scholar] - Mansour, M. M., Mekhamer, S. F., & El-Kharbawe, N. (2007). A modified particle swarm optimizer for the coordination of directional overcurrent relays. IEEE transactions on power delivery, 22(3), 1400-1410.
[CrossRef] [Google Scholar] - Shakti, S., Nirbhow, J. S., & Nitin, N. (2020). Implementation of hybrid ABC-PSO algorithm for directional overcurrent relays coordination problem. International Journal of Innovative Technology and Exploring Engineering, 9{7, 721-727.
[CrossRef] [Google Scholar] - Zellagui, M., & Abdelaziz, A. Y. (2015). Optimal coordination of directional overcurrent relays using hybrid PSO-DE algorithm. International Electrical Engineering Journal (IEEJ), 6(4), 1841-1849. https://www.researchgate.net/publication/280131155
[Google Scholar] - Bedekar, P. P., & Bhide, S. R. (2011). Optimum coordination of overcurrent relay timing using continuous genetic algorithm. Expert Systems with Applications, 38(9), 11286–11292.
[CrossRef] [Google Scholar] - Bedekar, P. P., & Bhide, S. R. (2010). Optimum coordination of directional overcurrent relays using the hybrid GA-NLP approach. IEEE Transactions on Power Delivery, 26(1), 109-119.
[CrossRef] [Google Scholar] - Noghabi, A. S., Sadeh, J., & Mashhadi, H. R. (2009). Considering different network topologies in optimal overcurrent relay coordination using a hybrid GA. IEEE Transactions on Power Delivery, 24(4), 1857-1863.
[CrossRef] [Google Scholar] - Kamel, S., Korashy, A., Youssef, A. R., & Jurado, F. (2020). Development and application of an efficient optimizer for optimal coordination of directional overcurrent relays. Neural Computing and Applications, 32(12), 8561-8583.
[CrossRef] [Google Scholar] - Bouchekara, H. R. E. H., Zellagui, M., & Abido, M. A. (2017). Optimal coordination of directional overcurrent relays using a modified electromagnetic field optimization algorithm. Applied Soft Computing, 54, 267-283.
[CrossRef] [Google Scholar] - El-Fergany, A. A., & Hasanien, H. M. (2019). Water cycle algorithm for optimal overcurrent relays coordination in electric power systems. Soft Computing, 23(23), 12761-12778.
[CrossRef] [Google Scholar] - Rajput, V. N., Pandya, K. S., & Joshi, K. (2015, June). Optimal coordination of Directional Overcurrent Relays using hybrid CSA-FFA method. In 2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON) (pp. 1-6). IEEE.
[CrossRef] [Google Scholar] - Irfan, M., Wadood, A., Khurshaid, T., Khan, B. M., Kim, K.-C., Oh, S.-R., & Rhee, S.-B. (2021). An optimized adaptive protection scheme for numerical and directional overcurrent relay coordination using Harris Hawk Optimization. Energies, 14(18), 5603.
[CrossRef] [Google Scholar] - Sampaio, F. C., Tofoli, F. L., Melo, L. S., Barroso, G. C., Sampaio, R. F., & Leão, R. P. S. (2022). Adaptive fuzzy directional bat algorithm for the optimal coordination of protection systems based on directional overcurrent relays. Electric power systems research, 211, 108619.
[CrossRef] [Google Scholar] - Alam, M. N., Khurshaid, T., & Rhee, S.-B. (2024). Hybrid GA-IPM algorithm for optimal protection coordination of directional overcurrent relays with mixed time current characteristic curves. Electrical Engineering, 106(4), 5027-5041.
[CrossRef] [Google Scholar] - Foqha, T., Alsadi, S., Omari, O., & Refaat, S. S. (2024). Optimization techniques for directional overcurrent relay coordination: A comprehensive review. IEEE Access, 12, 1952-2006.
[CrossRef] [Google Scholar] - Wang, X. (2024). An intensified northern goshawk optimization algorithm for solving optimization problems. Engineering Research Express, 6(4), 045267.
[CrossRef] [Google Scholar] - Wang, Y., Habib, K., Wadood, A., & Khan, S. (2023). The hybridization of PSO for the optimal coordination of directional overcurrent protection relays of the IEEE bus system. Energies, 16(9), 3726.
[CrossRef] [Google Scholar] - Wadood, A., & Park, H. (2024). A novel application of fractional order derivative moth flame optimization algorithm for solving the problem of optimal coordination of directional overcurrent relays. Fractal and Fractional, 8(5), 251.
[CrossRef] [Google Scholar] - Jamal, N. Z., Sulaiman, M. H., Aliman, O., & Mustaffa, Z. (2018). Optimal overcurrent relays coordination using an improved grey wolf optimizer. International Journal of Advanced Computer Science and Applications, 9(11), 117–125.
[CrossRef] [Google Scholar] - Hamad, B. H., & Alkhayyat, M. T. (2025). Optimal coordination for directional overcurrent relays incorporating distribution generators: A comparative study. Diagnostyka, 26(1), 111. https://orcid.org/0009-0005-9759-1621
[Google Scholar] - Ramli, S. P., Mokhlis, H., Wong, W. R., Muhammad, M. A., & Mansor, N. N. (2022). Optimal coordination of directional overcurrent relay based on combination of Firefly Algorithm and Linear Programming. Ain Shams Engineering Journal, 13(6), 101777.
[CrossRef] [Google Scholar] - Khurshaid, T., Wadood, A., Farkoush, S. G., Kim, C. H., Cho, N., & Rhee, S. B. (2019). Modified particle swarm optimizer as optimization of time dial settings for coordination of directional overcurrent relay. Journal of Electrical Engineering & Technology, 14(1), 55-68.
[CrossRef] [Google Scholar] - Alsattar, H. A., Zaidan, A. A., & Zaidan, B. B. (2020). Novel metaheuristic bald eagle search optimisation algorithm. Artificial Intelligence Review, 53(3), 2237–2264.
[CrossRef] [Google Scholar] - Saberi, H., & Amraee, T. (2017). Coordination of directional over‐current relays in active distribution networks using generalised benders decomposition. IET Generation, Transmission & Distribution, 11(16), 4078-4086.
[CrossRef] [Google Scholar] - Wadood, A., Khurshaid, T., Farkoush, S. G., Yu, J., Kim, C.-H., & Rhee, S.-B. (2019). Nature-inspired whale optimization algorithm for optimal coordination of directional overcurrent relays in power systems. Energies, 12(12), 2297.
[CrossRef] [Google Scholar] - Alam, M. N., Chakrabarti, S., & Pradhan, A. K. (2022). Protection of networked microgrids using relays with multiple setting groups. IEEE Transactions on Industrial Informatics, 18(6), 3713-3723.
[CrossRef] [Google Scholar] - Korashy, A., Kamel, S., & Jurado, F. (2023). Optimal coordination of directional overcurrent relays and distance relays using different optimization algorithms. Electrical Engineering, 105, 2935-2947.
[CrossRef] [Google Scholar] - Zellagui, M., & Hassan, H. A. (2015). A hybrid optimization algorithm (IA-PSO) for optimal coordination of directional overcurrent relays in meshed power systems. WSEAS Transactions on Power Systems, 10, 240–250. https://wseas.com/journals/articles.php?id=4508
[Google Scholar] - Singh, D. K., & Gupta, S. (2012, March). Optimal coordination of directional overcurrent relays: A genetic algorithm approach. In 2012 IEEE Students' Conference on Electrical, Electronics and Computer Science (pp. 1-4). IEEE.
[CrossRef] [Google Scholar] - Walke, S. B., & Jangle, N. N. (2017, July). Impact of distributed generation on relay coordination. In 2017 International Conference on Computing Methodologies and Communication (ICCMC) (pp. 882-887). IEEE.
[CrossRef] [Google Scholar]
Cite This Article
TY - JOUR AU - Guerraiche, Khaled AU - Sahraoui, Nourelhouda AU - Midouni, Feriel AU - Dekhici, Latifa AU - Hamai, Bouchra PY - 2026 DA - 2026/08/11 TI - Overcurrent Relays Optimization in Distribution Networks Using Bald Eagle Search Algorithm JO - Intelligent Computing for Engineering T2 - Intelligent Computing for Engineering JF - Intelligent Computing for Engineering VL - 1 IS - 1 SP - 4 EP - 16 DO - 10.62762/ICE.2026.977887 UR - https://www.icck.org/article/abs/ICE.2026.977887 KW - bald eagle search KW - optimization KW - overcurrent relays KW - optimal coordination KW - relays settings AB - Efficient coordination of directional overcurrent relays (DOCRs) is a crucial aspect of any protection plan design. This involves selecting appropriate parameters, such as Time Dial Setting (TDS) and Plug Setting (PS) or Pick-up current (Ip), through an optimization approach to minimize the total tripping time of directional overcurrent protection relays positioned at a specific location. In this study, we introduce the Bald Eagle Search Optimizer (BES), a novel optimization method tailored for enhancing the coordination of directional overcurrent relays. Five systems were modeled and simulated to evaluate the efficacy of the proposed approach. The BES method leverages linear programming (LP), nonlinear programming (NLP), and mixed-integer nonlinear programming (MINLP) to optimize the TDS and PS while adhering to all constraints. Extensive evaluation using diverse benchmarks with varying topologies confirms the efficiency and robustness of the BES method, namely IEEE 3-bus (with and without distributed generation), IEEE 6-bus, and IEEE 8-bus systems, surpassing the performance of other algorithms documented in the literature under comparable conditions, ensuring equitable comparisons. SN - 5 Articles Required PB - Institute of Central Computation and Knowledge LA - English ER -
@article{Guerraiche2026Overcurren,
author = {Khaled Guerraiche and Nourelhouda Sahraoui and Feriel Midouni and Latifa Dekhici and Bouchra Hamai},
title = {Overcurrent Relays Optimization in Distribution Networks Using Bald Eagle Search Algorithm},
journal = {Intelligent Computing for Engineering},
year = {2026},
volume = {1},
number = {1},
pages = {4-16},
doi = {10.62762/ICE.2026.977887},
url = {https://www.icck.org/article/abs/ICE.2026.977887},
abstract = {Efficient coordination of directional overcurrent relays (DOCRs) is a crucial aspect of any protection plan design. This involves selecting appropriate parameters, such as Time Dial Setting (TDS) and Plug Setting (PS) or Pick-up current (Ip), through an optimization approach to minimize the total tripping time of directional overcurrent protection relays positioned at a specific location. In this study, we introduce the Bald Eagle Search Optimizer (BES), a novel optimization method tailored for enhancing the coordination of directional overcurrent relays. Five systems were modeled and simulated to evaluate the efficacy of the proposed approach. The BES method leverages linear programming (LP), nonlinear programming (NLP), and mixed-integer nonlinear programming (MINLP) to optimize the TDS and PS while adhering to all constraints. Extensive evaluation using diverse benchmarks with varying topologies confirms the efficiency and robustness of the BES method, namely IEEE 3-bus (with and without distributed generation), IEEE 6-bus, and IEEE 8-bus systems, surpassing the performance of other algorithms documented in the literature under comparable conditions, ensuring equitable comparisons.},
keywords = {bald eagle search, optimization, overcurrent relays, optimal coordination, relays settings},
issn = {5 Articles Required},
publisher = {Institute of Central Computation and Knowledge}
}
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