The Application of Whale Optimization Algorithm for Optimal Placement of Autoreclosers in Improving the Reliability of Nigeria’s 330kV Electric Power System
| The Application of Whale Optimization Algorithm for Optimal Placement of Autoreclosers in Improving the Reliability of Nigeria’s 330kV Electric Power System | ||
|   |  | |
| © 2025 by IJETT Journal | ||
| Volume-73 Issue-10 | ||
| Year of Publication : 2025 | ||
| Author : Maman Jimoh Lawal, Oghenewvogaga Oghorada, Babatunde Adetokun | ||
| DOI : 10.14445/22315381/IJETT-V73I10P120 | ||
How to Cite?
Maman Jimoh Lawal, Oghenewvogaga Oghorada, Babatunde Adetokun,"The Application of Whale Optimization Algorithm for Optimal Placement of Autoreclosers in Improving the Reliability of Nigeria’s 330kV Electric Power System", International Journal of Engineering Trends and Technology, vol. 73, no. 10, pp.257-265, 2025. Crossref, https://doi.org/10.14445/22315381/IJETT-V73I10P120
Abstract
This work considers the optimal placement of autoreclosers on Nigeria’s 330kV transmission network using the Whale Optimization Algorithm to enhance system reliability. The network model was developed in MATLAB, and the WOA was applied to identify optimal autorecloser locations. The reliability performance was evaluated using key indices: SAIDI, SAIFI, CAIDI, ASAI, EENS, and AENS. The results revealed that the SAIDI and SAIFI values were 0.1886 hr/customer.yr and 0.2439 f/customer.yr, respectively - indicating fewer and shorter interruptions. The ASAI gave a value of 99.99%, while the CAIDI’s value was 0.7733 hr/customer interruption, reflecting enhanced supply availability and quicker restoration times. Finally, the EENS and AENS gave 3270.64MWh/yr and 74.8118MWh/customer.yr, respectively, confirming minimized energy losses and better service delivery. The outcome of the WOA-based algorithm was compared with other algorithms from existing literature and found to perform better. Therefore, the results of the study confirm that the strategic optimization of the placement of auto-reclosers is a viable and impactful technique for improving the reliability and resilience of modern power systems.
Keywords
AENS, ASAI, EENS, CAIDI, SAIDI, SAIFI.
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