Home > Published Issues > 2026 > Volume 15, No. 1, January 2026 >
IJEETC 2026 Vol.15(1): 412-420
doi: 10.5281/zenodo.18127547

Transient Stability Enhancement of Single-Machine Infinite Bus System Using Hybrid PSS Design with Particle Swarm Optimization

Majed Mohammed Alzouri1,* and Mohammed Gronfula2
1College of Engineering, Alasala Colleges, Dammam 31435, Eastern Province, Saudi Arabia
2College of Engineering, Alasala Colleges, Dammam 31435, Eastern Province, Saudi Arabia
Email: 11800001@alasala.edu.sa (M.M.A.), mohammed.gronfula@alasala.edu.sa (M.G.)
*Corresponding author

Manuscript received November 28, 2025; accepted December 26, 2025

Abstract—Power system stability is critical for reliable grid operation. This paper presents a two-stage hybrid design method for Power System Stabilizers (PSS) to improve transient stability in Single-Machine Infinite Bus (SMIB) systems. The first stage uses analytical phase compensation to design an initial PSS that ensures system stability. The second stage applies Particle Swarm Optimization (PSO) to fine-tune the PSS parameters for optimal performance. The method was tested on a 900 MVA generator system under severe fault conditions. Results show that the optimized PSS reduces settling time by 9.83% and decreases the Integral of Time-weighted Absolute Error (ITAE) by 47.98% compared to the analytical design. The hybrid approach combines the reliability of classical control theory with the performance benefits of modern optimization, making it suitable for practical power system applications.

 

Index Terms—particle swarm optimization, phase compensation, power system stabilizer, single-machine infinite bus, transient stability

Cite: Alzouri, M., & Gronfula, M., "Transient Stability Enhancement of Single-Machine Infinite Bus System Using Hybrid PSS Design with Particle Swarm Optimization," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 15, No. 1, pp. 412-420, 2026. doi: 10.5281/zenodo.18127547

Copyright © 2026 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.

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