Performance analysis of 25KV AC traction system
25 kV AC traction system, railway electrification, load flow analysis, traction substation.
The 25 kV AC traction system is widely used in modern railway electrification due to its high efficiency and ability to transmit power over long distances with reduced losses; however, maintaining voltage stability, controlling harmonics, and ensuring reliable performance under varying load conditions remain key challenges. This research focuses on the performance analysis and validation of a 25 kV AC traction system under different operating scenarios. A detailed model was developed in MATLAB/Simulink incorporating major components such as the traction substation, transformer, overhead catenary system, rectifier, DC-link, and traction motor load. The system was simulated under varying load conditions, acceleration modes, and dynamic disturbances to evaluate key performance parameters including pantograph voltage, traction current, DC-link voltage stability, power factor, and harmonic distortion. The simulation results were compared with theoretical calculations and standard railway electrification limits for validation. Results indicate that the system maintains acceptable voltage regulation and current limits under normal and dynamic loading conditions, with minor transient voltage dips during sudden load changes that quickly stabilize. Harmonic levels and overall power quality were found within permissible limits. The study concludes that the developed 25 kV AC traction model demonstrates stable, efficient, and reliable performance, and the proposed simulation framework can be effectively utilized for further system optimization, fault analysis, and future railway electrification studied.
Registration ID: IJVRA_700942 Published ID: IJVRA2602456
"Performance analysis of 25KV AC traction system", IJVRA - International Journal of Versatile Research and Analysis (www.IJVRA.org), ISSN:2984-8903, Vol.4, Issue 2, page no.609-620, February-2026, Available :https://ijpub.org/ijvra/papers/IJVRA2602456.pdf
Paper Reg. ID: IJVRA_700942
Published Paper Id: IJVRA2602456
Research Area: Other area not in list
Country: Diu, Daman & Diu, India
ISSN: 2984-8903 | IMPACT FACTOR: 9.12 Calculated By Google Scholar | ESTD YEAR: 2023
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Publisher: IJVRA (IJ Publication) Janvi Wave
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