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Modeling and Evaluation of Synchronous Generator Behavior under Asymmetrical Steady-State Operation in a Virtual Experimental Environment
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Keywords
Synchronous generator
asymmetrical operation
virtual laboratory
dq0 transformation
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Abstract
Synchronous generators are critical components in power systems, responsible for maintaining voltage stability, delivering active and reactive power, and ensuring system reliability. While traditional studies often assume balanced operation, real-world conditions frequently involve asymmetrical steady-state scenarios caused by unbalanced loads, single-phase faults, and uneven grid disturbances. These conditions result in voltage distortion, negative-sequence currents, torque oscillations, and potential system instability, which pose significant challenges for system operators and designers. This research presents a comprehensive modeling and evaluation framework for synchronous generator behavior under such asymmetrical steady-state operations using a virtual experimental environment. The framework integrates dq0 transformation-based analytical modeling with interactive virtual laboratory simulations to accurately capture the dynamic responses of generators under unbalanced conditions. The study applies systematic fault and load scenario testing, measuring deviations in voltage, current, and torque, while evaluating the generator’s performance against established theoretical and computational benchmarks (Birt et al., 1976; Boldea, 2006; Suryasen et al., 2014). Results demonstrate that unbalanced operating conditions induce significant electrical and mechanical deviations, emphasizing the limitations of conventional modeling approaches. The proposed virtual laboratory platform enables real-time monitoring, parameter manipulation, and predictive analysis, bridging the gap between theory and practical experimentation. The findings provide insights for system stability assessment, control strategy optimization, and educational applications, highlighting the necessity of advanced modeling and interactive simulations for contemporary power networks. By combining rigorous analytical methods with practical simulation tools, this study contributes to enhanced understanding of synchronous generator dynamics, operational resilience, and effective fault management strategies, establishing a foundation for future research in complex power system environments.
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References
1. Acha E, Fuerte-Esquivel C, Ambriz-Pérez H, and Angeles-Camacho. “FACTS, Modelling and Simulation in Power Networks,” John Willey & Sons, LTD., Chicester, England, 2005.
2. Bansal B. C, “Three-Phase Self-Excited Induction: An Overview,” IEEE Transaction on Energy Conversion, Vol. 20, No. 2, pp. 292-299, 2005.
3. Birt K.A, Graffy J.J, and McDonald J.D, “Three-Phase load Flow Program,” IEEE Transaction on Power Apparatus System, Vol. 95, No. 1, pp. 59-66, 1976.
4. Boldea I, “Synchronous Generator,” Boca Raton, FL: Taylor & Francis Group, LLC, 2006.
5. EDSA Technical. 2000. Available : http://www.edsa.com
6. Gustavsson I, “Laboratory Experiments in Distance Learning,” International Conference on Engineering Education, Vol. 8B, pp. 1-14, 2001.
7. Kirschen D, Allan R, and Strbac G, “Contributions of Individual Generators to Loads and Flows,” IEEE Transaction on Power Systems, Vol. 12, No. 1, pp. 52-60, 1997.
8. Krause P. C, Wasynczuk O, and Sudhoff S. D, “Analysis of Electric Machinery and Drive Systems,” Willey-InterScience, A John Willey & Sons, Inc. Publishing, New York, 2002.
9. Lupsa-Tataru L, “Comparative Simulation Study on Synchronous Generators Sudden Short Circuits,” Journal in Modelling and Simulation in Engineering. Vol. 8, pp. 1-11, 2009.
10. Menendez L. M, Mandado E, Salaveria A, and Dacosta J. G, “Virtual Electronics Laboratory: A new tool to improve industrial Electronics Learning,” 32nd Annual Conference on Industrial Electronics, pp. 5445-5448, 2006.
11. Mutthy S. S, Singh B, Gupta S, and Gulati B. B. “General Steady-State Analysis of Three-Phase Self-Excited Induction Generator Feeding Three-Phase Unbalanced Load/Single-Phase Load for Stand-alone Applications,” IEEE Transaction on Power, Generation, Transmission, and Distribution,Vol.150, No, 1, pp. 49-55, 2003.
12. Peng L, “Overloading Algorithm of Synchronous Generators Under Unbalanced Steady State Operation,” International Conference on Electrical Machine and system (ICEMS), pp. 1-6, 2011.
13. Ramya R, and Selvi K, “Simulation of Synchronous Generator with Fuzzy based Automatic Voltage Regulator,” International Journal of Electrical and Computer Engineering(IJECE). Vol. 4, No. 6, pp. 798-805, 2012.
14. Ruiz D, Asiain T. I, and Olguin D, “Teaching and Research Laboratory Simulator of Electric Power Systems,” The 29th Annual Frontie in Education, Vol. 1, No. 116b, pp. 8-14, 1999.
15. Saha T. N, Basu T. K, “Analysis of Asymetrical Faults in Synchronous Generators by dq0 Frame of Reference,” Proceeding IEE, Vol. 119, No. 5, pp. 587-595, 1972.
16. Salim R. H, and Ramos R. A, “Model-Based Approach for Small-Signal Stability Assesment of Unbalanced Power System,” IEEE Transaction on Power Systems, Vol. 27, No. 4, pp. 1-8, 2010.
17. Salim R. H, Ramos R. A, and Bretas N. G. “Analysis of the Small Signal Dynamic Performance of Synchronous Generators under Unbalanced Operating Conditions,” Power and Energy Society General Meeting, pp. 1-8, 2010.
18. Sugiarto, Hadi S. P, Tumiran, Wijaya F.D, “Teaching the Large Synchronous Generator Dynamic Model under Unbalanced Steady-State Operation,” The 5th International Conference on Information technology and Electrical Engineering (ICITEE), pp. 425-429, 2013.
19. Teodorescu R, Iov F, Lungeanu F, Tataru A. M, Dumitreu T, and Panaitescu R, “The Development of A Simulink Toolbox for Advanced Electrical Drives Simulation,” The 6th International Conference on Optimization of Electrical and Electronic Equipments, Vol. 2, pp. 573-576, 2008.
20. Trinadha A, Kumar A, Sandhu K. S, “Study of Wind Turbine based SEIG under Balanced/Unbalanced Loads and Excitation,” International Journal of Electrical and Computer Engineering(IJECE), Vol. 2, No. 3, pp. 353-370, 2012.
21. Suryasen K, Devadas, K. V, Harish A, “GUI based Testing Tool for Transformer,” International Journal of Electrical and Computer Engineering(IJECE), Vol. 4, No. 3. pp. 356-365, 2014.