Stabilization of Inter-Area Oscillations in a Two-Area Test System via Interval Type-2 Fuzzy Based Dynamic Brake Control


  • Mohamed Fayez Faculty of engineering, Benha university
  • Mohamed Mandor
  • Mohamed El-Hadidy
  • Fahmy Bendary



Thyristor controlled braking resistor, Fuzzy logic control, Interval Type-2 Fuzzy logic control, Inter-area oscillations, Kundur’s two-area test system.


Inter-area oscillations are, by far, the most detrimental to the synchronous integrity of interconnected power systems. This detriment comes from their wide frequency spectrum and the large numbers of the participant generators. The inherent poor damping associated with the inter-area oscillations leaves open wide probabilities for irrevocable widespread blackouts with the consequent eventual devastating outcomes measured in terms of the huge economic casualties and the possible human fatalities. This article explores the influences of the Interval Type-2 fuzzy logic-based strategized dynamic braking interventions of dual brake models, namely Thyristor Controlled Braking Resistors (TCBRs), for neutralizing the jeopardy of negatively damped inter-area power oscillations in Kundur’s two-area test system, using MATLAB™/Simulink environment. The relative inner generator's speed deviation is employed in this work as a control signal to the proposed controller. The effectiveness of the proposed scheme is authenticated by considering four case studies with different severity degrees. By analyzing the performance repercussions due to four disturbances, without the implementation of the proposed scheme, the unstable nature of the system responses is clearly noticed. With the implementation of the proposed scheme, the system oscillatory behavior is stabilized in an appropriate manner. The performed comparative non-linear time-domain simulation results emphasize the great potential of the proposed scheme in mitigation of inter-area power oscillations according to the considered disturbances. The proposed scheme is simple yet effective in treating the inter-area oscillations appropriately under the considered case studies.


P. Ju, “Stochastic dynamics of power systems,†Springer Verlag, Singapore, 2018, pp. 91–135.

L. L. Grigsby, “Power system stability and control,†Taylor & Francis Inc, Bosa Roca, 2012, pp. 140–157.

Cui Y, Wu L, Yu W, Liu Y, Yao W, Zhou D, Liu Y, “Inter-area oscillation statistical analysis of the U.S. eastern interconnection,†The Journal of Engineering, vol. 11, pp. 595 – 605, 2017.

D. P. Wadduwage, U. D. Annakkage, K. Narendra, “Identification of dominant low-frequency modes in ring-down oscillations using multiple Prony models,†IET Generation, Transmission & Distribution, vol. 15, pp. 2206 – 2214, 2015.

S. You, G. Kou, Y. Liu, X. Zhang, Y. Cui, M. J. Till, W. Yao, Y. Liu, “Impact of high PV penetration on the inter-area oscillations in the U. S. eastern interconnection,†IEEE Access, vol. 5, pp. 4361–4369, 2017.

Z. Bo, O. Shaojie, Z. Jianhua, S. Hui, W. Geng, Z. Ming, “An analysis of previous blackouts in the world: lessons for China's power industry,†Renewable and Sustainable Energy Reviews, vol. 42, pp. 1151–1163, 2015.

F. K. A. Lami, “A new improved method to damp inter-area oscillations in power systems with SSR mitigation and zone protection compensation,†Ph.D. Dissertation, University of Leicester, 2012.

J. C. Neely, R. H. Byrne, R. T. Elliott, C. A. Silva-Monroy, D. A. Schoenwald, D. J. Trudnowski, M. K. Donnelly, “Damping of inter-area oscillations using energy storage,†Proceedings of the power and energy society general meeting (PES), Vancouver, BC, Canada, pp. 1 – 5, July 21-25, 2013.

M. Hadjikypris, “Supervisory control scheme for FACTS and HVDC based damping of inter-area power oscillations in hybrid AC-DC power systems,†Ph.D. Dissertation, University of Manchester, 2015.

S. O. B. Tor, C. Gencoglu, O. Yilmaz, E. Cebeci, A. N. Guven, “Damping Measures against Prospective Oscillations between Turkish Grid and ENTSO-E System,†Proceeding of IEEE International Conference on Power System Technology (POWERCON), Hangzhou, China, pp. 1–7, October 24-28, 2010.

N. G. Hingorani, L. Gyugyi, “Understanding FACTS: concepts and technology of flexible AC transmission systems,†I.E.E.E. Press, New York, 1999, pp. 353 – 370.

M. F. Ahmed, M. A. Ebrahim, M. A. El-Hadidy, W. M. Mansour, “Torsional oscillations mitigation for interconnected power system via novel fuzzy control based braking resistor model,†Presented at conseil international des grands réseaux électriques (CIGRÉ), Paris, France, pp. 1 – 9, August 26-31, 2018.

E. Huseinbasic, I. Kuzle, T. Tomisa, “Inter-area oscillations damping using dynamic braking and phasor measurements,†Proceedings of IEEE/PES power systems conference and exposition (PSCE), Seattle, WA, USA, pp. 1 – 6, March 15–18, 2009.

G. Mosè, C. Bartolomeo, “Adaptive type-2 fuzzy control of non-linear systems,†Proceedings of the IEEE International Conference on Intelligent Computing and Intelligent Systems, Shanghai, China, pp. 705 – 709, November 20–22, 2009.

K. A. Naik, C. P. Gupta, “Performance comparison of Type-1 and Type-2 fuzzy logic systems,†Proceedings of the 2017 4th International Conference on Signal Processing Computing and Control (ISPCC), Solan, India, pp. 72 – 76, September 21–23, 2017.

R. Antão, “Type-2 fuzzy logic uncertain systems’ modelling and control,†Springer Verlag, Singapore, 2017

M. K. Panda, G. N. Pillai, V. Kumar, “Power system stabilizer design: interval type-2 fuzzy logic controller approach,†Proceedings of the international conference on power control and embedded systems, Allahabad, India, pp. 1–10, December 17-19, 2012.

M. Tripathy, S. Mishra, “Interval type-2-based thyristor-controlled series capacitor to improve power system stability,†IET Generation, Transmission & Distribution, vol. 5, pp. 209–222, 2011.

S. Kamel, B. Ziyad, H. M. Naguib, A. Mouloud, R. Mohamed, “An indirect adaptive type-2 fuzzy sliding mode PSS design to damp power system oscillations,†Proceedings of International Conference on Modelling, Identification and Control (ICMIC), Sousse, Tunisia, pp. 1–6, December 18-20, 2015.

K. Saoudi, Z. Bouchama, M. Ayad, M. Benziane, M. N. Harmas, “Design of a robust PSS using an indirect adaptive type-2 fuzzy sliding mode for a multi-machine power system,†Proceedings of international conference on modelling, identification and control, Algiers, Algeria, pp. 713–718, November 15-17, 2016.

S. K. Raju, G. N. Pillai, “Design and implementation of type-2 fuzzy logic controller for DFIG-based wind energy systems in distribution networks,†IEEE Transactions on Sustainable Energy, vol. 7, pp. 345–353, 2016.

A. Sharma, L. K. Nagar, N. P. Patidar, M. L. Kolhe, S. R. Nandanwar, V. N. Puranik, V. K. Singh, “Minimizing uncertainties with improved power system stability using wide area fuzzy-2 logic-based damping controller,†Proceedings of 3rd IEEE International Conference on "Computational Intelligence and Communication Technology" (IEEE-CICT), Ghaziabad, India, pp. 1–5, February 9-10, 2017.

O. Castillo, P. Melin, “Type-2 fuzzy logic: theory and applications,†Springer-Verlag, Berlin. (2008)

A. Taskin, T. Kumbasar, “An open source Matlab/Simulink toolbox for interval type-2 fuzzy logic systems,†In: Proceedings of IEEE Symposium Series on Computational Intelligence, Cape Town, South Africa, pp. 1561–1568, December 7-10, 2015.




How to Cite

Fayez, M., Mandor, M., El-Hadidy, M., & Bendary, F. (2020). Stabilization of Inter-Area Oscillations in a Two-Area Test System via Interval Type-2 Fuzzy Based Dynamic Brake Control. ELEKTRIKA- Journal of Electrical Engineering, 19(1), 41–49.