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the remote bus, Fig. 13 gives the rotor angle variations of the generator for the various loading conditions. Examinations of figures 11-13 demonstrate that while both mB and αE, are very effective in controlling the power system damping independently, the coordinated 16 International Journal of Emerging Electric Power Systems, Vol. 6 [2006], Iss. 2, Art. 2 DOI: 10.2202/1553-779X.1138 application of these provide the best response. If from operational considerations only one control is to be employed, then the robust mB should be selected. 6. Evaluation of the

Volume 8, Issue 4 2007 Article 6 International Journal of Emerging Electric Power Systems Damping of Inter-Area Oscillation in Power Systems by Static Var Compensator (SVC) Using PMU-Acquired Remote Bus Voltage Angles Rajiv K. Varma, University of Western Ontario R. P. Gupta, Distribution Automation Research Centre, Corporate R & D and Quality, Crompton Greaves Ltd., Mumbai Soubhik Auddy, University of Western Ontario Recommended Citation: Varma, Rajiv K.; Gupta, R. P.; and Auddy, Soubhik (2007) "Damping of Inter-Area Oscillation in Power Systems by Static Var

Abstract

The objective of this paper is to investigate the power system damping enhancement via power system stabilizers (PSSs). However, the conventional power system stabilizers (CPSSs) have certain drawbacks. There are many techniques proposed in the literature for damping improvement of low frequency power system oscillations. In this paper, adaptive neuro-fuzzy inference system (ANFIS) technology has been proposed to coordinate the CPSSs in a multi-machine power system. The time-domain simulations are carried out in Matlab/Simulink environment to validate the effectiveness of the proposed control scheme under different operating conditions.

., Zavahir M., Hassan H. A., "SVC Dynamic Analytical Model", IEEE Transactions on Power Delivery , Vol 18, No 4, October 2003. Zhao Q., Jiang J., "Robust SVC Controller Design for Improving Power System Damping", Trans. on Power System , Vol. 10, No. 4, Nov. 1995. N. F. Djagarov, Zh. G. Grozdev, M. B. Bonev, "Investigation of Adaptive Control of Static Var Compensator for Oscillation Damping on Power Systems", WSEAS Transactions on Power Systems , Issue 5, Vol.1, May, 2006, pp.961-968. (Invited paper) N. Djagarov, Zh. Grozdev, M. Bonev, "Adaptive Controller for

of interconnected power systems using simulink”, IEEE Trans. Educ., vol. 44, pp. 87-95, Feb. 2001. [39] K. Schoder, A. Hasanović (Hasanovic), A. Feliachi, “Load-flow and dynamic model of the Unified Power Flow Controller (UPFC) within the Power System Toolbox (PST)”, Proc. IEEE Midwest Symp. Circuits Syst., 2000. [40] K. Schoder, A. Hasanović (Hasanovic), A. Feliachi, “Power system damping using fuzzy controlled unified power flow controller”, Proc. IEEE Power Eng. Soc. Winter Meeting, 2001. [41] Bam L., Jewell W. – „ Review: Power System Analysis Software Tools

stabilizer design IEEE Trans Power Syst 2004 Nov 19 4 1935 41 [14] Chaudhuri B, Majumder R, Pal BC. Wide-area measurement-based stabilizing control of power system considering signal transmission delay. IEEE Trans Power Syst. 2004 Nov;19(4):1971–79. 10.1109/TPWRS.2004.835669 Chaudhuri B Majumder R Pal BC Wide-area measurement-based stabilizing control of power system considering signal transmission delay IEEE Trans Power Syst 2004 Nov 19 4 1971 79 [15] Zhang S, Vittal V. Design of wide area power system damping controller resilient to communication failures. IEEE Trans

-Esaine JA, Carvalho VF. Load models for large-scale stability studies from end-user concumption. IEEE Trans Power Syst. 1987;2(4):864–70. Vaahedi E Fl-Kady MA Libaque-Esaine JA Carvalho VF Load models for large-scale stability studies from end-user concumption IEEE Trans Power Syst 1987 2 4 864 70 [8] Hiskens IA, Milanovic JV. Load modeling in studies of power system damping. IEEE Trans Power Syst. 1995;10(4):1781–88. Hiskens IA Milanovic JV Load modeling in studies of power system damping IEEE Trans Power Syst 1995 10 4 1781 88 [9] Pourbeik P. Approaches to validation of

Power Systems, 15 (2), pp.817-824, 2000. [3] Zhao Hongwei, He Jianjun, Feng Yuzhao, Chen Yan. “Optimal design of UPFC nonlinear control system”, Proceedings of Sixth International Conference on Advances on Power System Control, Operation and Management, Nov. 11-13, 2003, Hong Kong, 1, pp.414-418. [4] Mishra S., Dash P. K. and Panda G., “TS-fuzzy controller for UPFC in a multimachine power system”. IEE Proc. Gener. Transm. Distrib, 2000, 147. (1), pp. 15-22. [5] Schoder Karl, Hasanovic Azra, Ali Feliachi, “Power system damping using fuzzy controlled unified

. Allen, N. LaWhite, Y. Yoon, J. Chapman, and M. Ilic. Interac- tive object-oriented simulation of interconnected power systems using SIMULINK. IEEE Trans. on Education, 44(1):87–95, Feb. 2001. [11] R. Shintaku and K. Strunz. Branch companion modeling for diverse sim- ulation of electromagnetic and electromechanical transients. In Proceed- ings of the 6th International Conference on Power System Transients IPST05, June 2005. [12] I.A. Hiskens and J.V. Milanovic. Load modelling in studies of power system damping. IEEE Trans. Power Systems, 10(4):1781–1788, Nov. 1995. [13

– 15 August 2008. [15] Bomfim, A. L. B. Do, Taranto, G. N., and Falcao, D. M., “Simultaneous Tuning of Power System Damping Controllers Using Genetic Algorithm”. IEEE Trans. Power Syst., Vol. 15, No. 1, Pp. 163-169, February 2000. 17 Ramirez et al.: Multiband PSS Coordination [16] Abdel -Magic, Y. L., Abido, M. A., Al –Baiyat, S., and Mantawy, A. H., “Simultaneous Stabilization of Multimachine Power Systems Via Genetic Algorithms”. IEEE Trans. Power Syst., Vol. 14, No. 4, Pp. 1428-1437, November, 1999. [17] Abdel -Magic, Y. L., Abido, M. A., and Mantawy, A