Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31741
Conventional and Fuzzy Logic Controllers at Generator Location for Low Frequency Oscillation Damping

Authors: K. Prasertwong, N. Mithulananthan


This paper investigates and compares performance of various conventional and fuzzy logic based controllers at generator locations for oscillation damping. Performance of combination of conventional and fuzzy logic based controllers also studied by comparing overshoot on the active power deviation response for a small disturbance and damping ratio of the critical mode. Fuzzy logic based controllers can not be modeled in the state space form to get the eigenvalues and corresponding damping ratios of various modes of generators and controllers. Hence, a new method based on tracing envelop of time domain waveform is also presented and used in the paper for comparing performance of controllers. The paper also shows that if the fuzzy based controllers designed separately combining them could not lead to a better performance.

Keywords: Automatic voltage regulator, damping ratio, fuzzylogic controller, power system stabilizer.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1831


[1] P. Kundur, Power System Stability and Control, McGraw-Hill, 1994.
[2] G. Rogers, Power System Oscillations, Kluwer, 2000.
[3] J.H. Chow, G.E Boukarim, & A. Murdoch, "Power system stabilizers as undergraduate control design projects", IEEE Trans. on Power Systems vol. 19, no. 1, pp. 144-151, 2004.
[4] J. H. Chow, J. J. Sanchez-Gasca, H. Ren, and S. Wang, "Power system damping controller design", IEEE Control Systems Magazine, August 2000, pp. 82-90.
[5] Hsu, Y.Y; and Cheng, C.H.,"Design of fuzzy power system stabilizers for multimachine power systems", IEE Proceedings, vol. 137, no. 3, Pt. C:233-238, 1990.
[6] K.A. EI-Metwally, and O.P. Malik, "Fuzzy logic power system stabiliser", IEE Proc.-Gener. Transm. Distrib, vol. 142, no. 3, pp.277- 281, 1995.
[7] J. Shi, L. H. Herron, and A. Kalam, "Design and implementation of a PC-based automatic voltage regulator and fuzzy logic power system stabilizer", IEE 2nd Inter. Conf. On Advances in Power System Control, Operation and Management, Hong Kong, Dec.1993.
[8] M. A. Awadallah and M. M. Morcos, "A fuzzy logic-based AVR for a stand-alone alternator feeding a heater load", IEEE Power Engineering Review, Oct. 2001.
[9] A. R. Hasan, T. S. Martis, and A. H. M. S. Ula, "Design and implementation of a fuzzy controller based automatic voltage regulator for a synchronous generator", IEEE Trans. on Energy Conversion, Vol. 9, No. 3, pp.550-557, Sep. 1994.
[10] S. Jamaan, M. S. Majid, M. W. Mustaffa, and H. A. Rahman, "A comparative study of PI and fuzzy logic automatic voltage regulator of a micro-alternator system", IEEE Conference, PECON, Kuala Lumpur, Malaysia, 2004.
[11] T. Hiyama, "Integrated fuzzy logic stabilizing controller for power systems", IEEE Proceedings of the 35th Conference on Decision and Control, pp.2185-2190, Dec. 1996.
[12] N. G. Hingorani, and L. Gyugyi, Understandung FACTS, IEEE Press, 1999.
[13] J. Yen, and R. Langari, Fuzzy Logic, Intelligence, Control, and Information, Prentice Hall, 1999.
[14] K. Prasertwong, and N. Mithulananthan, "Fuzzy logic based automatic voltage regulator for damping power oscillations", Proceedings of the Fourth IASTED International Conference, Power and Energy Systems, April 2-4, 2008.
[15] K. Prasertwong, and N. Mithulananthan, "Comparison of fuzzy logic based and conventional power system stabilizer for damping of power system oscillations", GMSARN International Conference on Sustainable Development: Challenges and Opportunities for GMS 12- 14 Dec. 2007.