State of art fractional order controller for power system stabilizer

Issue title: Soft Computing and Intelligent Systems: Techniques and Applications

Guest editors: Sabu M. Thampi and El-Sayed M. El-Alfy

Article type: Research Article

Authors: Nangrani, S.P.^{; *}

Affiliations: Senior Member IEEE, Department of Electrical Engineering, G.H. Raisoni College of Engineering, Nagpur, India

Correspondence: [*] Corresponding author. S.P. Nangrani, Senior Member IEEE, Electrical Engineering Department, G.H. Raisoni College of Engineering, Nagpur, India. E-mail: sunil.nangrani@raisoni.net.

Abstract:  Small perturbations quite often lead to power system instability. Power system stabilizer damp the electro mechanical oscillations in generator. Design of power system stabilizer has changed over past few decades. Artificial intelligence based controllers are found to be more effective to handle complex control situations during perturbations in power system. Fuzzy logic supported power system stabilizers were proposed to control such perturbations in more efficient way than conventional one. Fractional order controllers perform better than their counterparts in various engineering applications. This paper suggests use of such state of art fractional order controller in conjunction with existing power system stabilizer to enhance performance in terms of damping of electromechanical oscillations. From the results obtained from simulation models, it is observed that judicious design of fractional order controller in power system gives better handling of control operations. Comparison of conventional, fuzzy based and Fractional Order based power system stabilizer reveals usefulness of proposed controller.

Keywords: Power system stabilizer, fractional order power system stabilizer, fuzzy power system stabilizer

DOI: 10.3233/JIFS-169928

Journal: Journal of Intelligent & Fuzzy Systems, vol. 36, no. 3, pp. 2165-2173, 2019