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Frontiers in Energy

2013, Volume 7,  Issue 3, Pages 307-316
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    An interval type-2 fuzzy logic controller for TCSC to improve the damping of power system oscillations

    1. Electronics & Computer Engineering Department, Indian Institute of Technology, Roorkee 247667, India; 2. Electrical Engineering Department, Indian Institute of Technology, Roorkee 247667, India

    Available online:2013-09-05
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    10.1007/s11708-013-0269-3
    Cite this article
    Manoj Kumar PANDA, Gopinath PILLAI, Vijay KUMAR.An interval type-2 fuzzy logic controller for TCSC to improve the damping of power system oscillations[J].Frontiers in Energy,2013,7(3):307-316.

    Abstract

    In this paper an interval type-2 fuzzy logic controller (IT2FLC) was proposed for thyristor controlled series capacitor (TCSC) to improve power system damping. For controller design, memberships of system variables were represented using interval type-2 fuzzy sets. The three-dimensional membership function of type-2 fuzzy sets provided additional degree of freedom that made it possible to directly model and handle uncertainties. Simulations conducted on a single machine infinite bus (SMIB) power system showed that the proposed controller was more effective than particle swarm optimization (PSO) tuned and type-1 fuzzy logic (T1FL) based damping controllers. Robust performance of the proposed controller was also validated at different operating conditions, various disturbances and parameter variation of the transmission line parameters.

    Keywords

    power system oscillations ; thyristor controlled series capacitor (TCSC) ; type-2 fuzzy logic system ; interval type-2 fuzzy logic controller (IT2FLC)
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