CUED Publications database

Firefly algorithm scaled fractional order fuzzy PID based PSS for transient stability improvement

Ray, PK and Paital, SR and Mohanty, A and Eddy, FYS and Krishnan, A and Gooi, HB and Amaratunga, GAJ (2018) Firefly algorithm scaled fractional order fuzzy PID based PSS for transient stability improvement. In: UNSPECIFIED pp. 428-433..

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Abstract

This paper presents an improvement in stability in a single machine connected to infinite bus power system by designing an optimal fractional order fuzzy PID based power system stabilizer (FOFPID-PSS). The low frequency oscillations resulting from load switching are damped out by the designed PSS under different operating conditions. In this paper, a bio-inspired algorithm called firefly algorithm (FA) has been employed for tuning the parameters of the proposed FOFPID-PSS controller. The robustness of the proposed controller is tested for enhancing the transient stability under different operating conditions like step and random variations in load demand. In addition to the graphical results, a comparative analysis of the proposed FOFPID-PSS controller with that of conventional PID-PSS and fuzzy PID-PSS (FPID-PSS) is also presented in terms of the performance indices (PIs) like maximum overshoot, settling time and integral squared error (ISE). The results suggest that the proposed FOFPID-PSS outperforms the FPID-PSS and PID-PSS controllers.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 07 Aug 2018 02:08
Last Modified: 15 Apr 2021 06:01
DOI: 10.1109/CarpathianCC.2018.8399668