Optimal Fractional Order PID Controller for Centralized and Decentralized Frequency Control in Restructured Power System
S. Jennathu Beevi1, R. Jayashree2

1S. Jennathu Beevi, Department of EEE, B. S. AbdurRahman Crescent Institute of Science and Technology, Vandalur, Chennai, (Tamilnadu), India.
2R. Jayashree, Department of EEE, B. S. AbdurRahman Crescent Institute of Science and Technology, Vandalur, Chennai, (Tamilnadu), India.

Manuscript received on 02 July 2019 | Revised Manuscript received on 05 July 2019 | Manuscript published on 30 August 2019 | PP: 97-108 | Volume-8 Issue-10, August 2019 | Retrieval Number: I8711078919/2019©BEIESP | DOI: 10.35940/ijitee.I8711.0881019
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Abstract: In this research paper, an attempt has been made to design a Fractional order PID (FOPID) controller employed for centralized and decentralized frequency control in a restructured power system. The controller gains are optimized by Moth Flame Optimization algorithm (MFO), with Integral Time Absolute Error (ITAE) as objective function. The performance of the FOPID controller is compared with that of conventional PID controller under various contract scenarios. It is observed that FOPID as a frequency error damping controller, the steady state and dynamic performance of the proposed power system is enhanced. 
Keywords: Automatic Generation Control, Bilateral Contracts, Fractional Order Controller, Regulation
Scope of the Article: Automatic Generation