Two degree of freedom fractional PI scheme for automatic voltage regulation

Vadan Padiachy; Utkal Mehta; Sheikh Azid; Shivneel Prasad; Rohinesh Kumar

doi:10.1016/j.jestch.2021.08.003

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$Two degree of freedom fractional PI scheme for automatic voltage regulation$

Journal article

Open access

Peer reviewed

Two degree of freedom fractional PI scheme for automatic voltage regulation

Vadan Padiachy, Utkal Mehta, Sheikh Azid, Shivneel Prasad and Rohinesh Kumar

Engineering science and technology, an international journal, Vol.30, 101046

2022

DOI: https://doi.org/10.1016/j.jestch.2021.08.003

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Abstract

Engineering

Engineering, Multidisciplinary

Science & Technology

Technology

The effectiveness of the inferential control scheme based on robust fractional-order proportional integral (FOPI) controller is presented for automatic voltage regulation (AVR) applications. The method uses two degree of freedom (2DOF) in FOPI scheme, which is tuned with the whale optimization algorithm (WOA). Actually, any AVR needs to keep the reactive power of synchronous generator at demand level, stable voltage and frequency of the electrical power supplies. In this study, the 2DOF FOPI controller is proposed to deviate away from the standard integer order, to show the superiority of extra degree of freedom in both structure and controller. To improve the AVR performance, a new performance measure is proposed for the parameter tuning. The method acquires the significant robustness in parameter perturbation and disturbance interruptions. It is observed in the step response quality that the overshoot and settling time can be reduced to approximately by half than the recently published scheme. The various analyses are shown to accept the dominance of the proposed controller in terms of robustness.

Details

Title: Two degree of freedom fractional PI scheme for automatic voltage regulation
Authors/Creators: Vadan Padiachy - Univ South Pacific, Elect & Elect Engn, Laucala Campus, Suva, Fiji
Utkal Mehta - University of the South Pacific
Sheikh Azid - University of the South Pacific - Solomon Islands Campus
Shivneel Prasad - University of the South Pacific
Rohinesh Kumar - Univ South Pacific, Elect & Elect Engn, Laucala Campus, Suva, Fiji
Publication Details: Engineering science and technology, an international journal, Vol.30, 101046
Publisher: Elsevier B.V.
Number of pages: 11
Identifiers: 991005654369307891
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Citation topics: 4 Electrical Engineering, Electronics & Computer Science; 4.84 Supply Chain & Logistics; 4.84.169 Particle Swarm Optimization
Web Of Science research areas: Engineering, Multidisciplinary
ESI research areas: Engineering