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MOEA based Design of Decentralized Load-Frequency Controllers for Interconnected Power Systems with AC-DC Parallel Tie-lines and Considering Nonlinearities

by S.Ganapathy, S.Velusami
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 1 - Number 8
Year of Publication: 2010
Authors: S.Ganapathy, S.Velusami
10.5120/186-322

S.Ganapathy, S.Velusami . MOEA based Design of Decentralized Load-Frequency Controllers for Interconnected Power Systems with AC-DC Parallel Tie-lines and Considering Nonlinearities. International Journal of Computer Applications. 1, 8 ( February 2010), 32-37. DOI=10.5120/186-322

@article{ 10.5120/186-322,
author = { S.Ganapathy, S.Velusami },
title = { MOEA based Design of Decentralized Load-Frequency Controllers for Interconnected Power Systems with AC-DC Parallel Tie-lines and Considering Nonlinearities },
journal = { International Journal of Computer Applications },
issue_date = { February 2010 },
volume = { 1 },
number = { 8 },
month = { February },
year = { 2010 },
issn = { 0975-8887 },
pages = { 32-37 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume1/number8/186-322/ },
doi = { 10.5120/186-322 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T19:45:11.569357+05:30
%A S.Ganapathy
%A S.Velusami
%T MOEA based Design of Decentralized Load-Frequency Controllers for Interconnected Power Systems with AC-DC Parallel Tie-lines and Considering Nonlinearities
%J International Journal of Computer Applications
%@ 0975-8887
%V 1
%N 8
%P 32-37
%D 2010
%I Foundation of Computer Science (FCS), NY, USA
Abstract

A new approach to the design of decentralised controllers, using Multi-Objective Evolutionary Algorithm (MOEA), for load-frequency control of interconnected power systems with AC-DC parallel tie-lines and considering Governor Dead Band and Generation Rate Constraint nonlinearities, is proposed in this paper. The HVDC link is used as system interconnection in parallel with AC tie-line to effectively damp the frequency oscillations of AC system. The proposed controller satisfies two main objectives, namely, minimum Integral Squared Error of the system output and maximum closed loop stability of the system. Simulation studies are conducted on a two area interconnected power system with AC-DC parallel tie lines and considering nonlinearities. Results indicate that the proposed controller gives good dynamic responses and can guarantee the stability of the overall system in the presence of system nonlinearities and parameter changes.

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Index Terms

Computer Science
Information Sciences

Keywords

Power systems Load-frequency control Multi-Objective Evolutionary Algorithm HVDC link AC-DC tie-lines Governor dead band Generation rate constraint

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