University of Khartoum

Load Frequency Control for a Two Area Power System

Load Frequency Control for a Two Area Power System

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Title: Load Frequency Control for a Two Area Power System
Author: Abdelrahim, Samah Omer Osman
Abstract: Variations in electrical load in any system cause deviations in the frequency and voltage, if those variations are not recovered soon enough, they will cause major problems from damaging customers’ devices to blackouts. Automatic generation control AGC is usually used to deal with these deviations in frequency and voltage and reduce them to an acceptable level, AGC is composed of two sections, load frequency control LFC and automatic voltage regulator AVR, LFC is used to maintain the frequency at its nominal value and AVR is to maintain a constant line voltage. In systems that are operating with their maximum rating, any increase in the load will cause generators to fall, or in best cases suppliers will have to load shed some areas to cover this new load that entered the grid. Interconnected area system is a solution to such problem, any load demand in one area can be supplied by any other area that is interconnected with it, in interconnected areas any load change in one area causes fluctuations in the frequency of the other connected areas and also fluctuations in tie line power. LFC in interconnected areas used to maintain the frequency and reduce the ACE (maintain the tie line power). In this thesis LFC is investigated using Matlab 2013 and Simulink library in single area and multi area system, Simulink is used to study two area system with some different controllers and their responses to load change.
URI: http://khartoumspace.uofk.edu/123456789/25764
Date: 2017-10


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