• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2013, Volume: 6, Issue: 2, Pages: 1-6

Original Article

Optimal Designing of Power System Stabilizers Using Differential Evolutionary Algorithm to Omit Inter-Area Oscillations


In this paper the values of power system stabilizer converge to optimal response coordinately using differential evolutionary algorithm (DE) with small number of iterations and it is tuned in a way that inter-Area power system oscillations will be omitted. The case study is a three-area system which is simulated non-linearly in time domain using MATLAB software. Simulation results show that without using PSS and during fault occurrence, the damper torque and synchronizer torque are decreased and system become unstable which lead to low frequency oscillations such as Inter-Area ones. These problems have been omitted using optimal and coordinated PSSs’.
Keywords: Differential Evolutionary Algorithm, Inter-Area oscillations, Local Search Algorithm, Small Signal Stability


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