• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2017, Volume: 10, Issue: 13, Pages: 1-6

Original Article

Load Frequency Control of Nonlinear Power System Employing Firefly Algorithm


Background/Objectives: Firefly Algorithm (FA) is employed to for Load Frequency Control (LFC) of nonlinear power system. Methods/Statistical Analysis: The supremacy of FA technique is established by comparing the outcomes with Genetic Algorithm (GA). Findings: Additionally, sensitivity study is conducted by changing system parameters like time constants of turbine, speed governor and inertia constant as well as generator initial loading condition by +50% to -50% from their normal values in addition to the magnitude and location of load disturbance to illustrate the effectiveness of the suggested design approach. Application/Improvements: A nonlinear three area thermal system is taken as the system under study and the parameters of the LFC controller are tuned using FA technique. 

Keywords: Firefly Algorithm (FA), Generation Rate Constraint (GRC), Load Frequency Control (LFC), Proportional Integral Derivative Controller, Sensitivity Analysis


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