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Research Article Open Access
Load Frequency Control (LFC) is one of the vital parts in power system design, automation, operation and stability.In this paper, we compare two different controllers,the Biogeography-Based Optimization (BBO) based PID controller and Fuzzy Logic Controller (FLC), in LFC problem of two area interconnected hydrothermal power system. The hydro and thermal areas are comprised with an electric governor and reheat turbine, respectively.Also, 1% Step Load Perturbation (SLP) has been considered in any individual area. The mentioned power system with the proposed approach is simulated in MATLAB/SIMULINK and the responses of frequency and tie-line power deviation for these two controllers in each area were shown and compared. The simulation results show that FLC achieves better responses in comparison with BBO based PID controller.
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Author(s): Hatef Farshi, Khalil Valipour
Load Frequency Control (LFC), PID controller, Bio-geography Based Optimization (BBO), Fuzzy Logic Controller (FLC), Step Load Perturbation (SLP), Integral Square Error (ISE), Diagnosis and Sensing Systems,Control Theory and Application,Bio Electronics.