Abstract
Gravitational search algorithm (GSA) based Proportional-Integral (PI) controller for Automatic Generation Control (AGC) of an interconnected power system are analyzed the performance of the proposed two area non-reheat thermal system. GSA optimization employed to search for optimization controller parameters by minimizing the objective function. The objective function uses Integral Time multiply Absolute Error (ITAE) in order to increase the performance of the controller. The performance of the proposed PI controller is compared by tuning the GSA technique and best controller is compared to GA optimized PI controller over wide range of operating condition and change in system parameter.
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