International Scientific Journal

Thermal Science - Online First

online first only

ACO technique optimized controller for frequency stabilization of an isolated power system with non-linearity

The Load Frequency Control (LFC) of a thermal power producing system, the Ant colony optimization (ACO) approach adjusted Proportional - Integral - Derivative (PID) controller is proposed. This work examines the single area thermal power system with/without Generation rate constraint (GRC). For emergency situations, a PID controller is developed and used to regulate power system characteristics. This study uses the ACO method with the Integral Time Absolute Error (ITAE) objective function to optimize controller gain values. In addition, the performance of the suggested approach is evaluated by introducing nonlinearity components to the power generating systems under study. Conventional and Particle swarm optimization (PSO) approach tuned controller response are compared with ACO. Fast settling with minimal peak and undershoots in the producing power supply of the system under emergency loading situations demonstrates the superiority of the proposed controller over competing controllers.
PAPER REVISED: 2023-09-15
PAPER ACCEPTED: 2023-10-03
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