Load frequency control based on an improved Chimp optimization algorithm using adaptive weight strategy

Purpose This study aims to implement an improved version of the Chimp algorithm (IChimp) for load frequency control (LFC) of power system. Design/methodology/approach This work was adopted by IChimp to optimize proportional integral derivative (PID) controller parameters used for the LFC of a two area interconnected thermal system. Findings The supremacy of proposed IChimp tuned PID controller over Chimp optimization, direct synthesis-based PID controller, internal model controller tuned PID controller and recent algorithm based PID controller was demonstrated. Originality/value IChimp has good convergence and better search ability. The IChimp optimized PID controller is the proposed controlling method, which ensured better performance in terms of converging behaviour, optimizing controller gains and steady-state response.