DETERMINATION OF CONTROLLER GAINS FOR FREQUENCY CONTROL BASED ON MODIFIED BIG BANG-BIG CRUNCH TECHNIQUE ACCOUNTING THE EFFECT OF AVR

This paper presents a methodology for determining optimized controllers gains for frequency control of two area system. The optimized gains have been obtained using a fitness function which depends on peak overshoot, steady state error, settling time and undershoot. The AVR loop has been included in optimization and its effect on optimized PID controller has been investigated. The optimization has been achieved using Big Bang-Big Crunch (BB-BC) optimization. The performance of controllers as obtained by BB-BC technique have been compared on two area system with that obtained using modified particle swarm optimization (PSO) and differential evaluation (DE) technique.

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