Load Frequency Control Charateristic of 2-Area Power Systems by Optimal PID Controller

최적PID 제어기에 의한 2지역 전력계통 부하주파수 제어특성에 관한 연구

This paper describes for the applicability of optimal PID controller to the load frequency control of 2-area power systems. The proposed optimal PID controllers are designed by the optimization technique of P.I.D's gain coefficients using the relatively ingeneous simplex method, and we have considered the system sensitivity for the optimal gains and the stable effects of systems to speed regulation changes. This PID controller for load frequency control systems with exciter shows better performances and robustness than conventional tie-line bias controller.