Czasopismo | PRZEGLĄD ELEKTROTECHNICZNY | Rocznik 2020 - zeszyt 9

Equilibrium optimization algorithm for automatic generation control of interconnected power systems

10.15199/48.2020.09.30

Ahmed M. Agwa

nr katalogowy: 127824
10.15199/48.2020.09.30

Streszczenie

In the electric grid, when the loads increase, the frequency decreases and vice versa. Therefore a controller is utilized for maintaining the frequency within its boundaries via balancing the generation and the loads which is called automatic generation control (AGC) or load frequency control. While utilizing proportional?integral–derivative (PID) controller for AGC of interlinked power systems, then tuning its gains can be addressed as a nonlinear optimization issue. The objective function is intended to minimize the integral?time?absolute?errors of frequencies and tie?line power with subjection to group of PID controller gains constraints. In this article, an innovative equilibrium optimization algorithm (EOA) is proposed to tune gains of the required PID controller. Subsequently, a successive controller composed of PI and PD controllers are innovatively employed rather than the PID controller. The proposed approaches (EOA–PID) and (EOA–PI–PD) are applied to the two?region power systems when the load demand is changed in one and in two regions to legalize their efficacy. To validate the results of EOA–PID and EOA–PI–PD, they are compared with other approaches results. It is found that the EOA performs perfectly and owns a fine potency to tune controller gains with smaller errors than other methods while favoring the results of the EOA?PI?PD over EOA?PID.

Abstract

W artykule opisano system AGC sterujący częstotliwością przy zmiennym obciążeniu wykorzystujący sterownik PID. Opisano nowy algorytm wykorzystujący sterowniki PI i PD. Porównano różne metody sterowania częstotliwością. Algorytm optymalizacyjny do automatycznego sterowania .częstotliwości

Słowa kluczowe

Keywords

Bibliografia

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