The application of ANN technique to load-frequency control for three-area power system

This paper includes an application of layered artificial neural network controller to study load-frequency control problem in power system. The control scheme guarantees that steady state error of frequencies and inadvertent interchange of tie-lines are maintained in a given tolerance limitation. The proposed control has been designed for a three-area interconnected power system that two areas include steam turbines and the other area includes a hydro turbine. Only one artificial neural network (ANN) controller, which controls the inputs of each area in the power system together, is considered. In the study, back propagation-through-time algorithm is used as neural network learning rule. The performance of the power system is simulated by using conventional integral controller and ANN controller, separately. By comparing the results for both cases, the performance of ANN controller is better than conventional controllers.