Simulation of Automatic Load Frequency Control of Power System Area With/Without Conventional Control

The need for satisfactory operation of power stations running in parallel and the relation between system frequency and the speed of the motors has led to the requirement of close regulation of power system frequency. Power systems are frequently subjected to varying load demands. The perturbation in generated power must match the load perturbations if exact nominal state is to be maintained, such mismatches have to be corrected via supplementary control. In this paper work, a detailed investigation on simulation of load frequency control problem for single and double area power system has been carried out by considering PI control in both cases.