Comparative Analysis of a Two Area Load Frequency Control for an Inter Connected Power System using PI & PID Controllers

The main objective of this paper is to maintain the constant frequency in two area interconnected power system by using controllers like P,PI & PID, and the performance of the PID controller has been compared with PI controllers under different loading conditions . It is shown from the graphs at Area1 & Area2 the Performance of PID controller is better than PI Controller. Existing Power system is dynamic one and it is interconnected with Multi areas.The main objective of a power system utility is to maintain continuous supply of power with an acceptable quality to all the consumers in the system, due to the dynamic changes in the load the frequency also changes and tie line power also changes. In order to maintain the power system frequency stable we introduce some controllers at the generating station. The above mentioned objective in carried successfully by using PI & PID controllers. This process can also be done in multi area power system. Initially we started with simple two area power system.