Published Paper Details:

This research paper presents decentralized control scheme for ALFC in a two area Power System by appreciating the performance of the methods in a single area power system. A number of modern control techniques are adopted to implement a reliable stabilizing controller. A serious attempt has been undertaken aiming at investigating the load frequency control problem in a power system consisting of two power generation unit and multiple variable load units. The robustness and reliability of the various control schemes is examined through simulations. The study has been designed for a two area interconnected power system. Using variable values for the proportional and integral gains in the controller unit, the dynamic performance of the system is improved. The used scheme is known as Automatic generation control. In which ,an interconnected system consisting of several pools, the role of the AGC is to divide the load among the system, stations and generators so as to achieve maximum economy and reasonably uniform frequency. Optimal Control System technique is applied in the control system design that is executed by minimizing the performance index of the system variables. In this paper , discuss the design of the optimal controllers for the linear systems with quadratic performance index, which is also referred to as the linear quadratic regulator. The objective of the optimal regulator design is to determine a control law u*(x,t) ,which can transfer the system from its initial state to the final state by minimizing the performance index. The performance index that is widely used is the quadratic performance index and is based on the minimum energy criterion. MATLAB codes are developed for OCS with Pole placement technique , the results of which are used to study the system step response. All these are through in Simulink based background.