Paper Title
DESIGN AND SIMULATION OF LOAD FREQUENCY CONTROL IN MULTI-AREA POWER SYSTEM FOR UNCERTAIN LOAD CONDITIONS

Abstract
One of the most significant control issues in electric power systems is frequency management. A notable imbalance between generation and load is frequency instability. Therefore, an appropriate control system is required to regulate the actual power and frequency. This paper mainly focuses on the design of a three-area power system with a rated frequency of 50 Hz, which is used in Myanmar, using the fuzzy tuning PID method to control the load frequency. It involves applying mathematical formulas and models to analyze how an automatic generation control works. The plan is first implemented in a single area before being modified to a two-area and three-area networked systems with and without controllers, which are conventional PID and FPID controllers. The design of a three-area power system with load frequency management using a fuzzy-PID (FPID) approach is the primary subject of this paper. The comparisons for the steady-state error of the frequency deviation with the values of overshoot and underdamp. It also aims for possible variations in demand, whether they be abrupt increases or decreases, from one area to another. The output results are simulated with MATLAB/ SIMULINK. Keywords - Frequency Management, Fuzzy Logic-PID controller, Three-Area Power System, Tie-line.