Load Frequency Control of a Single Area System Using Fuzzy Logic Controller and Comparison with Integral and PID Controller

Abstract

Today's power system is massive, complex and very dynamic. With innovations such as power electronics and renewable energy integration, the power system becomes more complex. Controlling the frequency with respect to load is most important in a power system because the system will lose its synchronism if the frequency changes. When the load demand is greater than the actual power generated, then the system frequency goes down and this condition is called under frequency condition. In some other cases when the load decreases then the system frequency will go up and this condition is called the over-frequency condition. In both cases, the system frequency fluctuates from its normal frequency range. This paper demonstrates the use of a fuzzy logic controller in a single area system to control the change in load frequency and a comparison with traditional (INTEGRAL AND PID) controllers. The simulation of the entire system is performed on the MATLAB Simulink.