Gain Schedule PI Fuzzy Load Frequency Control for Two-Area Electric Power System: Load Frequency Control

Tawfiq H. Elmenfy
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Tawfiq H. Elmenfy: University of Benghazi, Libya

International Journal of Energy Optimization and Engineering (IJEOE), 2020, vol. 9, issue 3, 39-50

Abstract: The use of proportional integral (PI) load frequency control (LFC) to ensure the stable and reliable operation of electric power system is practical important. Any imbalance between synchronous generators and consumption loads will cause frequency unstable within the complete power system. The purpose of the load frequency control (LFC) is to keep the power system frequency and the inter-area tie power as near equilibrium point. This article introduces a gain schedule PI fuzzy load frequency control (GLFC) applying to two area electric power system. The GLFC consists of two level control systems, where the PI controller in the conventional form and its parameters are tuned in real time by fuzzy system. A fuzzy rule base is constructed in the form set of IF-THEN that describe how to choose the PI parameters under different operating conditions. The simulation has been conducted in MATLAB Simulink package. The effectiveness of the GLFC is measured by comparison with conventional PI load frequency controller.

Date: 2020
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