A FUZZY LOGIC BASED AUTOMATIC VOLTAGE REGULATOR FOR ALTERNATOR TERMINAL VOLTAGE AND REACTIVE POWER CONTROL

📄 Project Abstract

The frequency of a power system is affected by changes in real power while the terminal voltage magnitude is affected by changes in reactive power. The load frequency control loop (LFC) controls the real power and frequency while the Automatic voltage regulator (AVR) controls the reactive power and voltage magnitude of an alternator. The role of the AVR is to hold the terminal voltage magnitude of a synchronous generator at a specified level. As the reactive load of the consumers increases beyond the rated value of the generator, the result will be a decrease in the terminal voltage of the generator. Most of the appliances therefore cannot be powered hence the need to bring the voltage level back to the specified level. The conventional control approach to the terminal voltage and reactive power regulation involves the development of the linear equations of the AVR models and then using the appropriate control theory to develop the controller. This conventional modeling and control app...