Automatic Voltage Regulator

A power system is important for today’s infrastructure which is controlled by various methods and to handle a system smartly it is necessary to know about its various parameters and role played by them. The objective of this project is to improve the stability by using power system stabilizer, automatic voltage regulator and Governor. In power system it is necessary to achieve effective stability and good regulation of various devices and hence AVR are extensively used. But AVR should be coupled with any appropriate controller to overcome slow response due to disturbance which will provide efficient stability. In power generating system, AVR controller with PID is very necessary for controlling the voltage of power generation system due to change in load. Voltage fluctuation is mainly due to the variation in the load and if there is a variation in the voltage then it can damage the equipment so it is necessary to stabilize the voltage, so AVR is used in the system. The systems modeled consist of the amplifier, exciter, sensor & stabilizer or PID controller. Simulation results of the AVR system using MATLAB are presented.