Automatic voltage regulator for synchronous generator

Abstract

Automatic Voltage Regulator (AVR) is necessary for all power stations producing electricity using synchronous generators (SGs) to ensure constant voltage for the grid connection. This final year report aims to design and implement an AVR based PIcharacteristics using Programmable Logic Controller (PLC) for the laboratory 1.5kVA salient pole Lab-volt SG. Primarily, a mathematical model for the SG is developed. Open circuit, short circuit and three-phase sudden short-circuit tests were realized for several tries in order to accurately identify the different parameters (Xd, X’d, X”d, Xq, T’d and T” , etc.) of the SG. Secondly, static self-excitation system is used where a part of the generated