IMPROVING ELECTRICITY QUALITY: REDUCING SAG WITH A FUZZY-BASED DYNAMIC VOLTAGE RESTORER

Abstract

This paper details the design and operation of a Dynamic Voltage Restorer (DVR) for use in the electrical power system during periods of low and high voltage. It makes use of fuzzy reasoning. All users of electrical energy are impacted by power system inefficiencies caused by the current magnitude of voltage changes. In this article, fuzzy logic is used to control the DVR during voltage sag and swell phases to improve electric power quality by minimizing harmonics, distortions, and voltage ripples.