Voltage Sag Enhancement By DVR Based On PQ Theory Using LabView

Abstract

The voltage sag condition in the power system has a direct effect on the quality of the power system quality. Voltage sag has a major effect on sensitive-voltage loads, causing a high inrush current, failure in the system, and price loss.The Dynamic Voltage Restorer (DVR) is regarded as one of the effective methods for controlling voltage in a power system. This paper describes the DVR control unit based on PQ theory to enhance the quality of the power system. The suggested control technique utilizes 3-phase compensation modules, based on the desired Sag condition. Also, this paper used LabView software to simulate the DVR for voltage variation in a power system.