REVIEW ON VOLTAGE SAG STUDIES FOR DISTRIBUTION GRID INCLUDING RENEWABLE ENERGY SOURCES

Several types of power quality problems can be observed in network. These include voltage unbalance, flicker, sags and swells, interruptions, current harmonics. Voltage sag is one the vital issues. This problem cause a decrease grid over short time horizon. The aforementioned caused by various circuits widespread use sensitive devices. have significant impact on systems. In this review article, different ways to prevent been presented considering literature studies. Concerning radial mesh grids, equipment used, methods all taken into account. these studies, articles about sag-related put groups based certain criteria. criteria consideration uncertainties electricity demand or renewable sources. recommendations related studies presented. suggestions are inclusion consumption energy source uncertainties. future works mentioned load system