Modeling of Anti-Islanding Protection for Solar Energy-Based Microgrid

Abstract

Effective management of renewable energy resources becomes a key task with an increasing penetration at the distribution level. Renewable plants may be small or medium low voltage networks but consist of several sources and loads having a combined effect. Increasing interest and investment in renewable energy give rise to rapid development of high penetration solar energy. There are multiple ways to interface solar panel arrays with the power grid. A system can switch from a grid tie mode to an island mode of operation in the event of a utility grid fault. The active local passive approach is a point of common coupling taken into consideration for anti-islanding protection in integrated systems. This work analyzes the effect of grid tied PV systems, which can enhance power system reliability. A grid-connected PV system is modeled in PSCAD software to examine its operation and controlling aspects; however, system capacity sizing for the 5.03 kWp microgrid has been performed using PVsyst tools.