Power Quality Analysis and Its Enhancement of Microgrid Integrated with Distributed Energy Resources

In future power system, the penetration level of Renewable Energy Sources (RES) at distribution side will be at higher range because of its technical and environmental benefits. As these RES are intermittent in nature, integration cannot be done directly with the system means which needs indirect coupling through power converters. It is well known that Power converters placement at larger scale in distribution system leads to Power Quality (PQ) issues, hence in this paper Microgrid (MG) is created at distribution level with the penetration of RES and Total Harmonics Distortion of voltage and current generated are studied and mitigated when MG operating in both Grid connected & islanded mode. In this study standard IEEE12 bus test system and RES models (Photo Voltaic & wind-type1) are considered and analysis is carried out using MATLAB/SIMULINK software package.