Distributed generation (DG) provides stability to system reducing
the power generation from plants running with fossil fuels. With the
advancements in power electronics, integration of distributed generation
became simple and cost effective. This paper illustrates the scheme of
integrating of photo-voltaic (PV) system as distributed generation to microgrid.
PV system is integrated to grid with three-level inverter and five-level
cascaded H-Bridge inverter to invert the type of supply synchronized to grid.
Inverter will be controlled with simple current control strategy. Results were
presented for the proposed work considering cases like DG sending only active
power and DG injecting both active and reactive power through three-level and
five-level inverter topologies. Total harmonic distortion in source current and
voltage of grid reduce when using multi- level topology. Rate of change in
voltage also reduces resulting in reduced filters when level at output of inverter
Keywords - Distributed generation (DG), integration, photo-voltaic (PV),
 A. Maroufmashat et al., "Optimization of renewable powered hydrogen micro-grid; taking in to account economic criteria," 2016 IEEE
Smart Energy Grid Engineering (SEGE), Oshawa, ON, Canada, 2016, pp. 252-256.
 L. Wang, C. Cao and B. Chen, "Model-based micro-grid modeling and optimal PEV charging control," 2016 12th IEEE/ASME International
Conference on Mechatronic and Embedded Systems and Applications (MESA), Auckland, New Zealand, 2016, pp. 1-6
 A. Mudgal, J. Srivastava, K. Kumar and V. Dutta, "Implementation of PV-FC hybrid micro grid with grid interactive feature," 2016 IEEE
6th International Conference on Power Systems (ICPS), New Delhi, India, 2016, pp. 1-4.
 N. Mourad and B. Mohamed, "Impact of increased distributed photovoltaic generation on radial distribution networks," 2016 International
Conference on Control, Decision and Information Technologies (CoDIT), Saint Julian's, Malta, 2016, pp. 292-295
 N. G. Paterakis, O. Erdinç, I. N. Pappi, A. G. Bakirtzis and J. P. S. Catalão, "Coordinated Operation of a Neighborhood of Smart
Households Comprising Electric Vehicles, Energy Storage and Distributed Generation," in IEEE Transactions on Smart Grid, vol. 7, no. 6,
pp. 2736-2747, Nov. 2016.
 K. C. Tseng; C. A. Cheng; C. T. Chen, "High Step-Up Interleaved Boost Converter for Distributed Generation Using Renewable and
Alternative Power Sources," in IEEE Journal of Emerging and Selected Topics in Power Electronics , no.99, 2016.
 A. Salem, E. M. Ahmed, M. Ahmed, M. Orabi and A. B. Abdelghani, "Reduced switches based three-phase multi-level inverter for grid
integration," Renewable Energy Congress (IREC), 2015 6th International, Sousse, 2015, pp. 1-6
 S. H. Shehadeh, H. H. Aly and M. E. El-Hawary, "Photovoltaic multi-level inverters technology," Electrical and Computer Engineering
(CCECE), 2015 IEEE 28th Canadian Conference on, Halifax, NS, 2015, pp. 648-655