Technical and Economic Analysis of Smart Micro-Grid Renewable Energy Systems: An Applicable Case Study
Renewable energy-based micro-grids are presently attracting significant consideration. The smart grid system is presently considered a reliable solution for the expected deficiency in the power required from future power systems. The purpose of this study is to determine the optimal components sizes of a micro-grid, investigating technical and economic performance with the environmental impacts. The micro grid load is divided into two small factories with electricity, both on-grid and off-grid modes are considered. The micro-grid includes photovoltaic cells, back-up diesel generator wind turbines, and battery bank. The estimated load pattern is 76 kW peak. The system is modeled and simulated by MATLAB/Simulink tool to identify the technical issues based on renewable power generation units. To evaluate system economy, two criteria are used: the net present cost and the cost of generated electricity. The most feasible system components for the selected application are obtained, based on required parameters, using HOMER simulation package. The results showed that a Wind/Photovoltaic (W/PV) on-grid system is more economical than a Wind/Photovoltaic/Diesel/Battery (W/PV/D/B) off-grid system as the cost of generated electricity (COE) is 0.266 $/kWh and 0.316 $/kWh, respectively. Considering the cost of carbon dioxide emissions, the off-grid will be competitive to the on-grid system as COE is found to be (0.256 $/kWh, 0.266 $/kWh), for on and off grid systems.
Keywords: Optimum energy systems, renewable energy sources, smart grid, micro-grid system, on- grid system, off-grid system, modeling and simulation, economical evaluation, net present value, cost of energy, environmental impacts.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.2643828Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1369
 Li. Peng and G. Yan, "Clean Energy Grid-Connected Technology Based on Smart Grid", Energy Procedia, a Vol.12, pp.213 – 218, 2011.
 Lidula NWA and Rajapakse AD, "Micro-grids research: a review of experimental micro-grids and test systems", Renew Sustain Energy Rev, a Vol.15, pp.186–202, 2014.
 Huang J., "A review on distributed energy resources and micro-grid", Renew Sustain Energy Rev, a Vol.12, pp.2472–83, 2012.
 Taha S, "Recent developments in micro-grids and example cases around the world—a review", Renew Sustain Energy Rev, a Vol.15, pp. 30–41, 2011.
 P. Piagi and R. H. Lasseter, "Autonomous Control of Micro-grids", in Proc. IEEE-PES06, 2006, IEEE, 2014.
 R. H. Lasseter, "Micro-grids" (distributed power generation), IEEE Power Engineering Society Winter Meeting, Vol.01, pp.146-149, Columbus, Ohio, Feb 2014.
 M.Barnes, A. Dimeas, A. Engler, C. Fitzer, N. Hatziargyriou, C. Jones, S. Papathanassiou, M. Vandenbergh, "Micro-grid laboratory facilities", International Conference on Future Power System, November 2015.
 M. Barnes, J. Kondoh, H. Asano, and J. Oyarzabal, "Real-World Micro-Grids- an Overview", in IEEE Int. Conf. Systems of Systems Engineering, pp.1-8, 2014.
 A. Fathima, and K. Palanisamy, ''Optimization in micro-grids with hybrid energy systems – A review'', Renewable and Sustainable Energy Reviews, a Vol. 45, pp. 431-446, 2015.
 R. Nazir, H. D. Laksono, E. P. Waldi, E. Ekaputra, and P. Coveriaa,'' Renewable Energy Sources Optimization: A Micro-Grid Model Design'', Energy Procedia, a Vol. 52, pp. 316 – 327, 2014.
 Hanieh Borhanazad, Saad Mekhilef, Velappa Gounder Ganapathy, Mostafa Modiri-Delshad, and Ali Mirtaheri, '' Optimization of micro-grid system using MOPSO'', Renewable Energy, a Vol. 71 , pp. 295–306, Nov. 2014.
 Wei Zhou, Chengzhi Lou, Zhongshi Li, Lin Lu, and Hongxing Yang, 'Current status of research on optimum sizing of stand-alone hybrid solar–wind power generation systems', Applied Energy, a Vol. 87, pp. 380–389, September 2009.
 Derek Chan, Mark Cameron and Younju Yoon, "Implementation of micro energy grid: A case study of a sustainable community in China", Energy and Buildings, a Vol.139, pp.719–731, 2017.
 Moataz Elsied, Amrane Oukaour, Hamid Gualous and Ottavio A. Lo Brutto, "Optimal economic and environment operation of micro-grid power systems", Energy Conversion and Management, a Vol. 122, pp.182–194, 2016.
 Map of Nubaryyah, Egypt," (Online) Available: http://Nobarya.alarmforce.com/blog/wpcontent/uploads/nubriyah.jpg.
 Jima, T., ''Simulation and Optimization of Wind Turbine, Solar PV, Storage Battery and Diesel Generator Hybrid Power System for a Cluster of Micro and Small Enterprises Working on Wood and Metal Products'', Addis Ababa Institute of Technology School of Graduate Studies Energy Center, 2013.