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A Newly Constructed of Renewable Energy Micro Grid using FUZZY Logic Technique

Author : K.S.Srikanth and Indranil Saaki

Pages : 1701-1707
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Three Phase ac power systems have existed for over 100 years due to their efficient transformation of ac power at different voltage levels and over long distance as well as the inherent characteristic from fossil energy driven rotating machines. The proposed system presents power-control strategies of a grid-connected Micro grid generation system with versatile power transfer. This Micro grid system allows maximum utilization of freely available renewable energy sources like wind and photovoltaic energies. For this, an adaptive MPPT P&O Controller along with standard perturbs and observes method will be used for the system. In This paper proposes a ac/dc micro grid to reduce the processes of multiple dc–ac–dc or ac–dc–ac conversions in an individual ac or dc grid. The Micro grid consists of both ac and dc networks connected together by multi-bidirectional converters. AC sources and loads are connected to the ac network whereas dc sources and loads are tied to the dc network. Energy storage systems can be connected to dc or ac links. The proposed Micro grid can operate in a grid-tied or autonomous mode. The coordination control algorithms are proposed for smooth power transfer between ac and dc links and for stable system operation under various generation and load conditions. This Micro grid system operates under normal conditions which include normal room temperature in the case of solar energy and normal wind speed at plain area in the case of wind energy. The Power Balancing Control simulation results are presented to illustrate the operating principle, feasibility and reliability of Micro grid proposed system.

Keywords: Energy management, grid control, grid operation, micro-grid, PV system, wind power generation, Fuzzy logic, UPQC, Power, Fuel cell

Article published in International Journal of Current  Engineering  and Technology, Vol.3,No.5(Dec- 2013)



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