Abstract

: This paper describes the simulation and modelling of a DC microgrid. The proposed microgrid system comprise of a wind turbine, solar PV array, battery storage systems and control and dc loads. The wind turbine is interfaced to the microgrid with MPPT to extract maximum power and PV array is connected via boost converter to the dc grid. A constant dc bus voltage is maintained with the help of controlled Battery Energy Storage System (BESS) which is connected via bidirectional buck-boost converter. The system is designed and analyzed in MATLAB-SIMULINK under different operating conditions of wind speed and solar irradiation and the results have been studied.

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