Modeling and control of a dual active bridge for energy storage in DC microgrid applications
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Universidade Federal de Minas Gerais
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In the present paper the modeling and control of a Dual Active Bridge (DAB) converter with input and output filters for energy storage systems (ESS) applied to DC microgrids has been described. The small-signal equivalent models are derived from the averaged circuit of the converter. Since the DAB converter with filters exhibit distinct transfer functions for charge and discharge modes, a double loop control and a method for smooth transition have been proposed. Simulations results are presented in order to evaluate the proposed control technique.
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Engenharia Elétrica, Energia - Fontes alternativas
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Dual active bridge converter, Distributed Energy Storage Units, Microgrid, DC microgrids, Microgrids , Integrated circuit modeling , Transfer functions , Bridge circuits , Voltage control , Analytical models , Frequency control, Dual Active Bridge , dc-dc converter , dc microgrid , energy storage, Dc Microgrid , Dual Active Bridge , DC Microgrid Applications , Transfer Function , Control Loop , Smooth Transition , Energy Storage Systems , Dcdc Converter , Small-signal Model , Charging Mode , Discharge Mode , Dual Active Bridge Converter , Phase Shift , Equivalent Circuit , Current Control , Nominal Value , State Machine , Voltage Control , PI Controller , Current Loop , Dc Bus Voltage , Average Current , Bidirectional Converter , Crossover Frequency , Open-loop Transfer Function , Continuous-time Model , Utility Grid , Capacitive Impedance , Phase-shift Modulation
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https://ieeexplore.ieee.org/document/7972461