Management and Control of a Bidirectional Electric Station in DC Microgrids

This paper presents a SoC-sharing function for a management of bidirectional electric station in the microgrids context. The algorithm proposed in this paper is able to execute fast or slow charges and discharges to the Electrical Vehicle (EV) battery according to the State of Charge (SoC) availability. Thus, through a Cascaded Interleaved Buck-Boost Converter, this management will also regulate the DC link voltage. A study of the model, control structure and management technique is presented. Finally, a series of stand-alone simulations validate this technique by using the PSIM® software package.