PV-Battery Hybrid System for EV-Power Management Using Bidirectional DC Converters
摘要
In this paper, the solar-powered grid-connected electric vehicle charger is proposed in which charger is supported with synchronizing switching control in which the automatic disconnection is done without any disturbance and a DC link voltage regulation strategy is also used. This paper presents the hybrid model of PV/battery storage systems (BESS), and its smoothening control method for this DC converters with bidirectional current-control strategies is used to reduce the fluctuations in power. Two DC-DC converters are used; one is connected at PV side for obtaining the regulated boost voltage from PV, and another is bidirectional DC converter across BSSS to maintain the load bus voltage as well as to perform the charging and discharging operation of BSSS with fluctuating PV output. In designing of DC converter, tuning of L and C are the key feature. This work presents a comparative analysis of the two topologies of such converters having raw value of L-C component and with tuned one.