AC bus distributed bidirectional contactless charging station

摘要

The demand for more Electric Vehicles (EVs) will increase the power distribution requirements of future EV charging stations (CS). To increase safety and reduce CS maintenance time, the CSs have to be developed with contactless systems. The work presented in this paper describes a parallel connected multi-point bidirectional contactless charging station. An operating framework of CS is described to manage the interactions of EVs between parallel connections of multiple charging systems that share a common ac bus network. The individual charging systems are controlled to control the charging and discharging process of each EVs and avoids distribution grid congestion, while satisfying the requirements of EV owners. A control strategy is used, which estimates the line voltage, frequency and state of charge levels of EVs and manage the parallel ac lines by scheduling EVs in the CS. The complete CS having ten EVs is validated using detailed simulations.