Common DC Bus Charging System for EVs with Solar, Wind, Battery and Fuel Cell Sources

A promising solution to meet the growing charging demand of electric vehicles (EVs), is to incorporate renewable energy resources based charging stations. Thus, a cascaded IIR filter is utilized here for the EV charging system based on PV array, fuel cell stack and wind turbine sources. The satisfactory operation during the grid availability/unavailability is attained through the current and voltage based control mechanisms, along with the seamless transition capability via switching (STS-1/0) of the static transfer switches. Therefore, for adequate operation during modes associated with grid existence and non-existence, a cascaded IIR filter is utilized. Moreover, with respect to various weak grid conditions, adequate system performance is observed.