ABSTRACT
In addition to traditional battery electric vehicles (BEVs), fuel cell vehicles (FCVs) are also electric vehicles with hydrogen as the energy storage to supply energy to propel the vehicle. Hydrogen fuel cell vehicles have the benefits of no leakage and electrolyte freeze concerns in winter as in BEVs. Also, fuel cells can be used in BEVs as a range extender making mixed-source EVs. In addition, there are low battery voltage BEVs that require two-stage inverters with first stage dc/dc converter for voltage gain before converting it to AC through dc/ac traction inverter. In addition, for rural areas, solar-based 2-wheelers are gaining attention. Solar and low voltage battery based EVs are making their way through spin-off companies to rural and agricultural areas. All such vehicles require voltage gain before integrating to the traction inverter. Current-fed dc/dc converters are boost derived converters and are suitable for such applications. In fact, current-fed converters have been justified for fuel cell applications. This Chapter will discuss the advanced current-fed dc/dc converter topologies for FCVs. Low voltage BEVs, and solar hybrid vehicles.
