Sliding mode controller based interleaved boost converter for fuel cell system

Electric vehicle (EV) is replacing conventional internal combustion engine based vehicle, as EV never produces greenhouse gasses and air pollutant. Electric vehicle is also known as green vehicle. Electric vehicle uses fuel cell as primary source of energy, whose transient response is very slow. Fuel cell based EV needed a step-up high power dc-dc chopper or converter for adjustment of dc bus or load voltage, load current, and load power to meet vehicle requirements. Main problem for designing a step-up converter or chopper for high power rating application is to deal with high current ratings at the input side of converter and high voltage ratings at the output side of converter. Interleaved boost converter (IBC) can deal with high power ratings application such as HEV. This paper presents control technique for boosting output voltage of FC using an interleaved boost converter and for controlling DC bus voltage under load variation condition sliding mode controller is used.