Fuel vehicle improvement using high voltage gain in DC-DC boost converter

Fuel cell electric vehicles (FCEV) are becoming increasingly popular among manufacturers as carbon dioxide emissions and fuel economy rules have become more stringent. Fuel-cell vehicles often have lower output voltages than those required by the DC bus; therefore, the output voltage decreases rapidly as the output current increases. In this critical circumstance, it is essential to have a DC-DC converter for FCEVs with a high switching frequency and voltage gain. Furthermore, DC-DC booster converters are used in FCEV systems to achieve a high voltage gain. Over a 40 V input range, MATLAB tests the modified converter for gains of approximately five times the input voltage gain. Furthermore, when the fuel cell was operational, a converter efficiency of approximately 90% was measured.