Simulating the load sharing between a fuel cell & ultracapacitor interfaced using a boost converter

Fuel cells are ideal candidates for use in hybrid electric vehicles due to their high energy density. However the power requirements of these automobiles cannot be satisfied by the slow transient response of fuel cells. Ultracapacitors however have high power density and provide good transient characteristics. The behavior of the two in tandem is studied through simulations. The fuel cell and ultracapacitor are initially sized for the desired load and then the active load sharing between the two is examined. The model is designed to simulate any desired load power profile within the bounds of fuel cell and ultracapacitor ratings. The purpose of this model is to provide researchers with a fuel cell - ultracapacitor based platform for hybrid electric vehicles.