Modeling and Control of BidirectionalDC DC Converter Fed PMDC Motor(for HEV Applications)

Abstract

The present work aims at designing and modeling of a bidirectional dc dc converter for driving a Permanent Magnet DC (PMDC) motor for Hybrid Electric Vehicle (HEV) and Electric Bikes (EV)application. Permanent Magnet Brushed DC (PMBDC) motors and Permanent Magnet Brushless DC (PMBLDC) motors are the most popular options that are used as a hub motors for the integration of an electric bicycle and bikes. But despite of the simple controllers and low cost of the PMDC motors its lower efficiency sets it back in choice in the present scenario as compared to the BLDC motors. The present design aims at improving the efficiency of the PMDC motor traction drive system by the incorporation of the bidirectional dc dc converter between the electrical source and the traction motor which in addition to its primary function of providing the traction energy, also facilitates the energy regeneration during braking (in the case of HEV and EV) and during the motion along down the slope(in case of a pedaled electric bicycle).