Modeling of an electric drive for a HEV supervisory level power flow control problem

In this paper, a supervisory level power flow control model for a parallel hybrid electric vehicle (HEV) is developed. The HEV studied utilizes power flow from an internal combustion engine ICE and from an electric-motor-generator, EM-GEN, (30 kW) and battery pack consisting of thirty 25 Ah 12 V lead acid batteries connected in series. The EM-GEN unit is an induction machine operated under maximum torque/amp control. This paper summarizes the non EM-GEN aspects of the HEV power flow control model developed earlier but focuses primarily on the development of a viable EM-GEN model amenable to a supervisory level power flow control problem.