Design and control for Bidirectional AC-DC Converters for Plug-in Hybrid Electric Vehicle

R.Navaneethan, R.Illango, V.Prabaharan

Plug-in hybrid electric vehicles (PHEVs) are specialized hybrid electric vehicles that have the potential to obtain enough energy  for average daily  commuting  from batteries. These batteries would be charged from the power grid and would thus allow  for a reduction in the overall petroleum consumption. To implement the plug-in function, a single phase bidirectional ac-dc converter interfacing with the grid is essential. The implementation of a bidirectional ac-dc  converter  can allow  for  battery  recharge  from the grid, battery energy injection to the ac grid, and battery energy for ac power stabilization. In this paper, the basic requirements and specifications for PHEV bidirectional ac- dc converter designs are presented. Generally, there are two types   of   topologies   used   for   PHEVs:   an   independent topology and a combination topology that utilizes the drive motor’s   inverter.   Evaluations   of   the   two   converter topologies are analyzed in detail. The combination topology analysis is emphasized because it has more advantages in PHEVs, in respect to savings in cost, volume and weight.