If anyone wants to do p.h.d in power electronics & drives, what will be the hot topic to do research in this subject which is still unknown now-a-days. Help in this regard will be highly appreciated!
Study of the stresses effects (temperature, saturation, magnetic and electrical field, ...) on the reliability of the power electronic components in new generations (diode, transistor, ...).
Further ,search for sub topics in "driver-less cars" . There are a number of requirements for this and is the future. For example power supplies to nearly16 antennas . Power management would also be critical in this area and may have special demands on the power electronics wrt noise, interference , safety , security etc.