Graham was born in Gravesend, England in 1984. He graduated with the first class honours degree of MEng in Electronic Engineering from the University of Warwick in 2006.

 

He returned to Warwick in the same year to commence a PhD in the area of new material devices in hybrid vehicle inverters. Hybrid-electric vehicles are becoming popular alternatives for conventional gasoline vehicles. By using the engine more effectively, by assisting acceleration, smoothing the load profile and recovering energy during braking, the fuel economy can be improved by using a smaller engine, while giving the same performance as a larger engine. The reduction in emissions offers the means to reduce the impact of road transportation on the environment. In a hybrid vehicle the motor drive inverter transfers power between the battery and the electric motor.

Operating the inverter at higher temperatures will allow a reduction in inverter size, and the possibility of sharing the water cooling circuit of the engine, reducing the space required by the electric drive system, its weight and its cost. New material devices, such as those fabricated in silicon carbide offer potential improvements over existing silicon devices in terms of reduced switching losses, increased operating temperatures and smaller size.

His research so far has contributed to a project conducted by Warwick University for Toyota Motor Company concerning the development of a fast inverter simulation tool capable of evaluating inverter designs using new material devices.

 

Future research will concern the channel mobility in silicon carbide devices.

 

 

Recent Publications