Integration of Wide Bandgap semiconductors for Embedded Motor Drives

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The project will address the potential benefits of using wide bandgap semiconductors within embedded drives, key tasks to analyse:- Effect of low loss switching devices on efficiency.- Analyse the benefits of using multi-pole motors with respect to partitioning of power converters.- Analyse the benefits of using multi-pole motors with respect to higher power density.- Analyse any motor power density increases by using higher number of pole pairs and increased electrical fundamental frequency.- Look into the thermal management and tradeoff with reduced switching losses and reduced heatsink size.- Examine the use of higher switching frequencies and the effect on the input filter size and cost.- Create a report outlining the above to be used as a technology gate to decide the route forward to real demonstration.- Develop a demonstrator to explore in practice the tradeoffs and algorithms developed above.This research project will mostly focus on exploring different topological arrangements of power semiconductor and passive devices to facilitate the integration of the power converter with the electrical machine thus saving significant material and cabling in a typical propulsion system. These different topologies will utilize the fast switching, low loss, and high-temperature capabilities of wide band gap semiconductors in order to reduce the size of the power converter. The topological research shall also consider the requirements of the motor and mitigate and control the damaging effects of the high dV/dT stress that the wide band-gap can potentially cause. New methods of packaging and integration of semiconductors, passives and motor windings will also be considered to enable cost effective ways to realise the integrated drive structures.