1. UPE Drives theme Giovanni Lo Calzo Gaurang Vakil University of Nottingham PEMC Group WP2: Converter Topologies for High Speed Drives Drives Topologies and Machine Losses Modelling for High Frequency Drives

2. Project Plans & Objectives  Utilise high switching frequency drives toward improving in power density  Identify optimal drives topologies  Machine losses modelling to be used in conjunction with PE modelling to evaluate drive efficiency and performances at drive simulation level  Machine and PE prototypes building in order to test different topologies and validate simulations results

3. Work done so far – Drives Topologies

5. Work done so far – Machine Losses Modelling

6. Potential Outcomes & Exploitation Plans  Identify novel drive topology to improve power density and overall efficiency  Machine losses modelling to be used directly in Simulink/Plecs simulations without the need of FEM post analysis  Evaluation of the efficiency of the complete drive topology (PE + machine) with only one tool  Evaluation of the effect of high switching frequency on machine losses profile  Dynamic switching frequency variation to seek for best overall efficiency at different loads