An integrated motor drive with enhanced power density using modular converter structure
| Autor: | Abdalla Hussein Mohamed, Hendrik Vansompel, Peter Sergeant |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Technology and Engineering Stator Thermal Modelling Mechanical engineering Topology (electrical circuits) 02 engineering and technology 01 natural sciences law.invention GaN Motor Drives DESIGN law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Integrated Drives Wide Bandgap devices 010302 applied physics circumscribing polygon business.industry 020208 electrical & electronic engineering Axial flux machines Modular design Power density Motor drive Modular Drives Electromagnetic coil Magnet Inverter Junction temperature business |
| Zdroj: | 2021 IEEE International Electric Machines & Drives Conference (IEMDC) |
| Popis: | In this paper, an integrated motor drive with modular converter structure is analysed with different number of converter modules per phase. The integration concept is realized by designing a housing structure with a flat outer surface and a circular inner surface with a cooling channel in between. The converter modules are mounted on the outer flat surface and the stator components are attached to the inner surface. This integration topology is applied on a fifteen stator coil concentrated winding permanent magnet axial flux machine. The converter modules are implemented as half-bridge inverter using Gallium Nitride (GaN) technology. The cooling structure is optimized using computational fluid dynamics (CFD) simulations. The maximum thermally safe current that can be injected by one inverter module is computed. The maximum winding current is also calculated. Parallel connection of the inverter modules is suggested to maximize the thermal utilization of the windings while keeping the inverter switches junction temperature under the rated value. The CFD based computations are validated with experimental measurements. |
| Databáze: | OpenAIRE |
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