Slotless and coreless machines with low inductance and low core losses are attractive for high speed and high power density applications. With the increase in fundamental frequency, typical drive implementations using conventional silicon-based devices are performance limited and also produce large current and torque ripples. This paper presents a systematic study of proposed drive configurations implemented with wide bandgap (WBG) devices in order to mitigate such issues for 2-phase very low inductance machines. Two inverter topologies, i.e., a dual H-bridge inverter with maximum redundancy and survivability and a 3-leg inverter for reduced cost, are considered. Feasible modulation schemes are derived based on theoretical analysis and the associated maximum output voltages are identified. Simulation and experimental results are provided to validate the feasibility of drive systems and the effectiveness of analysis.
|Title of host publication||ECCE 2020 - IEEE Energy Conversion Congress and Exposition|
|Number of pages||5|
|State||Published - Oct 11 2020|
|Event||12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020 - Virtual, Detroit, United States|
Duration: Oct 11 2020 → Oct 15 2020
|Name||ECCE 2020 - IEEE Energy Conversion Congress and Exposition|
|Conference||12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020|
|Period||10/11/20 → 10/15/20|
Bibliographical noteFunding Information:
ACKNOWLEDGMENT The support of National Science Foundation NSF Grant #1809876, of University of Kentucky, and of the L. Stanley Pigman endowment, Inc. is gratefully acknowledged.
© 2020 IEEE.
- Axial flux permanent magnet machines
- coreless machines
- electric drives
- operating range
- very low inductance machines
- wide bandgap
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Mechanical Engineering
- Control and Optimization
- Energy Engineering and Power Technology