Design and Optimization of E-Core Integrated Flux-Switching Motor-Compressor

An integrated motor-compressor is designed in this work which can provide motoring function with compressing function at the same time. The integrated motor-compressor needs to be capable of driving multiple stages of the axial-flow compressor. An E-shaped stator core with large slot opening and less magnet is implemented for the integrated motor-compressor to achieve this requirement. The proposed machine with E-shaped stator core is compared with 12-slot 10-pole integrated motor-compressor on both electromagnetic and thermodynamic aspects. Design optimization on the slot opening and mid-tooth thickness of the E-core stator is investigated. The slot/pole combinations of the E-core-based integrated motor compressor are also analyzed.