Abstract
In this paper, a novel E-core dual-permanent magnet flux-switching (DPM-FS) machine is proposed for traction applications in electrified transportation. The key is that an extra set of permanent magnet (PM) source is artfully inserted into stator slot openings, which has a parallel main flux path with spoke-type PMs, significantly improving the utilization ratio of the stator core as well as alleviating the magnetic saturation in the iron core. As a result, the proposed machine exhibits a bidirectional flux improvement ability of multiple working harmonics. The working harmonics of air-gap flux density with positive contributions to torque production are greatly enhanced, and those with negative influences are effectively suppressed. Compared with a conventional E-core FSPM machine with the same PM volume, the proposed machine exhibits a 42.8% higher open-circuit back electromotive force (EMF) and a 38.5% higher average output torque. A magnetomotive force (MMF)-permeance model is established to investigate the working principle of the proposed machine. Furthermore, the effectiveness of the proposed design is verified by using finite element analysis (FEA) and experimental results.
| Original language | English |
|---|---|
| Article number | 10182282 |
| Pages (from-to) | 1 |
| Number of pages | 1 |
| Journal | IEEE Transactions on Transportation Electrification |
| DOIs | |
| Publication status | Accepted/In press - 2023 |
Keywords
- Bidirectional flux improvement
- Couplings
- finite element analysis
- flux modulation principle
- flux-switching machine
- Rotors
- Saturation magnetization
- Stator cores
- Stator windings
- Topology
- Torque
- torque density
ASJC Scopus subject areas
- Automotive Engineering
- Transportation
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering