journal article·2024-02-01Open access

Comparison and research on load characteristics of PM in different permanent magnet synchronous machines

Ping Zheng, Xiaoyu Liang, Mingqiao Wang, Jialin Gao, Wanquan Li

AIP Advances· Volume 14· Issue 2

Abstract

PM enable PMSMs to have higher torque-density and power-density, however the machine performance is closely related to its load characteristics. When the armature excitation does not match the load characteristics of the PM and machine, it can lead to demagnetization and performance degradation. By comparing and studying the IPMSM’s and SPMSM’s load characteristics, a more reasonable machine topology of components such as PM can be obtained, and high-performance machines can be designed more efficiently. Based on the material characteristics of the PM, the armature reaction law of different machines and the demagnetization law of the PM at different current angles were analyzed. There are different magnetic field distribution patterns in IPMSM and SPMSM, and their different load characteristics are compared to study the methods for improving the anti-demagnetization ability of PMs based on different machine structures.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Electric Motor Design and Analysis · Magnetic Bearings and Levitation Dynamics · Magnetic Properties and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Electrical Engineering & Automation, Harbin Institute of Technology , Harbin 150001, China

Funding

National Natural Science Foundation of China · Heilongjiang Provincial Natural Science Foundation of China · Fundamental Research Funds for the Central Universities

References (11)

Show source-provided references
1. Demagnetization performance of a 7 MW interior permanent magnet wind generator with fractional-slot concentrated windings10.1109/tmag.2015.2442263 ↗
2. Characteristic analysis of partial demagnetization faults in surface mounted BLDC motors
3. Dynamic characteristic analysis of irreversible demagnetization in SPM- and IPM-type BLDC motors10.1109/tia.2016.2619323 ↗
4. Irreversible demagnetization of permanent magnet in a surface-mounted permanent magnet motor with overhang structure10.1109/tmag.2015.2476782 ↗
5. Demagnetization analysis of permanent magnets according to rotor types of interior permanent magnet synchronous motor10.1109/tmag.2009.2018661 ↗
6. Interdependence of demagnetization, loading, and temperature rise in a permanent-magnet synchronous motor10.1109/tmag.2009.2033592 ↗
7. The shape design of permanent magnet for permanent magnet synchronous motor considering partial demagnetization10.1109/tmag.2006.879077 ↗
8. A novel technique for two-phase BLDC motor to avoid demagnetization10.1109/tmag.2016.2521874 ↗
9. Anti-demagnetization analysis of fractional slot concentrated windings interior permanent magnet motor considering effect of rotor design parameters10.1109/tmag.2021.3090319 ↗
10. Anti-demagnetization capability research of a less-rare-earth permanent-magnet synchronous motor based on the modulation principle10.1109/tmag.2020.3019295 ↗
11. Optimal design of spoke-type IPM motor allowing irreversible demagnetization to minimize PM weight10.1109/access.2021.3070747 ↗