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- Title
Torque enhancement of dual three‐phase PMSM by harmonic injection.
- Authors
Hu, Yashan; Huang, Keyuan; Li, Xuefei; Luo, Derong; Huang, Shoudao; Ma, Xiandong
- Abstract
The torque enhancement of the dual three‐phase permanent magnet synchronous machine (DT‐PMSM) drive system by full exploitation of flux‐linkage and current harmonics is comparatively studied in this study. The torque capability of DT‐PMSM is previously evaluated with strategies of harmonics utilisation, i.e. strategy 1 of third harmonic utilisation and strategy 2 of fifth and seventh harmonic utilisation, which can extend the torque capability by 18.2 and 9.0%, respectively. However, the full exploitation of harmonics including third, fifth, and seventh harmonics in the dual three‐phase system is not addressed. In this study, the strategy 3 of third, fifth, and seventh harmonic utilisation is also included. Its corresponding harmonic current control is proposed and the average torque and harmonic torque are analysed in detail. Based on a test rig with existing prototype DT‐PMSM, the torque with strategy 3 is increased up to 26.5%, which is superior to the previous strategies.
- Publication
IET Electric Power Applications (Wiley-Blackwell), 2020, Vol 14, Issue 9, p1735
- ISSN
1751-8660
- Publication type
Article
- DOI
10.1049/iet-epa.2019.0882