Experimental analysis of a new type of harmonic-excited synchronous machine with special consideration of the core losses
- In this work, a brushless, harmonic-excited wound-rotor synchronous machine without any auxiliary windings which can provide full torque at startup is investigated experimentally. The excitation power is transferred inductively by superimposing an additional harmonic field of different pole-pair number on top of the airgap field. This is achieved by feeding the parallel paths of the stator and rotor winding separately. A prototype for the harmonic-excited synchronous machine has been constructed and experimental results are presented to verify the concept. The main loss contributors are identified and the importance of considering core losses under harmonic excitation is discussed. A general analytical model for harmonic excited synchronous machines is proposed which enables a quick estimation of the iron core flux densities and the core losses generated by the additional harmonic currents.
| Author of HS Reutlingen | Schullerus, Gernot |
|---|---|
| DOI: | https://doi.org/10.1109/ICEM51905.2022.9910845 |
| ISBN: | 978-1-6654-1432-6 |
| Erschienen in: | 2022 International Conference on Electrical Machines (ICEM), 5-8 September 2022, Valencia, Spain, proceedings |
| Publisher: | IEEE |
| Place of publication: | Piscataway, NJ |
| Document Type: | Conference proceeding |
| Language: | English |
| Publication year: | 2022 |
| Tag: | brushless machines; core losses; harmonic excitation; inductive power transmission; synchronous machine |
| Page Number: | 7 |
| First Page: | 2087 |
| Last Page: | 2093 |
| DDC classes: | 600 Technik |
| Open access?: | Nein |
| Licence (German): |  In Copyright - Urheberrechtlich geschützt |
