Analysis of unipolar leakage flux in series-hybrid permanent magnet machines
| Autor: | R. Deodhar, T. Sasaki, Zi-Qiang Zhu, Hao Hua, Adam Pride |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Rotor (electric) Astrophysics::High Energy Astrophysical Phenomena 020208 electrical & electronic engineering 05 social sciences Magnetic flux leakage Torque density 02 engineering and technology Magnetic flux law.invention Magnetic circuit Control theory law Magnet 0202 electrical engineering electronic engineering information engineering Astrophysics::Solar and Stellar Astrophysics Torque 0501 psychology and cognitive sciences 050107 human factors Magnetic levitation |
| Zdroj: | 2017 IEEE International Magnetics Conference (INTERMAG). |
| DOI: | 10.1109/intmag.2017.8008033 |
| Popis: | A series-hybrid variable flux memory (VFM) machine employing two different kinds of permanent magnets (PMs) on alternate rotor poles is investigated. This machine features controllable PM flux and good flux-weakening capability, as well as improved torque density. However, the unipolar end leakage flux occurs when the fluxes produced by two different kinds of PMs are not balanced. Therefore, the series connection of two kinds of PMs is analyzed, based on which the mechanism of unbalanced rotor poles and the unipolar end leakage flux are revealed. The rule of obtaining balanced poles is identified. A series-hybrid VFM machine prototype is fabricated and tested. |
| Databáze: | OpenAIRE |
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