Fault-tolerant performance comparisons between external and internal rotor PMa-SynRMs
| Autor: | Akm Arafat, Sai Sudheer Reddy Bonthu, Seungdeog Choi, Md. Zakirul Islam, Md. Tawhid Bin Tarek |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Rotor (electric) Magnetic reluctance Computer science 020208 electrical & electronic engineering Torque density 02 engineering and technology Fault (power engineering) 01 natural sciences law.invention Traction motor law Control theory Magnet 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Torque Torque ripple |
| Zdroj: | 2018 IEEE Applied Power Electronics Conference and Exposition (APEC). |
| Popis: | This paper presents a detailed comparison between fault-tolerant five-phase external and internal rotor permanent magnet assisted synchronous reluctance motors (PMa-SynRMs). Critical applications such as electric vehicles and more electric aircraft demand high power density and fault-tolerant capability in their traction motor designs. Five-phase external rotor motors are proposed to generate higher torque density compared to conventional internal rotor motors of same size. However, under fault conditions such as single-phase, two-phase adjacent, and two-phase non-adjacent faults, the fault-tolerant capability of such high torque density motors needs to be investigated. Furthermore, severe torque pulsations under such faults have to be restrained in traction motors. In this study, five-phase external rotor PMa-SynRMs are optimally designed to generate higher torque density with lower torque ripple and better fault tolerant capability when compared to a same size five-phase internal rotor PMa-SynRM. Finite element simulations are carried out to compare the performance of external rotor PMa-SynRMs under single-phase, two-phase adjacent and two-phase non-adjacent faults. Experiments under no-load conditions and load are carried out to validate the simulations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|