Dual rotor flux switching permanent magnet machines with phase-group concentrated-coil windings for high performance

2016 ◽  
Vol 52 (1-2) ◽  
pp. 599-607 ◽  
Author(s):  
Wenliang Zhao ◽  
Byung-Il Kwon
Keyword(s):  
Permanent Magnet ◽  
High Performance ◽  
Permanent Magnet Machines ◽  
Phase Group ◽  
Rotor Flux

scholarly journals Performance Analysis of Synchronous Reluctance Motor with Limited Amount of Permanent Magnet

Energies ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3504 ◽  
Author(s):  
Ngo ◽  
Hsieh
Keyword(s):  
Performance Analysis ◽  
Permanent Magnet ◽  
Motor Performance ◽  
High Performance ◽  
Field Weakening ◽  
Synchronous Reluctance Motor ◽  
Reluctance Motor ◽  
Rotor Flux ◽  
Rotor Type

This paper analyzes the performance of a synchronous reluctance motor (SynRM) equipped with a limited amount of a permanent magnet (PM). This is conventionally implemented by inserting PMs in rotor flux barriers, and this is often called the PM-assisted SynRM (PMa-SynRM). However, common PMa-SynRMs could be vulnerable to irreversible demagnetization. Therefore, motor performance and PM demagnetization should be simultaneously considered, and this would require the PM to be properly arranged. In this paper, various rotor configurations are carefully studied and compared in order to maximize the motor performance, avoid irreversible demagnetization and achieve higher PM utilization. Moreover, the field weakening capability is investigated and improved by regulating armature excitation. A particular rotor type with flux intensification was found to possess higher PM utilization, lower demagnetization possibility with fairly high performance. Thus, suitable rotor configurations are recommended for certain applications.

scholarly journals Permanent Magnet Machines for High-Speed Applications

2022 ◽  
Vol 13 (1) ◽  
pp. 18
Author(s):  
Tianran He ◽  
Ziqiang Zhu ◽  
Fred Eastham ◽  
Yu Wang ◽  
Hong Bin ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
High Speed ◽  
High Performance ◽  
Single Phase ◽  
High Efficiency ◽  
Permanent Magnet Machines ◽  
Advantages And Disadvantages ◽  
Three Phase ◽  
Parasitic Effects ◽  
Rotor Dynamic

This paper overviews high-speed permanent magnet (HSPM) machines, accounting for stator structures, winding configurations, rotor constructions, and parasitic effects. Firstly, single-phase and three-phase PM machines are introduced for high-speed applications. Secondly, for three-phase HSPM machines, applications, advantages, and disadvantages of slotted/slotless stator structures, non-overlapping/overlapping winding configurations, different rotor constructions, i.e., interior PM (IPM), surface-mounted PM (SPM), and solid PM, are summarised in detail. Thirdly, parasitic effects due to high-speed operation are presented, including various loss components, rotor dynamic and vibration, and thermal aspects. Overall, three-phase PM machines have no self-starting issues, and exhibit high power density, high efficiency, high critical speed, together with low vibration and noise, which make them a preferred choice for high-performance, high-speed applications.

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