Loss Calculation and Thermal Analysis of Rotors supported by Active Magnetic Bearings for High-speed Permanent Magnet Electrical Machines

2015 ◽  
pp. 1-1 ◽  
Author(s):  
Ziyuan Huang ◽  
Jiancheng Fang ◽  
Xiquan Liu ◽  
Bangcheng Han
Keyword(s):  
Thermal Analysis ◽  
Permanent Magnet ◽  
High Speed ◽  
Electrical Machines ◽  
Magnetic Bearings ◽  
Active Magnetic Bearings ◽  
Loss Calculation

Design Aspects of High-Speed Electrical Machines With Active Magnetic Bearings for Compressor Applications

2017 ◽  
Vol 64 (11) ◽  
pp. 8427-8436 ◽  
Author(s):  
Nikita Uzhegov ◽  
Alexander Smirnov ◽  
Cheol Hoon Park ◽  
Ji Hun Ahn ◽  
Janne Heikkinen ◽  
...  
Keyword(s):  
High Speed ◽  
Electrical Machines ◽  
Magnetic Bearings ◽  
Active Magnetic Bearings

Design and analysis of a high speed double-sided axial flux permanent magnet motor suspended vertically by magnetic bearings

2020 ◽  
pp. 1-15
Author(s):  
Ömer Faruk Güney ◽  
Ahmet Çelik ◽  
Ahmet Fevzi Bozkurt ◽  
Kadir Erkan
Keyword(s):  
Permanent Magnet ◽  
High Speed ◽  
Permanent Magnets ◽  
Mechanical Analysis ◽  
Magnetic Bearings ◽  
Permanent Magnet Motor ◽  
Axial Flux ◽  
Element Analysis ◽  
Shaft System ◽  
Rotor Disk

This paper presents the electromagnetic and mechanical analysis of an axial flux permanent magnet (AFPM) motor for high speed (12000 rpm) rotor which is vertically suspended by magnetic bearings. In the analysis, a prototype AFPM motor with a double-sided rotor and a coreless stator between the rotors are considered. Firstly, electromagnetic analysis of the motor is carried out by using magnetic equivalent circuit method. Then, the rotor disk thickness is determined based on a rotor axial displacement due to the attractive force between the permanent magnets placed on opposite rotor disks. Hereafter, an analytical solution is carried out to determine the natural frequencies of the rotor-shaft system. Finally, 3D finite element analysis (FEA) is carried out to verify the analytical results and some experimental results are given to verify the analytical and numerical results and prove the stable high-speed operation.

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