Researches on the suitability of switched reluctance machines and permanent magnet machines for specific aerospace applications demanding fault tolerance

2006 ◽  
Author(s):  
A. Schramm ◽  
D. Gerling
Keyword(s):  
Fault Tolerance ◽  
Permanent Magnet ◽  
Permanent Magnet Machines ◽  
Switched Reluctance ◽  
Aerospace Applications ◽  
Switched Reluctance Machines

scholarly journals A Permanent Magnet Assist, Segmented Rotor, Switched Reluctance Drive for Fault Tolerant Aerospace Applications

2019 ◽  
Vol 55 (1) ◽  
pp. 298-305 ◽  
Author(s):  
Sana Ullah ◽  
Steve P. McDonald ◽  
Richard Martin ◽  
Maamar Benarous ◽  
Glynn J. Atkinson
Keyword(s):  
Permanent Magnet ◽  
Fault Tolerant ◽  
Switched Reluctance ◽  
Aerospace Applications

scholarly journals Design And Rotor Geometry Analysis Of Permanent Magnet–Assisted Synchronous Reluctance Machines Using Ferrite Magnet

2015 ◽  
Vol 66 (6) ◽  
pp. 311-316 ◽  
Author(s):  
Zhiwei Zhang ◽  
Libing Zhou
Keyword(s):  
Permanent Magnet ◽  
Low Cost ◽  
Induction Machines ◽  
Synchronous Machines ◽  
Permanent Magnet Synchronous Machines ◽  
Switched Reluctance ◽  
Torque Density ◽  
Switched Reluctance Machines ◽  
Geometry Analysis ◽  
Electromagnetic Performance

Abstract Various electric machines can be the candidate for electric vehicles applications, including induction machines, permanent magnet synchronous machines, switched reluctance machines, etc. Another class of machine, which has been relatively ignored, is synchronous reluctance machines. In order to enhance and increase torque density of pure synchronous reluctance machines, the low cost permanent magnet can be inserted into rotor lamination to contribute torque production, which is so-called permanent magnet-assisted synchronous reluctance machines. This paper presents the design and rotor geometry analysis of low cost ferrite permanent magnet-assisted synchronous reluctance machines with transversally-laminated rotor. The advanced finite element method will be employed to calculate d-axis and q-axis inductance variation with rotor geometric parameters. The electromagnetic performance of optimized permanent magnet-assisted synchronous reluctance machines will be evaluated as well.

High Temperature Permanent Magnet Machine Actuators for Aerospace Applications

2012 ◽  
Vol 721 ◽  
pp. 141-146 ◽  
Author(s):  
Evangelos M. Tsampouris ◽  
Panagiotis E. Kakosimos ◽  
Antonios Kladas
Keyword(s):  
High Temperature ◽  
Permanent Magnet ◽  
Selection Criteria ◽  
Control Algorithm ◽  
Permanent Magnet Machines ◽  
Pwm Inverter ◽  
Design Considerations ◽  
Aerospace Applications ◽  
Magnet Material ◽  
Permanent Magnet Material

The paper presents technologies for developing efficient high temperature permanent magnet machines implemented in aerospace drive applications. Selection criteria and experimental investigation of the permanent magnet material is undertaken and design considerations enabling to meet the specifications set are described. The proposed control algorithm for an appropriate PWM inverter is introduced.

A novel analytical calculation of magnetic field in the slotted air gap of spoke-type permanent-magnet machines using conformal mapping

2020 ◽  
pp. 1-15
Author(s):  
Jianqi Li ◽  
Yu Zhou ◽  
Jianying Li
Keyword(s):  
Magnetic Field ◽  
Conformal Mapping ◽  
Permanent Magnet ◽  
Flux Density ◽  
Analytical Method ◽  
Electromotive Force ◽  
Analytical Calculation ◽  
Air Gap ◽  
Permanent Magnet Machines ◽  
Peak Value

This paper presented a novel analytical method for calculating magnetic field in the slotted air gap of spoke-type permanent-magnet machines using conformal mapping. Firstly, flux density without slots and complex relative air-gap permeance of slotted air gap are derived from conformal transformation separately. Secondly, they are combined in order to obtain normalized flux density taking account into the slots effect. The finite element (FE) results confirmed the validity of the analytical method for predicting magnetic field and back electromotive force (BEMF) in the slotted air gap of spoke-type permanent-magnet machines. In comparison with FE result, the analytical solution yields higher peak value of cogging torque.

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