10.21227/07ER-VH17
Ahmed Masmoudi
Ahmed
Masmoudi
Feature Investigation of a Segmented PM Quasi- Halbach Tubular-Linear Synchronous Machine
IEEE DataPort
2020
Transportation
Power and Energy
Quasi-Halbach PM tubular-linear synchronous machine
segmented poles
analytical model
3D finite element analysis
no- and on-load features
cost-performance trade-off.
2020-01-13
Dataset
Creative Commons Attribution
The paper is aimed at an investigation of thefeatures of a tubular-linear synchronous quasi-Halbach machine(T-LSM) where the radially-magnetized PMs are substitutedby four equal segments with parallel magnetization. Such asubstitution is done in an attempt to improve the machine costeffectivenesswhich makes it a viable candidate to equip freepistonengine-based series hybrid propulsion systems. The studyis initiated an analytical formulation of the flux density spatialrepartition considering (i) the case of the conventional quasi-Halbach T-LSM and (ii) the case of the segmented pole one.The comparison between the two T-LSMs is extended to a 3Dfinite element analysis (FEA)-based investigation of their no- andon-load features. Following the prototyping of the quasi-HalbachT-LSM with segmented poles, selected features predicted by 3DFEA are experimentally-validated. It is shown that while the PMsegmentation slightly affects the back-EMFs and cogging force,it has a remarkable fallout on the machine force productioncapability which makes necessary the assessment of the costperformancetrade-off.