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High Speed Permanent Magnet Assisted Synchronous Reluctance Machines - Part I: A General Design Approach

Gallicchio, Gianvito; Di Nardo, Mauro; Palmieri, Marco; Marfoli, Alessandro; Degano, Michele; Gerada, Chris; Cupertino, Francesco


Gianvito Gallicchio

Marco Palmieri

Alessandro Marfoli

Professor of Advanced Electrical Machines

Francesco Cupertino


The design of synchronous reluctance machines with and without permanent magnets assistance constitutes a challenging engineering task due to the numerous design variables and performance indexes to be considered. The design complexity increases even further when the application requires high speed operation, with consequent rotor structural constraints and and related effects on the electromagnetic performance. Structured as two-parts companion papers, this first part proposes a comprehensive design procedure able to consider all the non-linear aspects of the machine behaviour, greatly reducing the number of independent design variables, without worsening the computational burden. In particular, the non linear behaviour of the rotor iron ribs and the effect of the permanent magnets on the structural design are all taken into account with the proposed iterative design procedure targeting the achievement of a desired power factor. The proposed method will be then used to draw some preliminary design considerations highlighting the several trade-offs involved in the design of high speed permanent magnet assisted synchronous reluctance machine. Part I is setting the theoretical bricks that will be further expanded and experimentally validated in the companion paper Part II.


Gallicchio, G., Di Nardo, M., Palmieri, M., Marfoli, A., Degano, M., Gerada, C., & Cupertino, F. (2022). High Speed Permanent Magnet Assisted Synchronous Reluctance Machines - Part I: A General Design Approach. IEEE Transactions on Energy Conversion, 1-1.

Journal Article Type Article
Acceptance Date May 20, 2022
Online Publication Date May 20, 2022
Publication Date May 20, 2022
Deposit Date Jul 7, 2022
Publicly Available Date Jul 7, 2022
Journal IEEE Transactions on Energy Conversion
Print ISSN 0885-8969
Electronic ISSN 1558-0059
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Pages 1-1
Keywords Electrical and Electronic Engineering; Energy Engineering and Power Technology
Public URL
Publisher URL


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