Design considerations and sensitivity analysis of a synchronous reluctance motor designed for ultra premium efficiency

Abstract

Abstract This paper presents the design and analysis of a synchronous reluctance machine, with particular emphasis on optimizing efficiency to achieve an ultra premium efficiency class. The study commences with the fundamental concept of a synchronous reluctance machine (SynRM), from which the geometric and electromagnetic parameters are systematically varied and their effect is investigated using numerical simulation methods. The objective of this study is to analyze the influence of specific parameters on the efficiency and operational behavior of the machine. These parameters include rotor and stator geometry, the air gap, and the material properties as well as the operating parameters. A comprehensive parametric study is utilized to identify correlations between the design parameters and the resulting loss mechanisms. The results obtained facilitate an evaluation of sensitive influencing factors and provide a solid foundation for the targeted optimization of the machine design. The findings of the study are summarized and conclusions are drawn for the efficient design of high power synchronous reluctance machines.

Key findings

• ▸Rotor and stator geometry significantly impact efficiency and operational behavior
• ▸Air gap and material properties have a notable influence on loss mechanisms
• ▸Comprehensive parametric study reveals sensitive influencing factors for targeted optimization

Keywords

Identifiers

DOI

10.1007/s00502-026-01412-x

Journal

e+i Elektrotechnik und Informationstechnik

Year

2026