This article presents a comprehensive thermal analysis of the Switched Reluctance Machine (SRM), with the objective of improving its efficiency, reliability, and operational lifespan. The study begins with an in-depth examination of the electromechanical characteristics of the SRM, providing essential insights into its operating environment. Particular attention is given to the identification and quantification of the main sources of thermal losses, including mechanical, electrical, and magnetic losses.

To understand heat propagation within the machine, a thermal modeling approach is applied, covering the three principal modes of heat transfer: conduction, convection, and radiation. These models make it possible to analyze the distribution of heat among the internal components of the SRM, depending on their structure and the properties of the materials. The theoretical study is supported by numerical simulations performed using the FEMM 4.2 software.

The simulations explore different operating scenarios, including cases with insulated and non-insulated windings. This analysis highlights the crucial role of insulating materials in thermal management. More specifically, insulation enhances heat dissipation and contributes to a more uniform temperature distribution within the machine.

The results confirm that an optimized thermal design, particularly through the careful selection and application of insulating materials, can significantly improve the thermal performance of the SRM. This is reflected in higher energy efficiency and extended lifespan, making the SRM more suitable for demanding industrial applications