IF articles

Summary - This study analyses the possibility of integrating conventional adhesion traction systems with linear motors derived from Maglev technology to improve the performance of freight trains on steep-gradient railway lines. After presenting the main Maglev systems and their magnetic guidance and propulsion functions, the characteristics of linear induction (LIM) and synchronous (LSM) motors are presented and their potential applications in traditional railway systems are analysed. On a reference track with steep gradients and maximum speed limits, dynamic simulations were performed to compare kinematic and dynamic performance in different operating scenarios. The scenarios differ in terms of train mass, number of locomotives, and the presence or absence of linear motors. The results show that integrating linear motors along selected sections overcomes the limitations imposed by wheel-rail adhesion, maintaining higher speeds and reducing the need for multiple locomotive traction. The study highlights the advantages achievable with hybrid traction systems while highlighting the need to investigate further aspects such as their control system, electromagnetic compatibility, interoperability and to evaluate their technical and economic efficiency.

https://www.medra.org/servlet/view?lang=it&doi=10.57597/IF.11.2025.ART.1