Finite Element Analysis and Electromagnetic Field Optimization of Linear Synchronous Motor in High-Speed Maglev Systems
Journal Title: Mechatronics and Intelligent Transportation Systems - Year 2023, Vol 2, Issue 3
Abstract
Amidst the evolving dynamics of modern economic life, there emerges an escalating demand for faster modes of travel. In response, advancements in the realm of high-speed maglev train technology, targeting speeds of up to 600 km/h, are being persistently pursued in China. Central to ensuring the stable operation of these high-speed trains is a thorough understanding of the inherent magnetic fields and their electromagnetic interactions during high-speed transits. In this context, the Long Stator Linear Synchronous Motor (LSM) of Tongji University's maglev prototype is investigated. Through an analytical lens, a simplified model of LSM was dissected using the energy method. The distribution patterns of air gap magnetic flux were then ascertained through Fourier transformation coupled with the equivalent current layer, culminating in the derivation of a theoretical equation for electromagnetic forces. A two-dimensional finite element model subsequently shed light on the magnetic induction intensity distribution intricacies inherent to the long stator linear motor. Concurrently, potential end effects impinging on the motor's performance were explored. This comprehensive analysis further revealed the interplay between electromagnetic force, excitation current, and armature current. The observations encapsulated distinct magnetic field distribution patterns, nonlinear interdependencies between current and magnetic force, and pronounced saturation characteristics. Collectively, these findings furnish a robust theoretical scaffold for the simplification and optimization of electromagnetic forces in high-speed maglev systems.
Authors and Affiliations
Maozhenning Yang, Yougang Sun, Junqi Xu, Bing Sun
Keywords
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- EP ID EP732241
- DOI https://doi.org/10.56578/mits020301
- Views 79
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