铁道科学与工程学报2026，Vol.23Issue(2)：503-516,14.DOI:10.19713/j.cnki.43-1423/u.T20250677
高温超导磁浮电磁道岔设计及特性研究
Design and characteristics study of high-temperature superconducting maglev electromagnetic turnout
摘要
Abstract
High-temperature superconducting(HTS)maglev technology,with its self-stable levitation characteristics,shows the potential to become the next-generation maglev transportation system.However,electromagnetic turnouts—the core components for adapting complex track—still face challenges.The purpose of this study was to explore the electromagnetic design and turnout crossing characteristics.Three proposed electromagnetic turnout prototypes were selected as research subjects,with systematic analyses of their structural compositions,magnetic field distribution,and electromagnetic force calculation.Through simulation comparisons,the magnetic field uniformity and switching capability were evaluated.The electromagnetic force including lateral force fluctuations,longitudinal force oscillations,levitation force attenuation,and yaw torque were calculated.The levitation and guiding force difference between the normal permanent magnet guideway(PMG)and the electromagnetic turnout was compared.According to the engineering requirements,the electromagnetic turnout array form based on curve layout was proposed,and the results of electromagnetic force under different curve radius,different width and height of PMG and different crossing speed were compared.Analysis results revealed that all three turnout arrays achieved uniformly adjustable magnetic field distributions.During HTS maglev crossing,lateral force fluctuations,levitation force attenuation,and longitudinal force oscillations were observed,while the yaw torque exhibited an initial increase followed by a decrease,consistent with the magnetic field distribution of the turnout.There is an inherent difference between the levitation characteristics above the electromagnetic turnout and the normal PMG.The new curved array layout increases the scalability of the electromagnetic turnout.Through the electromagnetic force comparison,it is found that the larger the curve radius,the larger the fluctuation range of the electromagnetic force.PMG parameters affect the magnitude of the magnetic field,thus affecting the amplitude of the electromagnetic force.The electromagnetic force is not obviously affected by the crossing speed.Compared with the straight crossing and the lateral crossing condition,the electromagnetic force fluctuation amplitude of the straight crossing is smaller.This study systematically compared the magnetic field switching characteristics of different turnout arrays and the electromagnetic force responses.These results provide critical theoretical support for the engineering application of HTS Maglev transportation systems.关键词
高温超导/磁悬浮/道岔通过性/永磁轨道/电磁力Key words
high-temperature superconducting(HTS)/Maglev/turnout crossing/permanent magnet guideway(PMG)/electromagnetic force分类
交通工程引用本文复制引用
彭璨,何斌,杨博,邓自刚,张卫华,徐井芒,王平..高温超导磁浮电磁道岔设计及特性研究[J].铁道科学与工程学报,2026,23(2):503-516,14.基金项目
国家重点研发计划课题(2022YFB3505400) （2022YFB3505400）
国家自然科学基金资助项目(U23A20681) （U23A20681）
