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车载超导磁体长度对电动悬浮列车悬浮特性的影响
Effect of onboard superconducting magnet length on the levitation characteristics of electrodynamic levitation train
- 机车电传动 2022年第4期 页码：9-16
- 作者机构：
西南交通大学 牵引动力国家重点实验室，四川 成都 610031
- 作者简介：
邓自刚（1982—），男，博士，研究员，博士生导师，主要从事磁悬浮交通技术及应用方面的研究； E-mail: deng@swjtu.cn
- 基金信息：国家自然科学基金项目(52022086)
DOI：10.13890/j.issn.1000-128X.2022.04.002
中图分类号： U237;O436纸质出版日期：2022-07-10，
收稿日期：2022-04-04，
修回日期：2022-05-28，
- 稿件说明：
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吴定鼎, 黄欢, 袁宇航, 等. 车载超导磁体长度对电动悬浮列车悬浮特性的影响[J]. 机车电传动, 2022,(4):9-16.
WU Dingding, HUANG Huan, YUAN Yuhang, et al. Effect of onboard superconducting magnet length on the levitation characteristics of electrodynamic levitation train[J]. Electric drive for locomotives, 2022,(4):9-16.
吴定鼎, 黄欢, 袁宇航, 等. 车载超导磁体长度对电动悬浮列车悬浮特性的影响[J]. 机车电传动, 2022,(4):9-16. DOI： 10.13890/j.issn.1000-128X.2022.04.002.
WU Dingding, HUANG Huan, YUAN Yuhang, et al. Effect of onboard superconducting magnet length on the levitation characteristics of electrodynamic levitation train[J]. Electric drive for locomotives, 2022,(4):9-16. DOI： 10.13890/j.issn.1000-128X.2022.04.002.
摘要
超导电动悬浮是磁浮技术的发展方向之一。为进一步研究超导电动悬浮系统的悬浮特性，文章以山梨试验线超导电动悬浮列车为研究对象，建立了单侧车载磁体-零磁通线圈的三维瞬态仿真模型。首先根据公布的测试数据验证了模型的准确性，随后用该模型研究了超导磁体长度对列车悬浮力的影响，最后分析了长度优化后的超导磁体在不同速度、不同垂向位移和不同横向位移下的悬浮力特性，重点分析了悬浮力的波动情况。研究结果表明，仿真结果与试验线公布的测试数据接近程度良好，误差在10%以内，验证了此仿真模型的准确性；同时超导磁体的长度对列车的浮阻比影响很小，悬浮力均值随超导磁体长度增加而线性增加；悬浮力在线圈长度为1 110 mm时波动幅值和波动系数都最小；速度越高，悬浮力的波动系数越小，在500 km/h时，垂向位移和一定范围内的横向位移对悬浮力波动系数影响不大。本文研究成果可为电动悬浮车辆的动力学性能优化提供参考。
Abstract
Superconducting electrodynamic levitation represents one of the development trends of the maglev technology. Taking the superconducting electrodynamic levitation train running on the Yamanashi test line as the research object
this paper was aimed to further study the levitation characteristics of the superconducting electrodynamic levitation system. A three-dimensional transient simulation model of the single-side on-board magnet - zero-flux coil was established. Firstly
the accuracy of the model was verified according to the released test data
and then the effect of the superconducting magnet length on the levitation force of the train was studied with this model. Finally
the levitation force characteristics of the length-optimized superconducting magnet under different speeds
vertical displacements
and lateral displacements were analyzed
focusing on fluctuation of levitation force. The research results show that the simulation results are close to the released test data
with an error less than 10%
which verifies the accuracy of the simulation model. In addition
the length of the superconducting magnet has little effect on the lift/drag ratio of the train
and the mean value of the levitation force increases linearly with the increasing length of the superconducting magnet; when the coil length is 1 110 mm
the fluctuation amplitude and the fluctuation coefficient of the levitation force are the smallest. The higher the speed
the smaller the fluctuation coefficient of the levitation force; at 500 km/h
the vertical displacement and the lateral displacement within a certain range have little effect on the fluctuation coefficient of the levitation force. The conclusions of this paper provide a reference for the optimization of the dynamic performance of electrodynamic levitation trains.
关键词
超导电动悬浮超导磁体有限元分析电磁仿真悬浮力尺寸优化
Keywords
superconducting electrodynamic levitationsuperconducting magnetfinite element analysiselectromagnetic simulationlevitation forcesize optimization
references
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