高速动车组线性涡流制动系统特性仿真研究
杨利强1徐凯歌2刘赛赛3
Characteristic Simulation of Linear Eddy Current Braking System of High\|speed EMU
YANG LiqiangXU KaigeLIU Saisai
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作者信息:1.1.徐州地铁集团有限公司，221018，徐州；
2.2.徐州地铁运营有限公司，221018，徐州;
3.3.南京中车浦镇海泰制动设备有限公司,211899,南京
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Affiliation:Xuzhou Metro Group Co., Ltd., 221018, Xuzhou, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.01.001
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中图分类号/CLCN:U270.357U266
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栏目/Col:学术专论
摘要:
基于涡流制动原理建立涡流制动力的数学模型，并利用ANSYS Maxwell软件建立LECB（线性涡流制动）三维仿真模型。根据控制变量法研究列车速度、气隙、励磁电流等因素对涡流制动特性的影响，并分析了常用制动和紧急制动工况下的电磁特性。研究结果表明：线性涡流制动力受速度的影响明显，低速时制动力快速上升并达到幅值，然后随着速度的增加,制动力下降并趋于平稳；励磁电流、励磁线圈匝数与线性涡流制动力成正相关，气隙、钢轨材料电导率与线性涡流制动力成负相关；相同条件下，励磁线圈材料为铝时,线性涡流制动系统产生的制动力大小优于励磁线圈材料为铜时产生的制动力。
Abstracts:
A mathematical model of eddy current braking force is established based on eddy current braking principle, and the LECB (linear eddy current brake) 3D simulation model is established using ANSYS Maxwell software. According to control variable method, the influence of factors such as train speed, air gap, excitation current on eddy current braking characteristics is studied, and the electromagnetic characteristics under common braking and emergency braking conditions are analyzed. Research results show that the linear eddy current braking force is obviously affected by the speed. At low speed, the braking force rises rapidly and reaches the amplitude, and then decreases and becomes stable as speed increases. The excitation current and the number of excitation coil turns are positively correlated with the linear eddy current braking force, while the air gap and the conductivity of rail material are negatively correlated with the linear eddy current braking force. Under the same conditions, the braking force generated by the linear eddy current braking system with excitation coil material of aluminum is larger than with material of copper.
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