交流励磁直线轨道涡流制动器的多目标优化研究  

Multi-objective Optimization Design of AC-excited Linear Rail Eddy Current Brakes

作　　者：张智博 黄光来 李木森 李永增 李婧[1] ZHANG Zhibo;HUANG Guanglai;LI Musen;LI Yongzeng;LI Jing(State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学轨道交通运载系统全国重点实验室,成都610031

出　　处：《微电机》2024年第6期8-15,共8页Micromotors

基　　金：国家自然科学基金资助项目(52277018);四川省自然科学基金项目(2022NSFSC0447);中央高校基本科研业务费(2682022ZTPY055);国家重点实验室自主课题(2023TPL-T07)。

摘　　要：直线轨道涡流制动技术具有制动力平稳、无摩擦等优势,在连续长大坡道等复杂线路中能维持稳定的制动力输出,是对高速列车制动系统的有力补充。本文针对直线轨道涡流制动器进行多目标优化,首先建立了基于分层模型的交流励磁直线轨道涡流制动器解析计算模型,利用实验测试、有限元仿真模型验证了解析模型的有效性,并分析了制动-速度特性;之后结合基于第二代非支配排序遗传算法NSGA-II的优化方法,对影响制动力的制动器的初级绕组关键结构参数进行优化设计,最终将最大制动力从35.7N提升至46.7 N,增加了30.8%,同时将最大临界速度从40 m/s提升至43.4 m/s,增加了8.5%,提升了交流励磁直线轨道涡流制动器的制动性能,拓宽了制动器的适用速度范围,为交流励磁直线轨道涡流制动器的优化设计和应用奠定了理论基础。The linear track eddy current braking technology has the advantages of stable braking force and no friction,and can maintain stable braking force output on complex lines such as continuous long ramps,which is a powerful supplement to the braking system of high-speed trains.To improve the braking performance of eddy current brakes,multi-objective optimization of linear track eddy current brake was carried out in this paper.An analytical computational model for AC-excited linear rail eddy current brakes based on hierarchical modeling was established,and the correctness of the analytical model was verified by the finite element model and experimental method.Meanwhile,the braking characteristics was analyzed preliminarily.Multi-objective optimization design for several key structural parameters affecting braking force was carried out based on NSGA-II optimization algorithm.The optimization results show that the maximum braking force of the optimized eddy current brake is increased by 30.8%and the critical speed value is increased by 8.5%.The braking performance of AC excited linear track eddy current brake is improved,and the applicable speed range of the brake is widened,which lays a theoretical foundation for the optimal design and application of AC excited linear track eddy current brake.

关 键 词：涡流制动器 有限元模型 多目标优化 

分 类 号：TM359.4[电气工程—电机]