摘要
为改善超导磁体的服役环境,提升磁体的振动性能,基于日本山梨线三车体四悬浮架车辆结构,建立66自由度超导电动磁悬浮列车数值动力学方程,并采用基于多尺度残差网络的拟合方法,实现磁轨耦合力的高精度宽范围等效表征;探究常见半主动控制策略在超导磁体侧振动抑制的综合表现,提出地棚-反向位移驱动协同的控制策略;为了使控制效果最佳,采用NSGA-Ⅱ遗传算法对提出策略的比例因子和最大阻尼值进行多目标优化,并探究列车在该策略下的动力学性能改善情况。研究结果表明,提出的地棚-反向位移驱动协同控制策略能有效抑制磁体侧的横向振动,并且一定程度改善了车体侧的动力学性能。
In order to improve the service environment of the superconducting magnets(SCMs)in superconducting electrodynamic suspension(EDS)train and further enhance its vibration performance,based on the three-car structure with four levitation frames from the Yamanashi Line in Japan,this paper first established the numerical dynamics equations of a 66 degree-of-freedom superconducting EDS train.A fitting method based on a multi-scale residual network was adopted to achieve a high-precision and wide-range equivalent characterization of the vehicle-track coupled force.Subsequently,the comprehensive performance of the existing semi-active control strategies for SCM vibration suppression was investigated,followed by the proposal of a control strategy of ground-hook and reverse displacement drive coordination.To achieve the optimal control effect,the NSGA-Ⅱgenetic algorithm was used to conduct a multi-objective optimization of the proportional factor and the maximum damping value of the proposed strategy,and to explore the improvement of the dynamic performance of the superconducting electrodynamic maglev train under the strategy.The research results show that the proposed control strategy can effectively suppress the lateral vibration on the SCMs side,and to a certain extent improve the dynamic performance of car bodies.
作者
冯丕极
马光同
杨晶
朱韬宁
苏振华
崔李滨
FENG Piji;MA Guangtong;YANG Jing;ZHU Taoning;SU Zhenhua;CUI Libin(State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu 610031,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China;CRRC Changchun Railway Vehicles Co.,Ltd.,Changchun 130062,China)
出处
《铁道学报》
北大核心
2025年第7期28-39,共12页
Journal of the China Railway Society
基金
国家重点研发计划(2024YFF0508001)
国家自然科学基金(52425702)。
关键词
超导电动磁悬浮
超导磁体
半主动控制
振动抑制
动力学
superconducting electrodynamic suspension
superconducting magnets
semi-active control
vibration suppression
dynamics
