考虑涡流效应的端部悬浮系统建模与控制器优化设计

Modeling of Front Magnetic Levitation System and Optimization Design of Controller Considering Eddy Current Effect

摘要:

通过分析涡流效应原理并利用有限元法对端部悬浮电磁场进行数值仿真，获取了涡流效应对端部悬浮电磁铁悬浮力影响的关键因素，并建立了考虑涡流效应的端部悬浮系统模型。针对列车运行过程中悬浮系统的动态特性，提出了一种不改变现有标称控制器结构的参数优化算法。优化后的控制器已成功应用于长沙磁浮快线，实际运行数据表明端部悬浮系统的鲁棒性和抗干扰能力得到了显著提升。

Abstract:

By analyzing the principle of eddy current effect and adopting the finite element method to simulate the suspension electromagnetic field， the key factors of eddy current effect on electromagnetic force are obtained， and the front magnetic levitation system model considering eddy current effect is established. According to the dynamic characteristics of magnetic levitation system during train operation， a parameter optimization algorithm without changing the existing nominal controller structure is proposed. The optimized controller has already been implemented and applied to Changsha Maglev Express Line successfully. The actual operation data indicate that the robustness and the anti-interference ability of front magnetic levitation system have been significantly improved.