摘要
该文设计了一个新型磁悬浮装置方案——旋转磁场电动式磁悬浮装置,该悬浮装置利用初级绕组中的三相交变电流与其在次级导体板中产生的涡流相互作用产生悬浮力,能够在装置静止的条件下实现固有稳定的电动式磁悬浮。为准确分析装置力和损耗特性,建立了悬浮装置的多层分环电磁模型,采用多层行波磁场理论方法进行磁场分布求解,并直接利用磁场分析所得的磁场分布结果求解次级悬浮力、转矩和涡流损耗,给出磁悬浮装置特性与其参数的关系,利用时步有限元仿真和样机实验验证了理论分析和计算结果。证明在一定的输入激励条件下,装置可以输出足够大的悬浮力使次级悬浮,但次级损耗不可避免。
A new maglev device,rotating field electrodynamic levitation device,was proposed.The interaction between primary winding 3-phase AC currents and secondary eddy currents produces lift force,and stable electrodynamic magnetic levitation could be realized while the device was static.A sub-loop electromagnetic model of this new device was established,the multi-layer traveling magnetic field method was applied to solve the magnetic field distribution,and the results were used to calculate the lift force,torque and secondary loss.The relationships between characteristics and parameters of the device were presented,the conclusions were verified by time-step finite element simulations and experiments.The results indicate that under certain input,levitation device can output enough lift force to lift its secondary,however,the secondary loss is inevitable.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2012年第12期90-96,共7页
Proceedings of the CSEE
基金
国家自然科学基金项目(51077003
50807004)
教育部博士点基金项目(20090009110025
200800041040)~~
关键词
磁悬浮
磁轮
悬浮力
转矩
损耗
magnetic levitation
magnet wheel
lift force
torque
loss
