磁浮列车永磁电磁混合悬浮导向系统特性分析

Characteristic Analysis of Permanent Magnet Electromagnetic Hybrid Suspension Guidance System for Maglev Train

针对中速磁浮列车悬浮系统节能降耗的需求,提出了一种永磁电磁混合悬浮导向系统。根据永磁电磁混合悬浮导向系统的工作原理,确定了其结构组成,完成了悬浮力特性、自导向特性分析,以及气隙控制方式和防吸死控制策略研究;在建立系统数学模型和仿真模型的基础上,对系统方案进行仿真验证,并对混合悬浮电磁铁的悬浮损耗、温升、悬浮控制器性能、悬浮系统在平直道和曲线段的悬浮导向能力和承载力等进行测试。试验结果表明,永磁电磁混合悬浮导向系统具有承载能力强、悬浮电流小,发热量少等优点,系统的自适应能力满足中速磁浮列车运行的要求,可为中速磁浮列车的推广应用奠定基础。

In response to the energy saving and consumption reduction requirements of the medium-speed maglev train suspension systems,a permanent magnet electromagnetic hybrid suspension and guidance system was proposed.According to the working principle of this permanent magnet electromagnetic hybrid suspension and guidance system,the structural composition of the permanent magnet electromagnetic hybrid suspension and guidance system was determined,analysis of suspension and levitation force characteristics,self-guide characteristics,and research on the air gap control method and anti-seize control strategy were completed.Based on the establishment of the system mathematical model and simulation model,the system scheme was simulated and verified.Suspension&levitation force loss,temperature rise,suspension controller performance of the hybrid suspension electromagnet,and suspension guidance capacity,bearing capacity,etc.of the suspension system in straight and curved sections were tested.The results show that the permanent magnet electromagnetic hybrid suspension and guidance system has the characteristics of strong carrying capacity,low electric current energy consumption,and almost no heat.And the self-adaptive ability of the system meets the requirements of medium-speed maglev operation,which will lay the foundation for the promotion and application of medium-speed maglev trains.