摘要
本文对电磁悬浮型常导高速磁浮列车绝对定位传感器进行工程化设计研究。建立传感器的解析电磁学模型,并采用有限元仿真分析标志板的屏蔽特性,从而为线圈设计及传感器工作频率的选择提供依据。在此基础上,针对传感器的读码准确率、实时性和鲁棒性问题,对信号调理电路的动态特性及参数选择进行分析与设计,并基于有限状态机设计传感器的读码算法。试验表明本文所设计的传感器稳定可靠,可保证样车试验的长期顺利进行。该传感器同样适用于中低速磁浮列车,对于轮轨列车定位也有一定的参考价值。
The engineering design of absolute positioning sensor for a kind of normal-conduction high speed ma- glev train with the electromagnetic suspension （EMS） system was studied. The analytical electromagnetic mod- el of the sensor was established, and the electromagnetic shielding characteristics of the mark plate were ana- lyzed with the finite element method to guide the coil structure design and transmitting frequency selection. On the basis of this, in order to enhance the code-reading accuracy, response speed and stability of the sensor, the dynamic characteristics and parameters of the signal processing circuit were analyzed and designed. The code reading algorithm was designed on the basis of the finite state machine. The validity of the designed sensor is proved through long-term testing run, and this technique is also applicable to middle g〉 low speeds maglev trains and positioning of wheel-rail systems.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2013年第8期48-57,共10页
Journal of the China Railway Society
关键词
磁浮列车
绝对定位传感器
解析电磁学模型
有限元分析
信号调理
有限状态机
maglev train
absolute positioning sensor
analytical electromagnetic model
finite element analy-sis
signal processing
finite state machine
