摘要
采用同步直线电机牵引的高速磁浮列车长定子轨道是不连续的,一般采用长定子模块拼接而成。为了轨道安装的方便及考虑到温度变形效应影响,在相邻长定子模块间留有一定的接缝,这使得相对位置传感器输出的磁极相角信号存在畸变,而且不同长度的接缝导致的信号畸变情况也不同。针对该问题本文采用了一种新型跟踪微分器(TD),用于解决轨道接缝导致的信号畸变问题。通过仿真与实验对模型与算法进行了验证,结果表明新型快速非线性跟踪微分器能较好解决过轨道大、小接缝时的信号畸变问题。
The track of the high speed maglev train propelled by the synchronization linear motor consists of long stators,which is discontinuous.The track is formed by long stator packs that were joined together.For the sake of convenience for track installation and considering the influence of temperature deformation effect,certain joint gaps between the adjacent stator packs were reserved,which gave rise to different levels of distortion of magnetic phase angle signals of the relative position sensors,given different lengths of joint gaps.In this paper,a new tracking differentiator was adopted to solve the problem of signal distortion caused by joint gaps of long stators.The model and algorithm were verified by simulation and experiment.The results showed that the new fast nonlinear tracking differentiator is feasible to eliminate the signal distortion when relative position sensors pass through the long or short joints of long stators.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2016年第1期81-85,共5页
Journal of the China Railway Society
基金
"十二五"国家科技支撑计划(2013BAG19B00-05-04)
关键词
磁浮列车
信号畸变
快速非线性跟踪微分器
轨道接缝
maglev train
signal distortion
high-speed nonlinear tracking differentiator
joint gap of long stator
