高速磁悬浮列车悬浮控制中加速度信号数字滤波算法研究  

Digital Filter Algorithm for Accelerometer Data in Suspension Control System of High Speed Maglev Train

作　　者：李晓龙[1] 张志洲[1] 佘龙华[1] 常文森[1] 

机构地区：[1]国防科学技术大学磁悬浮技术工程研究中心,湖南长沙410073

出　　处：《机车电传动》2009年第1期39-42,共4页Electric Drive for Locomotives

摘　　要：在磁悬浮列车悬浮控制系统设计中,传感器信号的数字化滤波算法特性是影响控制效果的重要因素之一。其中加速度信号一般经过积分处理获得系统的绝对速度反馈,但实测加速度信号中包含了不稳定的重力分量,不能直接积分。结合加速度信号的特点和控制器实时性的要求,提出了数字高通和移动平滑滤波算法。计算机仿真分析和对实测信号的处理结果表明,移动平滑滤波算法获得了较理想的滤波效果,适合应用于控制器的数字化设计。In the maglev suspension control system, digital filter algorithm of sensed data is very important for the control performance. Absolute speed is usually gotten from the time integral on acceleration. However, the gravity information is included in the output of the accelerometer. So integral can not be carded out directly. Considering properties of accelerometers and the real-time requirements of control system, this paper ploposes a high-brand and digital moving average filter. From the simulation and real experiment results, good performance has been achieved, which proves that the proposed digital filter is valuable for the design of digital controllers.

关 键 词：磁悬浮列车 加速度计 数字滤波 移动平滑滤波 PID控制 

分 类 号：U292.917[交通运输工程—交通运输规划与管理] TP273[交通运输工程—道路与铁道工程]