摘要
以6自由度磁悬浮定位平台控制系统为研究对象,结合被控对象的实际特点,在平面磁悬浮平台(PAMB)数学模型的基础上,介绍了一种用于磁悬浮轴承实时控制的数据采集与处理系统。采用DSP作为主控单元,对传感器信号高速采集。由于A/D集成在DSP内部,可以对两路信号精确同步采样。对数据进行运算后,实现D/A转换输出控制电压信号。控制软件采用JTAG接口下载到DSP的内部闪存。为了方便实时改写参数,还设计了DSP与计算机通讯接口。仿真结果表明,这种控制方案有较好的动态和静态特性。
6-DOF planar active magnetic bearing（PAMB）system is studied, and the characters of the controlled object are considered, According to the mathematical model, a real-time data acquisition and processing system for PAMB is introduced. Digital signal processor is used to control the system and to sample displacement sensors signals. Two analog to digital converts are integrated in DSP to sample datum synchronous, After calculating the sampled datum, the DSP gives D/A results, which translates the hexadecimal datum to analog voltage signals. The control software is downloaded to a 16 K flash ROM integrated in DSP with a JTAG interface. In order to rewrite parameters in real-time, the DSP system and PC is connected by a RS232C communication interface. The results of simulation show the proposed scheme have better dynamic and static characteristics.
出处
《控制工程》
CSCD
2008年第1期78-81,共4页
Control Engineering of China
基金
辽宁省教育厅基金资助项目(2004F014)
关键词
主动磁悬浮轴承平台
数字信号处理
6自由度
同步采样
planar active magnetic bearing
digital signal processor
6 degrees of freedom
synchronous sample
