基于FPGA多轴差补控制器设计与实现  

Design and implementation of multi-axis interpolation controller based on FPGA

作　　者：马刚[1] 曾平[1] 吴自力[1] 

机构地区：[1]西安电子科技大学计算机外部设备研究所,陕西西安710071

出　　处：《计算机工程与设计》2008年第15期3912-3914,共3页Computer Engineering and Design

基　　金：国家部委"十一五"预研基金项目(513160602)

摘　　要：介绍了一种基于FPGA实现多轴联动插补控制器的设计方案。利用FPGA定制发送脉冲控制步进电机工作的电路,通过将多种互不重叠的基脉冲叠加,实现速度的连续可调。采用累加器的半加载、被积函数的左移规格化以及空间矢量速度的调速再分解等方式,使得插补运算速度更快,脉冲分配更均匀,定位更准确。该系统达到了新型分光测色平台[1]对步进电机高速高精度的控制要求。A design plan for multi-axis synchronization interpolation controller based on FPGA is introduced. FPGA is used to control stepping motor through fixing and sending pulse. The continuous adjustment of speed can be realized through various overlapping of nonoverlapping basic pulses. Measures of semi-loading for the accumulator, left-shift normalization for the integrand function and decomposition of the adjusted spatial speed vector are taken to make calculation faster, impulse distribution more uniform and location more precise, This system achieves the new-type spectrophotometer platform＇s control requirement on high-speed and high precision of stepping motor.

关 键 词：速度控制 插补运算 多轴联动 步进电机 分光测色平台 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]