直线旋转永磁作动器的双DSP控制系统设计

摘要

Introduction was made to the structural characteristics and operating principle of a kind of linear and rotary permanent magnet actuator (LRPMA), whose mathematical model was analyzed. In allusion to the function characteristics of linear, rotary and helical motion which the LRPMA needed to realize, this paper designed the servo control system with the double digital signal processor (DSP) based on DSP2812 and dual-port random-access memory (RAM). This control system shared the memory to achieve real-time communication be-tween the two DSPs, and gave the design of system software and hardware, and different forms of motion control strategy. The experimental results show that the servo control system satisifes the demand of controlling.%介绍了一种直线旋转永磁作动器(LRPMA)的结构特点与运行原理，分析了其数学模型，针对LRPMA需要实现直线、旋转和螺旋运动的功能特点，设计了基于DSP2812和双口RAM的双DSP结构伺服控制系统。该控制系统通过共享存储器，实现了双DSP之间的实时通信，给出了系统软硬件设计及不同运动形式的控制策略。经实验测试，结果表明该系统满足控制的要求。