导弹电动舵机控制系统设计

Design of Control System for Missile Electric Actuator

摘要:

针对某型导弹现有电液伺服系统存在动态响应速度慢、结构复杂、可靠性差、使用维护困难等缺点,研究提出了一种以大功率无刷直流电机为控制对象的电流/位置/速度三闭环反馈控制系统设计方案。采用DSP和FPGA的组合工作模式,其中DSP内部主控制程序实现系统初始化、三闭环控制算法和产生PWM信号等功能,FPGA则实现各功能电路的时序逻辑控制。通过构建由模拟制导计算机、1553B总线通讯网络和舵机控制系统组成的测试系统,验证了本文所提出的三闭环电动舵机控制系统设计方案的可行性,该导弹电动舵机控制系统具有输出力矩大、响应速度快、控制精度高、使用寿命长和可维护性好等优点。

Abstract:

Aiming at the shortcomings of the existing electro-hydraulic servo system of a certain missile, such as slow dynamic response speed, complex structure, poor reliability and difficult maintenance, a design scheme of current / position / speed three closed loop feedback control system based on high power brushless DC motor was proposed. The combination mode of DSP and FPGA was adopted. The functions of system initialization, three closed-loop control algorithm and PWM signal generation were realized in the main control program of DSP and timing logic control of each functional circuit was realized in FPGA. By constructing a test system consisting of a simulation guidance computer, a 1553B bus communication network and a steering gear control system, the feasibility of the design scheme of the three-loop electric steering gear control system proposed in this paper was verified. The missile electric steering gear control system owns the advantages of large output torque, fast response speed, high control accuracy, long service life and good maintainability.