牵引榴弹炮伺服控制系统设计仿真研究

Simulation Study of Servo Control System Design of a Towed Howitzer

为提高现役牵引火炮在现代战争中精确打击、快速反应的作战能力,对牵引榴弹炮进行了数字化改造,设计了基于DSP的直流PWM伺服控制系统.首先,在分析了系统负载特性的基础上,对位置伺服系统的主控芯片、执行电机、位置信号的检测装置进行了选型;其次,在简化了各部分模型的基础上得出了系统的传递函数;最后,在MATLAB仿真环境下搭建了控制系统的模型,进行了常规PID和模糊自适应PID控制的仿真对比研究.仿真结果表明:所设计的伺服系统采用模糊自适应PID控制,在系统参数改变的情况下仍有满意的控制效果,在瞄准过程中能够达到系统的控制指标,可以为现役牵引火炮的数字化改造提供参考.

Abstract： In order to improve the capability of precision strike and rapid reaction of the active towed gun in modern warfare, DC PWM servo control system based on DSP for a towed howitzer to realize the digital transformation was designed. First, based on the analysis of the load characteristics, the master control chip, implement motor and position signal detecting device of the position servo system were selected. Secondly, the transfer function of the system was obtained due to the simplified model of each part. Last, in the environ- ment of MATLAB simulation, the model of the control system was built, some studies on comparing the con- ventional PID with the fuzzy self-adaptive PID control were did. The results indicate that the designed servo system used fuzzy self-adaptive PID control still has the satisfied control effect under the condition of changing system parameters, and the designed servo system can achieve control indicators of system. This can provide a reference for the digital transformation of active towed gun.