模糊控制器在焊枪高度调整中的应用

Application of fuzzy controller on torch height adjustment

针对塔吊臂架角钢焊接特点,采用激光视觉传感器获取焊枪高度位置偏差信息,对焊枪高度调整采用模糊控制算法。针对工件焊接过程变形的特点,将在线插值法和积分算法应用于模糊控制算法中,并用S7-200 PLC实现。现场应用证明,改进型模糊控制与常规PID及常规模糊控制器相比较,其控制效果三者中最优。

In view of the crane boom angle welding characteristics,this paper uses the laser vision sensor to obtain the position information of torch height deviation,welding torch height adjustment fuzzy control algorithm,according to the characteristics of the workpiece deformation during welding process,the online interpolation method and the integral algorithm is applied to the fuzzy control algorithm,and uses S7-200 PLC to achieve.Experiments sho,n that compared with the conventional PID and the conventional fuzzy controller,the improved fuzzy control effect is best.