数控机床自适应模糊位置伺服系统

Adapted-fuzzy position servo control system used in numerically controlled machine tool

数控机床的进给伺服水平是衡量数控档次的标准 ,永磁同步电机 (PMSM )以其良好的动静态特性广泛应用于数控机床的伺服系统中。为此 ,文章以PMSM位置伺服系统为控制对象 ,针对该系统的非线性、参数不确定性及对时实性和无超调的要求 ,提出了对量化因子 ,比例因子进行在线寻优的自适应模糊控制方法 ,并在simulink环境下进行了仿真 ,仿真及实验结果表明 ,自适应模糊位置控制器具有良好的稳态精度和动态响应。

The sermo level is a critical to evaluate the quality of NCMT. And PMSM is widely used in NCMT for its excellent dynamic and static characteristics. Thus this paper treated the position servo-system of PMSM as the control target. Considering its characteristics of nonlinearity, parameter uncertainty and the requirements of real-time control and no over-range in practices, we proposed an adapted-fuzzy controller based on adjusting the scale coefficient on-line..Simulations in simulink and experiments based on industrial-computer showed that the proposed adapted-fuzzy controller has excellent characters of static precision and transient responses.