模糊自适应PID在数控进给伺服系统的应用

数控机床的进给伺服控制是复杂的机电耦合系统，因其存在参数时变、负载扰动以及电机的非线性等缺点，很难为其建立准确的模型。模糊Fuzzy控制具有无需建立被控对象的数学模型、鲁棒性好等优点但稳态精度差，将模糊控制和PID控制相结合，设计了模糊自适应PID控制器，并将此应用于数控伺服系统的控制中，该控制器具有较完善的控制性能。仿真实验的结果表明，采用该模糊自适应PID控制器具有较高的稳定精度，较强的鲁棒性。

Fuzzy self-tuning PID control of NC machine tool feed servo system

It is difficult to establish mathematic models for NC machine tool feed servo system,because it has several disadvantages,such as parameters varying as time,load disturbing,motor being non-linear,and so on.Fuzzy control need not establish the mathematical mode of controlled plant,but steady state precision is bad.A fuzzy self-tuning PID controller was presented,the controller has better control performance.The simulation results show that the fuzzy self-tuning PID controller with high precision and stabilit...