In order to achieve the best characteristics of the setting value tracking and the disturbance rejection, a PID controller optimization design method is put forward.
为使PID控制器同时具有给定值跟踪和抑制干扰两个方面的最佳特性，提出了PID控制器优化设计方法。
2
Disturbance factor parameters change with confining pressure value.
扰动因子的参数取值与围压相关。
3
Preview control, an advanced control method, can use future target value and future disturbance as well as present and past information in deciding the control.