专家PID控制器的CPLD设计

CPLD Design of Expert System PID Controller

对于时变对象和非线性系统,传统的PID控制显得无能为力.本文将专家系统整合到PID控制中,专家系统首先获得控制系统当前控制状态的描述,根据控制规则,确定PID控制参数的调整方向和调整量,最后确定PID控制参数,以适应被控对象特性的变化,获得期望的控制效果.

The traditional PID controllers can do nothing for time-varying objects and non-linear systems. This paper integrates the expert system into PID control. Firstly, the expert system obtains the current state of the control system. Secondly, according to the control rules, the adjustable direction and quantity of PID control parameters are confirmed. Lastly, PID control parameters are changed to adapt to the characteristics of object changes and achieve expected effect.