一类非自衡对象的典型反馈型PID控制

针对一类非自衡对象,提出了一种基于典型反馈模型的PID控制器(TF-PID);采用全极点型逼近方法对被控对象的时滞环节做近似处理,并在内模控制原理的基础之上导出一种基于典型反馈模型的PID控制器参数整定策略,从而得到PID控制器的整定参数;仿真结果表明,所设计的控制方法具有更优的设定值跟踪性能和干扰抑制性能,并且实现二者分离控制。

Typical Feedback PID Control for a Class of Process with Integrator and Dead Time

For a class of integrator and time delay process,presents a PID controller based on a typical feedback model(TF-PID).All-pole-type approximating substitute for delay part of the controlled object,and get a parameter tuning strategy of the PID controller based on the typical feedback model from IMC principle,thereby,get the tuning parameters of the PID controller.The simulation results show that the designed control method makes better set point tracking performance and the interference suppression performance,and the two performance of the system can be controlled separately.