一种简单的多变量自校正控制器及其在电加热炉上的应用

本文提出一种新的多变量自校正控制器,该控制器将最小方差策略和极点配置策略结合起来,从而具有两者的优点;该控制器可以控制具有不同传输延时的系统;算法简单。本文讨论了该自校正控制器在双输入双输出电加热炉上的工程应用。实时控制结果表明,该控制器不仅能适应电网电压波动等因素引起的模型参数的改变,控温效果优于常规PID调节器,而且使被控变量之间的耦合作用大大减小。

A SIMPLE MULTIVARIABLE SELF-TUNING CONTROLLER AND ITS APPLICATION TO ELECTRICALLY HEATED FURNACE

This paper presents a new multivariable self-tuning controller which combines the minimum variance strategy with the pole placement strategy and possesses their benefits. It can deal with the multivariable systems with different time delays and the algorithm is simple. Its application to a two-input-two-output electrically heated system is discussed in this paper. The results show that the performance of this controller is not only better than PID regulators, but also this controller minimizes the interactions between control loops.