This paper presents a nonlinear PID control system with the characteristics of simple configuration,easy design and high robustness on the base of analysing the features of the glass furnance.

• 本文在认真分析玻璃液位对象特点的基础上 ,提出了一种结构简单、设计方便和鲁棒性强的非线性 PID控制算法。