工业过程的一类时变模型的建立与控制方法研究

电渣重熔过程是典型的时变系统。电渣重熔炉冶炼质量高的原因在于过程熔速控制均匀。本文通过现场运行数据采集与仿真分析，详细解析了电渣重熔炉过程中诸多参数之间的相互关系，提出并实现了电渣重熔炉的时变系统模型，并成功的应用于邢台机械轧辊集团铸钢分厂美国康萨克15吨电渣炉技改项目上。通过现场6个月的实际运行，控制效果良好，部分参数甚至优于原控制系统。

A Class of Time-varying Models for a Kind of Industrial Process and Its Control Methodology

The electro-slag refining process is a typical time-varying system. The reason that ESR furnace has very high metallurgy quality is that the melt rate could be equably controlled. In this paper, we collected and analyzed the running data from the locale, and then gave the relationship between those parameters of the ESR process. Based on it we represented a method of building a time-varying system model and successfully practiced it on the project of reconstructing the 15t Consarc ESR in a plant of XingTai Metallurgical Roller Group. After 6 months' operation on the locale, the new control system worked well and even gained some control features better than the old one.