Abstract: Rolling delay is a typical dynamic process of reheating furnace. The optimized decision making of heat supply during the period of rolling delay, which plays a significant role in control strategy of reheating furnace, is a problem worthy of further study. The previous work was to give optimal set points of furnace temperature on the basis of mathematical model by establishing an objective function. In this paper, the mathematical model for dynamic process of reheating furnace is studied. For different rolling delay times, the optimal strategies are obtained by using the method of multi-objective gray state decision making. Based on these studies, a revised dynamic method of rolling delay is proposed. The results of simulation indicate that this method has good dynamic characteristics and is suitable for on-line control. Due to its ease and efficiency, multi-objective grey state decision making could be applied to more complex engineering problems.

Key words:

灰色局势决策, 加热炉, 数学模型, 待轧

摘要： 对加热炉动态过程进行数学模型研究，针对不同待轧时间，采用多目标灰色局势决策方法，得出了相应合理的待轧优化控制策略，并给出了待轧时间变动时的动态修正方法.模拟结果表明，该方法具有良好的动态性能，适合于在线控制.

关键词:

灰色局势决策, 加热炉, 数学模型, 待轧