中文摘要：

为解决国内双辊连铸薄带辊速控制系统薄带成品率低、裂纹、易断带和轧卡等问题,对辊速与熔池温度场分布相互关系进行了研究：辊速与铸机出口处薄带表面温度近似线性关系.辊速越大,薄带表面温度越高且易断带;辊速越小,薄带表面温度越低且易裂纹或轧卡.通过采样薄带表面温度,建立凝固终点模型和温度反馈修正铸辊主速度给定数学模型,解决凝固终点不能测量及因干扰致其波动而不能实时修正主速度给定的问题;通过建立模型参考自适应系统解决系统实时性和鲁棒性差的问题.

英文摘要：

The aim is to solve the problem that the thin strip was low-yield, cracked, broken easily and mid-seizing in roll speed control of twin-roll thin strip continuous casting. Researches show that the roll speed approximates linear relationship with the surface temperature of thin strip at the exit of casting machine. The greater the roll speed the higher the surface temperature and more easily broken; The lower the roller speed the lower the surface temperature and more easily cracked or mid-seizing By online sampling of the interface temperature of casting and mold through infrared temperature sensor in real- time, a self-learning model about the optimal position of solidification end point is established. This model solves the problem that the solidification end point cannot be measured directly and the numerical simulation method has large deviation; An optimization model about the roll speed and the interface temperature of casting and mold is established. This model solves the problem that the roll speed cannot be accurately adjusted to real-time with interfering factors. The problem of poor real-time performance and robustness is solved by MRAS.