迁钢2160热轧短行程控制模型研究

• 作 者: 江潇 南宁 余威 李飞 李彬
• 机 构: 首钢技术研究院,首钢迁钢公司热轧分厂,
• 出 处: 钢铁
• 发表日期: 2009年08期
• 关键词: 控制模型 短行程控制 自适应参数 带钢 神经网络 自适应 配置参数 热轧过程 宽度控制 立辊

在板带热轧过程中,需要使用短行程控制技术来避免带钢头尾出现明显的鱼尾,改善带钢头尾的平面形状。针对迁钢2160热轧在实际生产中遇到的带钢头尾宽度超差问题,通过分析原控制程序得到其短行程控制模型的设定及在线自适应方法,并通过模型仿真给出各个人工配置参数对神经网络形式曲线形状的影响,并据此来调整人工配置参数和自适应参数。实践表明,采用细化人工配置参数层别和调整在线自适应参数的措施可成功降低带钢头尾宽度与本体宽度的偏差,提高了带钢头尾宽度控制精度。

In the strip hot-rolling process, short stroke control technology is needed to avoid obvious fish tail at the head and tail of the strip and improve the plane shape of the tail at the head and tail of the strip. Aiming at the problem of head-to-tail width tolerance of 2160 hot rolled rolling encountered in actual production, the setting of short stroke control model and on-line adaptive method are obtained by analyzing the original control program. And through the model simulation, The influence of the configuration parameters on the shape of the neural network curve, and accordingly adjust the manual configuration parameters and adaptive parameters. Practice shows that adopting the method of thinning the parameters of manual configuration parameters and adjusting the online adaptive parameters can reduce the variation of head-to-tail width and body width, and improve the head-to-tail width control precision.