模糊PID在合金化炉炉压控制中的应用  

Application of Fuzzy PID in Alloying Furnace Pressure Control

作　　者：李富强[1] 刘毅敏[1] 陈建良[1] 赵煜[2] 

机构地区：[1]武汉科技大学信息科学与工程学院,武汉430081 [2]电子科技大学微电子与固体电子学院,成都610000

出　　处：《自动化与仪表》2014年第9期37-40,共4页Automation & Instrumentation

摘　　要：大多数合金化炉炉膛压力设定值是固定的,该种情况并不能根据带钢规格的变化而自动变化,为此,该文分析了炉膛压力与带钢规格参数之间的关系,并采用多元线性回归方法,建立炉膛压力最优值与带钢规格之间的数学计算模型,根据该模型可以得出满足生产要求的炉压最佳值。然后结合传统PID控制和模糊控制的优点,根据炉膛压力控制系统的非线性和不确定因素,建立PID参数自整定的推理规则,设计了合金化炉膛压力控制系统的模糊PID控制器。仿真和现场应用表明,该控制系统的炉压设定值能够根据带钢的规格变化而变化,模糊PID控制器具有较快的动态响应速度。该系统可以自动适应现场的生产要求。The setpoint of most alloying furnace pressure setpoint was fixed,but the setpoint can not change automati- cally according to strip specifications. So the paper analyzed the relationship between the chamber pressure and strip steel specifications,and the mathematical mode between the chamber pressure and strip specifications was built by multiple linear regressions. A fuzzy PID controller was designed by combined fuzzy control with conventional PID control. Fuzzy inference rule of PID parameters was designed according to nonlinear and uncertainty of the pressure control system. Simulation and field applications show that the setpoint of the pressure can change according to the changes in strip specifications,fuzzy PID controller has a faster dynamic response speed,and the system can automatically adjust to the production requirements.

关 键 词：合金化炉压 多元线性回归 模糊PID 自整定 最优化 带钢 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]