摘要
综述水泥流程工业中的立磨粉磨过程,通过分析立磨流程工艺特点,提出了立磨多回路控制系统设计思路,并采用最小二乘法建立立磨控制回路模型,根据现场操作经验及病态工况特点提取多回路切换控制规则。基于回路数学模型,采用预测控制方法对各回路实现优化控制。该系统在某水泥厂5 000 t/d水泥生料生产线试运行3个月,立磨系统的生产效率和成品合格率均取得显著提高。
Summing up the vertical roller mill grinding process in cement process industry, we analyze the technical characteristics of vertical roller mill process and put forward the design philosophy of vertical roller mill multi-loop control system. First, the control loop models are constructed making use of least square method. Then, based on the on-spot operating experience and abnormal working con- ditions, the multi-loop switch control formulas are extracted and integrated. Final, we adopt the predictive control theory to realize the optimum control of each loop of vertical roller mill on the basic of the built loop mathematical models. This optimum control system is put into trial operation for three months in a raw production line （5 000 t/d） , the main production quotas are improved observably, such as production efficiency and qualification rate.
出处
《控制工程》
CSCD
北大核心
2012年第6期929-934,943,共7页
Control Engineering of China
基金
国家高技术研究发展计划基金项目(2007AA05Z432926)
关键词
立磨
模型辨识
多回路控制
预测控制
vertical roller mill
model identification
multi-loop control
predictive control
