重介选煤中密度与液位解耦控制研究  

Research on Decoupling Control Method of Density and Level in Dense Medium Coal Preparation

作　　者：郭西进[1] 张志强[1] 王广胜[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《煤炭技术》2017年第1期296-298,共3页Coal Technology

基　　金：国家自然科学基金资助项目(61072094)

摘　　要：在分析影响重介选煤控制的主次要因素的基础上,建立了系统的数学模型。针对系统中存在的大滞后、非线性和强耦合等特点,在解耦控制的基础上,提出采用模糊内模控制技术与PID控制技术对密度与液位分别加以控制。仿真结果表明,该控制方法能够很好地补偿滞后,使系统获得满意的控制效果,是控制重介选煤的一种有效方法。Based on the analysis of the influence of primary and secondary factors about dense medium coal preparation control, the mathematical model of the system is established. In view of the characteristics of big lag, nonlinear, strong coupling in the system, the fuzzy internal model control technology and the PID control technology are put forward to control density and liquid level respectively on the basis of decoupling control. The simulation results show that the control method is a kind of effective method to control the dense medium coal preparation, which can compensate lagging effectively and make the system obtain satisfactory control effect.

关 键 词：重介选煤 密度 模糊内模控制 

分 类 号：TD94[矿业工程—选矿] TD67