重介质分选过程的多模型切换自适应控制  

Multi-model switching adaptive control for dense medium separation process

作　　者：张超 戈勇 高建兵 孙洪涛[2] 张玉军 ZHANG Chao;GE Yong;GAO Jianbing;SUN Hongtao;ZHANG Yujun(Coal Washing Branch of CHN Energy Baotou Energy Co.,Ltd.,Ordos 017000,China;China Coal Technology and Engineering Group Beijing Huayu Engineering Co.,Ltd.,Beijing 100120,China)

机构地区：[1]国能包头能源有限责任公司煤炭洗选分公司,内蒙古鄂尔多斯017000 [2]中煤科工集团北京华宇工程有限公司,北京100120

出　　处：《煤炭工程》2023年第5期26-31,共6页Coal Engineering

基　　金：李家壕煤矿智能选煤厂关键技术研究与示范工程(GJNY-20-237-1)。

摘　　要：目前重介质分选由于过程复杂、且生产过程干扰较大,具有强非线性等特点。因此,重介质分选过程的自适应控制成为生产提质增效的关键。针对重介质分选密度回路和重介质分选过程的非线性特点,提出了一种多模型切换自适应控制方法。该方法首先采用随机向量函数链接网络(RVFLN)估计系统未建模动态项,并设计了线性和非线性自适应控制器,在此基础上,设计了切换机制,使两种控制器切换作用,提高了系统控制性能,提升控制精度,进而增加选煤厂的经济效益。最后采用万利一矿选煤厂的实际运行数据对重介质分选密度回路进行了仿真实验,验证了该方法的有效性。The dense medium separation process often has strong nonlinear characteristics due to the complex process and the large disturbance.A multi-model switching adaptive control method is proposed for the density loop of dense medium separation.First,random vector function link network(RVFLN)is employed to estimate the unmodeled dynamics of the system,and linear and nonlinear adaptive controllers are designed.Based on them,the switching mechanism is designed to make the controllers switch according to the raw coal quality,and further improves the control performance and accuracy,thereby improving the economic efficiency of coal preparation plants.Finally,simulation experiments with actual operation data of Wanli No.1 Coal Preparation Plant is carried out on the density loop of dense medium separation,which shows the effectiveness of the proposed method.

关 键 词：重介质分选 自适应切换控制 重介质悬浮液密度 

分 类 号：TD94[矿业工程—选矿]