热力发电2018，Vol.47Issue(2)：97-102,113,7.DOI:10.19666/j.rlfd.201705037
双进双出钢球磨煤机制粉系统煤粉流量软测量
Soft-sensing of pulverized coal mass flow rate in a double-input and double-output ball mill pulverizing system
摘要
Abstract
To meet the demands of accuracy and reliability of the measurement of pulverized coal mass flow rate for the coordinated system,a method of soft-sensing for pulverized coal mass flow rate was proposed.According to the characteristics of each signal that can affect the pulverized coal mass flow rate,the Kalman filter was used to fuse the valve opening and the inlet air pressure at low coal feed rate and the wavelet filter was applied to fuse the capacity air quantity and the flow velocity of outlet gas-solid mixture at high coal feed rate.Then,the fusion signal of capacity air quantity can be obtained.Furthermore,to reduce the nonlinear error,the ratio of primary air to coal was corrected by employing the signal of coal level and capacity air quantity.The results show that,the soft-sensing signal based on multi-source information fusion has the advantages of small linear error,less high-frequency interference and high reliability.关键词
双进双出钢球磨煤机/煤粉流量/容量风/一次风煤比/软测量/信息融合/卡尔曼滤波器/小波滤波器Key words
double-input and double-output ball mill/pulverized coal mass flow rate/capacity air/ratio of primary air to coal/soft-sensing/information fusion/Kalman filter/wavelet filter分类
能源科技引用本文复制引用
孟令虎,刘鑫屏..双进双出钢球磨煤机制粉系统煤粉流量软测量[J].热力发电,2018,47(2):97-102,113,7.基金项目
国家重点基础研究发展计划项目(973计划)(2012CB215203) （973计划）
中央高校基本科研业务费专项资金资助(2014MS145)National Key Basic Research Project (973 Program) (2012CB215203) （2014MS145）
Fundamental Research Funds for the Central Universities(2014MS145) （2014MS145）
