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| 一种改进烟气含氧量软测量建模方法与仿真 | |
| 引用本文： | 陈彦桥,郭一,刘建民,刘金琨.一种改进烟气含氧量软测量建模方法与仿真[J].动力工程,2011,31(1). |
| 作者姓名： | 陈彦桥 郭一 刘建民 刘金琨 |
| 作者单位： | 1. 北京航空航天大学,自动化科学与电气工程学院,北京,100191;国电科学技术研究院,南京,210031 2. 北京航空航天大学,自动化科学与电气工程学院,北京,100191 3. 国电科学技术研究院,南京,210031 |
| 摘 要： | 针对锅炉尾部烟气含氧量对提高锅炉燃烧效率的重要性,通过机理分析方法建立氧量软测量模型,并对该模型进行以下改进:使用历史数据拟合算法对炉膛总风量进行修正;使用幅值限制滤波器对热量信号中的汽包压力进行滤波以改善氧量软测量过程的动态响应;通过数据挖掘方法确定单位热量所消耗的标准状态下的最佳过量空气系数.利用某电厂历史数据进行仿真,根据方差、相关系数和最大偏差指标,证明了改进氧量软测量模型的有效性. |
| 关 键 词： | 软测量 烟气含氧量 机理分析 数据挖掘 |
An Improved Modeling Method for Soft-sensing of Oxygen Content in Flue Gas and the Simulation |
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| CHEN Yan-qiao , GUO Yi , LIU Jian-min , LIU Jin-kun.An Improved Modeling Method for Soft-sensing of Oxygen Content in Flue Gas and the Simulation[J].Power Engineering,2011,31(1). | |
| Authors: | CHEN Yan-qiao GUO Yi LIU Jian-min LIU Jin-kun |
| Affiliation: | CHEN Yan-qiao~(1,2),GUO Yi~1,LIU Jian-min~2,LIU Jin-kun~1(1.School of Automation Science and Electrical Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China,2.Guodian Science and Technology Research Institute,Nanjing 210031,China) |
| Abstract: | Aiming at the importance of oxygen content in flue gas at tail part of the boiler to combustion efficiency,a soft-sensing model of oxygen content was set up through mechanism analysis.Following modifications were carried out for the model: adopting history-data-fitting algorithm to modify the total air flow in furnace;using amplitude limiting filter for filtration of boiler drum pressure in heat signals to improve the dynamic response of soft-sensing process for oxygen content;determining the optimum excess... |
| Keywords: | soft-sensing oxygen content in flue gas mechanism analysis data digging |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
