模糊专家系统在循环流化床锅炉运行诊断中的应用研究  

Research on Application of Operational Fault Diagnosis for Circulating Fluidized Bed Boiler Based on Fuzzy Expert System

作　　者：马华杰[1] 王金梅[1] 朱瑜红[1] 

机构地区：[1]宁夏大学物理电气信息学院

出　　处：《自动化与信息工程》2012年第4期20-22,26,共4页Automation & Information Engineering

基　　金：国家自然科学基金项目(51167015);宁夏大学科学研究基金资助项目(ZR1109)

摘　　要：从循环流化床锅炉系统的实际特点出发,提出了采用模糊专家系统对循环流化床锅炉运行故障进行诊断。给出了该专家系统的结构,阐述了隶属函数的选取和规则的表示问题。该系统通过检测数据库及锅炉参数表,利用隶属函数库,得出故障初始征兆及可信度,然后利用规则匹配算法及置信度求值公式得出诊断结论。最后通过诊断实例验证了该系统的正确性和可行性。According to actual characteristics of circulating fluidized bed boiler, a fuzzy expert system to realize operation fault diagnosis of circulating fluidized bed boiler is put forward. The structure of expert system is given. The question how to choose membership function and express knowledge are formulated. By monitoring database and parameter list, the correlate fuzzy fact is generated. Combining the rule matching algorithm and confidence formula, the possible fault is diagnosed. An example shows that the system developed is correct and practical.

关 键 词：循环流化床锅炉 模糊专家系统 运行诊断 

分 类 号：TM621.2[电气工程—电力系统及自动化] TP182[自动化与计算机技术—控制理论与控制工程]