模糊专家系统在火电厂汽包水位运行故障诊断中的应用  

Research on Application of Fault Diagnosis for Drum Water Level Operation Based on Fuzzy Expert System in Thermal Power Plant

作　　者：马华杰[1] 王金梅[1] 

机构地区：[1]宁夏大学物理电气信息学院

出　　处：《电站系统工程》2012年第3期41-43,共3页Power System 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：介绍了火电厂汽包水位控制系统存在的问题及预警和诊断的重要性。提出了采用模糊专家系统方法对汽包水位运行故障进行诊断。该方法通过检测电厂实时数据库中出现的故障征兆,结合规则库中的知识,通过模糊推理机制,诊断出汽包水位在运行过程中可能发生的故障。诊断结论用故障置信度的趋势图来表示。通过诊断实例验证了该系统的实用性。The problem of drum water level control system is introduced.It is important to alarm in advance and diagnosis.A fuzzy expert system to realize operation fault diagnosis of drum water level is put forward.By monitoring real time database and combining knowledge base and adopting fuzzy reasoning mechanism,the fuzzy expert system could diagnose possible operation fault.The diagnostic result is showed by tendency chart of fault confidence.An example has proved the system developed is practical.

关 键 词：汽包水位 模糊专家系统 诊断 

分 类 号：TK31[动力工程及工程热物理—热能工程]