摘要
大型汽轮机设备工作状态性能的好坏直接影响到电厂运行的安全性和经济性,对其进行状态监测及状态综合评价很有必要。为克服传统状态评价方法的缺陷和不足,引入相对劣化度概念,充分利用设备运行参数、状态监测参数和运行统计参数,融合汽轮机本体振动信号、轴系运行参数以及通流部分热效率等多类信息,建立了应用相对劣化度的评价模型,开发了汽轮机本体状态综合评价系统并将其成功应用于国产300 MW汽轮机本体状态综合评价中。研究结果表明,该方法合理有效,评价结果可为以后的本体维修决策提供科学依据。
Since the state of operational performance of large steam turbine＇ s proper has a direct influence on the safety and economy of power plants, it is quite necessary to monitor and evaluate comprehensively it state of operation in order to overcome the imperfections and insufficiencies of conventional ways of evaluating mechanical states. The concept of relative degree of inferiority is introduced and a model for comprehensive state evaluation of steam turbines proper elaborated, together with the corresponding evaluation system, by using operation data, condition monitoring data, and operational statistical data further by fusing multi-source information, such as vibration signals of the turbine proper, operation parameters of the rotor string, thermal efficiency of the flow pass etc. A comprehensive state evaluation system has herewith been developed for the domestic manufactured 300 MW steam turbine proper. Research results show that this method is reasonable and effective, and evaluation results may be used as a scientific basis for making decisions concerning maintenance work. Figs 2, table 1 and refs 6.
出处
《动力工程》
EI
CSCD
北大核心
2006年第4期507-510,共4页
Power Engineering
关键词
自动控制技术
汽轮机状态综合评价
相对劣化度模型
状态监测
autocontrol technique
steam turbine＇s condition monitoring
comprehensive state evaluation
relative inferiority degree model
