Study On Fault Forecasting Theory Of Complicated Systems And Application In Excitation Systems

In recent years, the causable disaster trouble usually happened because the key equipments break down. These serious fault or disaster trouble compelled that all countries government, society and researches have a high attention for the study of the fault prediction and fault diagnosis in the complicated system. However, the traditional fault diagnosis technique usually adopted prevention maintenance principle and it's carried on periodical check whether the equipments break down or not. All kind of industry enterprise also throws in a great deal of funds to use for the maintenance of the industry system and make it prolong the life of the normal running. Because of lack of circulate the accurate state judgment and the health analysis to the system, it should carry on a great deal of otiose maintain to the system equipment for safety consideration. And yet, with the quick development of modern industry and sciences technical, the industry equipments is gradually large-scale to run, continuously to turn, highly speed turns and automates. The function is more and more; the structure is also more and more complicated. So the traditional fault diagnosis method and technology already can't adapt the running demand of the complicated equipments system. For this reason, the fault prediction theories and application studies of the complicated system has been mostly attended in recent years and obtained some good results. Simultaneously, owing to Excitation systems are the key equipment of the power plants, its performance should direct work on the stability of the dynamoelectric capacity of the power plant. Thus, this has provided a well testing plat for the fault prediction theories of the complicated system.By reason of that, the key problem of this thesis discussed is the fault prediction theories of the complicated system and its application in excitation systems, with the background of the national natural science fund item" Reconfiguration of Fault Diagnosis System Based on Immune Response Theory and Comparability Principle", chong qing municipal education commission item"Complicated System Fault prediction theory and its application based on non-linear theory", Natural science fund item of Science and Technology department of Chongqing"Network Intelligence prediction theory and Application of complicted system"and Enterprise horizontal item"On-line fault diagnosis and prediction system of excitness system",it is carried on the detailed analysis to the movement mechanism and structure of the complicated...