Client Development And Database Design Of Monitoring And Diagnosis System For Hydro Turbine Governor

Energy is the driving force of the continuous development of society,which is the cornerstone of maintaining national stability and security.As a key part of Chinese energy structure,hydropower plays an important role in power supply and peak load regulation.For a long time,the traditional maintenance methods of hydropower stations have the disadvantages of insufficient maintenance and excessive maintenance.The condition-based maintenance overcomes the shortcomings of traditional maintenance methods,effectively reduces the possibility of accidents in hydropower stations,and improves the economic benefits of the power stations.This paper focuses on the monitoring and diagnosis system of hydro turbine governor,focusing on the system database design and client software development.At first,the overall structure of the system is established,the functional modules of the system are divided in detail,the monitoring and diagnosis technology is discussed,the comprehensive database of the system is designed,and the real-time data storage strategy and the comprehensive compression scheme of historical data are proposed.Secondly,in order to reduce the influence of noise in the signal on the diagnosis result,the design of digital filter is studied deeply,the filter design module is developed,the method of calculating filter delay is proposed,and the correctness of digital filtering function is verified.Eventually,the client software of monitoring and diagnosis system for hydro turbine governor is developed by adopting the modular design idea and object-oriented programming thinking,using C++ as the development language,integrating Win Sock programming,database technology,hybrid programming and other technologies.The system has many functions such as real-time monitoring,fault diagnosis,data query,data compression,digital filtering and database maintenance.It can realize the centralized and unified management of data,and can accurately carry out the real-time monitoring and fault diagnosis.The system has perfect functions,high efficiency and reliability,simple operation,and good practicability.