| With the rapid development of national economy, the higher requirement is needed for power generation. It is essential for existing power plants to alter and develop their mornitoring&control and management system, so that they can reach a more advanced level and raise their profits. At present the mornitoring&control and management system of most power generation units is rather undeveloped at home. This dissertation takes FT8 gas turbine power generation unit of Chengdu AESKH power plant as an example, discusses the alteration and implementation of its computer mornitoring&control system with defects.Firstly this dissertation studies the characteristics of current computer mornitoring&control system, points out its defects and indicates the essentiality of altering them. Secondly, according to investigation on site and the actual requirements of operators, maintenance and management personnel, it generalizes the requirement analysis and the general design project of developing a new system. Lastly, by analyzing the characteristics and main functions of Kingview, which is the latest industrial configuration software in automation field, it indicates that Kingview can meet the requirement of developing a brand-new system completely.Through Kingview, a new computer mornitoring&control system of FT8 power generation unit is developed in detail, which includes the realization of communication between Kingview and NETCON5000 PLC, the definition of data variables, the establishment of operating interfaces, alarm&event system, real-time&history trend curves, system safety management and system menu. Using the database access function of Kingview, the data transmission between the new system and management information system is realized. The new system can input data into the table of SQL Server database and query data from the database. Using the powerful network function of Kingview, the enterprise information network is established with three levels, which are management level, mornitoring&control level and site control level.The development and implementation of the new computer mornitoring&control system eliminates the defects of the old one radically. The new system operates steadily and reliably. It has good communication with NETCON5000 PLC , friendly interfaces, simple operation, comprehensive alarm&event system and real-time&history trend curves, and excellent security so that it can ensure the safe and reliable operation of FT8 power generation unit. With the realization of the data transmission between the new system and SQL Server database, and the realization of the enterprise information network with three levels, the management of the power plant is promoted. |
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