The Research Of Technical And Economic Evaluation Of The Construction Scheme Selection Of Wang Zhuang Substation In Qinhuangdao

With the development of urban economy, the demand for power is increasing, how to provide safe and reliable power supply for urban economic development has become a very important issue in the current urban development. In Qinhuangdao, with the continuous development of the economy, the current stage of the power grid structure is weak, as well as the transport capacity is gradually emerging. According to the present stage of the Qinhuangdao electric power demand forecast, in 2015, Qinhuangdao will reach the maximum load of 2800 MV, which will bring huge challenges to the power supply of Qinhuangdao city. So the construction of the Qinhuangdao Wang Zhuang substation to ease the tension in Qinhuangdao City, the power supply and improve the power grid structure to bring great help.In order to carry out a comprehensive technical and economic evaluation of Qinhuangdao Wang Zhuang 110 kV substation construction project, the paper is divided into several parts:First of all, the research background and significance of this paper are summarized,and the research status of the technology and economic evaluation of the substation construction project is summarized, and the research contents and methods of this paper are briefly introduced.Secondly, based on the detailed introduction of the theory and the method of AHP and fuzzy evaluation method, the paper introduces the necessity and rationality of the construction of Wang Zhuang 110 kV in Qinhuangdao.After determining the intelligent building scheme of Wang Zhuang substation in Qinhuangdao, the main connection mode and the selection of the two electrical equipments and the selection of the electrical equipments and the location and so on.According to the final structure of the technical and economic evaluation involved in the construction project of Qinhuangdao Wang Zhuang substation, the feasible project of Qinhuangdao Wang Zhuang transformer substation is determined. The comprehensiveevaluation index system, including technical level, economic benefit, environmental benefit and so on.