Study On The Selection Of 20kV Substation And Below For Civil Construction Based On IAHP And Grey Correlation Analysis

The civil building substation has a pivotal position in the civil construction.It is the source of electricity for various loads of civil buildings.Different from substations(stations)with high voltage levels(35kV and above)in transmission lines,civil building substations are located in residents' living quarters.Its economic operation,safety and reliability,and coordination with living environment directly affect the life of people.Therefore,it is of great significance to carry out research on the selection of the location of substations for civil buildings.This article is conducted on the premise of participating in the project related to the building substation during the internship phase.During the project,it was found that when planning and designing the substations for residential buildings,due to the one-sided design of the project designers and subjective psychological influences,unreasonable circumstances may occur when determining the location of substations for civil buildings.Or there will be a variety of options,making the progress of the project into a passive situation,and even affect the stability and reliability of the entire power system in civil buildings.Therefore,this article makes a comprehensive analysis of the factors that need to be taken into account when building residential buildings for power transformation,and builds a relatively complete index system model;then it proposes a complete set of theoretical methods for the emergence of multiple schemes in engineering design.Select the best situation.The method includes the use of improved Analytic Hierarchy Process(IAHP)to analyze the index system constructed.More than ten experts engaged in architectural design work are required to assign values to various factors in the indicator system.The calculated weight values can be used as the conclusions are directly applied to the engineering design planning;the defects of the AHP method alone are highly subjective and the values are subjective assignments by experts.Therefore,the gray correlation analysis method with strong objectivity is introduced,and the weights obtained by the AHPare introduced.The value is substituted into the calculation of the degree of association of the grey relational analysis,and the optimal solution after subjective and objective combination is obtained.Among them,quantitative and qualitative distinctions have also been made on various factors of the indicator system,and solutions have been given for the quantification of qualitative factors(opportunity coefficient estimation method).Compared with traditional experts,this method requires experts to give Fractional interval,and considering the expert's understanding of the goal,makes the quantification more accurate and reasonable.In the process of establishing the index system,this article has conducted a detailed analysis of various factors,including a detailed theoretical analysis of the power supply radius.Compared with the current standard,a more reasonable conclusion has been obtained,and in order to quantify the Factors;The index system formed has a certain degree of general practicality,and can be used as a detailed reference principle in the design of substations for civil buildings.The actual example selected in this article is the project that participated in the internship phase-----"E-zone Project of Dazhongyuan Logistics Port in Henan Province",and finally determined the most suitable plan in combination with the analysis method of the entire set of methods,which has certain practical value.