Research And Application Of Site Selection For Photovoltaic Power Station

With the proposal of Chinas "dual carbon" goal,green renewable energy represented by photovoltaics has ushered in a historic opportunity for priority development.In recent years,with the strong support of national policies,solar energy resources have been extensively developed and utilized,and photovoltaic power stations are being constructed all over the country.Problems such as high construction costs and difficulties in later maintenance are directly related to the site selection and planning of photovoltaic power stations in the early stage.Therefore,scientific and reasonable site selection can improve or even avoid these problems,and at the same time increase the experience of my countrys photovoltaic power station construction,which is of g reat significance to the rapid development of my countrys photovoltaic industry,and accelerates the realization of my countrys "dual carbon" goal.In this paper,taking Ningxia as an example,the location of photovoltaic power stations is studied by using GIS technology,combined with the combination weighting method based on analytic hierarchy process(AHP)and coefficient of variation(CV).The main research contents of this paper are as follows:(1)Data acquisition and processing.By consulting a large number of domestic and foreign information on the site selection of photovoltaic power stations,determine the eight main factors affecting the site selection,including solar radiation,sunshine hours,slope,aspect,temperature,distance from roads,distance from residential areas,and land type,and then download the corresponding data from the National Meteorological Science Data Center,Geospatial Data Cloud,Globe Land30 and other websites,and then use Python Arc GIS,My SQL and other software process the original data of 8 factors,and finally obtain the grid data of 8 main influencing factors.(2)Obtain the weight value of the influencing factor.By consulting the analysis methods and decision models used in the site selection research at home and abroad in recent years,it is determined that the combination weighting method based on the analytic hierarchy process and the coefficient of variation method is the main site selection decision method in this paper.Then,the weights of each evaluation index are calculated by using the analytic hierarchy process(AHP)and the coefficient of variation(CV),and then the distance function is introduced to couple the weights obtained by the two methods to obtain the final weights of each evaluation index.(3)Construction and real analysis of site selection evaluation model.According to the grid data of each evaluation index and its corresponding weight value,the evaluation model of site selection suitability is constructed.Taking Ningxia region as an example,combining GIS spatial analysis method and suitability evaluation model,the suitability analysis and statistical analysis of PV power station location in Ningxia region are carried out.From the analysis results,the overall suitability of photovoltaic power station site selection in Ningxia is high.Figure [61] Table [28] Reference [84]...