Research On Site Selection Of Wind-hydrogen Coupling Power Plant Based On GIS And Multi-attribute Decision Making Approach

In order to deal with the increasingly serious energy shortage and environmental pollution,the utilization of clean energy including wind power has ushered in greater development opportunities and more urgent development needs.Based on the advantages of abundant wind resources,China’s wind power generation technology maturity and installed capacity has always been in the forefront of the world,but it is also faced with the inherent fluctuation and intermittenness of wind power grid connection problems,and wind curtailing and power limiting problems caused by the geographical reverse distribution of wind resources and population density.The coupling of hydrogen energy storage and wind power can not only effectively optimize its multi-time scale grid-connection characteristics,improve the stability and reliability of power system operation,but also convert excess wind power into hydrogen energy storage for a long time and reduce energy waste.However,the wind-hydrogen coupling power generation is still in the early stage of development,and there is still a lack of scientific and complete theoretical support for the site selection decision of the project.Therefore,this paper will study the site selection decision of the wind-hydrogen coupling power plant to ensure that it meets the multiple requirements of resources,geography,economy,society and environment,so as to obtain the optimal construction site of all parties.First of all,this paper analyzes and summarizes the research status of wind-hydrogen coupling power generation projects at home and abroad,the influencing factors of site selection and the method of site selection decision,defines the research content of this paper,and formulates the technical path of this paper.Then,the connotation of the wind-hydrogen coupling system of the research object is explained,and the relevant theories of geographic information system and multi-attribute decision method used in this paper are introduced in detail.Then,based on the factors influencing the site selection of single wind power plant and hydrogen production plant summarized in the literature review,and comprehensively considering the site selection characteristics of wind-hydrogen coupling power plant,this paper constructed a restriction index system including geographical factors and an evaluation index system including wind resources,economic factors,social factors and environmental factors.Then,based on geographic information system(GIS)and multi-attribute decision making method,a macro-micro two-stage decision making model of wind-hydrogen coupling power plant site selection is constructed.In the first stage,based on the restricted index system,the infeasible area was excluded and the suitability of feasible area was divided by using geographic information system to determine the candidate site located in the most suitable area for construction.In the second stage,the triangular intuitionistic fuzzy number is introduced to express the attribute value of qualitative evaluation index,the BWM-Entropy weight method is used to calculate the comprehensive weight of evaluation index,and the TODIM method is used to rank the alternative sites,so as to fully consider the risk avoidance psychology of decision-makers and get the comprehensive optimal development site.Finally,the paper takes Liaoning Province as an example to study the location decision of the wind-hydrogen coupling power plant in this region,which proves the feasibility and applicability of the model,and conducts sensitivity analysis on the decision results,which further verifies the stability and effectiveness of the model.The two-stage decision model established in this paper can provide scientific theoretical support for site selection decision of wind-hydrogen coupling power plant.