Research On Multi-objective Model And Algorithm Of Optimal Selection Of Emergency Material Reserve For Hydropower Project

Due to the frequent occurrence of emergencies such as debris flows,rainstorms,and earthquakes,the safety of hydropower engineering facilities is affected by it.At the same time,if the main project has emergencies such as dam breaks and flooding,the safety of life and property of the people in the upstream and downstream will be affected.Serious threats,in order to reduce the impact caused by hydropower engineering facilities,improve the prevention and disposal capacity of hydropower engineering facilities for emergencies,and improve the emergency supplies storage and rescue system will be crucial,so this article is in the existing emergency supplies Based on the research on the location selection of the storage warehouse,the research on the location selection of the emergency material storage warehouse for the hydropower engineering facilities is carried out.First of all,the candidate sites of the material reserve are initially selected under the consideration of the safety of the emergency material reserve.On this basis,the improved multi-target location of the emergency material reserve is established by considering the geographical location of the hydropower project and traffic conditions.The model and the design optimization algorithm are implemented by software,and finally applied to the location study of the emergency supplies of Guanyinyan Reservoir.The main research contents and conclusions of this article are as follows:(1)Firstly,by referring to relevant data,establish an evaluation index system for the location selection of emergency supplies reserve for hydropower projects,use regret theory to calculate the utility value and regret value of interval evaluation information,and then obtain the comprehensive perceived utility value of evaluation information,Consider the consistency of group decision-making opinions and the uncertainty of decision-makers’ decision-making information,construct a model to solve the weights of decision-makers based on the gray correlation of each decision-maker’s opinion and the decision-maker’s group opinion,and the grayness of each decision-maker’s evaluation information,and use the gray target The decision-making method gathers the decision information,compares the comprehensive bullseye distance of each scheme,and finally sorts the advantages and disadvantages,and selects the appropriate address as an alternative.(2)Under the conditions of the primary selection of the emergency material reserve library,according to the traditional maximum coverage model,considering the characteristics of hydropower projects,based on the traditional time satisfaction theory,using the time satisfaction function,traffic satisfaction and road damage coefficient construction Based on the maximum coverage single objective model with the largest multiattribute satisfaction function;secondly,based on the premise of the transportation efficiency of the storage point to the demand point,the weight of the demand point is determined from the population,economy,and traffic accessibility,and the shortest path method is used to establish a time-effective single The target model,once again considering that the storage point and the demand point are restricted by the road traffic conditions,establish a single target model based on traffic accessibility,and finally consider the economic conditions of the construction of the storage reservoir,establish a single target model that considers economics,and finally consider each single The application scope of the target model is based on the multi-attribute satisfaction coverage maximization,the total weighted distance minimum,traffic accessibility,economic multi-objective model and constraints.(3)Through the analysis and comparison of multi-objective model solving algorithms,a hybrid algorithm of genetic algorithm and particle swarm optimization algorithm is designed to solve the model,and finally the theory and algorithm of this study are applied to engineering examples.(4)The results of engineering examples show that the regret theory and multi-objective model used in the preliminary selection of the emergency material storage warehouse in this study have better feasibility,applicability and scientificity for the location of the emergency material storage warehouse of the hydropower project.The designed genetic and particle swarm optimization algorithms have stronger advantages in terms of both convergence effect and search range.