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Optimal Operation For Integrated Electricity And Natural Gas System Considering Wind Power And Photovoltaic Uncertainty And Demand-Side Resources

Posted on:2024-02-17Degree:MasterType:Thesis
Country:ChinaCandidate:F LiuFull Text:PDF
GTID:2542307097963279Subject:Electrical engineering
Abstract/Summary:PDF Full Text Request
With the rapid development of the new energy industry and the guidance and support of relevant policy,the analysis and research of high-quality energy development in the energy transformation is an important research topic.However,the uncertainty of new energy poses challenges for its efficient consumption.In this situation,fully tapping the potential of demandside resources in the optimization operation of the integrated energy system is of great significance for achieving safe,efficient and economic operation of the integrated energy system.This article conducts research on the optimization operation of the integrated electricity and natural gas system considering wind power-photovoltaic uncertainties and demand-side resources,which plays an important role in promoting new energy consumption,achieving load peak shaving and valley filling,and improving the economic efficiency of the integrated energy system operation.Firstly,this article elaborates on the model and basic theory of the integrated electricity and natural gas system.The structure,equipment,and mathematical model of the integrated energy system of electricity and natural gas are mainly introduced,and the basic mathematical theory for subsequent research in this article is elaborated.Then,aiming at the risk problem caused by the wind power-photovoltaic uncertainties,the conditional value at risk theory(CVaR)is used to measure it,and the affine algorithm is introduced to characterize the uncertainty of P2G conversion efficiency.Considering the different operating modes and physical characteristics of the power system and natural gas system,as well as the technical and information barriers between their respective entities,adaptive penalty alternating direction multiplier method(ADMM)is used to achieve distributed optimization solutions for the integrated energy system of electricity and natural gas.Thirdly,from the perspective of the utilization mode of demandside resources,in view of the lack of user enthusiasm caused by the current fixed economic compensation standard for demand response,the ladder incentive mechanism is introduced to build a integrated demand response model to participate in the optimal operation;from the perspective of the utilization subject of demand-side resources,after modeling the operational characteristics of 5G base stations,5G communication base stations are used as demand-side resources to participate in optimized operation.Finally,the numerical results show that the model proposed in this paper has advantages in dealing with uncertainty risks,the ladder incentive mechanism helps to improve the enthusiasm of users to participate in demand response,and the participation of communication base stations in the optimal operation of the integrated energy system is conducive to new energy consumption,economic improvement,and the reduction of base station energy consumption.
Keywords/Search Tags:Integrated electricity and natural gas system, uncertainties, demand-side resources, conditional value at risk theory(CVaR), adaptive penalty ADMM
PDF Full Text Request
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