Research On Distributed Energy Symbiosis Value Optimization Model Under The Coupling Of Resources And Demand

Actively developing and constructing distributed renewable energy projects is an inevitable choice to promote local energy consumption and improve ecological environment,as well as a key link to build China’s high percentage renewable energy power system.However,in the context of rapid development of distributed renewable energy industry,because of unscientific planning,it leads to the mismatch of renewable resource level,distributed power project configuration,and user-side demand intensity in geographic space in some regions,which gradually becomes the main challenge for the scale development of distributed power industry in China at present.The matching of renewable resource development,project-side planning and construction,and user-side demand is an important basis for the construction of modern energy system under the situation of high proportion of new energy penetration,and the symbiotic value of distributed energy "Resource Development(R)-Project Construction(P)-User’s Demand(D)" system determines its energy development level and consumption effect.Therefore,it is of great theoretical and practical significance for distributed renewable energy planning and project development to carry out research related to the optimization model of distributed energy symbiotic value under the coupling of resource and demand.In recent years,with the strong support of national policies,the overall scale of distributed renewable energy projects has been rising,which makes the RPD symbiotic system become more massive,the number of sectors involved in the system gradually increases,and at the same time,the connection between each subsystem is getting closer and closer,and the interaction of energy,information and value between the sectors is becoming more and more frequent.At the same time,in the RPD symbiosis system of distributed renewable energy projects with resource and demand coupling,resource development,project construction and customer-side operation broaden the scope of traditional electricity market technologies,which are connected with each other according to energy development,transmission and use,constituting the RPD symbiosis system of distributed renewable energy projects with multiple flows of capital flow,value flow,information flow,power flow and energy flow.Therefore,this dissertation takes the distributed renewable energy RPD symbiosis system as the research object,and deeply analyzes the symbiosis mode,spatial characteristics,evolution trend and symbiosis value of distributed renewable energy RPD system,so as to provide decision support for the industrial planning and project investment development of regional distributed renewable energy.In order to enable the rational exploitation of renewable energy resources in each region to alleviate the spatial variability presented in their development in different regions,this study constructs an RPD symbiosis system that integrates distributed energy projects under the coupling of resources and demand,and further explores the symbiotic value optimization problem of distributed energy RPD system.The research in this dissertation consists of the following three parts.(1)The symbiosis theory is applied to construct a distributed energy "resourceproject-demand" RPD symbiosis system,and the symbiosis conditions,symbiosis mechanism,symbiosis connotation,symbiosis structure,symbiosis nature and symbiosis mode of the RPD system are analyzed in depth,which realizes the symbiosis theory in the symbiosis theory is applied in the RPD symbiosis system that integrates distributed energy projects under the coupling of resource and demand.In addition,the paper also closely combines the operational characteristics of energy power system,based on the goal of symbiotic value optimization of RPD system of distributed energy projects,establishes the symbiotic synergistic evolution model of RPD system,analyzes the synergistic relationship among resource subsystem,project subsystem and demand subsystem,and explores the symbiotic stability and symbiotic synergistic evolution direction of RPD system based on the principle of equilibrium point analysis of differential equation.Based on the simulation analysis using MATLAB software,the interrelationships and evolutionary trends among the symbiotic unit subsystems in the RPD system are simulated,and the effects of different influence coefficient parameters among the symbiotic units on the evolutionary path of the symbiotic system under different symbiotic behavior patterns and incentive situations are analyzed.(2)The symbiosis degree model and symbiosis coefficient model of distributed energy RPD system are constructed,and the symbiosis behavior pattern and state of Chinese provincial-regional distributed energy RPD system are measured empirically by using ArcGIS platform and SPSS tools.Based on the empirical analysis,policies and suggestions for the investment and development construction of regional distributed renewable energy projects are refined.Based on the industrial evolution theory and path dependence theory,the distributed energy development in China is divided into five stages,and the value enhancement method of distributed energy RPD symbiosis system under the joint action of multiple symbiotic parameters in each stage is refined.(3)The symbiotic value model of RPD system is constructed,and the symbiotic value optimization model of distributed renewable energy RPD system is established based on the optimization methods of RPD system symbiotic value and the selection of key elements of symbiotic system under different perspectives.The core concept of symbiotic value coefficients under different symbiotic behavior patterns is introduced to carry out the optimization study of symbiotic value of RPD system.The RPD symbiotic value optimization paths under different stages of symbiotic synergistic evolution are mapped,the possible optimization paths at each stage are discussed in detail,and the validity and feasibility of the proposed symbiotic value optimization model are verified with three different types of practical arithmetic examples,and countermeasure suggestions for promoting the symbiotic synergistic development of distributed energy RPD systems are put forward.The dissertation is based on the multidisciplinary intersection characteristics of management science and engineering research,reflecting the characteristics of multidisciplinary cross-fertilization,covering multidisciplinary methods including symbiosis theory in ecology,marginal utility and scale economy theory in economics,matrix theory and differential equation solution methods in mathematics,spatial analysis methods in geography,system engineering theory and system simulation.The dissertation is innovative in the following three aspects.(1)Based on the symbiosis theory approach,the symbiotic coupling mechanism and symbiotic synergistic relationship among the symbiotic units of the RPD system are analyzed,the RPD symbiosis system of distributed energy projects under the coupling of renewable resources and user demand are constructed,and the simulation analysis of the distributed energy RPD symbiosis system with and without external incentives under the multi-case symbiotic behavior model is carried out.(2)The symbiotic behavior pattern state of the provincial-regional RPD system in China is measured,and the symbiotic evolution path of the distributed renewable energy RPD system is given in the perspective of the steady state of the symbiosis system,path dependence,and industrial evolution.The scientific connotation of the symbiotic value of"renewable energy development,distributed project construction and customer energy demand" is proposed,and the symbiotic value model of "renewable energy development,distributed project construction and customer energy demand" is constructed.(3)The symbiotic value optimization model of distributed energy RPD system is constructed,and the methods and paths of symbiotic value optimization of distributed energy RPD system are proposed.The proposed RPD system symbiotic value optimization model is verified by using marginal utility theory and economy of scale theory,and the proposed measures to guide the symbiotic development and value enhancement of distributed energy project RPD system are proposed.The path of symbiotic value optimization is explored.Based on the symbiosis theory,this paper analyzes the construction investment scale of regional distributed renewable energy projects,so as to explore the optimization method of symbiotic value of RPD system of distributed renewable energy projects,and to promote the symbiotic development of "resource-project-demand" of distributed energy.This paper provides support for the symbiotic development of distributed energy projects and the optimization of project development and planning.