| In recent years,under the dual pressure of environment and energy,various countries are actively carrying out research and development of new energy power generation technology and industrial development research,and photovoltaic power generation technology has been widely studied and promoted in practical application.However,the instability of photovoltaic output and the uncertainty of charging load lead to the intermittence of photovoltaic power and the random fluctuation of grid power.In order to make full use of photovoltaic energy and provide continuous and stable power supply to the load,it is necessary to introduce an energy storage system to play a regulating role between photovoltaic power generation and load power consumption.At the same time,China’s EV(Electric Vehicle)industry is in a critical period of rapid growth.However,due to the uncertainty and difference of ev user demand and behavior,the future large-scale ev charging load has the uncertain characteristics of randomness,intermittency and volatility in time and space,which will bring difficulties to the safe operation and optimal scheduling of the power grid.At this time,the introduction of photovoltaic power generation system and energy storage system into the design of ev charging facilities can reduce the power consumption cost of the facilities,improve the system efficiency and power supply reliability.To sum up,this paper innovatively integrates and optimizes photovoltaic,energy storage system and electric vehicle into a chain for research,forming a photovoltaic-energy storage-charging station value chain.Aiming at the analysis of the value capability in the value chain,the following research is carried out in this paper.(1)The value chain of photovoltaic-energy storage-charging station is constructed and the value chain capability analysis is carried out.Firstly,on the basis of summarizing the value chain theory,photovoltaic industry value chain,photovoltaic-energy storage-charging station value chain and photovoltaic-charging station value chain value capability analysis of the domestic and foreign research status,the status of the ev charging industry chain is sorted out.Secondly,considering the existence of multiple subjects such as photovoltaic,energy storage,charging station and large power grid,the photovoltaic-energy storage-charging station value chain is constructed,and each subject in the value chain is analyzed.Finally,taking the value chain of photovoltaic-energy storage-charging station as the research object,this paper summarizes the value capability of the value chain from the perspectives of value realization,value increment and value co-creation.(2)The value realization capability analysis model of photovoltaic-energy storage-charging station value chain is constructed.Firstly,in order to measure the value realization capability of the value chain of photovoltaic-energy storage-charging station,from the perspective of sustainable development,an evaluation index system consisting of 14 value chain value realization capability evaluation indexes was constructed with the economic value,social value and environmental value as the first-level evaluation indexes.Secondly,an evaluation model based on trapezoidal intuitionistic fuzzy number and cumulative prospect theory is proposed to evaluate the value realization capability of a single photovoltaic-energy storage-charging station value chain,and multi-objective particle swarm optimization algorithm is used to evaluate the value realization capability of multiple value chain combinations.Finally,the thesis carries out multi-scenario analysis,and selects the portfolio with the strongest value realization ability in multiple scenarios by using the proposed method.(3)The value increment capability analysis model of photovoltaic-energy storage-charging station value chain is constructed.Firstly,starting from the internal and external aspects of the system,the factors affecting the value increment capacity of the photovoltaic-energy storage-charging station value chain are sorted out.Then,in order to clear the relationship between the influencing factors and these factors from the Angle of quantitative research,the paper introduces a system dynamics model,after determining the system boundary,and formulate the resources circulation subsystem and node operation subsystem,user needs subsystem and subsystem of technological innovation,among them,the circulation of resources is the precondition of value-added,node is the assurance of value-added operations and user demand,technological innovation is the power of value-added;After that,the mathematical formula is constructed for the variables in the model and the validity of the whole model is tested.Finally,based on the research results of the system dynamics model,some policy Suggestions are put forward to enhance the value-adding capability of the value chain.(4)The value co-creation capability model of photovoltaic-energy storage-charging station value chain is constructed.In order to improve the value co-creation capability of the value chain,this paper will build an optimization model to determine the capacity configuration of photovoltaic and energy storage systems in the value chain,and determine the operating power and operating mode of each node under the condition of satisfying technical and economic constraints.The value chain constant volume and energy distribution model based on multi-agent and particle swarm optimization algorithm is constructed with the minimum KWH cost as the optimization objective,and the equation and inequality constraints are satisfied.Finally,based on the research results,policy Suggestions are put forward to enhance the value co-creation capability of the value chain.(5)A photovoltaic-energy storage-charging station value chain capacity analysis cloud platform is constructed.The construction of the cloud platform can promote the information interaction,collaboration,coupling and sharing among various subjects in the value chain,and improve the value chain.First,in order to break down the information barriers between the main bodies,the concept of data center was introduced into the system,and the photovoltaic-energy storage-charging station value chain data center was constructed.Secondly,the paper analyzes the requirements of the information cloud platform from the perspectives of value realization,value appreciation and value creation,and designs the cloud platform business process.Finally,based on the design principles of the information cloud platform,the structure,functions,modules and cloud service mode of the information cloud platform are designed on the framework of cloud computing.The previous theoretical analysis is translated into practical work,so as to improve the value analysis capability of the value chain of the photovoltaic-energy storage-charging station. |
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