Research On Capacity Configuration And Profit Allocation Of Photovoltaic Power Generation And Thermal Power Generation Bundling Under Carbon Constraint

Under the goal of "double carbon",China is actively developing renewable energy and reducing carbon emission,and the scale development of renewable energy power has become an important means to promote the green transformation of energy structure.Although China is accelerating the construction of renewable energy power such as photovoltaic power generation,thermal power still dominates in the power supply structure.In recent years,due to the frequent occurrence of climate warming and extreme weather,China’s local power shortage,power supply is insufficient,thermal power still needs stable development.In order to promote the green transformation of the power supply structure,China proposes that new thermal power units need to have peak-adjustment capacity and promote the complementary advantages of various power sources.Among the renewable power sources,photovoltaic power generation has the advantages of flexible assembly and strong applicability,and is one of the most promising power sources to participate in bundling power generation,but the practical and theoretical research on the photovoltaic-thermal bundling power generation system is still far from meeting the real demand.Against this background,this paper firstly compares and summarizes the current status of research on electrical energy co-development,electrical energy bundling generation and its economic benefits,and summarizes the theories of sustainable development,stakeholder theory,thermal unit peaking and other related theories.Secondly,based on the daily operating costs of different thermal units in the peaking stage,we construct a daily generation cost model including PV and thermal power bundling,and through simulation examples,we derive the daily operating costs of photovoltaic-thermal bundling power generation and explore the optimal capacity allocation of photovoltaic-thermal bundling power generation.Again,the net profit function of photovoltaic-thermal bundling generation is constructed based on cooperative game theory,and the total bundled profit of photovoltaic and thermal units is redistributed through the Sharpley value.On this basis,the modified Shapley value is calculated by considering the peak regulation contribution,carbon reduction contribution and generation efficiency contribution coefficient,and the profit initially divided by the Shapley value is adjusted,and the fairness of the modified value is verified by arithmetic examples.Finally,based on the above study,it is concluded that,first,the economic benefits of bundling thermal units with photovoltaic generating units are optimal in the conventional peaking stage,followed by peak regulation without oil injection,and peak regulation with oil injection is the worst.Second,the optimal capacity configuration is when the photovoltaic generation ratio is 50% in the photovoltaic-thermal bundling generation system.Third,the profit of the photovoltaic-thermal bundling power generation adjusted by the modified Shapley value is more equitable and can motivate each generating unit to actively participate in the bundling.The recommendations of this study,such as optimizing the capacity allocation of photovoltaic-thermal bundling and distributing the total bundling profit fairly,can improve the efficiency of power energy utilization,which is of great practical significance for promoting the green transformation of power system and achieving the goal of "double carbon" in China.