Research On Power Structure Optimization Of Wind-PV-Thermal Considering Economic And Welfare Equilibrium

Since the signing of the Paris Agreement,China is facing increasing pressure on carbon emission reduction.As a major carbon emitter,it is necessary for the power industry to bear the corresponding responsibility for carbon emission reduction.At present,vigorously developing wind power,photovoltaic and other renewable energy has become one of the effective ways to deal with carbon dioxide emissions and energy supply and demand gap.Bringing renewable energy into the optimal configuration of power supply structure and reducing carbon emissions at the root will help promote the construction of clean,low-carbon,safe and efficient modern energy system.In order to reduce the economic cost of power planning and improve the social welfare benefits of renewable energy power generation,based on the traditional power planning model,this paper constructs a power planning optimization model considering the balance of economic and welfare.Through the scheme comparison,the paper verifies the practicability,validity and scientificity of the optimization model.First of all,the paper summarizes the theory of carbon trading mechanism,the development status of power planning model,uncertainty theory,social welfare and other related theories.Secondly,a power planning optimization model for determining the balance of economy and welfare in the environment is built with the goal of minimizing the cost and maximizing the social welfare.The supporting power supply of the 750 kV project in southern Xinjiang is selected as the calculation example of this paper,and the optimization model is applied to this.Through the comparison of the three planning modes,it can be concluded that the multi-objective scheme can better respond to the "low-carbon,economic,safe and efficient"energy development and utilization demands,and achieve the effective balance of cost and welfare.Therefore,based on the multi-objective planning scheme,considering the uncertainty and fuzziness of energy policy and economic factors in power planning,the optimization model of power planning with economic and welfare balance in uncertain environment is further constructed.In this paper,triangular fuzzy number and interval parameter planning are introduced to deal with the uncertainty of energy system.The optimization results show that the model takes into account the impact of uncertain factors on planning cost and social welfare,and realizes the optimal utilization of renewable energy while optimizing the configuration of power supply.This research shows that the energy system have a relatively low level of coal consumption intensity and carbon emission intensity,which can provide decision-making reference for policy makers.Based on the comparison of various models and scenarios,this paper studies another relatively new research idea of regional power structure optimization allocation in order to adapt to the development vision of large-scale renewable power sources and improve energy utilization efficiency under the low-carbon background,and puts forward corresponding suggestions.The future development of power planning should be committed to accelerating the construction of a clean,low-carbon,safe and efficient modern energy system.In terms of macro policies,we should actively promote the efficient and orderly development of clean energy,and constantly optimize the scale and layout of new energy construction,Secondly,efforts should be made to improve the social welfare brought about by the optimal allocation of energy,so as to achieve an effective balance between the economy and welfare in the field of energy.