| With the rapid development of China’s economy,the energy consumption structure dominated by fossil energy makes China’s social development face an increasingly severe energy crisis and environmental pressure.Accelerating the development of clean energy and the clean transition of energy production have become an important way for sustainable energy development in China.The development and utilization of renewable energy in China has been rapidly advancing in the past decade,and China has become the largest installed capacity of wind power and photovoltaic power in the world.However,subject to the volatility and intermittency of renewable energy sources,its large-scale grid connection has brought new challenges to the operation of grid.How to effectively use clean energy and overcome its random nature of power generation play a key role in the healthy development of clean energy in China.The promotion of clean energy heating based on electric energy in Beijing can,on the one hand,promote the green transformation of the heat energy structure and fundamentally ease the supply of fossil fuels and the emission of atmospheric pollutants.On the other hand,it can effectively use the space-time endowments of renewable energy sources and alleviate abandonment of clean energy like wind power.At the same time,the implementation of user-side demand response can motivate users to participate in system scheduling.It has important theoretical value and practical significance for promoting the integration and optimization of wind power generation and integration.In this context,this paper has carried out research on the optimized combination approach and comprehensive benefit evaluation mechanism for wind power heating operation of Beijing in conjunction with existing research results.Firstly,the background of the research on the economic analysis and operation optimization of wind power heating technology is analyzed,and the research status at home and abroad related to this topic is combed and summarized,and the technical route of this paper is designed.Secondly,according to the heating area and the current status of heat load,combined with urban and suburban heating related documents,the electric heating area and load demand of Beijing in the next five years are predicted,and the incremental load demand for electric heating in Beijing is analyzed.Thirdly,a model for estimating the wind power heating threshold value in Beijing based on the centralized heating and decentralized heat was constructed considering power consumption side and power supply side.Then,a wind power heating system was designed with the participation of electric load,heat load and demand response,and a wind power heating operation optimization model was constructed with the objective function of maximizing operational efficiency and minimizing load fluctuations.The paper selected the experimental site of electric heating in Hanhe Village in Beijing and rural households in Miyun District as examples.The results of the example show that:The electric and heat demand response jointly participate in the system operation can fully realize different target requirements,and fully utilize the wind power and natural gas to meet the user’s electricity and heat demand,and can achieve the best overall system operation effect.Finally,a comprehensive evaluation model of wind power heating in Beijing was designed.The evaluation index system was constructed from the perspectives of economic,environmental and social benefit,and the index weighting model and comprehensive benefit fuzzy evaluation model were constructed.The results of calculation examples show that the proposed model can fully and effectively evaluate the comprehensive benefits of wind power heating in Beijing,and the wind power heating system considering demand response have the best benefits.The research in this paper provides a reference for the theoretical research of wind power supply and related industrial project planning in Beijing. |
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