Industrial Integrated Energy Microgrid Modeling And Multi-energy Flow Optimization Scheduling Method

As a major energy consumer,China's industrial enterprises account for about 70% of the country's total energy consumption.Therefore,it is of great significance to carry out energy conservation in the industrial sector.High-energy-consuming fields such as steel,building materials,petroleum,and chemical industries have always been the focus of energy-saving work.These areas of industrial micro-grid power,steam and other loads are relatively concentrated and demanding,resource and energy consumption and ecological environment issues are more prominent,it is necessary to build a green development model with low energy consumption and low emissions.This paper combines industrial micro-grid to carry out energy-saving optimization work and further explore its energy-saving potential.The main research work is as follows:Based on the overview of the physical structure,logistics,energy flow structure and operation status of industrial integrated energy microgrid,the performance model of common production equipment in the actual operation of industrial enterprises is proposed.Considering the impact of operational safety constraints,the daily operation cost is constructed.The smallest industrial enterprise microgrid cogeneration economic dispatch model.Compared with pre-optimization,this model can effectively reduce the energy cost of system operation.Aiming at the problem of high energy consumption level,energy management level and low energy utilization efficiency of industrial integrated energy microgrid,an industrial versatile complementary microgrid Energy Hub scheduling optimization model is proposed.A coal-gas-complementary cogeneration system model was established to quantitatively analyze the environmental treatment costs of atmospheric pollutants caused by fuel cost and consumption.Based on the coupling and complementary relationship between electric power and steam of various grades,an optimization model of industrial integrated energy microgrid energy hub considering waste heat recovery is proposed.The actual case analysis shows that the proposed model can improve the energy utilization efficiency of the system and further explore the space for energy saving and emission reduction of the industrial integrated energy microgrid.In view of the large energy consumption of industrial integrated energy microgrid,there is still a phenomenon that pollutant emissions are not up to standard.From the complementary coupling characteristics of power system and steam system,the power and various grade steam systems in the multi-energy industrial integrated energy microgrid are utilized.There is a complementary relationship,and an energy-optimized model of industrial integrated energy micro-grid with intermittent landscape new energy is proposed.The scene analysis method is used to deal with the uncertainty of the scenery output,and the scene of the wind and light output is obtained,and the generated scenery scene is combined to solve the above model.The results of the example show that the proposed model can improve the consumption of new energy such as scenery and light by coordinating the operation of various equipments of industrial integrated energy micro-grid,and provides a new way to solve the problem of new energy consumption.In conclusion,based on the establishment of the economic dispatch model of micro-grid cogeneration in industrial enterprises,this paper develops the coordinated operation of industrial multi-energy complementary micro-grid,and proposes the multienergy coupling mechanism of industrial integrated energy micro-grid and its Energy Hub model,which effectively improves The overall energy efficiency level of the system.In addition,a multi-energy flow industrial integrated energy microgrid scheduling optimization method with intermittent new energy access is proposed,which utilizes the coordination and cooperation between multiple energy flows of industrial integrated energy microgrids and new energy sources such as scenery.The system absorbs the ability of new energy sources and reduces the consumption of energy resources.