The Low Carbon Economic Dispatch Of Cogeneration Considering Comprehensive Demand Response

The energy structure and wind power ant-peak shaving characteristics in northern China bring challenges to the large-scale consumption of renewable energy wind power,and cause the problem of high carbon emissions.Demand response technology can fully tap the huge potential of user side regulation and provide a new method for low-carbon economic operation and wind power consumption of power system.Therefore,aiming at the problems of wind power consumption and high carbon emissions of the power industry,this paper introduces the carbon trading mechanism,and considers the impact of electricity heat integrated demand response on the scheduling of cogeneration system,which is of great significance to promote the efficient,economic and clean utilization of renewable energy.Firstly,this paper analyzes the research status of cogeneration system,summarizes the research on thermal power decoupling of cogeneration units,elaborates the related research on demand response and carbon trading mechanism at home and abroad,introduces its research in power system,and demonstrates the feasibility of realizing low-carbon optimal scheduling of cogeneration system through demand side management and carbon trading.Then,a low-carbon economic dispatch model of cogeneration system considering power demand response and carbon trading is proposed.The baseline method is adopted for carbon quota allocation,which improves the enthusiasm of enterprises to participate in the carbon market.The model aims at the lowest comprehensive operation cost,and at the same time,in order to ensure the comfort of users,the user satisfaction model is considered on the load side,taking into account the system operation process The factors of electric heat balance are discussed.The results show that the model can alleviate the "wind heat conflict" in the northern region,improve energy efficiency and realize the low-carbon economic operation of the system.In order to further solve the problem of "determining electricity by heat"aggravating wind abandonment in cogeneration system,based on the third chapter model,considering the impact of heat load demand response on the optimal operation of the system,the autoregressive moving average model(ARMA)is used to describe the heat load transmission delay,and considering the fuzziness of human body’s perception of temperature comfort,the heat load can be considered as flexible negative A low-carbon economic dispatch model of cogeneration system considering the comprehensive demand response of heat and electricity is constructed.The objective function is to minimize the operation cost of conventional thermal power unit,cogeneration unit,wind abandonment cost,demand response cost and carbon emission cost.The simulation results show that the proposed model can further decouple the thermal power unit and improve the economy and low-carbon performance of the system and renewable energy consumption.Carbon trading in power system operation can effectively reduce the competitiveness of thermal power units,and coordinated operation with power demand response can improve the economy and low-carbon of the system;in the cogeneration system,in-depth excavation of the demand response ability of thermal load and power load can improve the flexibility and low-carbon of units,and reduce the wind abandonment rate.