Low-Carbon Economic Dispatch Of The Integrated Electrical And Heating System With Carbon Capture And Concentrating Solar Power Plant Considering Uncertainty

With the increasingly serious problem of climate change and the increasingly urgent need to implement the goals of carbon peaking and carbon neutrality,the power system is in urgent need of transforming to a low-carbon and clean direction.The development and maturity of integrated energy system(IES)technology points the way for transformation.In order to promote the low-carbon of the integrated electrical and heating system(IEHS),this paper introduces carbon capture and storage technology,transforming the thermal power units in the system into carbon capture units.However,there are some problems in the operation of the integrated electrical and heating system that may affect the performance of carbon capture units.Therefore,this paper further considers the concentrating solar power(CSP)plant and price-based demand response,and studies the dispatch of the low-carbon integrated electrical and heating system.The main research contents are as follows.Firstly,the operational principles and mathematical models of the carbon capture unit and the concentrating solar power plant are presented.On this basis,an integrated electrical and heating system with carbon capture and concentrating solar power plant is constructed,and its operational characteristics are analyzed.At the same time,the principle of price-based demand response is elaborated in detail.Next,in order to optimize the operation of the system from both source and load sides,a two-stage dispatch model for the integrated electrical and heating system with carbon capture and concentrating solar power plant is constructed.In the first stage,a demand response model is constructed to dispatch the load with the goal of optimizing the load curve.In the second stage,the concentrating solar power plant that can provide heat is considered,and a low-carbon economic dispatch model of the integrated electrical and heating system with carbon capture and concentrating solar power plant is constructed to dispatch the system operation with the goal of minimizing the operating cost.By using the CPLEX solver to solve the model,the results of the dispatch are compared and analyzed,verifying the advantages of the proposed dispatch model in terms of low-carbon performance and economic performance,and analyzing the impact of heat storage capacity of the concentrating solar power plant and the carbon trading price on system operation.Finally,considering various uncertain factors on both sides of the source and load,a study was conducted on the dispatch problem considering uncertainty in the system constructed in this article.Firstly,a dispatch model based on fuzzy chance constraint is established by using fuzzy theory,and the main uncertain factors affecting the system operation are screened out through analyzing the simulation results.Furthermore,based on the theory of conditional value-at-risk,a low-carbon economic dispatch model of the integrated electrical and heating system considering conditional value-at-risk is constructed for the main uncertain factors,and the impact of the main uncertain factors on the results of dispatch is further quantitatively analyzed through simulation.