Low-Carbon Economic Dispatch Method for Integrated Energy System Considering Seasonal Carbon Flow Dynamic Balance

• Published in: IEEE transactions on sustainable energy Vol. 14; no. 1; pp. 1 - 10
• Main Authors: Yan, Ning, Ma, Guangchao, Li, Xiangjun, Guerrero, Josep M.
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.01.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Carbon; Carbon dioxide; Cogeneration; Costs; Dispatching; Economics; Emissions; Emissions trading; Energy; Energy flow; energy hub; Energy storage; Impact analysis; Integrated energy system; Integrated energy systems; Optimization; optimized-stepped carbon price; Power dispatch; Resistance heating; seasonal carbon flow balance
• ISSN: 1949-3029; 1949-3037
• DOI: 10.1109/TSTE.2022.3220797

In order to solve the problems of excessive carbon emissions and environmental pollution caused by the current carbon trading policy, this paper breaks the traditional annual carbon trading mechanism and proposes an integrated energy system (IES) optimal dispatching method considering the seasonal carbon trading mechanism. Firstly, in order to ensure the dynamic balance of the multi-energy flow in the IES, the carbon flow equivalent to the electricity-gas-heat energy flow is introduced into the energy hub model, and the multi-energy flow energy hub model is established. Secondly, an optimized-stepped carbon trading mechanism is formulated to ensure internal carbon balance and restrain carbon emissions to prevent the annual carbon emissions settlement of the IES from exceeding the standard. Finally, according to the energy supply demand of the IES in different seasons, a seasonal carbon trading mechanism is formulated, which comprehensively considers carbon emissions and economics to optimize dispatch. The impact of the optimized-stepped carbon price and seasonal dispatch on carbon emissions and economics is compared. The cost of using the optimized-stepped carbon price is reduced by at least 14.50%, and carbon emissions are reduced by at least 2.54%. Under guaranteeing the same carbon emission quota, the IES net-benefit is increased by 6.8%.