Abstract
The integrated energy system(IES) can be run in a more efficient way than the separated systems, which will be important for energy efficient utilization and carbon emission reduction. Under the global carbon emission reduction target, the carbon emission problem of IES becomes more and more prominent. Increasing the use of new energy, carbon capture (CCS) is an important measure to reduce carbon emissions. However, there are some problems, such as insufficient consumption of renewable energy, serious wind and light abandonment, and unclear utilization mode of carbon dioxide, which limit the emission reduction effect of the above two measures.Therefore, this paper establishes an economic optimization scheduling model combining heat and power generation(CHP) with carbon capture (CCS), electricity to gas (P2G) and energy storage under high proportion of renewable energy, and uses the interior point method (IPOPT) to solve the model. Based on the background of carbon trading, the operation effect of the integrated energy system in a park under multiple scenarios was compared. The results show that the coupled system significantly improves the renewable energy efficiency and reduces the carbon emission and daily operating cost compared with the traditional model. This study provides a new idea for improving the installed capacity of renewable energy and the utilization of CO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> .
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