Low-carbon economic dispatch of integrated energy systems in industrial parks based on shared hybrid electric-hydrogen-natural gas energy storage

Renewable and clean energy has become a core driver for the low-carbon transformation of integrated energy systems in industrial parks (IPIES). However, with the intermittent and fluctuating characteristics of renewable energy, the stability and economy of system operation are significantly constrained. Therefore, this study proposed a low-carbon economic tuning model for the IPIES based on shared hybrid electric-hydrogen-natural gas energy storage (IPIES<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">SHES</inf>) considering carbon emissions. Firstly, the IPIES<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">SHES</inf> with grid, natural gas grid, and hydrogen market trading is established. Then three cases with different energy storage planning are set up and optimally solved using the multi-objective particle swarm optimization algorithm. Finally, by analyzing the results of the three case comparisons, it is concluded that energy storage can improve the utilization of renewable energy and that the carbon emission and total cost of shared hybrid energy storage are lower than that of individual energy storage systems. Therefore, the low-carbon economic regulation model of the IPIES<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">SHES</inf> is effective, and the carbon emissions and total cost of the park are reduced.