Energy Optimal Dispatching of Ports Multi-Energy Integrated System Considering Optimal Carbon Flow

Abstract

As a major carbon emitter, how to create an effective path for low-carbon actions in the ports is extremely urgent. In view of the abundant renewable energy resources and hydrogen equipment in the ports, a multi-source output hydrogen storage coordination system in the ports is built to achieve the purpose of carbon reduction. From the perspective of multi-energy and low-carbon economic operation in the ports, an optimal operation method of multi-source output in the ports based on the optimal carbon emission flow(CEF) is proposed to take into account both carbon emission and economy. Based on the calculation method of the nodal carbon intensity of the power system, the calculation model of the carbon potential of the electric energy storage device and the electric hydrogen conversion device under the new power system is defined; Then, a multi-objective function with the lowest carbon emission and the maximum system economic benefit is established considering the influence of the charging and discharging depth and the number of cycles of the energy storage device; Finally, a non-dominated sorting genetic algorithm II (NSGA-II) is used to analyze a ports scenario integrated with new energy, electric energy storage equipment, and electric hydrogen conversion equipment. The results show that the proposed optimal operation method can effectively reduce the carbon emissions of the ports and improve the economy of the power system in the ports.