Capacity Optimization and Allocation of Port Hybrid AC-DC Electric-Hydrogen Coupling System for Reduce Carbon Emissions

• Published in: IEEE transactions on intelligent transportation systems 2024-11, p.1-14
• Main Authors: Liu, Qiran, Huo, Qunhai, Yin, Jingyuan, Ni, Jianfu, Zhu, Jinda, Wei, Tongzhen
• Format: Article
• Language: English
• Subjects: Batteries; capacity optimization and allocation; Costs; Cranes; Electricity; Fuel cells; hybrid AC–DC power grid; Hybrid power systems; Hydrogen; Hydrogen storage; multiple types of hydrogen load dispatch; Port electric-hydrogen coupling system; Renewable energy sources; Seaports
• ISSN: 1524-9050; 1558-0016
• DOI: 10.1109/TITS.2024.3485184

With the increasing proportion of renewable energy integration in port areas, the trend of replacing conventional fossil energy load with electricity and hydrogen is becoming prominent, posing challenges to the safe operation of traditional port electrical systems. To address the above issues, firstly, we propose a novel architecture for a hybrid AC-DC electric-hydrogen coupling system, improving the scheduling flexibility. Then, we propose the energy management strategy considering multi-type hydrogen load dispatching based on the system, 100% local use of renewable energy is achieved. Lastly, we propose the equipment capacity configuration optimization method based on the strategy, considering various investment and operation costs of the port electric-hydrogen coupling system, which increases the annual income by 32.5% at an additional cost of only 6.3%, indicating great improvement in the economy while ensuing renewable energy consumption. The program is implemented on the MATLAB + YALMIP platform, and optimization models are solved using GUROBI. The simulation results validate the economic, low-carbon emissions and technical feasibility of the proposed system with its operation strategy and capacity configuration scheme.