Optimal scheduling of integrated wind- photovoltaic-hydrogen energy system considering hydrogen application and waste heat recovery
Zhiwen Zhan, Junjie Xu, Tao Zhang, Xiangling Kong, Hao Li, Bohan Zhang
Abstract
In order to further promote the use of renewable energy sources such as wind-pv-hydrogen and carbon emission reduction in the park integrated energy system, battery fuel cell waste heat recovery is less considered and has a greater economic value, in this context, the paper proposes an optimal scheduling strategy for the park-level integrated energy system with hydrogen fuel cell vehicles (HFCV) taking into account the fuel cell waste heat recovery in order to improve the economic efficiency and stability characteristics of the system. In this paper, a fuel cell waste heat recovery model is constructed, followed by the introduction of a tiered carbon trading model, and then a scheduling model is constructed with the objective of minimizing the sum of the system's energy purchase cost, carbon trading cost, and the penalty cost for abandoning the wind and solar, and solved by CPLEX. Finally, the effectiveness of the proposed strategy is demonstrated through the analysis of a simulation example, which leads to a 30.7% reduction in the total system cost, a reduction in carbon emissions by 18.8% and a 34.2% reduction in the system's purchased energy cost compared to the conventional model.