考虑换电站的综合能源系统低碳经济调度

As a distributed energy storage and demand response resource, battery swapping stations can provide greater flexibility for dispatching an integrated energy system. Carbon trading effectively improves the energy utilization efficiency and reduces environmental pollution. This study proposes a low-carbon economic dispatch model for an integrated energy system considering the battery swapping stations. First, the topology of the integrated energy system considering the battery swapping stations is established. Next, a reward and punishment-type stepped carbon trading mechanism is introduced, and a low-carbon economic dispatch model with the lowest system operating and carbon trading costs as the optimization objectives is established. The original model is transformed into a mixed-integer linear programming problem through piecewise linear interpolation. The model is then formulated using Yalmip and solved by employing the Cplex solver. The comparative analysis results of the different operating modes of the battery swapping station reveal that the station with ordered charging and discharging has flexible scheduling advantages in the integrated energy system. This station charges batteries during off-peak hours and flexibly releases energy during peak hours, thereby effectively reducing the load peak and narrowing the peak-valley difference. The reward and punishment-type stepped carbon trading mechanism also provides economic incentives for the integrated energy system. Profits can be obtained by selling surplus carbon quotas, which helps reduce the carbon trading costs. An analysis of the carbon trading price parameters shows that the carbon trading price increase will encourage the integrated energy system to increase the proportion of low-carbon energy, reduce carbon emissions, and maintain the system's economic and environmental sustainability.

Keywords： battery swap station ; B2G ; reward and punishment type of stepped carbon trading ; Integrated energy system ; low-carbon economic dispatch