Scheme Comparison of Substation Expansion and Energy Storage Station Co-construction Based on Improved AHP-FCE

With the development of the social economy, the increase in urban load density leads to the shortage of substation power supply capacity. In order to meet the demand for short-term peak load, two schemes are typically adopted: substation capacity expansion and co-construction of energy storage stations. However, both schemes have their advantages and disadvantages. In order to better select the scheme, it is necessary to establish a reasonable comprehensive evaluation index system. This paper proposes a scheme comparison method based on improved AHP (Analytical Hierarchy Process) – FCE (Fuzzy Comprehensive Evaluation). We construct the evaluation index system for substation capacity expansion and co-construction of energy storage stations. Then, the comprehensive evaluation scores under the two schemes are obtained using the AHP method to calculate the weight of each index, combined with fuzzy comprehensive evaluation.