Verification Approach for the Topology between the Medium-Voltage Line and the Distribution Transformers

With the advance of the society, the topology of the distribution network tends to be increasingly complex, especially for the topology between the medium-voltage line and the distribution transformers. And the three-phase load is always unbalanced. Thus, it is challenge to verify the topology between the medium-voltage line and the distribution transformers. In order to address this problem, we propose a novel approach for topology verification. In particular, the sequences of voltages are collected from the distribution network and denoted as raw data. Then, the raw data are optimized. It is worth mentioning that topology verification with raw data will lead to error connections. Next, the topology between the medium-voltage line and the distribution transformers is verified based on the optimized data with Pearson correlation. Last, the effectiveness of the proposed approach has been tested by using the data collected from the practical scenarios.