Abstract:Considering the development of DC transmission technology, the application of DC power distribution in distribution networks is the focus of future distribution network research. In order to solve the power supply recovery problem of AC/DC hybrid network in active distribution network, The article proposes an active distribution network power resto-ration scheme with DC distribution lines. When an AC distribution circuit failure occurs, the power restoration scheme will be considered under the influence of network loss, inverter, and distributed power supply on the DC side of the dis-tribution network; When a fault occurs on the DC distribution circuit, consider converting the DC-side operation mode or transferring the de-energized DC load to the planned island operation mode to ensure continuous power supply for important DC-side loads. The AC side and DC side constraints are proposed separately, under the constraint conditions, Select the network loss, the number of terminal-crossing voltage limit nodes, and the number of switch operations as an indicator,to construct an objective function, according to the matrix algorithm, big data analysis and processing are performed on different recovery schemes of the power restoration process, and the optimal solution is obtained. Through the improved IEEE123 node calculation example, the proposed scheme can effectively solve the power res-toration problem of active distribution networks.