Abstract
Compared with the traditional AC distribution network, the DC distribution network has many unique advantages and is one of the important ways for the large-scale consumption and grid connection of new energy. Among them, DC power flow analysis is the basis of DC distribution system planning, operation control and system maintenance. Aiming at the problems of new energy consumption and access of different types of loads in the DC distribution network, this paper proposes a power flow optimization method for the DC distribution network based on the Floyd-Warshall algorithm. Firstly, the node types of the DC distribution network are defined and the power flow calculation equation is derived. Secondly, the Floyd-Warshall shortest path algorithm is applied to balance the power nearby, and two algorithm evaluation indexes are defined. Finally, the modified IEEE9-bus DC system is taken as an example to verify the effectiveness and correctness of the proposed algorithm.
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