The optimization effect and application value of network reconfiguration scheme can be improved considering the three-phase unbalanced operation of distribution network and the uncertainty of injection power. Firstly

the uncertainty of distributed generators and load injection power is modeled by the affine number

and the reconfiguration period is divided. The two-stage robust dynamic reconfiguration model of distribution network with uncertainty budget is established based on the three-phase Distflow power flow equation

which takes optimal active power of network loss as objective function. In order to efficiently solve the model

an optimal equidistant piecewise linear approximation algorithm is adopted for the precision-controlled linear relaxation of the model

and the column-and-constraint generation method is used to solve it iteratively. A standardized distribution test system is used to verify the feasibility and effectiveness of the proposed model

which shows that the conservatism and robustness of the reconfiguration scheme can be further adjusted by controlling the uncertainty budget.