Mixed integer linear programming method for active distribution network reconfiguration considering ZIP load model

With the grid connection of distributed generation and the increasing complexity of load types, the traditional distribution network reconfiguration model has not considered the integrated load model. Therefore, this paper proposes a mixed integer linear programming model of active distribution network (ADN) considering ZIP load model. Based on the second-order cone power flow model of radial distribution network, ZIP load model is equivalent to ZP load model by linear regression method, and the ADN reconfiguration model based on mixed integer second-order cone programming is established. The second-order cone constraint is linearized by polyhedron approximation, and the ADN reconfiguration model based on mixed integer linear programming is established. The simulation results of three different scale distribution systems show that the accuracy of the ADN reconfiguration model based on mixed integer linear programming is almost the same as that based on mixed integer second-order cone programming, but the optimization efficiency is improved by 15% $\sim$ 30%, which has high optimization accuracy and efficiency.