Allocation of controller and protective devices with the self-healing approach in smart distribution network

One of the preeminent features of distribution network automation to enhance the reliability is self-healing ability in these networks. Self-healing ability of a network requires protective and control equipment. The main contribution of this paper is to provide a comprehensive model for the measurement and location of the aforementioned equipment, taking into account the arrangement and coordination between the components and the consideration of momentary and permanent faults in the form of convex programming. Planning follows the optimality of a function that consists of different parts. The first part of the objective function is to optimize the economic index, including the cost of installing and annual repairing of equipment and the cost of customer blackout time during the study period. The second and third parts of the objective function provide the optimality of mean indexes of system interruption duration and momentary interruptions frequency mean, respectively. On the other hand, by analyzing the sensitivity to the maximum initial investment and the sensitivity coefficients defined in the objective function that weigh the parts of the target function, a comprehensive analysis of the impact of the using the equipment above on the distribution network is provided. The problem has been solved by BONMIN solver using General Algebraic Modeling System (GAMS) optimization software.