Optimal Planning of a Distribution Network with P, PQV Buses by Jaya Algorithm

This article performs reconfiguration of the distribution network (DN), including distributed generations (DGs) with a new set of buses P, PQV. P-bus is a reactive power support bus that maintains specific voltage at a minimum voltage bus, i.e., PQV-bus. Optimal locations of multiple DGs are determined using sensitivity factors based on reducing power loss and improvement in voltages. The capacity of reactive power support, ratings of DGs, and switching configuration are optimized by employing the recently developed Jaya algorithm. DGs accommodation is followed in sequential and non-sequential approaches. Topology constraints of reconfiguration are validated utilizing a spanning tree concept from smart graph theory. The following constraints are applied to study the problem: voltage limits at buses, current-carrying limits of lines, radial configuration, and no isolated node in the network. The proposed method's applicability is demonstrated on IEEE 33 and 69 bus radial DNs. Numerical results illustrate the validity and efficacy of the suggested method in comparison with the other existing algorithms.