Distributed Optimal Power Flow Algorithm for Mesh Networks

In this paper, a distributed algorithm that can obtain the optimum solution of optimal power flow (OPF) problem over mesh network is proposed without requiring the form of central coordination. The mesh network OPF problem is solved in each radial network through the quadratic convex (QC) relaxation method simultaneously, with the interchange of boundary message between neighboring regions. The distributed quadratic convex relaxation algorithm is based on the modified alternating direction multiplier method (ADMM). The effectiveness of the algorithm is tested via numerical simulations in the IEEE 14-bus mesh network system.