Maximizing delivery capability of unbalanced distribution networks for high penetration of distributed generation

Reconfiguration technique has been used to reduce networks losses, balance user loads and restore power supply after a power outage in a distribution system. With a large amount of uncontrollable distributed generation (DG) added into the distribution system, reconfiguration technique is also applied to deal with the interconnection capability of DG in a network. This paper aims to obtain the maximum DG power injection into the system, while satisfying current, voltage constraints and large enough load margin. A method based on reconfiguration technique to solve the issue aforementioned is presented. The Binary Particle Swarm Optimization (BPSO) is employed to solve the discrete nonlinear optimization problem. IEEE123 case, an unbalance three-phase distribution system, is used to verify the availability of the proposed methodology and the results from the simulation demonstrate the method proposed efficiency.