An Outage Management for Multiple Interconnected Microgrids Preserving Privacy in Transactive Energy Scheme

An Outage Management for Multiple Interconnected Microgrids Preserving Privacy in Transactive Energy Scheme

This paper presents an outage management problem to preserve privacy for multiple interconnected microgrids (MGs) in a transactive energy (TE) scheme. In this regard, this problem is modeled based on the alternating direction method of multipliers (ADMMs) approach. In this concept, after any unexpected outage in grids, all MGs adjust their optimal schedule individually; then, only bounded data will be exchanged to calculate the amount of trading required power. ADDM can repetitively converge local computed values in a few iterations. This way aims to protect prosumer's privacy and minimize total network cost. To guarantee the accuracy of trading values, the proposed methodology implements a DC optimal power flow (DC-OPF) model under a quadratic programming (QP) formulation. The proposed framework is considered on 4-MGs test grid and two cases are presented for detailed investigation. Numeric results confirm the efficient convergence speed and private performance of the proposed scheme.