An ADMM Approach to Distributed Optimization in Distribution System Considering Fairness among Consumers

Abstract

In recent years, the installation of distributed energy resources such as photovoltaic(PV) generations progresses. However, in a distribution system with many distributed energy resources, the voltage of the distribution line rises due to the increase of reverse power flow. Therefore, many optimization methods related to voltage control are widely studied. Particularly, the application of distributed optimization is attracting attention because the centralized control is not suitable due to the security issue for consumers and the difficulty of calculating for a large scale system. The conventional studies control real power outputs and/or reactive power outputs of power conditioning systems to minimize power losses or maximize the total real power output in the line. However, the fairness among the consumers is not considered there. In this paper, we propose a distributed optimization model using the alternating direction method of multipliers (ADMM) and the ractive power control to assure the fairness of real and reactive power outputs among consumers.