Robust Operation of Distribution Systems with Uncertain Renewable Generation via Energy Sharing

The distribution power system is facing increasingly severe uncertainty due to the widespread adoption of renewable energy sources. Fortunately, flexible distributed energy resources (DERs) such as electric vehicles and energy storage offer potential solutions to this challenge when effectively coordinated. In this paper, we propose an energy sharing based demand response initiative to coordinate the DERs, which is then embedded in a two-stage robust operation model. The energy sharing scheme employs a generic supply-demand function that reveals prosumers’ preferences. The DERs participating in energy sharing play a Nash game. The existence and uniqueness of the Nash equilibrium are theoretically proven. The proposed energy sharing scheme is compared with the traditional individual and the centralized schemes. Theoretical analysis and case studies demonstrate the promising features of energy sharing for the robust operation of distribution systems with uncertain renewable generation.