Optimal operation of distribution grids: A system of systems framework

There are many entities in the modern power systems that collaborate together to operate the system in a secure and reliable manner. Each of the entities is managed and operated autonomously and intends to increase its own benefit. This paper presents a system of systems (SOS) framework for optimal operation of distribution grids. The distribution grids are modeled as the SOS utilized by distribution companies (DISCOs) collaborating with different loads and microgrids. In this framework, the DISCO and microgrids are regarded as the individual systems which are independently managed and operated aiming at maximizing their own profit. Considering the correlation among the independent systems, the ORIGIN and CLIENT data are introduced and the relationship table is constructed to represent the correlated variables between the entities. The relationship table indicates the sequences of the optimization problems for the entities. The proposed framework is applied to a typical distribution grid and results are discussed.