Source-grid-load interaction research in power system

The large-scale access of flexible equipment and the in-depth development of electricity market form a two-way transmission of energy and information among source side, grid side and load side in future power system, which leads to an extensive source-grid-load interaction. A well-established source-grid-load interaction research will provide a theoretical basis to control the future power system and to guide its development. In this paper, the interactive system is further analyzed, the mathematical models of interaction excitation and interaction cost are proposed, the power balance in power system is expressed by probabilistic indexes, and eventually an optimal interaction framework is formed, a typical source-grid-load interaction process analysis shows that this framework can be used to find the optimal interaction strategy.