China Electric Power Research Institute(Nanjing), Nanjing 210003, China

According to the development trend of source-grid-load interaction, the requirements of source-grid-load interaction simulation technology are analyzed. The framework of interactive simulation platform is proposed, and the deployment of functional modules and data flow are expounded. This paper proposes the interaction simulation technology including the interactive resources modeling method in a hierarchical data base, deploying method of the communication system among interactive simulation platform and dispatching and control system, real-time simulation mechanism, and the advanced algorithm for system frequency calculation based on dynamic power flow simulation. At the same time, the simulation method of large users who can participate in precise load shedding program and frequency response program and thermostatically-controlled loads are expounded. A source-grid-load interactive operation simulation prototype system is built, and the effects of the system simulation are analyzed.