Research and Application of “Source-Network-Load-Storage” Coordination Optimization Technology Based on Cloud Platform

With the rapid development of new energy and DC, new technologies such as energy storage are emerging, and the characteristics of power grids are becoming more and more complex. The traditional dispatching mode of "source following load" has been difficult to deal with this situation. Considering the characteristics of the existing domestic power grid automation and information systems, a coordinated and optimized structure of source-network-load-storage integration of power information and physical integration is proposed, and then a technical solution based on the "State Grid Cloud Platform + Data Center" system architecture is formed, and compared with the traditional smart grid-based dispatch control system function expansion plan, Pros and cons of the plan are analyzed from the three aspects of system operation safety, inputoutput ratio and system maintenance cost. Two key technologies are given for multi-dimensional aggregation model construction and ubiquitous coordination and optimization of source-networkload-storage interaction. The developed ubiquitous dispatching control system with multiple coordinated source, grid, load and storage was put into operation in the East China Electric Power Control Sub-center of State Grid. The construction cost is relatively small, the effect of renewable energy consumption is obvious, and the grid operation is safe and reliable. The scheme has important reference significance for the coordination and optimization construction of the multiple coordination of the source network.