Electric grid state estimation system and method based on boundary fusion

An electric grid state estimation system based on a boundary fusion, comprising an electric grid data acquisition module, a communication module and a data fusion module, wherein:

• the electric grid data acquisition module comprises a plurality of data acquisition units, the number of which is the same as that of divided regions, and the data acquisition units are used for acquiring a measurement value of each node, including active power and reactive power of each node, and power of each branch;
• the communication module comprises a plurality of data transmission units, the number of which is the same as that of the divided regions, and data collected by the data acquisition units is transmitted to the data fusion module by the data transmission units through a data transmitter;
• and
• the data fusion module comprises a local data unit and a state estimation unit, wherein the local data unit is used for storing electric grid network line parameters and a branch-node correlation matrix;
• the state estimation unit comprises a memory and a display, wherein the memory stores a computer-executable state estimation program based on the boundary fusion, wherein the program is executed to realize an electric grid state estimation based on the boundary fusion;
• and the display is used for displaying a state estimated value run and output by the state estimation program based on the boundary fusion.