A Theoretical Line Loss Calculation Method Based on Data Partition

Aiming at the problem that the rich data resources of the power grid are not fully utilized, and the current line loss statistical methods have large errors, a Newton method of calculating line loss based on data partitions is proposed. This method classifies grid nodes according to the type of grid data, calculates the injected power of each node, and obtains a complete line power model, and then establishes the boundary equivalence principle of grid division to realize arbitrary regional division of the grid. Based on the division of the power grid, the node Newton method is used to calculate the network loss of each sub-net. Finally, the original method (four-division method) and this method are used to calculate the power grid data in a certain area separately. By comparing the results, it can be seen that the accuracy of the line loss of this method is far greater than that of the original calculation method, which greatly improves the flexibility of smart grid line loss management and the accuracy of line loss calculation.