Reasearch on error identification of theoretical and statistical line losses

Statistical line loss is calculated on the basis of the electricity production and sales of electricity by measuring meter instructions. Theoretical line loss calculation of distribution network is to calculate the electric energy loss generated by each component in the process of transmission and distribution of electric energy and the proportion of all kinds of loss. It is a comprehensive economic and technical index of the electric power sector, and an important index of the national assessment of the electric power sector. In this paper, the error sources of statistical line loss and theoretical line loss are analyzed respectively, and the causes of line loss errors are located. Taking the IEEE 33 node case as an example, the value of line loss under specific errors is further calculated, and the causes of the errors are analyzed by comparison.