An online calculation method of theoretical power losses for high-voltage distribution system based on rapid modeling and data quality analysis

This paper proposes an online calculation method of theoretical power losses for high-voltage(HV) distribution system based on rapid modeling and data quality analysis in order to improve the timeliness, accuracy and efficiency of the important task. At first the power grid structure model can be rapidly formed according to the basis data library transferred from the original PSD-BPA format file. Secondly, data quality analysis and estimation or correction technique could be implemented for these input load data coming from SCADA. Thirdly, the power flow and line loss for this HV power distribution system would be calculated by the classical Newton-Raphson method. Finally, statistical analysis may be done for these power loss calculation results, and consequently the reports for theoretical power loss calculation might be acquired in any customized format file. The test results for a HV distribution network in Zunyi, Guizhou show that the method is efficient and applicable, which may provide a certain reference for the development of theoretical power losses analysis for power distribution system.