Research On Line Identification System Base On SCADA Telemetry Data

The operating parameters and telemetry data of power system transmission line are the basic data of power system, and its accuracy and availability are vital to the safe and stable operation of power system. At present, the operating parameters of transmission line are mostly measured, because of the interference of the measurement process, and the error of the measured parameters is large. With the development of power system automation technology, the SCADA telemetry data is fully reliable, and has fully equipped with the basic conditions of the parameters of the line parameters.The Ningxia electric power company "based on SCADA telemetry data to identify the parameters of the transmission line system of R & D implementation based on, introduced the background of the topic and the main research work and domestic and foreign present research status. Then theoretically found reasons for bad telemetry data, and according to the steady-state data processing technology combined with the status of Ningxia electric power company dispatching automation system design technology verification program to identify the area to run line device impedance parameters; finally has carried on the research analysis to system on-line operation effect.Through the SCADA telemetry data identification line parameters, the parameters of transmission line can be improved, and the identification parameters can be verified by state estimation, and the qualified rate of the state estimation is improved.. Improve the accuracy of the equipment operation parameters, and provide the guarantee for power system advanced application and guarantee the safe and stable operation of power supply.