Research on the Inversion of Measured Shielding Lightning Waveforms on 500 kV Transmission Line

In this paper, the consistency in time, space and amplitude was confirmed by obtaining the lightning current waveform data in the recorded waveform of the distributed fault location system installed on the 500 kV transmission line and comparing it with the query results of the lightning location system. Based on the actual line parameters and considering the impact corona effect during lightning strikes, this paper builds a PSCAD transmission line simulation model, inverts and calculates the lightning current waveforms, and ensures that the deviation between the simulated waveforms and the measured waveforms is within 10%. And accordingly proposed the characteristic parameter range of the lightning current waveform, which provides a scientific basis and technical support for the lightning protection of transmission lines.