PROJECT TITLE :

A Comprehensive Approach for Transient Performance of Grounding System in the Time Domain

ABSTRACT:

It is important to identify the impulse performance of the grounding system for lightning protection. But, the performance is nonlinear and dynamic underneath impulse condition. The electrical parameters of the grounding system are not only frequency dependent, but are time dependent. Moreover, the mutual couplings between the grounding conductors can't be ignored. Based on the hybrid electromagnetic method and vector fitting, a time-domain approach for the transient performance of the grounding system is developed. All the aforementioned phenomena can be lined during this methodology. Meanwhile, the sudden modification of the parameters resulting from the soil ionization is additionally successfully controlled during this paper. Compared with previous study results and field tests, the strategy proves to be reliable and effective.