Affiliations: [a] Centre for Electromagnetic and Lightning Protection
Research (CELP), Faculty of Engineering, University Putra Malaysia, UPM,
Serdang, Selangor, Malaysia | [b] Department of Electrical, Firoozkooh Branch, Islamic
Azad University, Firoozkooh, Iran | [c] Department of Electrical, Semnan Branch, Islamic Azad
University, Semnan, Iran
Correspondence:
[*]
Corresponding author: M. Izadi, Centre for Electromagnetic and
Lightning Protection Research (CELP), Faculty of Engineering, University Putra
Malaysia, UPM, Serdang, Selangor 43400, Malaysia. E-mail: aryaphase@yahoo.com
Abstract: In this study an inverse procedure algorithm is proposed in the time
domain to evaluate lightning return stroke current based on measured
electromagnetic fields at an observation point. The proposed method considers
on all electromagnetic fields components and can evaluate full shape of
current, velocity and constant parameters of current models in contrast with
previous studies. In order to validate the proposed method, a set of measured
electromagnetic fields are applied on proposed algorithm and the evaluated
currents are compared to the corresponding measured current as well as the
results are discussed accordingly. The proposed method can be used for
preparing of current data bank that is very useful for considering on lightning
effects on the power lines and setting appropriate protection levels on the power systems.
