{'fraction_non_alphanumeric': 0.010917030567685589, 'fraction_numerical': 0.0, 'mean_word_length': 5.4125874125874125, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Modeling of corona on overhead power lines using System Identification Toolbox implemented in Matlab

Corona phenomenon usually occurs on overhead power lines during direct lightning strikes. In such case, modeling of lightning overvoltages requires identification of corona parameters. They can be obtained from overvoltage registrations and identification procedures. The high efficient System Identification Toolbox implemented in Matlab package is used in the paper. The linear part of the corona model is analyzed based on the transfer functions determined in the Matlab toolbox. We show that the corona charge changes determined from the transfer function and directly from the corona charge-voltage characteristic are in good agreement. The presented approach is tested during computer simulations. It is shown that the corona effect on overhead power lines can be analysed in detail using the proposed model.