Open AccessSuppression factor as evaluation criterion for wide‐frequency filtering equipment
Author(s) -
Durna Emre,
Ermiş Muammer
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8011
Subject(s) - harmonics , active filter , control theory (sociology) , power factor , harmonic , electronic filter , computer science , filter (signal processing) , electronic engineering , engineering , acoustics , voltage , physics , electrical engineering , control (management) , artificial intelligence , computer vision
Here, a novel harmonic suppression performance criterion, namely suppression factor (SF), is suggested for the wide‐frequency power filtering equipment. Performances of single‐tuned passive filter, combination of passive filters tuned to various frequencies, shunt active power filter (APF), and a shunt hybrid active power filter (HAPF) topologies have been evaluated considering their SF values over a defined frequency range. Moreover, effect of the control method for the active filtering equipment on SF values is also analysed by comparing both theoretical and the experimental results. The frequency range of harmonics to be suppressed is chosen using the field measurements of Induction melting furnace (IMF) load, one of the most problematic loads in terms of interharmonics, and a field implemented HAPF system is used for the experimental verifications.