Computer Studies of the Operation of a Three-Phase Four Wire Shunt Active Power Filter Applied to the Industry

Abstract

As the industry progresses, power quality problems become more and more relevant. The increase of non-linear loads in industries, leads to higher current harmonic distortion and low power factor. In order to mitigate these problems, this paper validates a shunt active power filter (SAPF). The adopted topology and its control algorithm are analyzed through computer simulations considering real industrial load models, which were elaborated from data collected in power quality analyzers that were connected to different points of an industry. The results achieved validate the correct operation of the applied SAPF, as well as it presents the improvements obtained of the total current distortion and neutral current.