A comparative study of voltage controllers for series active power filter

• Published in: Electric power systems research 2010-06, Vol.80 (6), p.615-626
• Main Authors: Mekri, Fatiha, Machmoum, Mohamed, Aït-Ahmed, Nadia, Mazari, Benyouness
• Format: Article
• Language: English
• Subjects: Applied sciences; Automatic; Capacitors. Resistors. Filters; Electric power; Electrical engineering. Electrical power engineering; Electrical machines; Electrical power engineering; Engineering Sciences; Exact sciences and technology; Fuzzy logic control; Harmonics; Hysteresis; Operation. Load control. Reliability; PLL; Power electronics, power supplies; Power networks and lines; Regulation and control; Sag; Series active power filter; Various equipment and components
• ISSN: 0378-7796; 1873-2046
• DOI: 10.1016/j.epsr.2009.10.025

The series active power filter seems an ideal device to improve power quality. It allows to suppress and isolate voltage based distortion such as voltage unbalance, sag, interruption and voltage harmonics. In this paper, the determination of voltage references for series active power filter based on a robust three Phase digital Locked Loop system is analysed. Different control strategies are evaluated. In first hand, performances of two linear regulators: a polynomial controller based on a pole placement theory (called RST controller) and a Proportional Integral Derivative (PID) controller are studied and compared, in order to compensate different voltage perturbations in network. In second hand, a novel hysteresis band voltage control for a series active power filter is proposed to derive the switching signals and to improve the power quality. The study was carried on simulation via software Matlab/Simulink.