Comparative Analysis between PI and Fuzzy Controllers for Dc Voltage Control of Unbalanced 4 Wire Shunt Active Power Filter
Journal: International Journal of Engineering Research (IJER) (Vol.5, No. 12)Publication Date: 2016-12-01
Authors : Ahmed A. Mansour; Mona M. Mamdouh; Sameh F.S. Eid;
Page : 948-953
Keywords : Power quality; Harmonics current; Shunt active power filter; DQ0 extraction technique; PI controller; Fuzzy logic controller; Hysteresis PWM-unbalanced loads.;
Abstract
This research proposes a shunt active power filter (SAPF) for harmonics mitigation in order to improve power quality of the electrical network. The reference harmonic current extraction technique used was based on DQ0 power theory under unbalanced non-linear loads conditions for four wire-installed systems. The DC-link voltage plays an important role in SAPF design to guarantee both steady high voltage level for harmonics current chopping and support the inverter power losses. In order to maintain constant DC link voltage, two different controllers are used; PI controller and fuzzy logic controller. A comparative analysis has done between the two controllers. Hysteresis PWM has used for current conditioning.
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Last modified: 2016-12-14 21:42:05