Title :
Implementation and comparison of different switching techniques for shunt active power filters
Author :
Araujo, Angelo ; Pinto, J.G. ; Exposto, Bruno ; Couto, Carlos ; Afonso, Joao L.
Author_Institution :
ALGORITMI Res. Centre, Univ. of Minho, Guimaraes, Portugal
Abstract :
This paper presents a comparison between three switching techniques that can be used in three-phase four-wire Shunt Active Power Filters (SAPFs). The implemented switching techniques are: Periodic-Sampling (PS), Triangular Carrier Pulse-Width Modulation (TC-PWM) and Space Vector PWM (SVPWM). The comparison between them is made in terms of the compensated currents THD%, implementation complexity, necessary CPU time and SAPF efficiency. To perform this comparison are presented and analyzed several experimental results, obtained with a 20 kVA Shunt Active Power Filter prototype, specially developed for this purpose. The control system of the developed SAPF is based in the p-q Theory with a grid synchronization algorithm p-PLL.
Keywords :
PWM power convertors; active filters; harmonic distortion; power harmonic filters; power system control; THD; apparent power 20 kVA; control system; four wire power filter; p-PLL grid synchronization algorithm; p-q theory; periodic sampling switching; shunt active power filters; space vector PWM switching; switching technique; three phase power filter; triangular carrier pulse width modulation switching; Active filters; Inverters; Shunts (electrical); Space vector pulse width modulation; Switches; Vectors; Periodic Sampling (PS); Shunt Active Power Filter (SAPF); Space Vector PWM (SVPWM); Switching Techniques; Triangular Carrier Pulse-Width Modulation (TC PWM);
Conference_Titel :
Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE
DOI :
10.1109/IECON.2014.7048703
