Implementation and comparison of different switching techniques for shunt active power filters

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 com...

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Bibliographic Details
Main Author: Araújo, Ângelo (author)
Other Authors: Pinto, J. G. (author), Exposto, Bruno Fernandes (author), Couto, Carlos (author), Afonso, João L. (author)
Format: conferencePaper
Language:eng
Published: 2014
Subjects:
Online Access:http://hdl.handle.net/1822/39244
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/39244
Description
Summary: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.