Improvement of Dynamic Behavior of Shunt Active Power Filter Using Fuzzy Instantaneous Power Theory

Nasser Eskandarian; Yousef Alinejad Beromi; Shahrokh Farhangi

Improvement of Dynamic Behavior of Shunt Active Power Filter Using Fuzzy Instantaneous Power Theory

Nasser Eskandarian

Yousef Alinejad Beromi

Shahrokh Farhangi

Vol. 14, No. 6, pp. 1303-1313, Nov. 2014

10.6113/JPE.2014.14.6.1303

Fuzzy instantaneous power (FIP) theory

Fuzzy logic controller

p?q theory

Time-varying harmonic

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Abstract

Dynamic behavior of the harmonic detection part of an active power filter (APF) has an essential role in filter compensationperformances during transient conditions. Instantaneous power (p?q) theory is extensively used to design harmonic detectors foractive filters. Large overshoot of p?q theory method deteriorates filter response at a large and rapid load change. In this study theharmonic estimation of an APF during transient conditions for balanced three-phase nonlinear loads is conducted. A novel fuzzyinstantaneous power (FIP) theory is proposed to improve conventional p?q theory dynamic performances during transientconditions to adapt automatically to any random and rapid nonlinear load change. Adding fuzzy rules in p?q theory improves thedecomposition of the alternating current components of active and reactive power signals and develops correct reference duringrapid and random current variation. Modifying p?q theory internal high-pass filter performance using fuzzy rules without anydrawback is a prospect. In the simulated system using MATLAB/SIMULINK, the shunt active filter is connected to a rapidlytime-varying nonlinear load. The harmonic detection parts of the shunt active filter are developed for FIP theory-based and p?qtheory-based algorithms. The harmonic detector hardware is also developed using the TMS320F28335 digital signal processor andconnected to a laboratory nonlinear load. The software is developed for FIP theory-based and p?q theory-based algorithms. Thesimulation and experimental tests results verify the ability of the new technique in harmonic detection of rapid changing nonlinearloads.

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Cite this article

[IEEE Style]

N. Eskandarian, Y. A. Beromi, S. Farhangi, "Improvement of Dynamic Behavior of Shunt Active Power Filter Using Fuzzy Instantaneous Power Theory," Journal of Power Electronics, vol. 14, no. 6, pp. 1303-1313, 2014. DOI: 10.6113/JPE.2014.14.6.1303.

[ACM Style]

Nasser Eskandarian, Yousef Alinejad Beromi, and Shahrokh Farhangi. 2014. Improvement of Dynamic Behavior of Shunt Active Power Filter Using Fuzzy Instantaneous Power Theory. Journal of Power Electronics, 14, 6, (2014), 1303-1313. DOI: 10.6113/JPE.2014.14.6.1303.