A New Technique of Harmonic Currents Extraction Based on a Fuzzy Logic Controller Applied to the PV-SAPF System
In this paper, an efficient new harmonic extraction technique based on a fuzzy logic controller is proposed and applied to a photovoltaic shunt active power filter system (PV-SAPF). So as to overcome the limitation of the conventional Synchronous Reference Frame (SRF) control method of the PVSAPF, using a Low Pass filter (LPF), this new and simple Fuzzy Synchronous Reference Frame technique (FSRF) is proposed. The simulation results, performed in a Matlab/Simulink environment under online variation of system parameters, show that the proposed FSRF technique combined with a Fuzzy Vdc controller gives a fast and an accurate harmonic-extraction results, reduces up to ten times the overshoot than the conventional SRF, minimizes the response time, and significantly decreases the value and the peaks of the total harmonic distortion THD as well.
KeywordsThe harmonic currents extraction A Fuzzy Synchronous Reference Frame technique (FSRF) The dynamic performance improvement The total harmonic distortion THD
- 4.Blooming, T.M., Carnovale, D.J.: Application of IEEE Std 519-1992 harmonic limits. IEEE (2006). https://doi.org/10.1109/PAPCON.2006.1673767, ISBN 1-4244-0282-4
- 8.Massoud, A.M., Finney, S.J., Williams, B.W.: Review of harmonic current extraction techniques for an active power filter. IEEE (2004). ISBN 0-7803-8746-5Google Scholar
- 10.Asiminoael, L., Blaabjerg, F., Hansen, S.: Harmonic detection methods for active power filter applications. IEEE Ind. Appl. Mag. 1077–2618 (2007)Google Scholar
- 11.Bhattacharjee, K.: Harmonic mitigation by SRF theory based active power filter using adaptive hysteresis control. IEEE (2014). 978-1-4799-3421-8114Google Scholar