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Energies 2015, 8(4), 2295-2311; doi:10.3390/en8042295

Current Harmonics Compensation in Microgrids Exploiting the Power Electronics Interfaces of Renewable Energy Sources

Department of Electrical and Computer Engineering, Power Systems Laboratory, University of Patras, Panepistimioupoli, Patras, Rio GR26500, Greece
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Author to whom correspondence should be addressed.
Academic Editor: Antonella Battaglini
Received: 15 November 2014 / Revised: 13 January 2015 / Accepted: 12 March 2015 / Published: 25 March 2015
(This article belongs to the Special Issue Microgrids)
View Full-Text   |   Download PDF [2118 KB, uploaded 25 March 2015]   |  

Abstract

This work presents a method of current harmonic reduction in a distorted distribution system. In order to evaluate the proposed method a grid with high-order current harmonics is assumed. The reduction of current distortion is feasible due to the pulse modulation of an active filter, which consists of a buck-boost converter connected back-to-back to a polarity swapping inverter. For a practical application, this system would be the power electronic interface of a Renewable Energy Source (RES) and therefore it changes a source of harmonics to a damping harmonics system. Using the proposed method, the current Total Harmonic Distortion (THD) of the grid is reduced below the acceptable limits and thus the general power quality of the system is improved. Simulations in the MATLAB/SIMULINK platform and experiments have been performed in order to verify the effectiveness of the proposed method. View Full-Text
Keywords: current harmonic reduction; active filter; power quality; buck-boost converter; renewable energy source current harmonic reduction; active filter; power quality; buck-boost converter; renewable energy source
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Bouloumpasis, I.; Vovos, P.; Georgakas, K.; Vovos, N.A. Current Harmonics Compensation in Microgrids Exploiting the Power Electronics Interfaces of Renewable Energy Sources. Energies 2015, 8, 2295-2311.

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