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

Energies

Ioannis Bouloumpasis¹  Panagis Vovos²  Konstantinos Georgakas²  Nicholas A. Vovos² 

[1] Department of Electrical and Computer Engineering, Power Systems Laboratory, University of Patras, Panepistimioupoli, Patras, Rio GR26500, Greece;

关键词: current harmonic reduction;    active filter;    power quality;    buck-boost converter;    renewable energy source;   

DOI  :  10.3390/en8042295

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.