Improvement of power quality in grid-connected inverter through adaptation-based control strategy
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This paper describes power quality improvement, which has attracted the attention of the electricity distribution companies and subscribers. The idea of improving power quality is considered as the universal concept for various types of the power system disturbances. These aforementioned disturbances include noise, low voltage, overvoltage and middle harmonics, in general. The key goal of realizing the adaptation-based control strategy in this investigation is to reduce the grid current harmonics, in its efficient manner. It should be noted that there are some traditional and state-of-the-art techniques to improve power quality through the realization of active, passive or hybrid filters, respectively. In accordance with the growing applications of the renewable energy sources in distribution grids, the investigated research proposes the renewable energy sources in the studied grid. In the strategy presented here, the background of this topic is extensively considered and subsequently the above-referenced adaptation-based control strategy is designed, in order to deal with the converter signals, which are connected to the point of common coupling and also the direct current link. In summary, the main contribution of this investigation with respect to the state-of-the-art outcomes is made to improve power quality of the grid side and also to handle the transfer of the power between the renewable energies and the corresponding grid, as well. The validity of the investigated outcomes is tangibly verified by considering the benchmarks, correspondingly.
KeywordsPower quality Grid-connected inverter Renewable energy resources Point of common coupling Harmonics Nonlinear and unbalanced loads
The corresponding author would like to express the best and the warmest regard to the respected Editors of “Energy, Ecology and Environment, Springer Publisher, and also the whole of respected potential anonymous reviewers, for suggesting their impressive, constructive, desirable and technical comments on the present investigation to be improved. Moreover, Dr. Mazinan sincerely appreciates the Islamic Azad University (IAU), South Tehran Branch, Tehran, Iran, for sufficient supports in the process of research investigation and organization. At last, special thanks to Mr. Hossein Mazinan and Mrs. Zahra Rahmati for the efficient assistance and patience, in the procedure of realizing the present research.
Compliance with ethical standards
Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
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