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EnglishHarmonics detection is a critical element of active power filters. A previous review has shown that the Recursive Discrete Fourier Transform and the Instantaneous p-q Theory are effective solutions to extracting power harmonics in single-phase and three-phase power systems, respectively. This paper presents the operating principle of a new modulation function integral observer algorithm that offers a fast solution for the extraction of the fundamental current and the total harmonic current when compared with existing methods. The proposed method can be applied to both single- and three-phase systems. The observer-based algorithm has an advantageous feature of being able to be tuned offline for a specific application, having fast convergence and producing estimated fundamental component with high circularity. It has been tested with both simulations and practical measurements for extracting the total harmonic current in a highly efficient manner. The results have confirmed that the proposed tool offers a new and highly effective alternative to the smart grid industry.
| Titolo: | A Fast-Convergent Modulation Integral Observer for Online Detection of the Fundamental and Harmonics in Grid-Connected Power Electronics Systems |
| Autori: | |
| Data di pubblicazione: | 2017 |
| Stato di pubblicazione: | Pubblicato |
| Rivista: | |
| Abstract: | Harmonics detection is a critical element of active power filters. A previous review has shown that the Recursive Discrete Fourier Transform and the Instantaneous p-q Theory are effective solutions to extracting power harmonics in single-phase and three-phase power systems, respectively. This paper presents the operating principle of a new modulation function integral observer algorithm that offers a fast solution for the extraction of the fundamental current and the total harmonic current when compared with existing methods. The proposed method can be applied to both single- and three-phase systems. The observer-based algorithm has an advantageous feature of being able to be tuned offline for a specific application, having fast convergence and producing estimated fundamental component with high circularity. It has been tested with both simulations and practical measurements for extracting the total harmonic current in a highly efficient manner. The results have confirmed that the proposed tool offers a new and highly effective alternative to the smart grid industry. |
| Handle: | http://hdl.handle.net/11368/2879021 |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1109/TPEL.2016.2570821 |
| URL: | http://ieeexplore.ieee.org/document/7473876/ |
| Appare nelle tipologie: | 1.1 Articolo in Rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Chen_Pin_Ng_Parisini_Hui_TPEL_Accepted_Version_6_5_2016.pdf | Articolo finale accettato | Bozza finale post-referaggio (post-print) | Digital Rights Management non definito | Open Access Visualizza/Apri |
| Chen_Pin_NG_Parisini_Hui_TPEL_2017.pdf | Articolo pubblicato | Documento in Versione Editoriale | Digital Rights Management non definito | Administrator Richiedi una copia |
http://hdl.handle.net/11368/2879021
