OSV-MPC for Harmonic and Zero-Sequence Compensation in Four-Wire Off-Grid Microgeneration Systems Based on SEIG
| Autor: | Carlos A. Souza, Gabriel Maier Cocco, Robinson F. de Camargo, Fábio E. Bisogno, Martin Wolter |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Eletrônica de Potência, Vol 29 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1414-8862 1984-557X |
| DOI: | 10.18618/REP.e202458 |
| Popis: | This paper proposes a finite control set model predictive control (FCS-MPC) strategy to address voltage regulation in isolated four-wire microgeneration systems based on self-excited induction generators. The FCS-MPC approach enables a simpler and more functional imbalance controller design. The controller determines the optimal switching vector through a cost function that employs a weighting factor for the different control variables. It effectively tracks distorted current references and prevents voltage imbalance, even in a system without frequency regulation. The employed inverter is a four-leg voltage source inverter, also known as a distribution static synchronous compensator, which provides the necessary reactive power and compensates for harmonic content along with the zero-sequence component, ensuring balanced three-phase voltages at the point of common coupling, even with unbalanced loads. The proposed control leverages the instantaneous power theory for synchronization, thereby replacing methods such as the phase-locked loop. Experimental results validate the effectiveness of the proposed control approach and assess the performance of the system in accordance with power quality standards. |
| Databáze: | Directory of Open Access Journals |
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