The closed-loop control of the half-bridge-based MMC drive with variable DC-link voltage
Αποθηκεύτηκε σε:
| Συγγραφείς: | , , , , , , |
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| Μορφή: | artículo original |
| Ημερομηνία έκδοσης: | 2023 |
| Περιγραφή: | The modular multilevel converter (MMC) based on half-bridge modules is a power converter topology suitable for high-power medium-voltage variable-speed drives. However, the voltage of its flying capacitors is negatively affected when low frequencies appear at the AC port. This paper analyzes the influence of using a variable DC port voltage in a machine-side MMC by implementing a closed-loop approach, ensuring a constant voltage fluctuation in the capacitors of the MMC during the whole operating range. The effectiveness of the proposed control scheme is demonstrated through simulation studies and experimental validation tests conducted using a 7.5 kW experimental prototype composed of an induction machine fed by an MMC with 18 half-bridge cells. |
| Χώρα: | Kérwá |
| Ίδρυμα: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| Γλώσσα: | Inglés |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/103102 |
| Διαθέσιμο Online: | https://hdl.handle.net/10669/103102 https://doi.org/10.3390/electronics12132791 |
| Λέξη-Κλειδί : | modular multilevel converter machine drive dynamic modeling |