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EnglishDead-time and switch voltage drops represent the most important sources of distortion of the (average) output voltage in pulsewidth modulation inverters. Their effect is a function of the parameters of the drive system and of the operating conditions and is often intolerable in many drives applications, thus requiring a proper compensation strategy. Many techniques are implemented in industrial drives and reported in the literature, even very recently. Differently from standard approaches, the proposed methodology is based on a detailed physical model of the power converter (including output capacitance), described by a small set of parameters. A novel self-commissioning identification procedure is introduced, adopting multiple linear regression. The technique is tested on a commercial drive in comparison with state-of-the-art techniques. In addition, back electromotive force estimation improvements in a permanent-magnet synchronous motor sensorless drive system are shown to provide additional validation of the method. © 1972-2012 IEEE.
| Titolo: | Self-Commissioning of Inverter Dead-Time Compensation by Multiple Linear Regression Based on a Physical Model |
| Autori: | PETRELLA, Roberto (Corresponding) |
| Data di pubblicazione: | 2015 |
| Rivista: | |
| Abstract: | Dead-time and switch voltage drops represent the most important sources of distortion of the (average) output voltage in pulsewidth modulation inverters. Their effect is a function of the parameters of the drive system and of the operating conditions and is often intolerable in many drives applications, thus requiring a proper compensation strategy. Many techniques are implemented in industrial drives and reported in the literature, even very recently. Differently from standard approaches, the proposed methodology is based on a detailed physical model of the power converter (including output capacitance), described by a small set of parameters. A novel self-commissioning identification procedure is introduced, adopting multiple linear regression. The technique is tested on a commercial drive in comparison with state-of-the-art techniques. In addition, back electromotive force estimation improvements in a permanent-magnet synchronous motor sensorless drive system are shown to provide additional validation of the method. © 1972-2012 IEEE. |
| Handle: | http://hdl.handle.net/11390/1071055 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 07112110 - versione pubblicata TransIA.pdf | Articolo principale | Versione Editoriale (PDF) | Non pubblico | Accesso ristretto Richiedi una copia |
| TransIA_FullPaper dead-time MLR_final.pdf | Articolo principale - versione post-print | Documento in Post-print |  | Open Access Visualizza/Apri |
http://hdl.handle.net/11390/1071055
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