A Duty-factor Direct Torque Control Approach for Elimination of Common Mode Voltage Spikes in a Five-Phase Induction Motor Drive
| Autor: | GAURI, A., VINOD, B. R., SREENI, K. G., SHINY, G. |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Advances in Electrical and Computer Engineering, Vol 24, Iss 4, Pp 83-92 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1582-7445 1844-7600 |
| DOI: | 10.4316/AECE.2024.04009 |
| Popis: | Common mode voltage (CMV) is a major problem in motor drives that causes premature motor failure. In inverter-fed motor drives the CMV due to zero vectors (ZVs) is half the DC link voltage which shows the importance of exclusion of ZVs from the control. Even if the active vectors alone are used for control, there is a chance of ZV generation during the dead time of inverter leading to undesired spikes in CMV. In this work, a method based on Direct Torque Control (DTC) using AVs alone is implemented on a five-phase induction motor (FPIM) fed using a two-level five-phase inverter (TL-FPI). The inverter switching vectors before and after dead time are analyzed for ZV generation during dead time and are modified accordingly. The adverse effect on drive performance due to the vector modification as well as the limitations of conventional DTC is overcome by adjusting the duty factor (magnitude) of the final vector using a proportional integral (PI) controller. Experimental verifications are done to validate the performance of the proposed scheme. |
| Databáze: | Directory of Open Access Journals |
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