Exploitation of additional degrees of freedom of multiphase drives in low-frequency operation of modular multilevel converters
| Author | Daoud M. |
| Author | Elserougi A. |
| Author | Abdel-Khalik A. |
| Author | Massoud A. |
| Author | Bojoi R. |
| Author | Ahmed S. |
| Available date | 2020-03-18T10:47:15Z |
| Publication Date | 2019 |
| Publication Name | 2019 16th Conference on Electrical Machines, Drives and Power Systems, ELMA 2019 - Proceedings |
| Resource | Scopus |
| Abstract | MMC encounters serious limitations in the zero and low-frequency operation of variable-speed motor drives. In MMC, the voltage ripples of SubModule (SM) capacitor is inversely proportional to the phase current frequency. This paper proposes a new approach to solve the zero-/low- frequency operation technical issue of MMC-based drive systems. The proposed approach utilizes the additional degrees of freedom of multiphase machines to inject secondary-plane current components with certain magnitude and frequency in the load current to enable smooth operation during that interval. A simulation model of a three-level five- phase MMC-based Induction Machine (IM) drive system has been built using MATLAB/Simulink. In this paper, the adopted control strategy is explained and the simulation results are presented. |
| Sponsor | This publication was made possible by GSRA grant 2-1-0609-14027 from the Qatar National Research Fund (a member of Qatar Foundation). |
| Language | en |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Subject | Additional degrees of freedom Induction machine X-y current injection Zero-/low- frequency operation |
| Type | Conference |
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Computer Science & Engineering [2427 items ]