dc.contributor.author | Zhou, Jiayu | |
dc.contributor.author | Ojo, Joseph Olorunfemi | |
dc.contributor.author | Tang, Fen | |
dc.contributor.author | Haruna, Josiah | |
dc.contributor.author | Loh, Poh Chiang | |
dc.date.accessioned | 2022-10-04T06:01:01Z | |
dc.date.available | 2022-10-04T06:01:01Z | |
dc.date.created | 2022-01-11T11:06:42Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | IEEE transactions on industry applications. 2021, 57 (5), 5117-5127. | en_US |
dc.identifier.issn | 0093-9994 | |
dc.identifier.uri | https://hdl.handle.net/11250/3023442 | |
dc.description.abstract | The three-level converters have an inherent problem of the neutral-point (NP) voltage unbalance due to the split dc-link capacitors. This NP voltage unbalance degrades the output voltage/current waveform quality. A carrier-based discontinuous pulsewidth modulation (CB-DPWM) with NP voltage balancing strategy-that involves the injection of calculated zero-sequence voltages to the original modulation signal-is implemented for the three-level T-type converter in this article. The zero-sequence voltages are determined from the space-vector synthesis of the converter output voltages. This method allows the determination of the zero-sequence voltages with few judgment conditions. Unlike the space-vector-based discontinuous pulse width modulation, the CB-DPWM is easier to realize in practical applications. Moreover, the proposed CB-DPWM can also be directly used in parallel systems, which can suppress NP voltage ripples and circulating currents simultaneously by a coordinated strategy. The efficacy of the proposed method in balancing the NP voltage in single and parallel systems is demonstrated by simulations and experiments. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | en_US |
dc.title | A Carrier-Based Discontinuous PWM for Single and Parallel Three-Level T-Type Converters with Neutral-Point Potential Balancing | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | acceptedVersion | en_US |
dc.rights.holder | © IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | en_US |
dc.source.pagenumber | 5117-5127 | en_US |
dc.source.volume | 57 | en_US |
dc.source.journal | IEEE transactions on industry applications | en_US |
dc.source.issue | 5 | en_US |
dc.identifier.doi | 10.1109/TIA.2021.3093500 | |
dc.identifier.cristin | 1978101 | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |