Analysis of a Multilevel Dual Active Bridge (ML-DAB) DC-DC Converter Using Symmetric Modulation
| dc.contributor.author | Moonem, M. A. | |
| dc.contributor.author | Pechacek, C. L. | |
| dc.contributor.author | Hernandez, R. | |
| dc.contributor.author | Krishnaswami, Hariharan | |
| dc.date.accessioned | 2021-04-19T14:58:28Z | |
| dc.date.available | 2021-04-19T14:58:28Z | |
| dc.date.issued | 2015-04-20 | |
| dc.date.updated | 2021-04-19T14:58:28Z | |
| dc.description.abstract | Dual active bridge (DAB) converters have been popular in high voltage, low and medium power DC-DC applications, as well as an intermediate high frequency link in solid state transformers. In this paper, a multilevel DAB (ML-DAB) has been proposed in which two active bridges produce two-level (2L)-5L, 5L-2L and 3L-5L voltage waveforms across the high frequency transformer. The proposed ML-DAB has the advantage of being used in high step-up/down converters, which deal with higher voltages, as compared to conventional two-level DABs. A three-level neutral point diode clamped (NPC) topology has been used in the high voltage bridge, which enables the semiconductor switches to be operated within a higher voltage range without the need for cascaded bridges or multiple two-level DAB converters. A symmetric modulation scheme, based on the least number of angular parameters rather than the duty-ratio, has been proposed for a different combination of bridge voltages. This ML-DAB is also suitable for maximum power point tracking (MPPT) control in photovoltaic applications. Steady-state analysis of the converter with symmetric phase-shift modulation is presented and verified using simulation and hardware experiments. | |
| dc.description.department | Electrical and Computer Engineering | |
| dc.identifier | doi: 10.3390/electronics4020239 | |
| dc.identifier.citation | Electronics 4 (2): 239-260 (2015) | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12588/345 | |
| dc.rights | Attribution 4.0 United States | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | dual active bridge | |
| dc.subject | DC-DC multilevel converter | |
| dc.subject | neutral point clamped (NPC) | |
| dc.subject | symmetric modulation | |
| dc.subject | soft-switching | |
| dc.title | Analysis of a Multilevel Dual Active Bridge (ML-DAB) DC-DC Converter Using Symmetric Modulation | |
| dc.type | Article |