Publicación:
Modulation and Control Strategy for an Isolated and Bidirectional Two-Stage DC-AC converter with a high ripple on the DC-Link to interface Battery with the Single-Phase Grid

dc.contributor.author Pantaleon E. es_PE
dc.contributor.author Rosas D.S.Y. es_PE
dc.contributor.author Espinoza R. es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2021
dc.description This work was financed by CONCYTEC-FONDECYT within the call for projects E041-01 [Contract Number 176-2018-BM-FT].
dc.description.abstract This paper analyzes the modulation and the control strategy for an isolated and bidirectional two-stage DC-AC converter to interface batteries with the single-phase grid. The converter is composed of a Dual-Active-Bridge Series-Resonant (DABSR) DC-DC converter cascaded with a Voltage Source Inverter (VSI). Both converters are linked by a film capacitor. The time-variant single-phase power is decoupled on the DC-link, which allows a high ripple voltage. In the VSI control, a Notch Filter (NF) is used to filter the low-frequency ripple influence in the grid power transfer. Two different modulations are analyzed to power decoupling in the DABSR DC-DC converter: (1) 50% fixed duty ratio (FDR) with time-variant phase-shift (TVPS) modulation and (2) time-variant duty ratio (TVDR) with fixed phase-shift modulation to power transfer. The analysis for different capacitance values is made considering the ripple on the DC-Link and the THD in the grid current. The results show that 50% FDR and TVPS modulation allows ZVS mode and minimum high-frequency current. However, TVDR allows a better power decoupling in the DC current. The control strategy and modulation are validated by simulation. © 2021 IEEE.
dc.description.sponsorship Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
dc.identifier.doi https://doi.org/10.1109/PEDG51384.2021.9494276
dc.identifier.scopus 2-s2.0-85112385527
dc.identifier.uri https://hdl.handle.net/20.500.12390/3027
dc.language.iso eng
dc.publisher Institute of Electrical and Electronics Engineers Inc.
dc.relation.ispartof Proceedings of the 2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2021
dc.rights info:eu-repo/semantics/openAccess
dc.subject VSI
dc.subject DABSR converter es_PE
dc.subject Series Resonant Circuit (SCR) es_PE
dc.subject TVDR modulation es_PE
dc.subject TVPS modulation es_PE
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#2.02.01
dc.title Modulation and Control Strategy for an Isolated and Bidirectional Two-Stage DC-AC converter with a high ripple on the DC-Link to interface Battery with the Single-Phase Grid
dc.type info:eu-repo/semantics/conferenceObject
dspace.entity.type Publication
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