A Nine-Bridge Single-Stage Isolated Three-Phase Bidirectional AC/DC Converter

Gu, Ling; Chang, Song

doi:10.1109/iecon43393.2020.9254536

Cited by 3 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reference configuration for two-level q-SS converters is based on 2L-VSC as the PFC, and nonresonant DAB for the isolated dc-dc stagesuch as the two-stage solution presented in Fig. 15 [122]. The main difference between two-stage and q-SS topologies is the absence of a decoupling dc bus.…”

Section: Two-level Q-ss I-afe Convertersmentioning

confidence: 99%

“…Hence, the high-frequency dynamics of the PFC and dc-dc stages are not decoupled. Therefore, the PFC and isolated stage must be grouped and analyzed for the implementation of a cooperative modulation strategy [122]. As a result, the modulation is typically more complex for the q-SS.…”

Section: Two-level Q-ss I-afe Convertersmentioning

confidence: 99%

“…Reference [122] classifies these topologies according to the number of switch bridges used in each power processing stage. For example, a three-phase 2L-VSC includes one leg per phase, while a single-phase dual-active bridge needs four more to handle the bidirectional power flow.…”

Section: Two-level Q-ss I-afe Convertersmentioning

confidence: 99%

“…In total, this results in a seven-leg q-SS converter [38], [123]. In terms of practical developments, even though reference [122] proposes three-phase solutions for the ac side, the single-phase six-leg q-SS converter is the most common and well-developed solution that has experimental validation for many applications [38], [124]- [125]. For i-AFE converters, the current developments are targeting mostly multilevel T-type converters.…”

Section: Two-level Q-ss I-afe Convertersmentioning

confidence: 99%

“…The connection depends on the application objectiveseither boost or buck the input voltage. The main advantage of three-phase transformers is that the effective frequency of the transformer voltage is higher than the switching frequency, resulting in the transformer size reduction [122].…”

Section: T-type Quasi-single-stage I-afe Convertersmentioning

confidence: 99%

See 4 more Smart Citations

Grid Integration of DC Buildings: Standards, Requirements and Power Converter Topologies

Carvalho

Blinov

Chub

et al. 2022

IEEE Open J. Power Electron.

View full text Add to dashboard Cite

Residential dc microgrids and nanogrids are the emerging technology that is aimed to promote the transition to energy-efficient buildings and provide simple, highly flexible integration of renewables, storages, and loads. At the same time, the mass acceptance of dc buildings is slowed down by the relative immaturity of the dc technology, lack of standardization and general awareness about its potential. Additional efforts from multiple directions are necessary to promote this technology and increase its market attractiveness. In the near-term, it is highly likely that the dc buildings will be connected to the conventional ac distribution grid by a front-end ac-dc converter that provides all the necessary protection and desired functionality. At the same time, the corresponding requirements for this converter have not been yet consolidated. To address this, present paper focuses on various aspects of the integration of dc buildings and includes analysis of related standards, directives, operational and compatibility requirements as well as classification of voltage levels. In addition, power converter configurations and modulation methods are analyzed and compared. A classification of topologies that can provide the required functionality for the This article has been accepted for publication in IEEE Open Journal of Power Electronics.

show abstract

Section: Two-level Q-ss I-afe Convertersmentioning

confidence: 99%

Section: Two-level Q-ss I-afe Convertersmentioning

confidence: 99%

Section: Two-level Q-ss I-afe Convertersmentioning

confidence: 99%