Hybrid Inverter and Control Strategy for Enabling the PV Generation Dispatch Using Extra-Low-Voltage Batteries

Meneghetti, Luiz Henrique; Carvalho, Edivan Laércio; Carati, Emerson Giovani; Denardin, Gustavo Weber; Costa, Jean Patric da; Stein, Carlos Marcelo de Oliveira; Cardoso, Rafael

doi:10.3390/en15207539

Cited by 11 publications

(3 citation statements)

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“…15 presents an i-AFE converter based on 2L-VSC in the PFC stage and a non-resonant dual-active bridge for high-frequency isolation. This topology is most widely used in industrial applications, including UPSs [113]- [115], on-board EV chargers [116]- [117], and interlinking converters for dc nanogrids [118]- [120].…”

Section: Classification Of Two-stage I-afe Convertersmentioning

confidence: 99%

“…An active rectifier draws the input current in two-stage converters and regulates the intermediate dc bus voltage, requiring two control loops (PFC and VR). The dc-dc isolated stage is used to control the output voltage and the power flow between dc buses [113]- [115]. One alternative to simplify the control strategy is to operate the dc-dc stage in an open-loop as a dc transformer [165], controlling the output voltage through the PFC stage [69].…”

Section: A Implementation Aspects Of I-afe Convertersmentioning

confidence: 99%

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

Carvalho

Blinov

Chub

et al. 2022

IEEE Open J. Power Electron.

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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.

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Section: Classification Of Two-stage I-afe Convertersmentioning

confidence: 99%

Section: A Implementation Aspects Of I-afe Convertersmentioning

confidence: 99%

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

Carvalho

Blinov

Chub

et al. 2022

IEEE Open J. Power Electron.

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“…In last few years, there has been an increase adoption of electric vehicles (EVs), and residential-scale renewable energy sources (RES), such as photovoltaics (PV) [1]- [2]. These RES are often combined with energy storage solutions to compensate for their intermittent energy production [3]. In addition, PVs, battery energy storage, and many modern appliances inherently operate on dc [1].…”

Section: Introductionmentioning

confidence: 99%

Three-Phase Bidirectional Isolated AC–DC Matrix-Converter With Full Soft-Switching Range

Carvalho,

Blinov,

Emiliani

et al. 2023

IEEE Access

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Galvanically isolated ac-dc converters are crucial for integrating distribution generation, energy storage, dc microgrids, and electric vehicles with ac distribution system. The typical industrial approach involves a two-stage setup (ac-dc/dc-dc) with a bulky dc link capacitor, and dual-active bridge converter (dc-dc) for isolation. However, this leads to increased power losses due to multiple power processing stages. To overcome this issue, this paper proposes a three-phase bidirectional isolated ac-dc matrix-converter, as a candidate solution. This topology employs a high-frequency link, eliminating the need for a traditional intermediate dc link found in a standard two-stage solution. As a main contribution, a quasi-resonant modulation strategy is introduced to allow all semiconductors to operate under softswitching for a wide operating range. A 3.5 kW prototype was built to compare proposed one with the twostage ac-dc converter. The experimental results show that the proposed converter achieved 96.5% efficiency at nominal power, outperforming the conventional converter, which reached 95.4% efficiency, mainly due to the extra power processing stage in the two-stage solution.INDEX TERMS Direct matrix type, isolated rectifier, matrix-converter, three-phase power factor correction (PFC) converter.

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Aspects of Energy Resilience of the Prosumers Based on Electricity and Heat Storage

Lăcătuş,

Sanduleac,

Ionescu

et al. 2023

2023 11th International Conference on ENERGY and ENVIRONMENT (CIEM)

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Hybrid Inverter and Control Strategy for Enabling the PV Generation Dispatch Using Extra-Low-Voltage Batteries

Cited by 11 publications

References 50 publications

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

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

Three-Phase Bidirectional Isolated AC–DC Matrix-Converter With Full Soft-Switching Range

Aspects of Energy Resilience of the Prosumers Based on Electricity and Heat Storage

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