Bidirectional Interlink Converter for Bipolar DC Microgrids

Carvalho, Edivan Laércio; Meneghetti, Luiz Henrique; Bellinaso, Lucas Vizzotto; Cardoso, Rafael; Michels, Leandro

doi:10.1109/isgt-la.2019.8895334

Cited by 11 publications

(5 citation statements)

References 17 publications

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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%

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%

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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“…Entretanto, [4] e [7] trazem uma separação simples porém efetiva para os termos microrredes e nanorredes: enquanto microrredes abrangem várias instalações elétricas ou edificações [8]- [11], nanorredes são definidas como um único domínio de tensão, tarifação e controle [12]. Isso significa que, enquanto microrredes são desenvolvidas, principalmente, para a interação com a rede elétrica, nanorredes estão relacionadas a propriedade individual do cliente [12]- [14]. Apesar de que uma interface com a rede pública ainda é necessária -devido a questões de controle e suporte de potência [14] -, esta separação comumente relaciona as nanorredes ao conceito de edifícios autossuficientes em energia (Net-Zero Energy Building) [12], enquanto as microrredes estão relacionadas a organização do sistema de potência [8]- [11].…”

Section: Introductionunclassified

“…Isso significa que, enquanto microrredes são desenvolvidas, principalmente, para a interação com a rede elétrica, nanorredes estão relacionadas a propriedade individual do cliente [12]- [14]. Apesar de que uma interface com a rede pública ainda é necessária -devido a questões de controle e suporte de potência [14] -, esta separação comumente relaciona as nanorredes ao conceito de edifícios autossuficientes em energia (Net-Zero Energy Building) [12], enquanto as microrredes estão relacionadas a organização do sistema de potência [8]- [11].…”

Section: Introductionunclassified

Gerenciamento de Potência Baseado em Vetores de Resposta ao Preço para o Controle de Nanorredes

Carvalho¹,

Bellinaso²,

Felipe³

et al. 2021

Eletrônica de Potência

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Resumo-Este artigo propõe uma estrutura de controle baseada em vetores de resposta ao preço para o gerenciamento de potência em nanorredes. A principal contribuição é aplicar a teoria de preços associada a controladores droop. Nesta proposta o preço trata-se de uma variável de controle utilizada para a automação do sistema. Isso permite definir exatamente quando um elemento deve ser ligado, ou desligado em resposta ao preço. Portanto, evita-se o uso de estratégias de compartilhamento de potência durante todo o tempo, melhorando a eficiência do gerenciador de potência. Para avaliar a proposta, o Typhoon-HIL 602+ foi utilizado para obter resultados de simulação em tempo real. Os resultados incluem testes de inicialização do sistema, e de variação de carga. Adicionalmente, resultados experimentais são obtidos de um setup construído em laboratório. A nanorrede avaliada inclui um gerador fotovoltaico, banco de baterias, cargas c.c. gerenciáveis, e um conversor c.c.-c.a. para a interface com a rede elétrica. Palavras-Chave -controle droop, geração distribuída, gerenciamento de potência, nanorredes.

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“…In general, these topologies can be classified into three categories, that is, interlink converters (ICs), internal converters (INCs) and threeport multidirectional DC-DC converters (TMCs) [14]. In [15,16], isolated ICs based on flyback and three-port dual-activebridge (DAB) are introduced. Isolated converters are used for high voltage DC microgrid applications where high voltage gain ratios between voltages of battery and terminals are required [14,17,18].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, in [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30], various isolate and non-isolate converters have been proposed by different authors. In general, these topologies can be classified into three categories, that is, interlink converters (ICs), internal converters (INCs) and threeport multidirectional DC-DC converters (TMCs) [14].…”

Section: Introductionmentioning

confidence: 99%

Voltage unbalances mitigation in bipolar DC microgrids using a novel three‐port multidirectional buck–boost converter

Ahmadi

2020

IET Power Electronics

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This study proposes a new three-port multidirectional DC-DC converter (TMC) to integrate an energy storage system (ESS) or main grid to a bipolar DC microgrid (BDCMG). This converter provides a voltage balancing function and controls the input and output power of the BDCMG so that during overload conditions injects power to the BDCMG and in low-load conditions saves the available power to an ESS or transfers to the main grid. Given this integration of activities, the total number of converters in the BDCMG can be decreased. This feature enables that the converter can be used in portable systems where the overall efficiency and weight of the system are important. In the study, the performance of the proposed converter is analysed. Simulation studies are performed and a BDCMG laboratory setup is implemented in order to evaluate the performance of the proposed TMC. 1How to cite this article: Ahmadi T. Voltage unbalances mitigation in bipolar DC microgrids using a novel three-port multidirectional buck-boost converter.

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Bidirectional Interlink Converter for Bipolar DC Microgrids

Cited by 11 publications

References 17 publications

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

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

Gerenciamento de Potência Baseado em Vetores de Resposta ao Preço para o Controle de Nanorredes

Voltage unbalances mitigation in bipolar DC microgrids using a novel three‐port multidirectional buck–boost converter

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