Controle E Redução Das Correntes Harmônicas De Um Sistema De Geração Fotovoltaico Interligado À Rede Elétrica Sem Filtros Passivos

Almeida, Pedro M. de; Ferreira, André Augusto; Braga, Henrique A. C.; Ribeiro, Paulo F.; Barbosa, Pedro G.

doi:10.18618/rep.2013.4.11491160

Cited by 5 publications

(1 citation statement)

References 29 publications

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“…In Figures 6 and 7, the blue dotted lines contain the battery model, the red dotted lines indicate the bidirectional current DC-DC converter, and the green dotted lines indicate the DC-AC converter. It is important to emphasize that the parameter values were obtained through projects focused on the development and construction of electric vehicles [23,27].…”

Section: Electric Vehicle Modelmentioning

confidence: 99%

Analysis of voltage control using V2G technology to support low voltage distribution networks

Mattos,

Archetti,

Bitencourt

et al. 2023

IET Generation Trans & Dist

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The decarbonization of the power generation and transport sector encourage the analysis of connection of distributed energy resources (DER), such as electric vehicles (EVs), to the electrical system, as well as the evaluation of their impact on smart cities. A better understanding of the negative impacts on the power systems will lead to propose mitigation measures and eventually revolutionize the way distributed generation works. This paper aims at modelling and evaluating the impact of EVs on a real distribution network. The energy system chosen operates at 60 Hz, 34.5 kV (medium voltage) and 0.208 kV (low voltage) and it is simulated using PSCAD/EMTDC. To reproduce realistic user consumption profiles, dynamic load profiles based on EV owners behaviour have been simulated. The vehicle‐to‐grid (V2G) technology is modelled to mitigate the impacts of high penetration of EVs by supporting the network from undervoltage. The results show the importance of active management in modern power systems, especially considering the increase in DER penetration expected for the coming years. This work shows the benefits of implementing V2G technology while highlighting the challenges involved in a real case.

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Section: Electric Vehicle Modelmentioning

confidence: 99%

Analysis of voltage control using V2G technology to support low voltage distribution networks

Mattos,

Archetti,

Bitencourt

et al. 2023

IET Generation Trans & Dist

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Grid-tie Three-phase Inverter With Active and Reactive Power Flow Control Capability

Sampaio¹,

Brito²,

Melo³

et al. 2014

Eletrônica de Potência

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This paper proposes a methodology for the active and reactive power flow control, applied to a low voltage grid-tie three-phase power inverter. The control technique is designed by means of feedback linearization and the pole placement is obtained using Linear Matrix Inequalities (LMIs) together with D-stability concepts. Through multi-loop control, the power loop uses adapted active and reactive power transfer expressions, in order to obtain the magnitude of the voltage and the power transfer angle to control the power flow between the distributed generation (DG) and the utility grid. The state-feedback linearization technique is applied at the whole control system in order to minimize the nonlinearities of the system, improving the controller's performance and mitigating potential disturbances. The methodology main idea is to obtain the best controllers with the lowest gains as possible placing the poles in the left-half s-plane region specified during the design procedure, resulting in fast responses with reduced oscillations. Demonstrating the feasibility of the proposal a 3 kVA three-phase prototype was experimentally implemented. Furthermore, experimental results demonstrate anti-islanding detection and protection against over/under voltage and frequency deviations.

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Estratégia de Saturação Dinâmica da Capacidade de Conversores Multifuncionais Conectados à Rede Elétrica

Bonaldo¹,

Paredes²,

Pomílio³

2015

Eletrônica de Potência

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Resumo -Este artigo propõe uma estratégia de controle que permite a utilização plena da capacidade de conversores multifuncionais conectados à rede elétrica. A técnica proposta é baseada na estimação dinâmica de um coeficiente de compensação ( ) para melhoria do fator de potência da rede no ponto de acoplamento da unidade consumidora, incluindo uma fonte de energia com o respectivo conversor e a carga local. Assim, o sinal de referência é proporcional a , que ajusta dinamicamente a intensidade da compensação conforme a capacidade de potência remanescente do conversor. Para demostrar a eficácia da estratégia proposta, resultados experimentais e de simulação são obtidos considerando um cenário real, no qual tanto a carga quanto a geração são intermitentes. Palavras-Chave -Conversores Multifuncionais, FiltroAbstract -This paper proposes a control strategy that allows the exploitation of the full capacity of the multifunctional grid-tied inverters. The strategy is based on the dynamic estimation of a compensation coefficient ( to improve the power factor at the point of common coupling. Thus, the reference signal is proportional to , which dynamically adjusts the amount of compensation depending on the remaining capacity of the power converter. To demonstrate the effectiveness of the proposed strategy, experimental results and simulation are obtained considering a real case, in which both the load and generation are intermittent.

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Controle E Redução Das Correntes Harmônicas De Um Sistema De Geração Fotovoltaico Interligado À Rede Elétrica Sem Filtros Passivos

Cited by 5 publications

References 29 publications

Analysis of voltage control using V2G technology to support low voltage distribution networks

Analysis of voltage control using V2G technology to support low voltage distribution networks

Grid-tie Three-phase Inverter With Active and Reactive Power Flow Control Capability

Estratégia de Saturação Dinâmica da Capacidade de Conversores Multifuncionais Conectados à Rede Elétrica

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