Contribuição ao Estudo dos Principais Algoritmos de Extração da Máxima Potência dos Painéis Fotovoltaicos

Brito, Moacyr A. G. de; Sampaio, Leonardo Poltronieri; Melo, Guilherme de Azevedo e; Canesin, Carlos A.

doi:10.18618/rep.2012.3.592600

Cited by 13 publications

(2 citation statements)

References 37 publications

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“…In order to extract the maximum power from the PV array, some MPPT techniques were proposed [11], [12]. However, when the PV array is under Partial Shading Condition (PSC), the MPPT can be trapped in some local maximum power peak (LMPP), decreasing system efficiency.…”

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of a Multifunctional System Single-Stage Pv-Shunt Active Filter Under Partial Shading Conditions

Costa¹,

Castro²,

Machado³

et al. 2020

Eletrônica de Potência

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Distributed solar photovoltaic (PV) generation is becoming more popular. Similarly, the number of electronic loads has increased along with the need to improve power quality. The PV-Shunt Active Filter (PV-SAF) is a system capable of injecting the PV power generated in the electrical grid and eliminating harmonics of current and reactive power of the local installation load. In the single-stage topology, the PV array is connected directly to the SAF DC bus, without the need for an intermediate DC-DC converter. In this paper, a three-phase single-stage PV-SAF system is evaluated in partial shading conditions. For this,

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Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of a Multifunctional System Single-Stage Pv-Shunt Active Filter Under Partial Shading Conditions

Costa¹,

Castro²,

Machado³

et al. 2020

Eletrônica de Potência

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“…A maioria dos trabalhos tem como foco a implementação de algoritmos que utilizam a tensão como variável de rastreamento, uma vez que esta apresenta uma característica mais bem comportada com a variação das condições ambientais em comparação com a corrente dos módulos (Bellinaso et al, 2019). No entanto, a escolha da corrente é mais intuitiva considerando as variações de demanda da carga, como discutido em (Aureliano Gomes de Brito et al, 2012;de Brito et al, 2011), onde são apresentados diversos algoritmos de MPPT utilizando a corrente como variável de controle.…”

Section: Introductionunclassified

Implementação e avaliação da eficiência de um algorítmo MPPT P&O baseado em corrente para geração fotovoltaica

Gonçalves

Silva

Gonçalves

et al. 2019

Anais Do 14º Simpósio Brasileiro De Automação Inteligente

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In recent years there has been a significant increasing of distributed generation integration to the electrical mains, where it is possible to highlight photovoltaic systems. One of the key points in the implementation of these systems is the elaboration and tuning of the maximum power tracking (MPPT) algorithm. The present paper evaluates the impacts of the MPPT algorithm tuning, such as the choice of the increment/decrement step and the update time of the tracking variables, over the efficiency of the energy extraction process. For this, a P&O (disturb and observe) algorithm using the photovoltaic panels current as a control variable is implemented in a 5.1(kW) system. Resumo: Nos últimos anos houve um significativo aumento na integração dos sistemas de geração distribuída a rede elétrica, onde pode-se destacar os sistemas fotovoltaicos. Um dos pontos primordiais na implementação destes sistemas é a elaboração e sintonia do algoritmo de rastreamento de máxima potência (MPPT). O presente trabalho avalia os impactos da sintonia do algoritmo MPPT, como a escolha do passo e do tempo de atualização das variáveis de rastreamento, sobre a eficiência do processo de extração de energia. Para isso, um algoritmo P&O (perturbe e observe) utilizando a corrente como variável de controle é implementado em um sistema de 5,1(kW).

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Analysis Of Mppt Techniques Applied To The Dcm Multiphase Boost Converter For The Mitigation Of Partial Shading In Pv Arrays

Jr.¹,

Tofoli²,

Braga³

et al. 2013

Eletrônica de Potência

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This work presents the study and implementation of a multi-input dc-dc interleaved boost converter used in solar photovoltaic systems. Initially, a comparative analysis between two popular techniques used to track the maximum power point is performed to demonstrate whether controlling the PV array voltage or current has significant impact on the solar energy conversion into electricity. Due to their popularity, perturb and observe and incremental conductance are chosen and evaluated through simulation tests. Considering that the results obtained with both techniques controlling either the voltage or the current of the modules are similar, incremental conductance is implemented in and dc-dc interleaved boost converter operating in discontinuous current mode. Thus, it is possible to mitigate the partial shading effects on photovoltaic arrays, also reducing size of passive elements and providing fast transient response. Experimental results on a PV system using a digital signal processor are presented to validate the proposed approach.

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Contribuição ao Estudo dos Principais Algoritmos de Extração da Máxima Potência dos Painéis Fotovoltaicos

Cited by 13 publications

References 37 publications

Experimental Evaluation of a Multifunctional System Single-Stage Pv-Shunt Active Filter Under Partial Shading Conditions

Experimental Evaluation of a Multifunctional System Single-Stage Pv-Shunt Active Filter Under Partial Shading Conditions

Implementação e avaliação da eficiência de um algorítmo MPPT P&O baseado em corrente para geração fotovoltaica

Analysis Of Mppt Techniques Applied To The Dcm Multiphase Boost Converter For The Mitigation Of Partial Shading In Pv Arrays

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