Single-phase current-source-boost inverter for renewable energy sources

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

doi:10.1109/isie.2011.5984201

Cited by 18 publications

(11 citation statements)

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“…With this purpose, the PI and PID controllers are widely employed to control the power electronics converters [19,20], which are designed from the linearized model of the converters obtained by means of small-signal analysis for the operational quiescent point. Sometimes, the converter can operate out of the specified boundary, which can produce undesirable effects and at worst, the system can operate out of the stable region [21,22].…”

Section: Introductionmentioning

confidence: 99%

Grid-tie three-phase inverter with active power injection and reactive power compensation

et al. 2016

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a b s t r a c tThis paper proposes a methodology for the active and reactive power flow control, applied to a grid-tie three-phase power inverter, considering local and/or regionalized power flow control necessity in the forthcoming distributed generation scenario. The controllers are designed by means of robust pole placement technique, which is determined using the Linear Matrix Inequalities with D-stability criteria. The linearized models used in the control design are obtained by means of feedback linearization, aiming to reduce system nonlinearities, improve the controller's performance and mitigate potential disturbances. Through multi-loop control, the power loop uses active and reactive power transfer adapted expressions to obtain the magnitude of the voltage and power transfer angle to control the power flow between the distributed generation and the utility grid. 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, resulting in fast responses with reduced oscillations. In order to demonstrate the feasibility of the proposal a 3 kVA three-phase prototype was implemented and a comparison with conventional controller is performed to demonstrate the proposed methodology performance. In addition, anti-islanding detection and protection against over/under voltage and frequency deviations are demonstrated through experimental results.

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Section: Introductionmentioning

confidence: 99%

Grid-tie three-phase inverter with active power injection and reactive power compensation

et al. 2016

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“…Para este processo de rastreamento, os controladores do tipo PI e PID são amplamente utilizados, sendo que estes controladores satisfazem os critérios de projeto para a maioria dos problemas de engenharia [6].…”

Section: Introductionunclassified

Inversor Monofásico para Geração Distribuída Conectada à Rede Elétrica, com Injeção de Potência Ativa e Capacidade de Compensação Reativa

Sampaio¹,

Brito²,

Melo³

et al. 2014

Eletrônica de Potência

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Resumo -Este trabalho propõe uma metodologia de controle de injeção de potência ativa, incluindo a funcionalidade de compensação de reativos, para um inversor monofásico em ponte completa com filtro LCL (FB-VSI-LCL), aplicado à geração distribuída conectada com a rede elétrica em corrente alternada. Propõem-se o uso da linearização pela realimentação dos estados, uma técnica de controle não-linear, em conjunto com as desigualdades matriciais lineares (LMI) e critérios da Destabilidade, com o objetivo de projetar os controladores para o sistema. O controle do fluxo de potência é realizado a partir do controle do inversor como fonte de corrente, e a partir das equações características P-f e Q-V determina-se o sinal de referência para a malha de tensão. Posteriormente, a malha de tensão gera o sinal de referência para a malha de corrente, sendo assim, o controle é realizado por um sistema multimalhas. Finalmente, os principais resultados experimentais são apresentados, considerando-se um protótipo com potência nominal de 1000VA, com a finalidade de demonstrar a funcionalidade do controle proposto. P-f and Q-V the voltage reference signal is determined to the voltage loop. Furthermore, the voltage loop generates the reference signal to the current loop control, thus, the control is performed by a multi-loop control system. Finally, the main experimental results are presented, considering a 1000VA inverter prototype, with the purpose to demonstrate the feasibility of the proposed control. Palavras-Chave -

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“…The linear model applied in the control system is obtained by means of small signal analyses, which is linearized for the operational quiescent point. The most known and used compensator, to operate in the linear model, is the Proportional-Integral-Derivative Controller (PID) [5]. Sometimes, the converter can operate out of this boundary, which can produce undesirable results and for the worst case, the system can operate out of the stable region.…”

Section: Introductionmentioning

confidence: 99%

Grid-tie three-phase inverter with active and reactive power flow control capability

Sampaio

Brito

Melo

et al. 2013

2013 Brazilian Power Electronics Conference

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This paper proposes a methodology for the active and reactive power flow control, applied to threephase inverter operating in grid-connected mode at low AC voltage. The converter's control technique is based on Linear Matrix Inequalities -LMI together with Dstability criteria and state-feedback linearization. Through multi-loop control, the power loop uses an adapted active and reactive power transfer expressions, in order to obtain the magnitude voltage and power transfer angle to control the power flow between the distributed generation and the utility/grid. The multiloop control uses the technique of state-feedback linearization in order to minimize the system nonlinearities, improving the controller's performance and mitigating potential system disturbances. Moreover, the purpose of the methodology is to obtain the best controllers with the lowest gains placing the poles in the left-half s-plane region specified during the design stage, resulting fast responses with reduced oscillations. In order to demonstrate the feasibility of the proposed control a 3000VA three-phase prototype was experimentally implemented. Furthermore, experimental results demonstrate anti-islanding detection and protection against over/under voltage and frequency.

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Single-phase current-source-boost inverter for renewable energy sources

Cited by 18 publications

References 11 publications

Grid-tie three-phase inverter with active power injection and reactive power compensation

Grid-tie three-phase inverter with active power injection and reactive power compensation

Inversor Monofásico para Geração Distribuída Conectada à Rede Elétrica, com Injeção de Potência Ativa e Capacidade de Compensação Reativa

Grid-tie three-phase inverter with active and reactive power flow control capability

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