Steady State Analysis of a Medium/Low Voltage Distribution Grid Behavior with  PV System Penetration

Piccini, Anderson Rodrigo; Tamashiro, Márcio Augusto; Guimarães, Geraldo Caixeta; Rodrigues, André Roger; Barbosa, C. S.

doi:10.24084/repqj12.391

Cited by 2 publications

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“…Further details on power grid used for the simulations can be found at [31][32][33]. In fact, it is a real power grid, located in the 1106 South block of Palmas, capital of the state of Tocantins, Brazil.…”

Section: Distributed Power Gridmentioning

confidence: 99%

Implementation of a Photovoltaic Inverter with Modified Automatic Voltage Regulator Control Designed to Mitigate Momentary Voltage Dip

et al. 2021

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The main objective of this research is to propose an active and reactive power injection control in order to mitigate voltage sags. The proposed control strategy works in conjunction with a modified version of an automatic voltage regulator (AVR), where it will act on the active and reactive powers injected by the inverter to reduce the effects of voltage sags. In this way, the control will avoid possible shutdowns and damage to the equipment connected to the grid. The voltage improvement can be perceived for consumers connected to the power system. Modifications in AVR model and parameters are performed to speed up its performance, thus identifying the short-duration voltage variations (SDVV) and, consequently, the control acts to alter the powers, decreasing the active power injection and increasing the reactive power based on inverter capacity during the momentary voltage dip (MVD). Finally, when the fault is cleared, all values return to the pre-fault condition, so that the inverter only operates with active power. A 75 kW three-phase grid-connected photovoltaic system (GCPVS) equipped with the proposed control was inserted in a distribution grid of the city of Palmas, state of Tocantins, Brazil, and all of the computer simulations were performed on the Matlab/Simulink®.

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Section: Distributed Power Gridmentioning

confidence: 99%

Implementation of a Photovoltaic Inverter with Modified Automatic Voltage Regulator Control Designed to Mitigate Momentary Voltage Dip

et al. 2021

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“…Mais detalhes sobre a rede elétrica de distribuição utilizada para as simulações podem ser encontrados em [34]- [37]. Para a pesquisa foi utilizada uma rede elétrica real, localizada na quadra 1106 Sul de Palmas, capital do estado do Tocantins, região norte do Brasil.…”

Section: Rede Elétrica De Distribuiiçãounclassified

Sistema Fotovoltaico Conectado à Rede Utilizando Regulador Automático de Tensão com Controle Modificado Projetado para Mitigar o Afundamento Momentâneo de Tensão

Piccini¹,

Guimarães²,

Souza³

et al. 2021

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em uma versão modificada, no qual atuará ed Control Designed to Mitigate Momentary Voltage Dips sobre as potências ativa e reativa injetada pelo inversor ed Control Designed to Mitigate Momentary Voltage Dips sobre as potências ativa e reativa injetada pelo inversor ed Control Designed to Mitigate Momentary Voltage Dips para reduzir os efeitos do afundamento de tensão. Desta forma, o controle evitará possíveis desligamentos e danos aos equipamentos conectados na rede cuja melhoria é percebida nas tensões para os consumidores conectados a ela. Os parâmetros e modificações do AVR serão alterados para uma dinâmica mais rápida, identificando assim as Variações de Tensão de Curta Duração (VTCD) e

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Steady State Analysis of a Medium/Low Voltage Distribution Grid Behavior with PV System Penetration

Cited by 2 publications

References 3 publications

Implementation of a Photovoltaic Inverter with Modified Automatic Voltage Regulator Control Designed to Mitigate Momentary Voltage Dip

Implementation of a Photovoltaic Inverter with Modified Automatic Voltage Regulator Control Designed to Mitigate Momentary Voltage Dip

Sistema Fotovoltaico Conectado à Rede Utilizando Regulador Automático de Tensão com Controle Modificado Projetado para Mitigar o Afundamento Momentâneo de Tensão

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