Microgrid units in the islanded operation mode implemented in the dSPACE DS1103

Souza, Wanderson Ferreira de; Severo-Mendes, M. A.; Lopes, Luiz A. C.

doi:10.1109/cobep.2013.6785239

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…The control is performed per-phase for the investigation of the MU with an unbalanced load. In [13,17]w a s done the small-signal analysis. Other authors preferred to use α-β [4,13]o rd-q [12,18], for the three-phase system.…”

Section: Control Systemmentioning

confidence: 99%

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Power sharing control strategies for a three‐phase microgrid in different operating condition with droop control and damping factor investigation

Souza¹,

Severo-Mendes²,

Lopes³

2015

IET Renewable Power Generation

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In this study, a microgrid with two voltage source inverters (VSIs), operating in islanded or grid-connected mode is analysed. The active power control by droop coefficients and reference frequencies is demonstrated. In addition, the inductive and resistive droop strategies are compared by considering the complex line impedance. By measuring the line impedance in the prototype, it was found that, even for the low-voltage microgrid, the line impedance was not predominantly resistive, but complex. For this line impedance condition, an investigation to determine the best droop control law considering the partial derivatives. Observing the partial derivatives and the experimental results obtained it is demonstrated that inductive droop control is better to control the active power for complex line impedance. For a scenario with resistive unbalanced loads and different power sharing between the inverters, the proposed control, implemented in the a-b-c reference frame, was validated. A novel absolute damping factor is developed to improve the transient response and reduce the reactive power flow. The VSIs are connected to the grid without transformers to reduce the connection costs. Simulation and experimental results are presented to confirm the improvements achieved using the implemented control method.

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Section: Control Systemmentioning

confidence: 99%

“…This block uses PI controllers in cascade: an outer loop for voltage and inner loop for current [13,16]. The control loops were implemented as described in the previous report [17]. In this study, a feed-forward action was added to reduce the effort of the control loops.…”

Section: Control Systemmentioning

confidence: 99%

Power sharing control strategies for a three‐phase microgrid in different operating condition with droop control and damping factor investigation

Souza¹,

Severo-Mendes²,

Lopes³

2015

IET Renewable Power Generation

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“…Antes de analisar a função de transferência dos controladoresé necessário determinar o modelo da planta do sistema [18]. Para isto, considere o circuito mostrado na Figura 3.…”

Section: B Modelo Das Malhas De Tensão E Correnteunclassified

Proteção Direta de Sobrecorrente no Controle de uma Microgrid Trifásica

Souza¹,

Mendes²,

Lopes³

2015

Eletrônica de Potência

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Resumo -A demanda por energia mais limpa e os avanços nos procedimentos de conexão de unidades de microgeraçãoà rede de distribuição contribuem para maior participação dessas no sistema elétrico. Por isto, este artigo propõe um novo esquema de limitação de corrente por meio de uma malha auxiliar de controle, que permitirá limitar a corrente nas unidades sem as desconectar e também alterar a divisão de carga estabelecida pelos parâmetros de controle. Especificamente para o método de controle utilizado, a proteção de sobrecorrente limita a corrente fornecida, uma vez que a malha interna de controle de corrente não a faz. A malha de proteção proposta não pretende substituir os conhecidos limitadores de corrente de falha.Os resultados de simulação e experimentais de uma microrrede com duas unidades trifásicas de microgeração, trabalhando no modo ilhado ou conectado, demonstram a efetividade do método.

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“…When working with real-time microgrid implementations with two or more power converters, dSPACE control platforms may have limitations. Nevertheless, in the work developed by [ 30 ], a single dSPACE ds1103 control platform was used, to control two power converters: here, proportional–integral (PI) control was used as an inner controller, and to generate the three-phase PWM pulses for each converter; the authors explained the use of the Simulink blocks, which are available in the dedicated library of the software, but did not provide further details of the Simulink model to implement the controller in the dSPACE platform. In [ 31 ], the authors implemented a modified modulated MPC (M

PC) strategy for a grid-connected converter, using a dSPACE ds1104 platform; however, while the authors provided the experimental parameters, they did not explain further the implementation in the dSPACE control platform.…”

Section: Introductionmentioning

confidence: 99%

A Detailed dSPACE-Based Implementation of Modulated Model Predictive Control for AC Microgrids

Villalon

Muñoz

et al. 2023

Sensors

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Microgrids represent a promising energy technology, because of the inclusion in them of clean and smart energy technologies. They also represent research challenges, including controllability, stability, and implementation. This article presents a dSPACE-control-platform-based implementation of a fixed-switching-frequency modulated model predictive control (M2PC) strategy, as an inner controller of a two-level, three-phase voltage source inverter (VSI) working in an islanded AC microgrid. The developed controller is hierarchical, as it includes a primary controller to share the load equally with the other power converter with its own local modulated predictive-based controller. All details of the implementation are given for establishing the dSPACE-based implementation of the control on a dSPACE ds1103 control platform, using MATLAB/Simulink for the controller design, I/O implementation and configuration with the embedded dSPACE’s real-time interface in Simulink, and then using the ControlDesk software for monitoring and testing of the real plant. The latter consists of the VSI operating with LCL filters, and sharing an RL load with a paralleled VSI with exactly the same controller. Finally, the obtained experimental waveforms are shown, with our respective conclusions representing this work, which is a very valuable tool for helping microgrid researchers implement dSPACE-based real-time simulations.

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Microgrid units in the islanded operation mode implemented in the dSPACE DS1103

Cited by 5 publications

References 5 publications

Power sharing control strategies for a three‐phase microgrid in different operating condition with droop control and damping factor investigation

Power sharing control strategies for a three‐phase microgrid in different operating condition with droop control and damping factor investigation

Proteção Direta de Sobrecorrente no Controle de uma Microgrid Trifásica

A Detailed dSPACE-Based Implementation of Modulated Model Predictive Control for AC Microgrids

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