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FPGA-in-the-loop simulation of a grid-connected photovoltaic system by using a predictive control

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Abstract

Currently, the use of Field Programmable Gate Array (FPGA) devices as control platforms is common in areas where real-time control is important, as renewable energy system. Grid-connected photovoltaic systems require control strategies to optimize the performance of the complete system. This article presents the implementation of a control strategy on a FPGA platform working with a single-phase grid-connected photovoltaic system developed in MATLAB/Simulink environment. The control strategy of the system consists of a variable-step MPPT algorithm with a predictive current control to operate a boost converter on the first stage. In the second stage, a simplified active and reactive power control ensures that the maximum power is transferred to the grid trough a cascaded H-bridge multilevel inverter. A single-phase PLL based on the PQ theory is used to track the frequency of the grid. The results obtained in the simulation allow to validate the proposed strategy.

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Authors and Affiliations

  1. National Institute for Astrophysics, Optics and Electronics, Luis Enrique Erro #1, Puebla, Mexico

    Marco Morales-Caporal, Jose Rangel-Magdaleno & Hayde Peregrina-Barreto

  2. Instituto Tecnologico de Apizaco, Tlaxcala, Mexico

    Roberto Morales-Caporal

Authors
  1. Marco Morales-Caporal
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  2. Jose Rangel-Magdaleno
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  3. Hayde Peregrina-Barreto
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  4. Roberto Morales-Caporal
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Correspondence to Jose Rangel-Magdaleno.

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Morales-Caporal, M., Rangel-Magdaleno, J., Peregrina-Barreto, H. et al. FPGA-in-the-loop simulation of a grid-connected photovoltaic system by using a predictive control. Electr Eng 100, 1327–1337 (2018). https://doi.org/10.1007/s00202-017-0596-1

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  • DOI: https://doi.org/10.1007/s00202-017-0596-1

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