Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Analysis, Design and Implementation of a Static Conductance-Based MPPT Method

  • Identification data

    Identifier: imarina:5132111
    Authors:
    Lopez-Santos O, Garcia G, Martinez-Salamero L, Giral R, Vidal-Idiarte E, Merchan-Riveros M, Moreno-Guzman Y
    Abstract:
    This paper introduces a maximum power point tracking (MPPT) method based on a power (P) versus static conductance (G) curve of a photovoltaic (PV) array. The maximum power point (MPP) is tracked by comparing the PV array instantaneous power to a varying power reference generated by the MPPT algorithm. The comparison error is used to reduce or increase the conductance at which the PV array is forced to operate until the MPP is reached. Simultaneously, the error is used to change the power reference until the trajectory of this reference in the P-G curve enters a limit cycle around the MPP. The P-G curve is derived from a piecewise linear approximation of the current versus voltage (I-V) curve, which facilitates the analytical description of the tracking operation. The technique reported can also be implemented by means of simple analog or digital circuitry and requires two sensors to measure the instantaneous PV array current and voltage. It uses only four tuning parameters, which are selected depending on the maximum value of the derivative of the power with respect to the conductance. The theoretical predictions are verified with simulations and experimental results. The latter show that the procedure performs well enough to be favorably compared with the most efficient MPPT methods.
  • Others:

    Author, as appears in the article.: Lopez-Santos O, Garcia G, Martinez-Salamero L, Giral R, Vidal-Idiarte E, Merchan-Riveros M, Moreno-Guzman Y
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Giral Castillon, Roberto / Martínez Salamero, Luis / Vidal Idiarte, Enric
    Project code: DPI2016-80491-R
    Keywords: Power-conductance p-g) curve Photovoltaic generators Maximum power point tracking (mppt) Extremum-seeking control
    Abstract: This paper introduces a maximum power point tracking (MPPT) method based on a power (P) versus static conductance (G) curve of a photovoltaic (PV) array. The maximum power point (MPP) is tracked by comparing the PV array instantaneous power to a varying power reference generated by the MPPT algorithm. The comparison error is used to reduce or increase the conductance at which the PV array is forced to operate until the MPP is reached. Simultaneously, the error is used to change the power reference until the trajectory of this reference in the P-G curve enters a limit cycle around the MPP. The P-G curve is derived from a piecewise linear approximation of the current versus voltage (I-V) curve, which facilitates the analytical description of the tracking operation. The technique reported can also be implemented by means of simple analog or digital circuitry and requires two sensors to measure the instantaneous PV array current and voltage. It uses only four tuning parameters, which are selected depending on the maximum value of the derivative of the power with respect to the conductance. The theoretical predictions are verified with simulations and experimental results. The latter show that the procedure performs well enough to be favorably compared with the most efficient MPPT methods.
    Thematic Areas: Interdisciplinar Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering Ciências agrárias i Ciência da computação
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 08858993
    Author's mail: luis.martinez@urv.cat enric.vidal@urv.cat roberto.giral@urv.cat
    Author identifier: 0000-0003-3344-9501 0000-0002-6016-4096 0000-0001-6582-6741
    Record's date: 2023-02-18
    Papper version: info:eu-repo/semantics/submittedVersion
    Link to the original source: https://ieeexplore.ieee.org/document/8359380
    Papper original source: Ieee Transactions On Power Electronics. 34 (2): 1960-1979
    APA: Lopez-Santos O, Garcia G, Martinez-Salamero L, Giral R, Vidal-Idiarte E, Merchan-Riveros M, Moreno-Guzman Y (2019). Analysis, Design and Implementation of a Static Conductance-Based MPPT Method. Ieee Transactions On Power Electronics, 34(2), 1960-1979. DOI: 10.1109/TPEL.2018.2835814
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Article's DOI: 10.1109/TPEL.2018.2835814
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2019
    Funding program action: Plan Nacional I+D+I
    Publication Type: Journal Publications
  • Keywords:

    Electrical and Electronic Engineering,Engineering, Electrical & Electronic
    Power-conductance p-g) curve
    Photovoltaic generators
    Maximum power point tracking (mppt)
    Extremum-seeking control
    Interdisciplinar
    Engineering, electrical & electronic
    Engenharias iv
    Engenharias iii
    Electrical and electronic engineering
    Ciências agrárias i
    Ciência da computação
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