Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Impedance matching in photovoltaic systems using cascaded boost converters and sliding-mode control

  • Identification data

    Identifier: imarina:3659634
    Authors:
    Haroun, RehamEl Aroudi, AbdelaliCid-Pastor, AngelGarica, GermainOlalla, CarlosMartinez-Salamero, Luis
    Abstract:
    Switching dc-dc converters are widely used to interface the dc output of renewable energy resources with power distribution systems in order to facilitate the use of energy at the customer side. In the case of residential photovoltaic (PV) applications, high conversion ratio is usually required, in order to adapt the low output voltages of PV modules to a dc bus voltage, while dealing with the appropriate impedance matching. In this paper, a system connected to a PV panel consisting of two cascaded dc-dc boost converters under sliding-mode control and working as loss-free resistors is studied. The modeling, simulation, and design of the system are addressed. First, an ideal reduced-order sliding-mode dynamics model is derived from the full-order switched model taking into account the sliding constraints, the nonlinear characteristic of the PV module, and the dynamics of the MPPT controller. For this model, a design-oriented averaged model is obtained and its dynamic behavior is analyzed showing that the system is asymptotically globally stable. Moreover, the proposed system can achieve a high conversion ratio with an efficiency close to 95% for a wide range of working power. Numerical simulations and experimental results corroborate the theoretical analysis and illustrate the advantages of this architecture in PV systems.
  • Others:

    Author, as appears in the article.: Haroun, Reham; El Aroudi, Abdelali; Cid-Pastor, Angel; Garica, Germain; Olalla, Carlos; Martinez-Salamero, Luis
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Cid Pastor, Angel / El Aroudi Chaoui, Abdelali / Haroun Mohamed Abdelkarim, Reham / Martínez Salamero, Luis / Olalla Martínez, Carlos
    Keywords: Slidingmode control (smc) Photovoltaic (pv) systems Mppt Loss-free resistor (lfr) Impedance matching Cascaded boost converters
    Abstract: Switching dc-dc converters are widely used to interface the dc output of renewable energy resources with power distribution systems in order to facilitate the use of energy at the customer side. In the case of residential photovoltaic (PV) applications, high conversion ratio is usually required, in order to adapt the low output voltages of PV modules to a dc bus voltage, while dealing with the appropriate impedance matching. In this paper, a system connected to a PV panel consisting of two cascaded dc-dc boost converters under sliding-mode control and working as loss-free resistors is studied. The modeling, simulation, and design of the system are addressed. First, an ideal reduced-order sliding-mode dynamics model is derived from the full-order switched model taking into account the sliding constraints, the nonlinear characteristic of the PV module, and the dynamics of the MPPT controller. For this model, a design-oriented averaged model is obtained and its dynamic behavior is analyzed showing that the system is asymptotically globally stable. Moreover, the proposed system can achieve a high conversion ratio with an efficiency close to 95% for a wide range of working power. Numerical simulations and experimental results corroborate the theoretical analysis and illustrate the advantages of this architecture in PV systems.
    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: reham.haroun@urv.cat angel.cid@urv.cat abdelali.elaroudi@urv.cat carlos.olalla@urv.cat
    Author identifier: 0000-0002-8099-4281 0000-0001-8124-6210 0000-0001-9103-7762 0000-0001-8333-9840
    Record's date: 2024-10-12
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://ieeexplore.ieee.org/document/6855363
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Ieee Transactions On Power Electronics. 30 (6): 3185-3199
    APA: Haroun, Reham; El Aroudi, Abdelali; Cid-Pastor, Angel; Garica, Germain; Olalla, Carlos; Martinez-Salamero, Luis (2015). Impedance matching in photovoltaic systems using cascaded boost converters and sliding-mode control. Ieee Transactions On Power Electronics, 30(6), 3185-3199. DOI: 10.1109/TPEL.2014.2339134
    Article's DOI: 10.1109/TPEL.2014.2339134
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2015
    Publication Type: Journal Publications
  • Keywords:

    Electrical and Electronic Engineering,Engineering, Electrical & Electronic
    Slidingmode control (smc)
    Photovoltaic (pv) systems
    Mppt
    Loss-free resistor (lfr)
    Impedance matching
    Cascaded boost converters
    Interdisciplinar
    Engineering, electrical & electronic
    Engenharias iv
    Engenharias iii
    Electrical and electronic engineering
    Ciências agrárias i
    Ciência da computação
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