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    DC capacitance reduction in three-phase photovoltaic inverters by using virtual impedance emulation

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    2020020253_Urtasun_DCcapacitanceReduction.pdf (752.7Kb)
    Date
    2019
    Author
    Urtasun Erburu, Andoni Upna Orcid
    Sanchis Gúrpide, Pablo Upna Orcid
    Marroyo Palomo, Luis Upna Orcid
    Version
    Acceso abierto / Sarbide irekia
    Type
    Contribución a congreso / Biltzarrerako ekarpena
    Version
    Versión aceptada / Onetsi den bertsioa
    Project Identifier
    ES/1PE/DPI2016-80641-R 
    Impact
     
     
     
    10.23919/EPE.2019.8915460
     
     
     
    Show full item record
    Abstract
    DC voltage regulation in grid-connected three-phase PV inverters is a fundamental requirement. In order to reduce the influence of the PV non-linear behavior and ensure stability in the whole operating range, the input capacitance in high-power inverters is currently oversized, thus increasing the converter cost. This paper proposes a control method which emulates a virtual impedance in parallel ... [++]
    DC voltage regulation in grid-connected three-phase PV inverters is a fundamental requirement. In order to reduce the influence of the PV non-linear behavior and ensure stability in the whole operating range, the input capacitance in high-power inverters is currently oversized, thus increasing the converter cost. This paper proposes a control method which emulates a virtual impedance in parallel with the PV generator, making it possible to reduce the capacitance by a factor of 5. Simulation results confirm that the proposed control is stable and fast enough in the whole operating range with such a small capacitor. [--]
    Subject
    Converter control, Frequency-Domain Analysis, Photovoltaic, Renewable energy systems
     
    Publisher
    IEEE
    Published in
    2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe): Genova, Italy, 2019, pp. 1-9
    Departament
    Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación / Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko, Elektroniko eta Telekomunikazio Saila / Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. ISC - Institute of Smart Cities
     
    Publisher version
    https://doi.org/10.23919/EPE.2019.8915460
    URI
    https://hdl.handle.net/2454/37008
    Sponsorship
    This work was supported by the Spanish State Research Agency (AEI) and FEDER-UE under grant DPI2016-80641-R. The authors gratefully acknowledge the financial and ongoing support of Ingeteam Power Technology.
    Appears in Collections
    • Comunicaciones y ponencias de congresos DIEC - IEKS Biltzarretako komunikazioak eta txostenak [88]
    • Comunicaciones y ponencias de congresos ISC - ISC biltzarretako komunikazioak eta txostenak [116]
    • Comunicaciones y ponencias de congresos - Biltzarrak eta Argitalpenak [576]
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