The amount and quality of the energy converted by a photovoltaic system connected to the grid can be evaluated by experimental monitoring or computer simulation. The Solar Energy Laboratory at UFRGS developed a simulation software for analysis of grid connected photovoltaic systems (FVCONECT). In order to perform a reliable simulation, it is required for the implementation of suitable mathematical models that describe the behavior of each system component. The inverter is the equipment responsible for converting DC to AC. The manufacturers provide some technical parameters for the inverters. However, electrical and thermal characteristics require mathematical models which coefficients must be obtained from specific tests. This work presents a methodology for analysis of thermal behavior of inverters. Such analysis requires experimental determination of two thermal coefficients. Energy losses due to inverters overheating can be calculated through the proposed methodology, providing a more accurate simulation of a determined photovoltaic (PV) system. The proposed methodology has been tested in several inverters, providing good results.
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Methodology for Analysis of Thermal Behavior of Inverters for Photovoltaic Systems
G. A. Rampinelli,
G. A. Rampinelli
Universidade Federal de Santa Catarina (UFSC),
Campus Araranguá,
Araranguá-SC, 88905-355, Brazil
e-mail: giuliano.rampinelli@ufsc.br
Campus Araranguá,
Araranguá-SC, 88905-355, Brazil
e-mail: giuliano.rampinelli@ufsc.br
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A. Krenzinger,
A. Krenzinger
Universidade Federal do Rio Grande do Sul (UFRGS),
Solar Energy Laboratory,
Porto Alegre, 90040-060, Brazil
e-mail: arno.krenzinger@ufrgs.br
Solar Energy Laboratory,
Porto Alegre, 90040-060, Brazil
e-mail: arno.krenzinger@ufrgs.br
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A. J. Bühler
A. J. Bühler
Instituto Federal do Rio Grande do Sul (IFRS),
Campus Farroupilha,
Cinquentenario, Farroupilha-RS 95180-000, Brazil
e-mail: ajbuhler@gmail.com
Campus Farroupilha,
Cinquentenario, Farroupilha-RS 95180-000, Brazil
e-mail: ajbuhler@gmail.com
Search for other works by this author on:
G. A. Rampinelli
Universidade Federal de Santa Catarina (UFSC),
Campus Araranguá,
Araranguá-SC, 88905-355, Brazil
e-mail: giuliano.rampinelli@ufsc.br
Campus Araranguá,
Araranguá-SC, 88905-355, Brazil
e-mail: giuliano.rampinelli@ufsc.br
A. Krenzinger
Universidade Federal do Rio Grande do Sul (UFRGS),
Solar Energy Laboratory,
Porto Alegre, 90040-060, Brazil
e-mail: arno.krenzinger@ufrgs.br
Solar Energy Laboratory,
Porto Alegre, 90040-060, Brazil
e-mail: arno.krenzinger@ufrgs.br
A. J. Bühler
Instituto Federal do Rio Grande do Sul (IFRS),
Campus Farroupilha,
Cinquentenario, Farroupilha-RS 95180-000, Brazil
e-mail: ajbuhler@gmail.com
Campus Farroupilha,
Cinquentenario, Farroupilha-RS 95180-000, Brazil
e-mail: ajbuhler@gmail.com
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received October 22, 2015; final manuscript received September 29, 2016; published online November 17, 2016. Assoc. Editor: Carlos F. M. Coimbra.
J. Sol. Energy Eng. Apr 2017, 139(2): 025501 (6 pages)
Published Online: November 17, 2016
Article history
Received:
October 22, 2015
Revised:
September 29, 2016
Citation
Rampinelli, G. A., Krenzinger, A., and Bühler, A. J. (November 17, 2016). "Methodology for Analysis of Thermal Behavior of Inverters for Photovoltaic Systems." ASME. J. Sol. Energy Eng. April 2017; 139(2): 025501. https://doi.org/10.1115/1.4034973
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