The Sensitivity of an Electro-Thermal Photovoltaic DC–DC Converter Model to the Temperature Dependence of the Electrical Variables for Reliability Analyses
The operational expenditures of solar energy are gaining attention because of the continuous decrease of the capital expenditures. This creates a demand for more reliable systems to further decrease the costs. Increased reliability is often ensured by iterative use of design for reliability. The num...
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MDPI AG
2020-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/11/2865 |
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| author | Wieland Van De Sande Simon Ravyts Omid Alavi Philippe Nivelle Johan Driesen Michaël Daenen |
| author_facet | Wieland Van De Sande Simon Ravyts Omid Alavi Philippe Nivelle Johan Driesen Michaël Daenen |
| author_sort | Wieland Van De Sande |
| collection | DOAJ |
| description | The operational expenditures of solar energy are gaining attention because of the continuous decrease of the capital expenditures. This creates a demand for more reliable systems to further decrease the costs. Increased reliability is often ensured by iterative use of design for reliability. The number of iterations that can take place strongly depends on the computational efficiency of this methodology. The main research objective is to quantify the influence of the temperature dependence of the electrical variables used in the electro-thermal model on the reliability and the computation time. The influence on the reliability is evaluated by using a 2-D finite elements method model of the MOSFET and calculating the plastic energy dissipation density in the die-attach and the bond wire. The trade-off between computation time of the electro-thermal model in PLECS (4.3, Plexim, Zurich, Switzerland) and generated plastic energy accuracy obtained in COMSOL (5.3, COMSOL Inc., Burlington, MA, USA) is reported when excluding a certain temperature dependence. The results indicate that the temperature dependence of the input and output capacitors causes no change in the plastic energy dissipated in the MOSFET but does introduce the largest increase in computation time. However, not including the temperature dependence of the MOSFET itself generates the largest difference in plastic energy of 10% as the losses in the die are underestimated. |
| first_indexed | 2024-03-10T19:21:41Z |
| format | Article |
| id | doaj.art-4a4c4a9a714a4674a41884fd72c996c5 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T19:21:41Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4a4c4a9a714a4674a41884fd72c996c52023-11-20T02:52:51ZengMDPI AGEnergies1996-10732020-06-011311286510.3390/en13112865The Sensitivity of an Electro-Thermal Photovoltaic DC–DC Converter Model to the Temperature Dependence of the Electrical Variables for Reliability AnalysesWieland Van De Sande0Simon Ravyts1Omid Alavi2Philippe Nivelle3Johan Driesen4Michaël Daenen5IMO-IMOMEC, Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, BelgiumESAT-ELECTA, KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven, BelgiumIMO-IMOMEC, Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, BelgiumIMO-IMOMEC, Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, BelgiumESAT-ELECTA, KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven, BelgiumIMO-IMOMEC, Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, BelgiumThe operational expenditures of solar energy are gaining attention because of the continuous decrease of the capital expenditures. This creates a demand for more reliable systems to further decrease the costs. Increased reliability is often ensured by iterative use of design for reliability. The number of iterations that can take place strongly depends on the computational efficiency of this methodology. The main research objective is to quantify the influence of the temperature dependence of the electrical variables used in the electro-thermal model on the reliability and the computation time. The influence on the reliability is evaluated by using a 2-D finite elements method model of the MOSFET and calculating the plastic energy dissipation density in the die-attach and the bond wire. The trade-off between computation time of the electro-thermal model in PLECS (4.3, Plexim, Zurich, Switzerland) and generated plastic energy accuracy obtained in COMSOL (5.3, COMSOL Inc., Burlington, MA, USA) is reported when excluding a certain temperature dependence. The results indicate that the temperature dependence of the input and output capacitors causes no change in the plastic energy dissipated in the MOSFET but does introduce the largest increase in computation time. However, not including the temperature dependence of the MOSFET itself generates the largest difference in plastic energy of 10% as the losses in the die are underestimated.https://www.mdpi.com/1996-1073/13/11/2865photovoltaicDC/DC convertersensitivitytemperature dependenceplastic energy dissipation |
| spellingShingle | Wieland Van De Sande Simon Ravyts Omid Alavi Philippe Nivelle Johan Driesen Michaël Daenen The Sensitivity of an Electro-Thermal Photovoltaic DC–DC Converter Model to the Temperature Dependence of the Electrical Variables for Reliability Analyses Energies photovoltaic DC/DC converter sensitivity temperature dependence plastic energy dissipation |
| title | The Sensitivity of an Electro-Thermal Photovoltaic DC–DC Converter Model to the Temperature Dependence of the Electrical Variables for Reliability Analyses |
| title_full | The Sensitivity of an Electro-Thermal Photovoltaic DC–DC Converter Model to the Temperature Dependence of the Electrical Variables for Reliability Analyses |
| title_fullStr | The Sensitivity of an Electro-Thermal Photovoltaic DC–DC Converter Model to the Temperature Dependence of the Electrical Variables for Reliability Analyses |
| title_full_unstemmed | The Sensitivity of an Electro-Thermal Photovoltaic DC–DC Converter Model to the Temperature Dependence of the Electrical Variables for Reliability Analyses |
| title_short | The Sensitivity of an Electro-Thermal Photovoltaic DC–DC Converter Model to the Temperature Dependence of the Electrical Variables for Reliability Analyses |
| title_sort | sensitivity of an electro thermal photovoltaic dc dc converter model to the temperature dependence of the electrical variables for reliability analyses |
| topic | photovoltaic DC/DC converter sensitivity temperature dependence plastic energy dissipation |
| url | https://www.mdpi.com/1996-1073/13/11/2865 |
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