Degradation Analysis of DC-Link Aluminium Electrolytic Capacitors Operating in PWM Power Converters
The most common failure mode of aluminium electrolytic capacitor is the so-called wear out fault. It is caused by the high core temperature of the capacitor. Therefore, life cycle calculations generally use temperature data to estimate degradation level. Core temperature-based life cycle calculation...
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VSB-Technical University of Ostrava
2020-01-01
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| Series: | Advances in Electrical and Electronic Engineering |
| Subjects: | |
| Online Access: | http://advances.utc.sk/index.php/AEEE/article/view/3387 |
| _version_ | 1797826981669109760 |
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| author | Krisztian Enisz Gabor Kohlrusz Denes Fodor Laszlo Kovacs Richard Marschalko |
| author_facet | Krisztian Enisz Gabor Kohlrusz Denes Fodor Laszlo Kovacs Richard Marschalko |
| author_sort | Krisztian Enisz |
| collection | DOAJ |
| description | The most common failure mode of aluminium electrolytic capacitor is the so-called wear out fault. It is caused by the high core temperature of the capacitor. Therefore, life cycle calculations generally use temperature data to estimate degradation level. Core temperature-based life cycle calculations can consider different current loads on capacitors. The calculation method uses scaling factors for different ripple current waveforms. However, it is not observed that temperature only is responsible for aging, but current waveform also influences the level of degradation. Therefore, sinusoidal and PWM-loaded capacitor tests were performed under the same temperature conditions. The results show that the pore distribution of aluminium anode foil has changed during the test. The pore diameter reduces and it leads to an increase in the ESR value and decrease in the capacitance, electrolyte amount and weight. Comparative results show that the PWM-loaded capacitor is more degraded than the capacitor loaded by sinusoidal test current. |
| first_indexed | 2024-04-09T12:40:56Z |
| format | Article |
| id | doaj.art-8cd41095a2c740b0bdefef4afce3b88d |
| institution | Directory Open Access Journal |
| issn | 1336-1376 1804-3119 |
| language | English |
| last_indexed | 2024-04-09T12:40:56Z |
| publishDate | 2020-01-01 |
| publisher | VSB-Technical University of Ostrava |
| record_format | Article |
| series | Advances in Electrical and Electronic Engineering |
| spelling | doaj.art-8cd41095a2c740b0bdefef4afce3b88d2023-05-14T20:50:13ZengVSB-Technical University of OstravaAdvances in Electrical and Electronic Engineering1336-13761804-31192020-01-01182859110.15598/aeee.v18i2.33871083Degradation Analysis of DC-Link Aluminium Electrolytic Capacitors Operating in PWM Power ConvertersKrisztian Enisz0Gabor Kohlrusz1Denes Fodor2Laszlo Kovacs3Richard Marschalko4Research Institute of Automotive Mechatronics and Automation, Faculty of Engineering, University of Pannonia, Egyetem u. 10, H-8200 Veszprem, HungaryResearch Institute of Automotive Mechatronics and Automation, Faculty of Engineering, University of Pannonia, Egyetem u. 10, H-8200 Veszprem, HungaryResearch Institute of Automotive Mechatronics and Automation, Faculty of Engineering, University of Pannonia, Egyetem u. 10, H-8200 Veszprem, HungaryResearch Institute of Automotive Mechatronics and Automation, Faculty of Engineering, University of Pannonia, Egyetem u. 10, H-8200 Veszprem, HungaryDepartment of Electrical Drives and Robots, Faculty of Electrical Engineering, Technical University of Cluj-Napoca, G. Baritiu 26--28, 400000 Cluj-Napoca, RomaniaThe most common failure mode of aluminium electrolytic capacitor is the so-called wear out fault. It is caused by the high core temperature of the capacitor. Therefore, life cycle calculations generally use temperature data to estimate degradation level. Core temperature-based life cycle calculations can consider different current loads on capacitors. The calculation method uses scaling factors for different ripple current waveforms. However, it is not observed that temperature only is responsible for aging, but current waveform also influences the level of degradation. Therefore, sinusoidal and PWM-loaded capacitor tests were performed under the same temperature conditions. The results show that the pore distribution of aluminium anode foil has changed during the test. The pore diameter reduces and it leads to an increase in the ESR value and decrease in the capacitance, electrolyte amount and weight. Comparative results show that the PWM-loaded capacitor is more degraded than the capacitor loaded by sinusoidal test current.http://advances.utc.sk/index.php/AEEE/article/view/3387aluminium electrolytic capacitorsdc-link capacitor agingpulse width modulated power converters. |
| spellingShingle | Krisztian Enisz Gabor Kohlrusz Denes Fodor Laszlo Kovacs Richard Marschalko Degradation Analysis of DC-Link Aluminium Electrolytic Capacitors Operating in PWM Power Converters Advances in Electrical and Electronic Engineering aluminium electrolytic capacitors dc-link capacitor aging pulse width modulated power converters. |
| title | Degradation Analysis of DC-Link Aluminium Electrolytic Capacitors Operating in PWM Power Converters |
| title_full | Degradation Analysis of DC-Link Aluminium Electrolytic Capacitors Operating in PWM Power Converters |
| title_fullStr | Degradation Analysis of DC-Link Aluminium Electrolytic Capacitors Operating in PWM Power Converters |
| title_full_unstemmed | Degradation Analysis of DC-Link Aluminium Electrolytic Capacitors Operating in PWM Power Converters |
| title_short | Degradation Analysis of DC-Link Aluminium Electrolytic Capacitors Operating in PWM Power Converters |
| title_sort | degradation analysis of dc link aluminium electrolytic capacitors operating in pwm power converters |
| topic | aluminium electrolytic capacitors dc-link capacitor aging pulse width modulated power converters. |
| url | http://advances.utc.sk/index.php/AEEE/article/view/3387 |
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