Simple model of an electrolytic capacitor taking into account the temperature and aging time

Perisse, Frédéric; Venet, Pascal; Rojat, Gérard; Rétif, Jean-Marie

doi:10.1007/s00202-004-0265-z

Cited by 41 publications

(22 citation statements)

References 5 publications

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“…In this model, ESR and C 0 are two parameters affected by thermal aging. According to several degradation predictive models of aluminum capacitor [11,15] and the experimental results, the degradation model up to 3 MHz is proposed by:…”

Section: Modeling Of Aluminum Capacitormentioning

confidence: 99%

Analysis and modeling of passive device degradation for a long-term electromagnetic emission study of a DC–DC converter

Huang

Boyer

Dhia

2015

Microelectronics Reliability

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Past works showed that the degradation of the passive components caused by aging could induce failures of electronic system, including a harmful evolution of electromagnetic compatibility. This paper presents the impact of the accelerated thermal aging on the electromagnetic emission (EME) of a buck DC-DC converter. The experimental analysis indicates that the aging degradation of several passive components (electrolytic capacitor and powder iron inductor) is the main source of EME evolution. Based on experimental measurement and physical analysis, the empirical degradation models of related passive devices are proposed. The overall objective of this study is to predict the electromagnetic emission evolution of a buck DC-DC converter under a thermal aging, by using these passive device degradation models.

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Section: Modeling Of Aluminum Capacitormentioning

confidence: 99%

Analysis and modeling of passive device degradation for a long-term electromagnetic emission study of a DC–DC converter

Huang

Boyer

Dhia

2015

Microelectronics Reliability

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“…1. Structure of a screw terminals electrolytic capacitor [16] Due to the physical design elements and construction, aluminium electrolytic capacitors are modeled by the electrical equivalent circuit [14], [17] given in Fig.2. This model, which is the most used one, is rather simple and gives a good frequency response.…”

Section: A Electrolytic Capacitor Modelingmentioning

confidence: 99%

“…Evolution of ESR and C versus ambient temperature T a is given by the following equation [14] where α,β,γ and χ,ν,λ are experimental parameters and depend on the used capacitor.…”

Section: B Aging Algorithmmentioning

confidence: 99%

“…Time until failure compared to failure limits of ESR and C can be calculated by using the equations below [14]. Moreover, a recursive least square algorithm (a particular case of Kalman filter) has been implemented to work in background task and to identify the two parameters ESR and C. In literature [15], we know that using different cases of Kalman filter provides centered input and output system measurements which are respectively capacitor current and capacitor voltage.…”

Section: B Aging Algorithmmentioning

confidence: 99%

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A Real Time Predictive Maintenance System of Aluminium Electrolytic Capacitors Used in Uninterrupted Power Supplies

Abdennadher

Venet

Rojat

et al. 2008

2008 IEEE Industry Applications Society Annual Meeting

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Abstract-This paper presents a low cost method to realize a real time condition monitoring and a predictive maintenance system of an electrolytic capacitor used in Uninterrupted Power Supplies (UPS). This method consists in detecting the changes on real time in equivalent series resistance (ESR) and the capacitance C values of the electrolytic capacitors. Simulation and experimental results are presented to illustrate the proposed monitoring technique. The proposed method can be used in UPS where waveforms are continuously varying in amplitude, frequency and versus temperature. The proposed on line failure prediction method has the merits of using only the existent resources in UPS and with the use of knower algorithms.

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“…The capacitance will decrease, and the equivalent series resistance will increase gradually along with the volatilization of electrolyte. Generally, when the capacitance reduces to 80%, or the ESR increases to 2-3 times of the initial value with the same temperature, the capacitor can be considered lapsed [1][2][3]. So it is very important to monitor ESR and C of the electrolytic capacitor and predict its life.…”

Section: Introductionmentioning

confidence: 99%

A novel online ESR and C identification method for output capacitor of buck converter

Yao

Zhou

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

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As electrolytic capacitor is apt to fail in power circuits, it is very important to monitor its electrical parameters, mainly the equivalent series resistance (ESR) and capacitance (C). A novel non-invasive online monitoring method of capacitor's ESR and C for CCM buck converter is proposed in this paper. Based on the ac component of capacitor voltage, the calculation model is founded. By sampling the PWM signal and output voltage, the method needs no current sensor and is effective for the CCM buck converter operating at different conditions. Implementation of the monitoring system is presented. The experimental results validate the effectiveness of the method.

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Simple model of an electrolytic capacitor taking into account the temperature and aging time

Cited by 41 publications

References 5 publications

Analysis and modeling of passive device degradation for a long-term electromagnetic emission study of a DC–DC converter

Analysis and modeling of passive device degradation for a long-term electromagnetic emission study of a DC–DC converter

A Real Time Predictive Maintenance System of Aluminium Electrolytic Capacitors Used in Uninterrupted Power Supplies

A novel online ESR and C identification method for output capacitor of buck converter

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