Life time of the electrolytic capacitors in power applications

Špánik, Pavol; Frivaldský, Michal; Kanovsky, Andrej

doi:10.1109/elektro.2014.6848893

Cited by 31 publications

(14 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…V r and current components are analyzed to calculate the value of the ESR using the recursive LMS algorithm as in [26]. Life estimation model for electrolytic capacitor is proposed in [27].…”

Section: Failure Detection Methodsmentioning

confidence: 99%

Real time remaining useful life prediction of the electrolytic capacitor

Khandebharad

Dhumale

Lokhande

et al. 2015

2015 International Conference on Information Processing (ICIP)

View full text Add to dashboard Cite

Electrolytic capacitors are the essential electronic component of the power converters. Few methods are implemented for fault diagnosis or prognosis of the electrolytic capacitors. Most of these methods are based on the parameter like equivalent series resistance (ESR), capacitance (C), operating temperature (T c ), DC operating voltage (V o ), output ripple voltage (V r ) or ripple current (I r ). This paper presents a easy, comprehensive method for the remaining useful life (RUL) prediction of the electrolytic capacitor. The proposed method of online RUL prediction of electrolytic capacitor is based on a lifetime model which is implemented using parameters T c , V o and I r of the electrolytic capacitor. This method is simulated using MATLAB-Simulink and also implemented on hardware using dsPIC33FJ64GS406. The experimental setup is composed of switched mode DC-DC buck converter and a data acquisition system (DAS). Simulation results and experimental results are compared to validate the proposed method. The proposed method implies industrial applications due to its simplicity, less hardware requirements and result orientation.

show abstract

Section: Failure Detection Methodsmentioning

confidence: 99%

Real time remaining useful life prediction of the electrolytic capacitor

Khandebharad

Dhumale

Lokhande

et al. 2015

2015 International Conference on Information Processing (ICIP)

View full text Add to dashboard Cite

show abstract

“…Combining with the frequency

f_{normalS}

and D got from the MCU, the calculation model of ESR is compiled based on (22 ). Thus the ESR is obtained and displayed in real time [14–17].…”

Section: Design Of the Online Identification Systemmentioning

confidence: 99%

Current‐sensorless online ESR monitoring of capacitors in boost converter

Tang

Dong

Liu

et al. 2019

J. eng.

View full text Add to dashboard Cite

“…The moment this SoC is high enough to trigger the PLS, the RESs change to a different operation mode. PLS can also be applied to AC power systems (three-phase ones) as proposed in [21,22,25]. In this particular work, the previous ideas are adapted to be used in single-phase small MGs.…”

Section: Pls Concept Applied To Single-phase Mgsmentioning

confidence: 99%

“…However, electrolytic capacitors' reliability has increased over the past years and now they are not as critical as they used to be [20]. The key to making them last longer is to have them working under their maximum operating temperature [21][22][23][24]. On the other hand, it is a fact that most buildings are single-phase supplied.…”

Section: Introductionmentioning

confidence: 99%

A Distributed Control Strategy for Islanded Single-Phase Microgrids with Hybrid Energy Storage Systems Based on Power Line Signaling

et al. 2018

View full text Add to dashboard Cite

Energy management control is essential to microgrids (MGs), especially to single-phase ones. To handle the variety of distributed generators (DGs) that can be found in a MG, e.g., renewable energy sources (RESs) and energy storage systems (ESSs), a coordinated power regulation is required. The latter are generally battery-based systems whose lifetime is directly related to charge/discharge processes, whereas the most common RESs in a MG are photovoltaic (PV) units. Hybrid energy storage systems (HESS) extend batteries life expectancy, thanks to the effect of supercapacitors, but they also require more complex control strategies. Conventional droop methodologies are usually applied to provide autonomous and coordinated power control. This paper proposes a method for coordination of a single-phase MG composed by a number of sources (HESS, RES, etc.) using power line signaling (PLS). In this distributed control strategy, a signal whose frequency is higher than the grid is broadcasted to communicate with all DGs when the state of charge (SoC) of the batteries reaches a maximum value. This technique prevents batteries from overcharging and maximizes the power contribution of the RESs to the MG. Moreover, different commands apart from the SoC can be broadcasted, just by changing to other frequency bands. The HESS master unit operates as a grid-forming unit, whereas RESs act as grid followers. Supercapacitors in the HESS compensate for energy peaks, while batteries respond smoothly to changes in the load, also expanding its lifetime due to less aggressive power references. In this paper, a control structure that allows the implementation of this strategy in single-phase MGs is presented, with the analysis of the optimal range of PLS frequencies and the required self-adaptive proportional-resonant controllers.

show abstract

Life time of the electrolytic capacitors in power applications

Cited by 31 publications

References 1 publication

Real time remaining useful life prediction of the electrolytic capacitor

Real time remaining useful life prediction of the electrolytic capacitor

Current‐sensorless online ESR monitoring of capacitors in boost converter

A Distributed Control Strategy for Islanded Single-Phase Microgrids with Hybrid Energy Storage Systems Based on Power Line Signaling

Contact Info

Product

Resources

About