An online monitoring scheme of output capacitor's equivalent series resistance for buck converters without current sensors

X Duan, J Zou, B Li, Z Wu, D Lei - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Aluminum electrolytic capacitors are widely used in switching mode power supply as
smoothing capacitor, but they are the weakest among power components in dc–dc …

On-line diagnostics of electrolytic capacitors in fault-tolerant LED lighting systems

K Laadjal, F Bento, AJM Cardoso - Electronics, 2022 - mdpi.com
As technology advances, the utilization of lighting systems based on light-emitting diode
(LED) technology is becoming increasingly essential, given its benefits in terms of efficiency …

Thermal modeling of large electrolytic capacitors using FEM and considering the internal geometry

T Lledó-Ponsati, AS Bahman… - IEEE Journal of …, 2021 - ieeexplore.ieee.org
This article focuses on developing a finite-element method (FEM) model for large capacitors'
thermal modeling and reliability analysis. Thermal modeling for capacitors is critical since …

[HTML][HTML] Optimized Preventive Diagnostic Algorithm for Assessing Aluminum Electrolytic Capacitor Condition Using Discrete Wavelet Transform and Kalman Filter

AMR Amaral, K Laadjal, AJ Marques Cardoso - Electronics, 2024 - mdpi.com
Power converters (PCs) are vital elements of critical applications, making their reliable
operation crucial. Enhancing PCs' reliability can be achieved by adding intelligence to the …

Deep neural network-based lifetime diagnosis algorithm with electrical capacitor accelerated life test

SH Jeong, JW Park, HS Kim - Journal of Power Sources, 2024 - Elsevier
Power storage and conversion technologies are increasingly in demand for their energy
efficiency and eco-friendliness, with capacitors being key in stabilizing and filtering voltage …

Online condition monitoring of electrolytic capacitors in DC-DC interleaved boost converters, adopting a model-free predictive controller

K Laadjal, F Bento, I Jlassi… - 2021 IEEE 15th …, 2021 - ieeexplore.ieee.org
Aluminum electrolytic capacitors (AECs) are widely used in the DC link of power converters,
such as the DC-DC interleaved boost converter (IBC), which offers many advantages over …

[HTML][HTML] Converter Capacitor Temperature Estimation Based on Continued Training LSTM under Variable Load Conditions

X Dai, Y Chen, J Chen, R Qiu - Sensors, 2024 - mdpi.com
Capacitors are crucial components in power electronic converters, responsible for harmonic
elimination, energy buffering, and voltage stabilization. However, they are also the most …

Digital twin system of capacitive DC bank considering the electrothermal coupling effect

M Zhu, Y Liu, M Huang, X Zha - 2022 IEEE Energy Conversion …, 2022 - ieeexplore.ieee.org
Due to the frequency and temperature characteristics of the DC bank capacitor, the electrical
and thermal stress of the capacitor are coupled. This paper proposes a digital twin modeling …

Online condition monitoring for DC-link capacitors of motor drives under noise interference

Q Zhu, J Zhao, Y Song, Y Zhou, J Sun - Journal of Power Electronics, 2022 - Springer
In this paper, a capacitance estimation method based on the recursive least squares (RLS)
algorithm is proposed for the condition monitoring of the dc-link capacitors in motor drive …

System-level Parameters Identification for DC-DC Converters Based on Artificial Neural Network Algorithm

C Lu, J Li, K Chen, W Zhou, Q Wu… - 2023 IEEE Energy …, 2023 - ieeexplore.ieee.org
The existing Artificial Neural Network (ANN) methods for parameters identification are
suffering from either training cost or low estimation accuracy. To overcome the …