Advances in Capacitor Health Monitoring Techniques for Power Converters: A Review
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Date
2023
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers Inc.
Abstract
Capacitors play a critical role in power electronic systems, and their health and performance directly impact system reliability and efficiency. This article provides an overview of advanced techniques developed for capacitor monitoring, focusing on diagnosing, estimating, and predicting capacitor health in various power electronic converters. The condition monitoring techniques are categorized based on the type of converter, and a comprehensive review and comparison of various methods are provided within each category. The article covers various techniques, including impedance spectroscopy, frequency response analysis, harmonic analysis, wavelet analysis, short-time Fourier transform, and algorithm-based predictive models. These techniques enable early detection of capacitor faults, accurate estimation of capacitance and equivalent series resistance (ESR), and prediction of the remaining useful life of capacitors. By implementing these advanced monitoring techniques, engineers and researchers can enhance system reliability, prevent unexpected failures, and optimize maintenance and replacement strategies for capacitors in power electronic systems. 2023 The Authors. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Description
Keywords
Condition monitoring, Electric resistance, Frequency response, Power converters, Power electronics, Reliability, Equivalent series resistance, Health monitoring technique, Least-mean-squares algorithms, Monitoring techniques, Performance, Power electronic systems, Power-electronics, Series resistances, Support vectors machine, System reliability, Capacitance
Citation
IEEE Access, 2023, 11, , pp. 133540-133576