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Title: Online equivalent series resistance estimation method for condition monitoring of DC-link capacitors
Authors: Sundararajan Prasanth
Mohamed Halick Mohamed Sathik
Firman Sasongko
Tan, Chuan Seng
Mohd Tariq
Rejeki Simanjorang
Keywords: Band-pass Filters
ESR Estimation
Issue Date: 2017
Source: Prasanth, S., Mohamed Sathik, M. H., Sasgonko, F., Tan, C. S., Mohd Tariq, & Simanjorang, R. (2017, October). Online equivalent series resistance estimation method for condition monitoring of DC-link capacitors. Paper presented at 2017 IEEE Energy Conversion Congress and Exposition, Cincinnati, OH, USA.
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Abstract: In this paper, a cost-effective and reliable equivalent series resistance (ESR) estimation method for aluminium electrolytic capacitors used as DC-link capacitors in front-end rectifier fed inverters is proposed. The proposed method is based on the extraction of switching frequency components of DC-link voltage and current using band-pass filters. A limiting value of switching frequency is identified, below which a new solution is proposed to achieve higher accuracy compared to the similar methods using band-pass filters. The proposed method is verified by both simulation and experimental results and it is shown that the estimation error is very low so that this method can be used for condition monitoring of DC-link capacitors.
Rights: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Conference Papers

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