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Fault Diagnosis and Life Prediction of DC-link Aluminum Electrolytic Capacitors Used in Three-phase AC/DC/AC Converters

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4 Author(s)
Yong Yu ; Dept. of Electr. Eng., Harbin Inst. of Technol., Harbin, China ; Tao Zhou ; Mingjun Zhu ; Dianguo Xu

A very simple and low-cost strategy for the fault diagnosis and life prediction of DC-link aluminum electrolytic capacitors which is used in three-phase converters is presented in this paper. The main idea of this paper is to calculate the value of ESR and C using the inverter based on Recursive Least Square (RLS) method whenever the motor is stopped. The proposed strategy can provide a quick and accurate estimation of ESR and C with minimal hardware requirements. Theoretical analysis and simulation experiment are implemented to illustrate the efficiency of the proposed technique.

Published in:
Instrumentation, Measurement, Computer, Communication and Control (IMCCC), 2012 Second International Conference on

Date of Conference: 8-10 Dec. 2012

Page(s):
825 - 830
Print ISBN:
978-1-4673-5034-1
INSPEC Accession Number:
13289836
Conference Location :
Harbin
Digital Object Identifier :
10.1109/IMCCC.2012.199
Product Type:
Conference Publications

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