Condition monitoring of electrolytic capacitor in power electronic circuits using input current

Author

Imam, Afroz M. ; Habetler, Thomas G. ; Harley, Ronald G. ; Divan, Deepak M.

Author_Institution

Dept. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA

fYear

2005

fDate

7-9 Sept. 2005

Firstpage

1

Lastpage

7

Abstract

Electrolytic capacitors are responsible for frequent breakdowns of static converters. To set a predictive maintenance, adaptive filter modeling based method is presented using LMS algorithm. Signature of changes in capacitance and effective series resistance (ESR) will reflect in capacitor ripple voltage because of aging; and these changes are monitored using this adaptive filter modeling to predict the future status of the capacitor using only the input current of the system.

Keywords

adaptive filters; ageing; condition monitoring; electrolytic capacitors; least mean squares methods; power convertors; power electronics; preventive maintenance; LMS algorithm; adaptive filter modeling; aging effects; condition monitoring; effective series resistance; electrolytic capacitor; power electronic circuits; predictive maintenance; static converters; Adaptive filters; Capacitance; Circuits; Condition monitoring; Electric breakdown; Least squares approximation; Power capacitors; Power electronics; Predictive maintenance; Predictive models;

fLanguage

English

Publisher

ieee

Conference_Titel

Diagnostics for Electric Machines, Power Electronics and Drives, 2005. SDEMPED 2005. 5th IEEE International Symposium on

Conference_Location

Vienna

Print_ISBN

978-0-7803-9124-6

Electronic_ISBN

978-0-7803-9125-3

Type

conf

DOI

10.1109/DEMPED.2005.4662526

Filename

4662526