Title :
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
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;
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
DOI :
10.1109/DEMPED.2005.4662526
