Title :
Failure prediction of electrolytic capacitor using DSP methods
Author :
Imam, Afioz M. ; Habetler, Thomas G. ; Harley, Ronald G. ; Divan, Deepak
Author_Institution :
Dept. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA
Abstract :
Electrolytic capacitors are responsible for frequent breakdowns of static converters. A new DSP based method, to set a predictive maintenance, is presented. Signature of changes in capacitance and ESR, due to aging, will reflect in capacitor ripple voltage and current; and these changes are monitored using proposed method to predict the future status of the capacitor
Keywords :
digital signal processing chips; electric breakdown; electrolytic capacitors; failure analysis; maintenance engineering; power convertors; DSP; breakdown; digital signal processing; effective series resistance; electrolytic capacitor; failure prediction; predictive maintenance; ripple current; ripple voltage; static converters; Capacitance; Capacitors; Digital signal processing; Electric breakdown; Electrodes; Immune system; Paramagnetic resonance; Predictive maintenance; Temperature dependence; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2005. APEC 2005. Twentieth Annual IEEE
Conference_Location :
Austin, TX
Print_ISBN :
0-7803-8975-1
DOI :
10.1109/APEC.2005.1453106
