Title :
A Real-Time Predictive-Maintenance System of Aluminum Electrolytic Capacitors Used in Uninterrupted Power Supplies
Author :
Abdennadher, Karim ; Venet, Pascal ; Rojat, Gérard ; Rétif, Jean-Marie ; Rosset, Christophe
Author_Institution :
Emerging Technol. Dept. of IT Bus., INOVALLEE, St. Ismier, France
Abstract :
This paper presents a low-cost method to realize a real-time condition monitoring and a predictive-maintenance system of an electrolytic capacitor used in uninterruptible power supplies (UPSs). This method consists in detecting the changes in real time of the equivalent series resistance and the capacitance C values of the electrolytic capacitors. Simulation and experimental results are presented to illustrate the proposed monitoring technique. The proposed method can be used in UPS where waveforms are continuously varying in amplitude, frequency, and temperature. The proposed online failure prediction method has the merits of using only the existent resources in UPS and with the use of known algorithms.
Keywords :
aluminium; condition monitoring; electrical maintenance; electrolytic capacitors; uninterruptible power supplies; aluminum electrolytic capacitors; equivalent series resistance; online failure prediction method; real time predictive maintenance system; uninterrupted power supplies; Aluminum; Capacitance; Capacitors; Condition monitoring; Frequency; Power supplies; Prediction methods; Real time systems; Temperature; Uninterruptible power systems; Electrolytic capacitors; Kalman filtering; identification; predictive maintenance; real time;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2010.2049972