ELECTRIC DOUBLE-LAYER CAPACITOR MONITORING DEVICE AND METHOD OF PREDICTING REMAINING LIFE TIME OF THE ELECTRIC DOUBLE-LAYER CAPACITOR

摘要

PROBLEM TO BE SOLVED: To provide a monitoring device that monitors the state of an electric double-layer capacitor by predicting the remaining life of the capacitor, in an electric double-layer capacitor system.;SOLUTION: A central operating unit of an EDLC bank control device 10 predicts the remaining life time of an EDLC bank 4, on the basis of the history of measured data obtained by a voltmeter 13, an atmosphere temperature sensor 14, and a box surface temperature sensor 15. When the predicted remaining life time reaches a prescribed value, an alarm is raised for impelling the replacement of the EDLC bank 4. Then, a bank to be put under the charging and discharging control is switched to the EDLC bank 12 for back-up.;COPYRIGHT: (C)2005,JPO&NCIPI