| 摘要 |
PROBLEM TO BE SOLVED: To provide an abnormality detection method which can safely and continuously control the state, without having to stop the operation by judging the normality/abnormality of a plurality of electric double-layer capacitor C<SB>1</SB>, C<SB>2</SB>,..., C<SB>n</SB>connected in series. SOLUTION: In this abnormality detection method for the electric double-layer capacitors, a circuit which charges the group 5 of the electric capacitors connected in series is equipped with a means of measuring the charging current and voltage of the electric double-layer capacitors C<SB>1</SB>, C<SB>2</SB>,..., C<SB>n</SB>consisting of one or more units, and the normality/abnormality is decided by calculating the charged quantity supplied to the electric double-layer capacitors C<SB>1</SB>, C<SB>2</SB>,..., and C<SB>n</SB>and/or the capacitance, based on the value, and comparing them or with a preset quantity of charge and/or the reference value of the capacitance. COPYRIGHT: (C)2003,JPO
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