| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To detect an abnormality in a current sensor with high accuracy. <P>SOLUTION: The power storage system comprises: a first current sensor which detects current flowing through a step-up transformer for performing voltage conversion between a power storage device for charging/discharging electricity and a first load which operates by receiving electric power of the power storage device; a second current sensor which is provided between the power storage device and a second load which is connected between the step-up transformer and the power storage device, and operates by receiving electric power of the power storage device, and detects charging/discharging electricity of the power storage device; and a controller which detects an abnormality in the current sensor. The controller compares a variation of a detection value in the first current sensor and a variation of a detection value in a second current sensor in a predetermined period to detect an abnormality in the current sensor. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
