| 摘要 |
<p>PURPOSE: An electricity storage device and an electricity storage system are provided to reduce the size of facility. CONSTITUTION: A DC/DC converter(12) comprises a discharge terminal and a charging terminal. The DC/DC converter outputs voltage by boosting voltage of the DC power supplied from the discharge terminal. Multiple conversion units convert connection between a storage battery and a first connection terminal, a second connect terminal, and a third connection terminal. A control unit(11) controls the operation of the multiple conversion units and DC/DC converter. [Reference numerals] (1) Alternating current power source; (10) Electricity storage device; (11) Control unit; (12) DC/DC converter; (2) Load; (3) AC/DC bilateral converter; (4,5,6,7) Storage battery</p> |
