Power storage system with control device
A power storage system includes: a stationary power storage device configured to supply electric power to an electrical load; a control device configured to receive supply of electric power from each of the power storage device and another power source; a relay located between the power storage device and the control device and between the power storage device and the electrical load, but not between the control device and the power source; and an input device configured to accept input from a user. When a connection request is input to the input device while the relay is in a disconnected state, the control device brings the relay into a connected state.
1 . A power storage system comprising:
a stationary power storage device configured to supply electric power to an electrical load;
a control device configured to receive supply of electric power from each of the stationary power storage device and another power source;
a relay located between the stationary power storage device and the control device and between the stationary power storage device and the electrical load, but not between the control device and the another power source; and
an input device configured to accept input from a user, wherein when a connection request is input to the input device while the relay is in a disconnected state, the control device is configured to bring the relay into a connected state;
wherein:
the stationary power storage device includes an assembled battery including a plurality of cells electrically connected to each other;
the control device is configured to execute equalization of cell voltages in the assembled battery when the relay is in the disconnected state; and
the control device is configured to stop the equalization of the cell voltages and then bring the relay into the connected state when the connection request is input to the input device while executing the equalization of the cell voltages.
2 . The power storage system according to claim 1 , wherein:
the input device is configured to accept input of the connection request when a predetermined condition is satisfied, and is configured not to accept the input of the connection request when the predetermined condition is not satisfied; and
the predetermined condition is satisfied when a prediction is made that predetermined electric power is not to be supplied from the another power source to the control device.
3 . The power storage system according to claim 2 , wherein:
the input device is mounted on a mobile terminal that is able to be carried by the user; and
the mobile terminal is configured to display a button for accepting the input of the connection request when the predetermined condition is satisfied.