Abstract:
Energy storage devices, servers, and methods for controlling the same are disclosed. The energy storage device can include at least one battery pack, a network interface configured to exchange data with a server, and a connector that receives alternating current (AC) power from an internal power network or outputs AC power to the internal power network. Energy storage device can also include a power converter configured to convert the AC power from the internal power network into direct current (DC) power based on the information about the power to store when information about power to store is received from the server, or, convert DC power stored in the battery pack into AC power based on the information about the power to output when information about power to output to the internal power network is received from the server. Accordingly, energy may be more efficiently stored.
Abstract:
A refrigerator includes a main body, a storage room defined in the main body, and a cooling device configured to cool the storage room. The refrigerator also includes a door rotatably connected to the main body and configured to open and close the storage room. The refrigerator also includes a door storage mounted to the door and having a side storage portion that is accessible when the door is open to an acute opening angle. In addition, the refrigerator includes a door locking mechanism configured to selectively lock the door at the acute opening angle at which the side storage portion is exposed between the main body and the door.
Abstract:
An energy storage device and methods for controlling the same are disclosed. The energy storage device can include a connector to or from which at least one battery pack is attached or detached, a power converter that converts external input power into DC power in a charge mode, and a switching unit that performs a switching operation such that the DC power converted by the power converter is charged in a first battery pack attached to the connector in the charge mode. Energy storage device can also include a controller that controls the switching unit to turn off electrical connections between the energy storage device and the first battery pack and a second battery pack for a predetermined off period when the first and second battery packs are attached to the connector. Accordingly, when a battery pack is attached or detached, a surge of inrush current may be reduced.
Abstract:
A refrigerator includes: a refrigerator main body having a cooling chamber; a cooling chamber door for opening and closing the cooling chamber; a shelf assembly provided within the cooling chamber such that a height thereof is adjustable; and a basket provided in any one of the refrigerator main body and the cooling chamber door such that a height thereof is adjustable. A space of the refrigerator main body or the cooling chamber door can be utilized to facilitate receiving and keeping food items.
Abstract:
Energy storage devices, servers, and methods for controlling the same are disclosed. The energy storage device can include at least one battery pack, a network interface configured to exchange data with a server, and a connector that receives alternating current (AC) power from an internal power network or outputs AC power to the internal power network. Energy storage device can also include a power converter configured to convert the AC power from the internal power network into direct current (DC) power based on the information about the power to store when information about power to store is received from the server, or, convert DC power stored in the battery pack into AC power based on the information about the power to output when information about power to output to the internal power network is received from the server. Accordingly, energy may be more efficiently stored.