Abstract: Provided is a battery system including: a solar panel that generates power using solar light; a power conditioning system (PCS) for solar light that converts a direct-current power which is output from the solar panel into an alternating-current power and supplies the converted power to a power system; a secondary battery; a PCS for the secondary battery that converts direct-current power charged and discharged from the secondary battery into alternating-current power and charges and discharges the converted power to and from the power system; and a smoothing unit that calculates a target value with respect to a composite value of power which is supplied to the power system by the solar panel and the secondary battery and gives a charge and discharge command to the PCS for the secondary battery in accordance with the target value.

Abstract: Provided is a battery system including: a solar panel that generates power using solar light; a power conditioning system (PCS) for solar light that converts a direct-current power which is output from the solar panel into an alternating-current power and supplies the converted power to a power system; a secondary battery; a PCS for the secondary battery that converts direct-current power charged and discharged from the secondary battery into alternating-current power and charges and discharges the converted power to and from the power system; and a smoothing unit that calculates a target value with respect to a composite value of power which is supplied to the power system by the solar panel and the secondary battery and gives a charge and discharge command to the PCS for the secondary battery in accordance with the target value.

Abstract: An apparatus for automatically fitting runner bricks provided with a brick conveying apparatus comprising a movable gate-shaped girder, a lifting device moved by a traversing device mounted on the girder, a rotating device provided at the lower end of the lifting device and rotatable in a horizontal plane, a sliding device slidable in the horizontal direction at the lower end of the rotating device, and a gripping device provided with a vacuum-sucking device at the lower end of the sliding device, a surface plate rotating apparatus which can rotate a horizontal ingot making surface plate within a range in which the above mentioned traversing device can move, a movable work carriage loaded with bricks and a carriage position detecting apparatus which can be fixed on the work carriage running track and is provided, as required, with a brick aligning device for aligning the bricks on the uppermost step of the bricks mounted on the work carriage.