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Patent

Power storing system

TLDR
In this article, a power storing system is provided with a battery 5 and a bidirectional inverter 4, which converts the AC power of commercial power supply into a direct current and the DC output of the battery 5 into an alternating current.
Abstract
PROBLEM TO BE SOLVED: To provide a power storing system which enables a user to use economical nighttime power without waste. SOLUTION: A power storing system is provided with a battery 5 and a bidirectional inverter 4, which converts the AC power of commercial power supply into a direct current and the DC output of the battery 5 into an alternating current, stores the AC power of the commercial power supply in the battery 5, and supplies the power stored to electrical equipment. The system is also provided with a control section 33, which stores several types of one-day discharge patterns of the battery 5 in advance so that the user of the system can select the patterns and controls the one-day discharge pattern of the battery 5. When the power storing system is constituted in this way, the user can effectively use economical nighttime power charged in the battery 5 without waste, because the using pattern of the nighttime power can be set in accordance with the daily living pattern of the user. Consequently, the electricity charges to the user can be reduced, and power loads can be leveled.

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Patent

Power supply system

TL;DR: In this article, the authors provided a power supply system in which a user can easily determine an optimum method of consuming power obtained by discharging a power storage portion, and a dischargeable time prediction portion (55) predicted a plurality of dischargeable times in which combinations of loads receiving power supply are different.
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TL;DR: In this paper, a power control method for a power supplying unit for supplying power from a commercial power supply and a battery to a load is proposed, which includes calculating a deviation amount between an actual power demand and a predicted power demand in a predetermined unit period on the basis of power demand transition data and power demand prediction data.
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TL;DR: In this article, a data accumulation unit (62) is used to obtain data of an amount of electric power consumed in a residence and accumulates the obtained data; a representative pattern creation unit (64) is created based on the data accumulated in the accumulation unit, the pattern representatively indicating how the electric power storage device (48) varies in state of charge for its discharging period.