Abstract: A fuel cell system includes a fuel cell, a storage battery, a storage battery controller, an electric power demand predictor, and a fuel cell controller. The fuel cell controller calculates a full-charge necessary electric power amount, which is an amount of electric power necessary for fully charging the storage battery, by using a residual capacity and a first time, which is a time that is immediately before a time at which electric power demand becomes maximum among time at which predicted electric power demand and a fuel cell output become equal to each other. The fuel cell controller calculates a fuel cell adjustment output by dividing the full-charge necessary electric power amount by time from a present time to the first time, and controls the fuel cell with the calculated fuel cell adjustment output.

Abstract: Provided is a charging/discharging control device (100) which, for an assembled battery (10) including a plurality of storage batteries (1) connected in series, detects capacity variation among the storage batteries (1) and controls charging/discharging of the assembled battery (10). The charging/discharging control device (100) of the present invention includes a charging/discharging control unit (2) which calculates an electric-charge-quantity corresponding value which is a value corresponding to an electric charge quantity of the assembled battery (10), on the basis of a current value of the assembled battery (10), and calculates, as a voltage second-order derivative value, a value obtained through second-order differentiation of open-circuit voltage of the assembled battery (10) with respect to the electric-charge-quantity corresponding value.

Abstract: In a storage battery system charging control device, on the basis of estimated temperature data until the end of life of a storage battery calculated by a power estimation unit, an ambient temperature estimation unit, and a temperature estimation unit, and a deterioration coefficient stored in a data storage unit, a capacity retention calculation unit sequentially calculates capacity retention data with respect to each state of charge until the end of life of the storage battery, using the state of charge as a parameter. A cumulative capacity calculation unit calculates a cumulative capacity corresponding to each state of charge, on the basis of the rated capacity of the storage battery and the capacity retention data. A charging control voltage determination unit determines charging control voltage on the basis of the cumulative capacities calculated by the cumulative capacity calculation unit.

Abstract: A storage battery cooling control device includes a system power calculator (18) configured to calculate power of an external power source as power information, and a charge/discharge control unit (20) configured to perform charge/discharge control of a storage battery based on the power information, and to perform power control of a cooling device by distributing power to the cooling device within a cooling power threshold, which is determined so that a heat generation increment of the storage battery is equal to or less than a heat exhaust increment of the cooling device calculated from a cooling air flow rate.

Abstract: In a storage battery system charging control device, on the basis of estimated temperature data until the end of life of a storage battery calculated by a power estimation unit, an ambient temperature estimation unit, and a temperature estimation unit, and a deterioration coefficient stored in a data storage unit, a capacity retention calculation unit sequentially calculates capacity retention data with respect to each state of charge until the end of life of the storage battery, using the state of charge as a parameter. A cumulative capacity calculation unit calculates a cumulative capacity corresponding to each state of charge, on the basis of the rated capacity of the storage battery and the capacity retention data. A charging control voltage determination unit determines charging control voltage on the basis of the cumulative capacities calculated by the cumulative capacity calculation unit.

Abstract: A storage battery cooling control device includes a system power calculator (18) configured to calculate power of an external power source as power information, and a charge/discharge control unit (20) configured to perform charge/discharge control of a storage battery based on the power information, and to perform power control of a cooling device by distributing power to the cooling device within a cooling power threshold, which is determined so that a heat generation increment of the storage battery is equal to or less than a heat exhaust increment of the cooling device calculated from a cooling air flow rate.

Abstract: The present invention provides a storage-battery control device 1 capable of enhancing economical efficiency by controlling charge state of a storage battery 12 so that surplus power generated by photovoltaic generation can be entirely charged into the storage battery 12 even in a case where power cannot be sold to a system power supply 50.

Abstract: The present invention provides a storage-battery control device 1 capable of enhancing economical efficiency by controlling charge state of a storage battery 12 so that surplus power generated by photovoltaic generation can be entirely charged into the storage battery 12 even in a case where power cannot be sold to a system power supply 50.