Abstract: A battery device includes a battery unit which has a plurality of batteries connected in series; first and second lines each led from a cathode and an anode of the battery unit; first and second semiconductor switch elements which are inserted into the first line; a driver configured to generate a drive signal to turn off one of the first and second semiconductor switch elements when a protective operation is performed; a third semiconductor switch element which is inserted between a gate of at least one of the first and second semiconductor switch elements and an intermediate voltage point of the battery unit; and a semiconductor switch controller including a detector configured to turn on the third semiconductor switch element when the drive signal is detected and to apply a potential smaller than a source potential to a gate of one of the first.

Abstract: A power supply device includes a photovoltaic power generator, a secondary battery unit, a charger configured to supply power from the photovoltaic power generator to the secondary battery unit, a DC-AC power conversion circuit configured to convert a discharge output of the secondary battery unit into AC power, and a control device configured to control charging of the secondary battery unit based on a load power prediction obtained by a moving average of used power and an amount of power generated by the photovoltaic power generator and perform control to switch output of the amount of power generated by the photovoltaic power generator between the secondary battery unit and a commercial system power based on a value of state of charge (SOC) of the secondary battery unit.

Abstract: A power supply control device includes a control unit, and a power path that is connected to a primary external power system. If a connection state between the primary external power system and the power path is in a disconnected state, the control unit is configured to control power output of at least one power conditioner of at least one corresponding secondary external power generation unit, based on (a) an amount of power consumption of a specific load connected to the power supply control device through the power path, and (b) a power generation output of the secondary external power generation unit.

Abstract: A battery pack supplies an electrically driven treatment apparatus with an electric driving power, and includes: a stack limiting structure; a plurality of pouch cells, wherein the pouch cells are disposed in a stack, wherein the stack is disposed within the stack limiting structure; an outer temperature sensor, wherein the outer temperature sensor is disposed and configured for measuring an outer temperature of the stack outside the stack at an edge of the stack or the stack limiting structure, and/or outside the stack limiting structure; and a control device. The control device is configured for comparison of the measured outer temperature and/or a quantity based on the measured outer temperature to at least one temperature comparative value. The at least one temperature comparative value is a function of at least one of the pouch cells. The control device is configured for controlling the battery pack in response to a result of the comparison.

Abstract: A battery device includes a battery unit which has a plurality of batteries connected in series; first and second lines each led from a cathode and an anode of the battery unit; first and second semiconductor switch elements which are inserted into the first line; a driver configured to generate a drive signal to turn off one of the first and second semiconductor switch elements when a protective operation is performed; a third semiconductor switch element which is inserted between a gate of at least one of the first and second semiconductor switch elements and an intermediate voltage point of the battery unit; and a semiconductor switch controller including a detector configured to turn on the third semiconductor switch element when the drive signal is detected and to apply a potential smaller than a source potential to a gate of one of the first and second semiconductor switch elements from the intermediate voltage point via the third semiconductor switch element.

Abstract: A power supply device includes a photovoltaic power generator, a secondary battery unit, a charger configured to supply power from the photovoltaic power generator to the secondary battery unit, a DC-AC power conversion circuit configured to convert a discharge output of the secondary battery unit into AC power, and a control device configured to control charging of the secondary battery unit based on a load power prediction obtained by a moving average of used power and an amount of power generated by the photovoltaic power generator and perform control to switch output of the amount of power generated by the photovoltaic power generator between the secondary battery unit and a commercial system power based on a value of state of charge (SOC) of the secondary battery unit.

Abstract: There is provided a power storage device including a plurality of modules each including secondary batteries, a charging switch that controls charging to the secondary batteries, a discharging switch that controls discharging of the secondary batteries, and a voltage measuring unit that measures a voltage of the module, and a switch control unit that controls one or both of the charging switch and the discharging switch. The modules are connected in parallel. The switch control unit maintains an on state of the discharging switch for at least one of the modules for a predetermined period, and controls the charging switch of the module in which a maximum module charging current estimated based on the voltage of the module is a predetermined value or less, to be in an on state.

Abstract: A power supply control device includes a control unit, and a power path that is connected to a primary external power system. If a connection state between the primary external power system and the power path is in a disconnected state, the control unit is configured to control power output of at least one power conditioner of at least one corresponding secondary external power generation unit, based on (a) an amount of power consumption of a specific load connected to the power supply control device through the power path, and (b) a power generation output of the secondary external power generation unit.

Abstract: There is provided a power storage device including a plurality of modules each including secondary batteries, a charging switch that controls charging to the secondary batteries, a discharging switch that controls discharging of the secondary batteries, and a voltage measuring unit that measures a voltage of the module, and a switch control unit that controls one or both of the charging switch and the discharging switch. The modules are connected in parallel. The switch control unit maintains an on state of the discharging switch for at least one of the modules for a predetermined period, and controls the charging switch of the module in which a maximum module charging current estimated based on the voltage of the module is a predetermined value or less, to be in an on state.

Abstract: A method of estimating the hydration reactivity of coal ash with high precision and determining the amount of milling water for obtaining a milling product in funicular form at the stage of milling; and a molding method being free from the problem of adhesion to a pressurization board at the stage of molding after the milling. When any collected coal ash exhibits a corrected basicity ((CaO+Fe2O3+MgO)/SiO2 (weight ratio)) of 0.1 or higher and a reactivity index (corrected basicity/(R2O/Al2O3) (weight ratio)) of 10 or higher, the coal ash as a raw ash is transferred to raw ash silo (2). Otherwise, the coal ash is transferred to waste ash silo (3). The raw ash within the raw ash silo (2) is poured in mill (8), and lime and gypsum are added and further milling water is charged thereto and milled.

Abstract: A method of estimating the hydration reactivity of coal ash with high precision and determining the amount of milling water for obtaining a milling product in funicular form at the stage of milling; and a molding method being free from the problem of adhesion to a pressurization board at the stage of molding after the milling. When any collected coal ash exhibits a corrected basicity ((CaO+Fe2O3+MgO)/SiO2 (weight ratio)) of 0.1 or higher and a reactivity index (corrected basicity/(R2O/Al2O3) (weight ratio)) of 10 or higher, the coal ash as a raw ash is transferred to raw ash silo (2). Otherwise, the coal ash is transferred to waste ash silo (3). The raw ash within the raw ash silo (2) is poured in mill (8), and lime and gypsum are added and further milling water is charged thereto and milled.