Abstract: The power conditioner determines possible total power and working individual power to be in a range that possible individual power of each of the power supply units is not exceeded. The possible total power is determined from the possible individual power, of each of the power supply units, determined based on the battery information detected by each of the unit controllers, collected by a master controller from each of the unit controllers. The working individual power is determined based on a power deviation indicating a difference of charging and discharging power between the power supply units. The power conditioner causes charging and discharging of each of the power supply units within the calculated working individual power.

Abstract: A managing device calculates a whole state of power (SOP) that is an SOP of a whole of the plurality of power storage blocks based on SOPs of the respective power storage blocks and currents flowing through the respective power storage blocks, and sets an upper limit value of power or a current for at least one of charging and discharging by a power converter, based on the whole SOP thus calculated. The managing device estimates a current flowing through each of the power storage blocks from a voltage and an internal resistances of each of the power storage blocks before the power converter starts power conversion.

Abstract: In a power storage system, a management device calculates a state of power (SOP) of a whole of a plurality of power storage blocks connected in parallel based on an SOP of each of the plurality of power storage blocks to specify the calculated SOP of the whole for an upper limit level of power or current for at least one of charging and discharging controlled by a power converter. When at least one of a plurality of switches is turned off to disconnect at least one (30) of the plurality of power storage blocks, the management device calculates an SOP of a whole of the remaining power storage blocks based on a deviation in current between each of the remaining power storage blocks to determine an upper limit level of power or current flowing into the power converter.

Abstract: A power storage unit includes a plurality of power storage module groups connected in parallel, each having a plurality of power storage modules connected in series or in series and parallel. A plurality of temperature adjustment units is installed in each of the power storage module groups constituting the power storage unit, and cools or heats the power storage module groups. A management unit controls the plurality of temperature adjustment units corresponding to each of the power storage module groups to make resistances of the plurality of power storage module groups come close.

Abstract: In a power storage system, a management device calculates a state of power (SOP) of a whole of a plurality of power storage blocks connected in parallel based on an SOP of each of the plurality of power storage blocks. At least one of the plurality of power storage blocks is disconnected from the power storage system, and when at least one switch is turned on to return at least one disconnected power storage block to the power storage system having the parallel-connected power storage blocks, the management device calculates an SOP of a whole of the power storage blocks after a return of the at least one power storage block based on a deviation in current between each of the power storage blocks including the at least one returned power storage block to determine an upper limit level of power or current flowing into a power converter.

Abstract: A power storage unit includes a plurality of power storage module groups connected in parallel, each having a plurality of power storage modules connected in series or in series and parallel. A plurality of temperature adjustment units is installed in each of the power storage module groups constituting the power storage unit, and cools or heats the power storage module groups. A management unit controls the plurality of temperature adjustment units corresponding to each of the power storage module groups to make resistances of the plurality of power storage module groups come close.

Abstract: The power conditioner determines possible total power and working individual power to be in a range that possible individual power of each of the power supply units is not exceeded. The possible total power is determined from the possible individual power, of each of the power supply units, determined based on the battery information detected by each of the unit controllers, collected by a master controller from each of the unit controllers. The working individual power is determined based on a power deviation indicating a difference of charging and discharging power between the power supply units. The power conditioner causes charging and discharging of each of the power supply units within the calculated working individual power.

Abstract: A managing unit (50m) calculates a whole state of power (SOP) that is an SOP of a whole of the plurality of power storage blocks (10 to 30) based on SOPs of the respective power storage blocks (10 to 30) and currents flowing through the respective power storage blocks (10 to 30), and sets an upper limit value of power or a current for at least one of charging and discharging by a power converter (60), based on the whole SOP thus calculated. The managing unit (50m) estimates a current flowing through each of the power storage blocks (10 to 30) from a voltage and an internal resistances of each of the power storage blocks (10 to 30) before the power converter (60) starts power conversion.

Abstract: In a power storage system, a management device calculates a state of power (SOP) of a whole of a plurality of power storage blocks connected in parallel based on an SOP of each of the plurality of power storage blocks to specify the calculated SOP of the whole for an upper limit level of power or current for at least one of charging and discharging controlled by a power converter. When at least one of a plurality of switches is turned off to disconnect at least one (30) of the plurality of power storage blocks, the management device calculates an SOP of a whole of the remaining power storage blocks based on a deviation in current between each of the remaining power storage blocks to determine an upper limit level of power or current flowing into the power converter.

Abstract: In a power storage system, a management device calculates a state of power (SOP) of a whole of a plurality of power storage blocks connected in parallel based on an SOP of each of the plurality of power storage blocks. At least one of the plurality of power storage blocks is disconnected from the power storage system, and when at least one switch is turned on to return at least one disconnected power storage block to the power storage system having the parallel-connected power storage blocks, the management device calculates an SOP of a whole of the power storage blocks after a return of the at least one power storage block based on a deviation in current between each of the power storage blocks including the at least one returned power storage block to determine an upper limit level of power or current flowing into a power converter.

Abstract: A power storage unit includes a plurality of power storage module groups connected in parallel, each having a plurality of power storage modules connected in series or in series and parallel. A plurality of temperature adjustment units is installed in each of the power storage module groups constituting the power storage unit, and cools or heats the power storage module groups. A management unit controls the plurality of temperature adjustment units corresponding to each of the power storage module groups to make resistances of the plurality of power storage module groups come close.

Abstract: A charge and discharge control device includes: a coordination unit which generates coordination information for calculating an output value which each storage battery is caused to output, based on a bus voltage value and a target voltage value; a string output calculating unit which calculates, based on the coordination information, an output target value indicating the output value which the storage battery is caused to output to maintain the bus voltage value at the target voltage value; and a control unit which causes, among the storage batteries, a storage battery corresponding to the calculated output target value to output an output having a magnitude indicated by the calculated output target value, wherein the coordination unit generates the coordination information to avoid simultaneous presence of a storage battery that outputs an output in a charge direction and a storage battery that outputs an output in a discharge direction.

Abstract: A storage battery system includes: electric storage units; and DC-DC converters each provided between one of the electric storage units and a DC bus. Each of the DC-DC converters includes: a voltage sensor for detecting a voltage value at a connection point between the DC bus and the DC-DC converter; a second obtainment unit which obtains voltage values detected by the voltage sensors of the other DC-DC converters; and a control unit which, when a difference value between a statistic of the voltage values obtained by the second obtainment unit and the voltage value detected by the voltage sensor is not less than a predetermined threshold value, changes the voltage value detected by the voltage sensor, and controls an amount of charge in and an amount of discharge from a corresponding one of the electric storage units to approximate the changed voltage value to a predetermined target value.

Abstract: A battery module group includes a plurality of battery groups. Each battery group includes a plurality of battery modules. Cell information is supplied from each battery module of the battery module group to a charge/discharge controller. The charge/discharge controller controls the turning on and off of a plurality of switching elements of a connector based on the supplied cell information of each battery module. The plurality of switching elements correspond to the plurality of battery groups, respectively. Thus, the plurality of battery groups are selectively connected to an external object via a DC/AC converter.

Abstract: An estimation unit estimates the amount of power consumption for each unit period of time. A rechargeable battery control unit controls the rechargeable battery such that an exceeding amount of power worth the amount of power exceeding a target amount of power during a unit period of time is charged into the battery, and power is discharged from the battery during a time zone wherein the target amount of power is exceeded, on the basis of the result of the estimation. When the battery needs to be charged in excess of the upper-limit value, the control unit charges the battery up to the upper-limit value during a time zone wherein the amount of power consumption estimated is light, and the amount of power that exceeds the upper-limit value is charged during a time zone that is close to the time zone wherein the target amount of power is exceeded.

Abstract: A storage battery system includes: electric storage units; and DC-DC converters each provided between one of the electric storage units and a DC bus. Each of the DC-DC converters includes: a voltage sensor for detecting a voltage value at a connection point between the DC bus and the DC-DC converter; a second obtainment unit which obtains voltage values detected by the voltage sensors of the other DC-DC converters; and a control unit which, when a difference value between a statistic of the voltage values obtained by the second obtainment unit and the voltage value detected by the voltage sensor is not less than a predetermined threshold value, changes the voltage value detected by the voltage sensor, and controls an amount of charge in and an amount of discharge from a corresponding one of the electric storage units to approximate the changed voltage value to a predetermined target value.

Abstract: A battery module group includes a plurality of battery groups. Each battery group includes a plurality of battery modules. Cell information is supplied from each battery module of the battery module group to a charge/discharge controller. The charge/discharge controller controls the turning on and off of a plurality of switching elements of a connector based on the supplied cell information of each battery module. The plurality of switching elements correspond to the plurality of battery groups, respectively. Thus, the plurality of battery groups are selectively connected to an external object via a DC/AC converter.

Abstract: A charge and discharge control device includes: a coordination unit which generates coordination information for calculating an output value which each storage battery is caused to output, based on a bus voltage value and a target voltage value; a string output calculating unit which calculates, based on the coordination information, an output target value indicating the output value which the storage battery is caused to output to maintain the bus voltage value at the target voltage value; and a control unit which causes, among the storage batteries, a storage battery corresponding to the calculated output target value to output an output having magnitude indicated by the calculated output target value, wherein the coordination unit generates the coordination information to avoid simultaneous presence of a storage battery that outputs an output in a charge direction and a storage battery that outputs an output in a discharge direction.

Abstract: A cooling system is provided in which an integrated controller 10 controls the compressor for compressing a refrigerant and at least one constituent device which is a separate device from the compressor and that constitutes a refrigerant circulation circuit together with the compressor. The integrated controller 10 has a control data generation unit 16 that controls the compressor using a compressor sensor for detecting a first physical value, which is a physical value of the refrigerant at the time of normal operations, and an abnormality detection unit 13 for detecting an abnormality of the compressor sensor. The control data generation unit 16 controls the compressor using a constituent device sensor for detecting a second physical value that is a physical value having a close correlation with the first physical value in place of the compressor sensor when the abnormality was detected by the abnormality detection unit 13.

Abstract: A cooling system is provided in which an integrated controller 10 controls the compressor for compressing a refrigerant and at least one constituent device which is a separate device from the compressor and that constitutes a refrigerant circulation circuit together with the compressor. The integrated controller 10 has a control data generation unit 16 that controls the compressor using a compressor sensor for detecting a first physical value, which is a physical value of the refrigerant at the time of normal operations, and an abnormality detection unit 13 for detecting an abnormality of the compressor sensor. The control data generation unit 16 controls the compressor using a constituent device sensor for detecting a second physical value that is a physical value having a close correlation with the first physical value in place of the compressor sensor when the abnormality was detected by the abnormality detection unit 13.