Abstract: A maintenance time acquisition unit acquires a periodic inspection and maintenance time determined in advance for each of a plurality of electric vehicles, a battery remaining life prediction unit predicts a remaining life of each of storage batteries from a state of the storage battery of each of the plurality of electric vehicles, and an operation plan creation unit creates an operation plan of the plurality of electric vehicles based on the periodic inspection and maintenance time of each of the plurality of electric vehicles and the remaining life of the storage battery of each of the plurality of electric vehicles.

Abstract: A server receives, from a certain house having power outage among a plurality of houses, supply request information about a request for an electric power supply to the certain house, retrieves, with reference to a database associating the houses with a plurality of electric vehicles configured to supply electric power respectively to the houses, a candidate electric vehicle that enables the electric power supply to the certain house among the electric vehicles associated with other houses different from the certain house, transmits, to a terminal associated with the retrieved candidate electric vehicle, cooperation request information about a request for the electric power supply from the candidate electric vehicle to the certain house, and transmits, when receiving from the terminal reply information indicating acceptance of the electric power supply to the certain house, location information about a location of the certain house to the terminal.

Abstract: The server acquires first data concerning a load applied to a body of an electric mobile apparatus, acquires second data concerning the performance of a storage battery mounted on the mobile apparatus, calculates a remaining lifetime of the body on the basis of the first data, calculates a remaining lifetime of the battery on the basis of the second data, compares the remaining lifetime of the body with the remaining lifetime of the storage battery, and instructs at least one of an activation of an unused function and an enhancement of a used function among a plurality of functions consuming the electric power of the mobile apparatus when the remaining lifetime of the body is shorter than the remaining lifetime of the storage battery.

Abstract: An information processing device includes: a state information acquisition unit that acquires state information representing a state of a battery mounted on an electric device driven by the battery; an association information acquisition unit that acquires association information representing an association between the state of the battery and a deterioration rate of the battery; a deterioration information deriving unit that derives deterioration information related to the deterioration rate of the battery, based on the state information and the association information; and an output unit that outputs the deterioration information.

Abstract: An electric power control method according to an aspect of the present disclosure includes determining a control threshold value at a start of a demand time period based on a demand target value, measuring an amount of demand electric power of a customer which has received an electric power supply from an external power source and consumed electric power from the start of the demand time period to an arbitrary time point during the demand time period, updating the control threshold value based on the measured amount of demand electric power and the demand target value, and supplying electric power to the customer from a distributed power source when an instantaneous value of an electric power consumption of the customer exceeds the control threshold value during the demand time period.

Abstract: A power system stabilization method includes: receiving a power command value from a power control center that monitors a power system; transmitting the power command value to a power supply device; causing the power supply device to supply power to the power system according to the power command value; generating a prediction command value according to past power command values received from the power control center, the prediction command value being a prediction value of a power command value to be transmitted from the power control center next after the power command value; transmitting the prediction command value to a power supply device; causing the power supply device to supply power to the power system according to the power prediction command value; receiving the next power command value from the power control center; transmitting the next power command value to the power supply device.

Abstract: A charge or discharge control method includes: receiving a power instruction value with respect to a power storage apparatus; obtaining a remaining state of charge (SOC) and a target SOC which is a target value of the SOC of the power storage apparatus; controlling charge or discharge of the power storage apparatus according to the power instruction value when the power instruction value is received; wherein, in the controlling, a delay time is determined according to a difference between the target SOC and the remaining SOC, and the power storage apparatus is controlled according to the power instruction value at a timing when the delay time passes after the power instruction value is received.

Abstract: A control apparatus includes: a target value obtaining unit obtaining a total target value of power to be discharged from storage batteries; an SOH obtaining unit obtain information on a state of health for each of the storage batteries; a charge control unit determining how the power of the total target value is divided among and discharged from each of the storage battery. The charge control unit (i) compares the state of health of a first storage battery and the state of health of a second storage battery, and, in the case where the state of health of the second storage battery is higher than the state of health of the first storage battery, (ii) discharges from the second storage battery second power lower than first power which is discharged from the first storage battery.

Abstract: A method including: setting a weighting function based on an amount of change in impedance of a control target; and determining, for a power controller, a transfer function composed of a transfer function of an internal model obtainable by performing Laplace transform on the voltage reference value and a transfer function of a partial controller, the transfer function of the partial controller being for outputting the control output after receiving, as an input, an output of the transfer function of the internal model, wherein the determining includes determining the transfer function of the partial controller using an H?control theory so as to reduce (i) a first amount of control obtainable by multiplying the control output and the weighting function and (ii) a second amount of control that is an output of the transfer function of the internal model.

Abstract: Provided is a degradation state estimating method which decreases degradation in a secondary battery caused by estimating the degradation state. The degradation state estimating method is a method of estimating the degradation state of a secondary battery, includes: controlling application of current to the secondary battery; obtaining, as measurement information, at least a voltage value of the secondary battery measured while the current is flowing through the secondary battery; and estimating the degradation state of the secondary battery, based on a model for estimating the degradation state of the secondary battery and the measurement information obtained in the obtaining. In the controlling, at least one of a current value of the current and duration during which a predetermined current value is maintained is determined according to a provisional degradation state of the secondary battery.

Abstract: A power system stabilization method includes: receiving a power command value from a power control center that monitors a power system; transmitting the power command value to a power supply device; causing the power supply device to supply power to the power system according to the power command value; generating a prediction command value according to past power command values received from the power control center, the prediction command value being a prediction value of a power command value to be transmitted from the power control center next after the power command value; transmitting the prediction command value to a power supply device; causing the power supply device to supply power to the power system according to the power prediction command value; receiving the next power command value from the power control center; transmitting the next power command value to the power supply device.

Abstract: An electric power control method according to an aspect of the present disclosure includes determining a control threshold value at a start of a demand time period based on a demand target value, measuring an amount of demand electric power of a customer which has received an electric power supply from an external power source and consumed electric power from the start of the demand time period to an arbitrary time point during the demand time period, updating the control threshold value based on the measured amount of demand electric power and the demand target value, and supplying electric power to the customer from a distributed power source when an instantaneous value of an electric power consumption of the customer exceeds the control threshold value during the demand time period.

Abstract: A method for designing a control apparatus includes: determining first, second and third threshold values; setting a first weighting function for calculating a first controlled variable by being multiplied by a difference between a control target value and an output value of a storage battery, a second weighting function for calculating a second controlled variable by being multiplied by the output value of the storage battery, and a third weighting function for calculating a third controlled variable by being multiplied by an integrated value of the output value of the storage battery; and determining a transfer function of the control apparatus in accordance with an H-infinity control theory such that the first controlled variable, the second controlled variable and the third controlled variable are respectively smaller than the first, second and third threshold values.

Abstract: A power control apparatus includes: a control unit that controls discharged power of a first battery and discharged power of a second battery; and a power acquisition unit that acquires a total power to be supplied from the first and second batteries to a load device connected to the first and second batteries. The control unit: in a first period, changes the discharged power of the first battery according to a change in the acquired total power, and changes the discharged power of the second battery toward a first direction in which the discharged power of the second battery approximates the discharged power of the first battery; and, in a second period after the first period, changes the discharged power of the second battery according to the change in the acquired total power, and changes the discharged power of the first battery toward a second direction opposite the first direction.

Abstract: The control device includes: an acquisition unit which acquires voltage information indicating a voltage applied to a capacitor provided between a power generation unit and a load via first and second power supply lines, and deterioration information indicating a state of deterioration of a storage battery connected to the power generation unit; a determination unit which compares the acquired voltage information with a reference voltage so as to detect a fluctuation of the voltage, and determines power to be outputted so as to suppress the fluctuation; and an informing unit which informs the storage battery of a current value corresponding to the power to be outputted, wherein the determination unit detects the state of deterioration of the storage battery using the deterioration information, and determines power to be outputted in accordance with the state of deterioration.

Abstract: A method including: setting a weighting function based on an amount of change in impedance of a control target; and determining, for a power controller, a transfer function composed of a transfer function of an internal model obtainable by performing Laplace transform on the voltage reference value and a transfer function of a partial controller, the transfer function of the partial controller being for outputting the control output after receiving, as an input, an output of the transfer function of the internal model, wherein the determining includes determining the transfer function of the partial controller using an H?control theory so as to reduce (i) a first amount of control obtainable by multiplying the control output and the weighting function and (ii) a second amount of control that is an output of the transfer function of the internal model.

Abstract: A biometrics authentication device utilizes biometrics information and performs individual authentication enables secure modification of authorization details for an authorized agent other than the principal. A verification device verifies biometrics information registered on an IC card against biometrics information detected by a detection unit. When results in satisfactory biometrics authentication, modification of authorization details of an authorized agent, registered on the IC card, is permitted. Authorization details for an authorized agent can be securely modified on a card on which biometrics information for the principal and the authorized agent is registered.

Abstract: A charge or discharge control method includes: receiving a power instruction value with respect to a power storage apparatus; obtaining a remaining state of charge (SOC) and a target SOC which is a target value of the SOC of the power storage apparatus; controlling charge or discharge of the power storage apparatus according to the power instruction value when the power instruction value is received; wherein, in the controlling, a delay time is determined according to a difference between the target SOC and the remaining SOC, and the power storage apparatus is controlled according to the power instruction value at a timing when the delay time passes after the power instruction value is received.

Abstract: Provided is a degradation state estimating method which decreases degradation in a secondary battery caused by estimating the degradation state. The degradation state estimating method is a method of estimating the degradation state of a secondary battery, includes: controlling application of current to the secondary battery; obtaining, as measurement information, at least a voltage value of the secondary battery measured while the current is flowing through the secondary battery; and estimating the degradation state of the secondary battery, based on a model for estimating the degradation state of the secondary battery and the measurement information obtained in the obtaining. In the controlling, at least one of a current value of the current and duration during which a predetermined current value is maintained is determined according to a provisional degradation state of the secondary battery.

Abstract: The electric power conditioning device, connected to an apparatus and an electric storage device in a house, comprises an electric power receiving section, a communication section and an operation section. The electric power receiving section, connected to a commercial power supply, acquires a total electric power consumption amount of the commercial power supply. The operation section makes comparison as to whether an integrated value obtained by integrating the total electric power consumption amount and an electric power consumption amount which is an amount of electric power expected to be consumed when the apparatus is operated exceeds a predetermined value. When the integrated value does not exceed, the operation section transmits a use permission signal to the apparatus via the communication section. When the integrated value exceeds, the electric power conditioning device transmits to the electric storage device a supply electric power inquiring signal via the communication section.