Panasonic Intellectual Property Management Co., Ltd.

Sanyo Electric Co., Ltd.

Yasuo Okuda

Toshiya Iwasaki

Souichi Sakai

Mamoru Kubo

Kazuaki Okamoto

Yousuke Ohtsuki

Ryuzo Hagihara

Tsuyoshi Maeda

Takeshi Nakashima

Hirotsugu Murashima

Kazuyoshi Tsukamoto

Kazufumi Nishikawa

Youichiro Nishikawa

Takafumi Nakayama

Hayato Ikebe

Yuuki Hirata

Fumio Yasutomi

Hirotsugu Furutate

Takuji Sugata

Yasuhiro Oue

Munenori Kishi

Seiichi Nishimura

Atsushi Ouchi

Ken Yamada

To provide a power supply system equipped with a storage battery assembly including a plurality of storage battery control units, the power supply system being configured such that a group of the storage battery control units, which are selected from the storage battery control units, and which have output voltages within a predetermined voltage range, are first connected to the parallel connection line, and such that the voltage range is set so as to maximize the number of the storage battery control units having output voltages within the voltage range.

Power supply system

A rechargeable battery system includes: a first battery pack; and a second battery pack in a daisy chain connection with the first battery pack to form a communication path, the second battery pack consuming a larger power for communication than a power consumed in the first battery pack for communication. A power consumed in the second battery pack for an additional process other than communication is smaller than power consumed in the first battery pack for the additional process.

Rechargeable battery system and method of controlling power consumption

In a control device configured to control power to be supplied to a specific load from at least one of a converter that has a power generator and a storage battery, and a commercial power supply, the control device determines whether the commercial power supply is in a power failure state or a power distribution state, in which: when determining that the commercial power supply is in a power distribution state, the control device causes both of the converter and the commercial power supply to be connected to the specific load; and when determining that the commercial power supply has made a transition from a power distribution state to a power failure state, the control device causes the commercial power supply to be disconnected from the specific load while maintaining the connection between the converter and the specific load.

Control device, conversion device, control method, and electricity distribution system

A rechargeable battery management unit (controller) controls a plurality of battery packs. A communication path connects the rechargeable battery management unit and the plurality of battery packs in a daisy chain for packet communication and representing a ring topology. The rechargeable battery management unit sends a fixed-length packet divided into segments so as to flow in one direction on the management data communication path, the number of segments being equal to or more than the number of battery packs. Each of the plurality of battery packs stores data related to the battery pack in a segment assigned to the battery pack in the fixed-length packet received from a battery pack preceding in the management data communication path and sends the fixed-length packet to a succeeding battery pack.

Rechargeable battery system including controller and battery backs in daisy chain communication path

A detection unit determines whether a commercial power supply is in a power failure state or a power distribution state. A power source connection management unit controls whether a solar cell is to be connected to a first power conditioner connected to a storage battery or to be connected to the commercial power supply via a second power conditioner. A load connection controller controls connection of the first power conditioner, commercial power supply, and a load. When the commercial power supply is in a power distribution state, the power source connection management unit does not cause the solar cell to be connected to the first power conditioner but connected to the commercial power supply via the second power conditioner, and the load connection controller causes the first power conditioner and the commercial power supply to be connected to the load.

Control device and power distribution system

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.

Charge/discharge control apparatus

A master controller of a battery charge and discharge control apparatus is a device performing charge and discharge control on a group of a predetermined number of battery arrays, the battery arrays being connected together in parallel. The master controller acquires an entire charge or discharge instruction intended for the entire battery array group, starts charging or discharging each of the battery arrays at a uniform charge or discharge power value, acquires a charge or discharge status of each of the battery arrays after the beginning of the charge or discharge and compares the charge or discharge status with a predetermined charge or discharge set value for the entire battery array group, and changes the charge or discharge power value of each of the battery arrays based on a result of the comparison.

Battery charge and discharge control apparatus and method for controlling battery charge and discharge

Provided is a power management system capable of controlling charge and discharge of storage batteries according to power requirement of load even when handling electric power of large scale. A system controller receives load-related information data including the power requirement of load and storage battery-related information data including a state of a storage battery assembly including multiple storage batteries and creates an overall charge-discharge control instruction for the entire power management system based on the load-related information data and the storage battery-related information data. A hierarchical charge-discharge control apparatus receives the overall charge-discharge control instruction from the system controller and performs charge-discharge control of the multiple storage batteries, classified into hierarchical levels, on a hierarchical level basis.

Power management system

A personal design system according to the present invention designs the appearance of an equipment suiting the sensibility and the physical features of a user by establishing data communication between a user terminal comprising a user information inputting section and a server on the side of a producer. The user inputs user information such as the sensibility and the physical features of the user corresponding to the designed appearance of the equipment using the user information inputting section. The equipment having the designed appearance intended by the user is produced on the basis of the inputted user information and a database provided in the server by designing means provided in the user terminal.

Growing community of inventors

Kyoto, Japan

Yasuo Okuda