Abstract: An object is to improve safety. Provided is a power storage system including a battery apparatus 1; a power converter 2 provided between the battery apparatus 1 and a load 3 and that can control power supplied from the battery apparatus 1 to the load 3; and a battery monitoring circuit 4 that detects an abnormality in the battery apparatus 1. When an abnormality in the battery apparatus 1 is detected by the battery monitoring circuit 4, the power converter 2 supplies power stored in the battery apparatus 1 to the load 3 or to an internally provided internal load at or below a current value or power value that is set in advance, or alternatively, at a current value or power value that the load 3 demands, within a range that does not exceed an upper limit that is set in advance.

Abstract: A battery pack includes: a battery unit in which a plurality of battery modules with a plurality of secondary batteries connected in series to each other is connected in parallel to each other so that output current; and a battery management unit. The battery management unit calculates a first allowable current value of each of the plurality of battery modules and calculates second allowable current values of the other battery modules based on the first allowable current value of one battery module from the plurality of battery modules. The battery management unit calculates a value corresponding to the sum of the first allowable current value used as the reference and the respective second current values as an allowable current value when each of the second allowable current values is equal to or smaller than the first allowable current value of the corresponding battery module.

Abstract: The battery state-of-charge calculation device (100) is provided with a SOCV calculation unit (5) which outputs a first state of charge calculated based on voltage data, a SOCI calculation unit (6) which outputs a second state of charge calculated based on current data, an estimated impedance voltage calculation unit (12) which calculates an impedance voltage value based on an effective state of charge and the current data, a static determination unit (7) which determines that the impedance voltage value remains static for a predetermined time or longer in a range identified by a predetermined threshold value and outputs the determination result; and a SOC decision unit (20) which, based on the determination result, outputs the first state of charge as the effective state of charge where the impedance voltage value is static and outputs the second state of charge as the effective state of charge where the impedance voltage value is not static.

Abstract: A voltage equalization device of a power storage device provided with battery packs in which a plurality of secondary cells are connected, power converters provided in association with the battery packs, and controllers that control the power converters, and in which the battery packs are connected in parallel via the individual power converters includes a decision portion and a voltage-adjusting portion. The decision portion obtains battery-pack information regarding the states of charge/discharge of the individual battery packs and decides, for each battery pack, whether or not to perform voltage adjustment on the basis of the battery-pack information. When the decision portion decides that the voltage adjustment is to be performed, the voltage-adjusting portion generates offset instructions for adjusting the states of charge/discharge and outputs the offset instructions to the controllers of the power converters associated with the battery packs.

Abstract: A battery apparatus includes a row battery group including a plurality of series-connected row batteries including one or more battery cells; a plurality of battery management sections, corresponding to the individual row batteries, for managing the battery statuses of the corresponding row batteries; a central management section for granting unique identification information to the individual battery management sections and acquiring information about the battery statuses of the row batteries from the respective battery management sections for management; second communication lines with which the plurality of battery management sections are daisy-chained; a first communication line with which, of the plurality of battery management sections, the battery management section located at one end is connected to the central management section; and a plurality of connection switching sections, provided in the individual second communication lines between the battery management sections, for switching the connection

Abstract: Safety is ensured even when installed in mobile objects such as electric vehicles, deep-sea explorers, and so on. A battery module (10) provided with a plurality of battery packs (13) and a unit battery container (14) that houses these battery packs (13), wherein the unit battery container (14) includes a top-half housing (18), which is a lid, and a bottom-half housing (19) where the battery packs (13) are mounted, and wherein through-holes are formed in the bottom-half housing (19) so as to penetrate in the plate-thickness direction thereof at positions that face center portions of lower surfaces of the individual battery packs (13); branch pipes (23) are individually connected to the individual through-holes; these branch pipes (23) are connected to a single main pipe (25) that is provided with a liquid-leakage detecting sensor (24) at one end thereof; and the liquid-leakage detecting sensor (24) is connected to a liquid-leakage detecting device (27) via a signal cable (26).

Abstract: A secondary cell control system includes a plurality of cells; a charging circuit section and a discharging circuit section. The charging circuit section charges cells selected from among said plurality of cells, and the discharging circuit section discharges cells selected from among said plurality of cells.

Abstract: In order to identify whether each of the cells in a storage battery system is available, the storage battery system is equipped with secondary cell packs, information storage parts which are respectively installed to the secondary cell packs to store cell information on the respective secondary cell packs, and monitor device which judges whether loading to the storage battery system is possible according to the cell information stored in the information storage part.

Abstract: An object is to reliably conduct cell balancing operation while suppressing deterioration of batteries and maintaining operating efficiency. When the cell balance control by the cell balancing circuit 3 is started, the system control device 30 sets an on/off device corresponding to the arm where the cell balance control is conducted to the open state; and when the cell balance control is completed, and the difference between the terminal voltage of a battery pack of the arm where the cell balance control has been conducted and the terminal voltages of the battery packs of the other arms falls within a preset allowable range, sets the on/off device, which has been in the open state, to the closed state.

Abstract: It is an object to provide a battery system whose life can be extended. A cell pack having at least one lithium secondary battery that uses a manganese-based cathode material and a control unit that controls charging and discharging of the cell pack are provided, and the control unit controls charging and discharging within a low-degradation voltage range that is set on the basis of a target cell degradation rate.

Abstract: Disclosed is a cell container offering improved vibration resistance and improved shock resistance as well as maintaining the battery performance and ensuring the reliability. Specifically disclosed is a cell container comprising: an insulative case (31) in which a plurality of unit cells are placed side by side; insulative wall portions (34) for partitioning between the plurality of unit cells; and support projections (35) projecting from at least either one of the case (31) or the wall portions (34) toward the unit cells to support the unit cells.

Abstract: It is an object to effectively output electrical energy of a storage battery to an electrical power system serving as a whole distributed power supply system by effectively utilizing the electrical energy within a charging ratio range that does not cause overcharging or overdischarging of the storage battery. In a hybrid distributed power supply system, the target supply electrical power is set based on the electrical power generation output of the electrical power generator and the charging state of the storage battery, and the target supply electrical power is restricted within a predetermined permissible supply electrical power range when the target supply electrical power deviates from the predetermined permissible supply electrical power range.

Abstract: An object is to improve safety. Provided is a power storage system including a battery apparatus 1; a power converter 2 provided between the battery apparatus 1 and a load 3 and that can control power supplied from the battery apparatus 1 to the load 3; and a battery monitoring circuit 4 that detects an abnormality in the battery apparatus 1. When an abnormality in the battery apparatus 1 is detected by the battery monitoring circuit 4, the power converter 2 supplies power stored in the battery apparatus 1 to the load 3 or to an internally provided internal load at or below a current value or power value that is set in advance, or alternatively, at a current value or power value that the load 3 demands, within a range that does not exceed an upper limit that is set in advance.

Abstract: A data processing system including: a memory controller; and a memory connected to said memory controller; wherein said memory controller includes a rendering circuit thereby to execute a rendering command generating display data based on graphic data provided after processing a program in a CPU, and stores said display data in said memory.

Abstract: A data processing system including: a memory controller; and a memory connected to said memory controller; wherein said memory controller includes a rendering circuit thereby to execute a rendering command generating display data based on graphic data provided after processing a program in a CPU, and stores said display data in said memory.

Abstract: A graphic processing apparatus for generating, display or printing characters and graphic data. A successive column access is used in which a row address is designated for access to a memory and data in different column address within the designated same row address are successively accessed and buffer means for buffering a series of data between an access by a processor and an access to a memory is provided. A program and image information for display are stored in a main memory. A frame buffer and the main memory are integrally configured simply and small in size.

Abstract: A graphic processing apparatus for generating, displaying or printing characters and graphic data. A successive column access is used in which a row address is designated for access to a memory and data in different column addresses within the designated same row address are successively accessed and buffer means for buffering a series of data between an access by a processor and an access to a memory is provided. A program and image information for display are stored in a main memory. A frame buffer and the main memory are integrally configured simply and small in size.

Abstract: A graphic processing apparatus for generating, display or printing characters and graphic data. A successive column access is used in which a row address is designated for access to a memory and data in different column address within the designated same row address are successively accessed and buffer means for buffering a series of data between an access by a processor and an access to a memory is provided. A program and image information for display are stored in a main memory. A frame buffer and the main memory are integrally configured simply and small in size.

Abstract: A graphic processing apparatus for generating, displaying or printing characters and graphic data. A successive column access is used in which a row address is designated for access to a memory and data in different column addresses within the designated same row address are successively accessed and buffer means for buffering a series of data between an access by a processor and an access to a memory is provided. A program and image information for display are stored in a main memory. A frame buffer and the main memory are integrally configured simply and small in size.

Abstract: A graphic processing apparatus for generating, displaying or printing characters and graphic data. A successive column access is used in which a row address is designated for access to a memory and data in different column addresses within the designated same row address are successively accessed and buffer means for buffering a series of data between an access by a processor and an access to a memory is provided. A program and image information for display are stored in a main memory. A frame buffer and the main memory are integrally configured simply and small in size.