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    • 1. 发明专利
    • Storage battery control system and storage battery control method
    • 存储电池控制系统和存储电池控制方法
    • JP2011234563A
    • 2011-11-17
    • JP2010104146
    • 2010-04-28
    • Toshiba CorpToshiba Mitsubishi-Electric Industrial System Corp東芝三菱電機産業システム株式会社株式会社東芝
    • NAOI SHINYANORO YASUHIROOWADA KOJIKAWAKAMI NORIKOOTA SATORUIIJIMA YUKIHISA
    • H02J3/32H01M10/44H01M10/48H02J3/38
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide a storage battery control device and a storage battery control method that are actualized at low cost by suppressing a width of output variation per unit time of an electric generator and also reducing a watt-hour capacity of a storage battery.SOLUTION: The storage battery control system comprises: an electric generator 3 linked to an electric power system, a storage battery 4 for short-period smoothing; one or more storage batteries 5 for long-period smoothing; a short-period smoothing command computing unit 21 which generates a smoothing command signal for smoothing short-period output variation; a long-period smoothing command computing unit 31 which generates a second smoothing command signal for smoothing long-period output variation, an output controller 24 which controls the charging and discharging amount of the storage battery 4; and an output controller 34 which controls the charging and discharging amount of the storage battery 5. The output controller 24 controls the charging and discharging amount of the storage battery 4 when the storage battery 5 can not follow the control of the output controller 34 so as to compensate for a charging and discharging amount by which the storage battery 5 can not follow, and the output controller 34 controls the charging and discharging amount of the storage battery 5 when the storage battery 4 can not follow the control of the output controller 24 so as to compensate for a charging and discharging amount by which the storage battery 4 can not follow.
    • 要解决的问题:提供一种通过抑制发电机的每单位时间的输出变化的宽度而以低成本实现的蓄电池控制装置和蓄电池控制方法,并且还降低了发电机的电力容量 一个蓄电池。 解决方案:蓄电池控制系统包括:与电力系统连接的发电机3,用于短周期平滑的蓄电池4; 一个或多个用于长周期平滑的蓄电池5; 短周期平滑指令运算部21,生成用于平滑短周期输出变化的平滑指令信号; 生成用于平滑长周期输出变化的第二平滑指令信号的长周期平滑指令计算单元31,控制蓄电池4的充放电量的输出控制器24; 以及控制蓄电池5的充放电量的输出控制器34.当蓄电池5不能跟随输出控制器34的控制时,输出控制器24控制蓄电池4的充放电量, 以补偿蓄电池5不能跟随的充放电量,并且当蓄电池4不能跟随输出控制器24的控制时,输出控制器34控制蓄电池5的充电和放电量 以补偿蓄电池4不能跟随的充放电量。 版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • VOLTAGE-TYPE SELF-EXCITED POWER CONVERSION APPARATUS
    • JPH0974768A
    • 1997-03-18
    • JP23087295
    • 1995-09-08
    • TOSHIBA CORP
    • IIJIMA YUKIHISAKANEKO HIROSHI
    • H02M7/48
    • PROBLEM TO BE SOLVED: To stably restart a voltage-type self-excited power conversion apparatus after the apparatus has been stopped temporarily by a method wherein, when a DC voltage becomes a rated voltage or lower, electric power is accommodated to a DC capacitor from a charger via a reverse-current prevention diode and the DC voltage is maintained at a rated DC voltage. SOLUTION: A series circuit which is composed of a reverse-current prevention diode and of a charger 10 provided with a battery 10A and with a current- limiting resistance 10B is connected in parallel with a DC capacitor 5 which is connected across DC terminals of a power converter 2. Then, when the power converter 2 is stopped temporarily due to a reduction in the control amount of effective power or reactive power or due to the abnormality of an AC system 1 so as to drop the voltage of the DC capacitor 5, electric power is accommodated to the DC capacitor 5 from the charger 10, and a voltage is maintained at a DC rated voltage which is required to operate the power converter 2. Thereby, the power converter 2 is set to a state that it can be always restarted, and the linkage operation of the AC system 1 with the power converter 2 can be performed smoothly.
    • 4. 发明专利
    • VOLTAGE-TYPE SELF-EXCITED CONVERTER
    • JPH1094262A
    • 1998-04-10
    • JP24080196
    • 1996-09-11
    • TOSHIBA CORP
    • IIJIMA YUKIHISA
    • H02M1/08H02M7/48H02M7/515
    • PROBLEM TO BE SOLVED: To provide a converter that does not contain higher harmonic components other than integral multiples of the voltage fundamental frequency of an alternatingcurrent system. SOLUTION: When a voltage source 3 is connected between the direct current terminals on a voltage-type self-excited converter 4 and its alternating current terminals are connected with an alternating-current system 1 through an impedance element 2, a digital current control means 14A calculates an output current command to the converter 4 with specified timing based on the deviation between a detected value of the output current of the converter 4 and a preset value. Further, a pulse pattern determining means 17 compares the current command from the digital current controlling means 14A and a triangular wave from a triangular wave generating means, and determines an on/off pattern of a self-extinguishing switching element. At this time the digital current controlling means 14A calculates the output current command to the converter 4 with timing synchronized with the triangular-wave signals from the triangular wave generating means.