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    • 1. 发明专利
    • Apparatus and method for controlling charge of nas battery
    • 用于控制NAS电池充电的装置和方法
    • JP2012085374A
    • 2012-04-26
    • JP2010226906
    • 2010-10-06
    • Tokyo Electric Power Co Inc:TheTokyo Institute Of Technology国立大学法人東京工業大学東京電力株式会社
    • SUZUKI KENICHIMIYAZAKI SATOSHIMORIKAWA HIROKIAKAGI YASUBUMI
    • H02J7/02H01M10/44
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide auxiliary charge control of a NAS battery which can ensure an optimum charge amount to each NAS battery of a NAS battery system in which a plurality of power converters connected in parallel with NAS batteries are cascade-connected to each of three phases.SOLUTION: A main control device 14 performs a main charge until any one of the NAS batteries of the entire NAS battery system reaches a charge stop voltage. Each phase control device 15R, 15S, 15T performs auxiliary charge control on the NAS battery 12 reaching the charge stop voltage over a predetermined number of times with graduated power lower than that for the main charge as counting the number of auxiliary charges of each cascade-connected NAS battery 12 of the corresponding phase, and when the difference of the number of auxiliary charges of the NAS battery 12 from the number of auxiliary charges of any other NAS battery of the corresponding phase becomes a predetermined value or greater, forcibly increments by one the number of auxiliary charges of the NAS battery 12 having the smallest count number in performing auxiliary charges to the predetermined number of times.
    • 要解决的问题:为了提供能够确保与NAS电池并联连接的多个电力转换器的NAS电​​池系统的每个NAS电池的级联连接的NAS电​​池的辅助充电控制 分为三个阶段。

      解决方案:主控制装置14执行主电荷,直到整个NAS电池系统的任何一个NAS电池达到充电停止电压。 每个相位控制装置15R,15S,15T对分级功率低于主充电的预定次数的NAS电​​池12进行辅助充电控制,其次数是对每个级联的辅助电荷的数量进行计数, 连接NAS电池12,并且当NAS电池12的辅助电荷数与相应相位的任何其他NAS电池的辅助电荷数之间的差异变为预定值或更大时,强制递增1 在执行辅助电荷时具有最小计数数的NAS电​​池12的辅助电荷数达到预定次数。 版权所有(C)2012,JPO&INPIT

    • 2. 发明专利
    • Output stabilization apparatus for photovoltaic power generation equipment
    • 用于光伏发电设备的输出稳定装置
    • JP2012085375A
    • 2012-04-26
    • JP2010226907
    • 2010-10-06
    • Tokyo Electric Power Co Inc:TheTokyo Institute Of Technology国立大学法人東京工業大学東京電力株式会社
    • SUZUKI KENICHIMIYAZAKI SATOSHIMORIKAWA HIROKIAKAGI YASUBUMI
    • H02J3/01H02J3/32H02J7/35H02M7/48H02M7/493
    • Y02E10/566Y02E70/30
    • PROBLEM TO BE SOLVED: To provide an output stabilization apparatus for photovoltaic power generation equipment that can suppress a supply of pulsations included in output power of photovoltaic power generation equipment to a three-phase AC system.SOLUTION: Power converters 15 with secondary batteries or capacitors connected in parallel are cascade-connected to each phase of a connection end of a three-phase AC system 11 with photovoltaic power generation equipment 12 interconnected to constitute two cascade converter systems 14A, 14B. A NAS battery 16 is connected between neutral points of the two cascade converter systems 14A, 14B. A control device 17 takes a part including pulsations out of output power of the photovoltaic power generation equipment 12 to the three-phase AC system 11, into the two cascade converter systems 14A, 14B, and controls the power converters 15 of the two cascade converter systems 14A, 14B such that the secondary batteries or capacitors are charged with/discharged of short period pulsations of the captured power to average the power and that the NAS battery 16 is charged with the averaged power.
    • 要解决的问题:提供一种用于光伏发电设备的输出稳定装置,其可以抑制包括在光伏发电设备的输出功率中的脉动供应到三相AC系统。 解决方案:具有并联连接的二次电池或电容器的电力变换器15与互连的光伏发电设备12级联连接到三相AC系统11的连接端的每个相,构成两个级联变换器系统14A, 14B。 NAS电池16连接在两个级联变换器系统14A,14B的中性点之间。 控制装置17将包含光伏发电装置12的输出功率的脉动的部分从三相交流系统11取入到两个级联变换器系统14A,14B中,并且控制两个级联变换器 系统14A,14B,使得二次电池或电容器对捕获的功率的短周期脉动进行充电/放电,以平均功率,并且对NAS电池16进行平均功率的充电。 版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • Photovoltaic power generation equipment
    • 光伏发电设备
    • JP2012085373A
    • 2012-04-26
    • JP2010226905
    • 2010-10-06
    • Tokyo Electric Power Co Inc:TheTokyo Institute Of Technology国立大学法人東京工業大学東京電力株式会社
    • SUZUKI KENICHIMIYAZAKI SATOSHIMORIKAWA HIROKIAKAGI YASUBUMI
    • H02M7/48H01L31/04H02J3/38H02M7/493
    • Y02E10/563
    • PROBLEM TO BE SOLVED: To provide photovoltaic power generation equipment that can supply output power with suppressed pulsations to a three-phase AC system.SOLUTION: Power converters 14 with secondary batteries or capacitors connected in parallel are cascade-connected to each phase of a three-phase AC system to constitute two cascade converter systems 13A, 13B. A solar battery 15 is connected between neutral points of the two cascade converter systems. A control device 16 circulates a fluctuation of an output current of the solar battery 15 whose operating point is controlled to an optimum operating point for taking out maximum power through a DC loop of the two cascade converter systems 13A, 13B, and controls the power converters 14 of the two cascade converter systems 13A, 13B such that the secondary batteries or capacitors are charged with/discharged of the fluctuation of power to average output power and that the averaged output power is output to the three-phase AC system 11.
    • 要解决的问题:提供能够向三相交流系统提供具有抑制脉动的输出功率的光伏发电设备。 解决方案:并联的二次电池或电容器的电力转换器14级联连接到三相AC系统的每个相,以构成两个级联转换器系统13A,13B。 太阳能电池15连接在两个级联变换器系统的中性点之间。 控制装置16将其工作点被控制的太阳能电池15的输出电流的波动循环到用于通过两个级联变换器系统13A,13B的DC环路取出最大功率的最佳工作点,并且控制功率转换器 两个级联变换器系统13A,13B中的14个,使得二次电池或电容器对功率波动进行充电/放电以达到平均输出功率,并且将平均输出功率输出到三相AC系统11.

      版权所有(C)2012,JPO&INPIT

    • 4. 发明专利
    • Gate drive device
    • 门驱动装置
    • JP2013038843A
    • 2013-02-21
    • JP2011170796
    • 2011-08-04
    • Mitsubishi Electric Corp三菱電機株式会社Tokyo Institute Of Technology国立大学法人東京工業大学
    • HORIGUCHI GOJINAKATAKE HIROSHIAKAGI YASUBUMIFUJITA HIDEAKIIWATA YASUAKIURUSHIBATA HIROAKITOMINAGA SHINJI
    • H02M1/08
    • PROBLEM TO BE SOLVED: To provide a gate drive device that can implement switching control with satisfactory loss and noise characteristics even when operating conditions change.SOLUTION: The gate drive device includes: a constant current drive circuit 11C; a constant voltage drive circuit 11V; a circuit characteristic information holding section 15 for holding information on either or both of a switching loss and a radiation noise caused when each of the constant current drive circuit 11C and the constant voltage drive circuit 11V drives a switching element 2 with respect to a parameterized operating condition of the switching element 2; an operating condition detection section 14 for detecting the operating condition of the switching element 2; and a drive circuit switching sections 12, 13 for selecting either of the constant current drive circuit 11C and the constant voltage drive circuit 11V to drive the switching element 2 on the basis of the detected operating condition and the circuit characteristic information held by the circuit characteristic information holding section 15.
    • 要解决的问题:提供即使在操作条件改变时也能够实现具有令人满意的损耗和噪声特性的开关控制的栅极驱动装置。 栅极驱动装置包括:恒流驱动电路11C; 恒压驱动电路11V; 一个电路特性信息保持部分15,用于保持当恒定电流驱动电路11C和恒定电压驱动电路11V相对于参数化的操作驱动开关元件2时引起的开关损耗和辐射噪声中的一个或两个的信息 开关元件2的状态; 用于检测开关元件2的工作状态的工作条件检测部分14; 以及用于选择恒流驱动电路11C和恒压驱动电路11V中的任一个的驱动电路开关部12,13,以根据检测到的工作条件和由电路特性保持的电路特性信息来驱动开关元件2 信息保存部分15.版权所有(C)2013,JPO&INPIT
    • 5. 发明专利
    • Power converter
    • 电源转换器
    • JP2011182517A
    • 2011-09-15
    • JP2010042622
    • 2010-02-26
    • Tokyo Institute Of Technology国立大学法人東京工業大学
    • AKAGI YASUBUMIHAGIWARA MAKOTO
    • H02M7/483H02M7/48
    • H02M2001/0003H02M2007/4835Y02E10/56
    • PROBLEM TO BE SOLVED: To achieve a modular multilevel PWM conversion type power converter that can be stably controlled in each operation mode. SOLUTION: The modular multilevel PWM conversion type power converter 1 includes a first control means that carries out control to cause a value obtained by averaging the voltage values of all the direct-current capacitors to follow a predetermined capacitor voltage command value, a second control means that carries out control to cause the voltage value of each direct-current capacitor to follow the capacitor voltage command value, and a third control means that carries out control to make a value obtained by averaging the voltage values of all the direct-current capacitors in a first arm and a value obtained by averaging the voltage values of all the direct-current capacitors in a second arm agree with each other. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:实现在每个操作模式下可以稳定地控制的模块化多电平PWM转换型功率转换器。 解决方案:模块化多电平PWM转换型功率转换器1包括第一控制装置,其执行控制以使得通过对所有直流电容器的电压值进行平均而获得的值遵循预定的电容器电压指令值, 第二控制装置,其执行使每个直流电容器的电压值遵循电容器电压指令值的控制;以及第三控制装置,其执行控制以使得通过对所有直流电容器的电压值进行平均而获得的值, 第一臂中的电流电容器和通过对第二臂中的所有直流电容器的电压值进行平均而获得的值彼此一致。 版权所有(C)2011,JPO&INPIT
    • 6. 发明专利
    • Voltage uniform circuit
    • 电压均匀电路
    • JP2010220364A
    • 2010-09-30
    • JP2009063567
    • 2009-03-16
    • Tokyo Institute Of Technology国立大学法人東京工業大学
    • AKAGI YASUBUMIHASEGAWA KAZUNORI
    • H02M7/483
    • PROBLEM TO BE SOLVED: To provide a compact and inexpensive voltage uniform circuit which is connected to a DC link capacitor of a 5- or 4-level inverter to uniformly control voltages in the respective capacitors and has a simple structure. SOLUTION: The voltage uniform circuit 1 includes a switch group SW1, a diode D 1 connected to the switch group SW1, a diode D 2 connected to the diode D 1 , a switch group SW2 connected to the diode D 2 , a coupling reactor L M which has a winding L MP and a winding L MN such that the winding L MP is connected between a connection point of the switch group SW1 and the diode D 1 and a connection point of a capacitor C DC1 and a capacitor C DC2 , and the winding L MN is connected between a connection point of the diode D 2 and the switch group SW2 and a connection point of a capacitor C DC3 and a capacitor C DC4 , and a control unit for turning off the switch group SW2 when the switch group SW1 is turned on and turning on the switch group SW2 when the switch group SW1 is turned off. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种紧凑且廉价的电压均匀电路,其连接到5或4电平逆变器的DC链路电容器以均匀地控制各个电容器中的电压并且具有简单的结构。

      解决方案:电压均匀电路1包括开关组SW1,连接到开关组SW1的二极管D 1 ,连接到二极管D的二极管D 2 1 ,连接到二极管D 2 的开关组SW2,具有绕组L M 的耦合电抗器L SB>和绕组L MN ,使得绕组L SB 连接在开关组SW1的连接点和二极管D 1 以及电容器C DC1 和电容器C DC2 的连接点,并且绕组L MN 连接在二极管的连接点 D 2 和开关组SW2以及电容器C DC3 和电容器C DC4 的连接点,以及用于关闭的控制单元 开关组SW1接通时的开关组SW2,开关组SW1断开时接通开关组SW2。 版权所有(C)2010,JPO&INPIT

    • 9. 发明专利
    • Dc/dc converter
    • DC / DC转换器
    • JP2012044801A
    • 2012-03-01
    • JP2010185066
    • 2010-08-20
    • Tokyo Institute Of Technology国立大学法人東京工業大学
    • AKAGI YASUBUMIHASEGAWA KAZUNORI
    • H02J7/00H01M10/44H02M3/28
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide a compact DC/DC converter having high efficiency and high energy density.SOLUTION: A DC/DC converter connected between a primary DC voltage source V1 and a secondary DC voltage source V2 comprises: a primary power conversion unit 11 in which each of DC side input/output terminals P1-1 and P1-2 is connected to a positive electrode terminal and a negative electrode terminal, respectively, of a primary DC voltage source and performs bidirectional power conversion between DC and AC; a secondary power conversion unit 12 in which one DC side input/output terminal P2-1 is connected to a positive electrode terminal of the secondary DC voltage source and the other DC side input/output terminal P2-2 is connected to the positive electrode terminal of the primary DC voltage source and performs bidirectional power conversion between DC and AC; and a transformer 13 in which each of primary side terminals R1-1 and R1-2 is connected to each of AC side input/output terminals Q1-1 and Q1-2, respectively, of the primary power conversion unit 11, and each of secondary side terminals R2-1 and R2-2 is connected to each of AC side input/output terminals Q2-1 and Q2-2, respectively, of the secondary power conversion unit 12.
    • 要解决的问题:提供具有高效率和高能量密度的紧凑型DC / DC转换器。 连接在初级直流电压源V1和次级直流电压源V2之间的DC / DC转换器包括:主电源转换单元11,其中每个直流侧输入/输出端子P1-1和P1-2 分别连接到初级直流电压源的正极端子和负极端子,并在DC和AC之间进行双向电力转换; 一个DC侧输入输出端子P2-1连接到次级DC电压源的正极端子,另一个DC侧输入输出端子P2-2的二次电力转换单元12连接到正极端子 的直流和直流电源进行双向电源转换; 以及变压器13,其中初级侧端子R1-1和R1-2分别连接到主电力转换单元11的每个AC侧输入/输出端子Q1-1和Q1-2,并且每个 次级端子R2-1和R2-2分别连接到二次电力转换单元12的每个AC侧输入/输出端子Q2-1和Q2-2。(C)2012年,JPO和INPIT
    • 10. 发明专利
    • Power converter
    • 电源转换器
    • JP2012044839A
    • 2012-03-01
    • JP2010186249
    • 2010-08-23
    • Tokyo Institute Of Technology国立大学法人東京工業大学
    • FUJITA HIDEAKIAKAGI YASUBUMIHAGIWARA MAKOTO
    • H02M7/483
    • H02M2001/0003H02M2007/4835
    • PROBLEM TO BE SOLVED: To realize a power converter of modular multilevel PWM converter type, capable of performing stable control in any operation mode.SOLUTION: A power converter 1 of modular multilevel cascade type includes: a plurality of chopper cells each of which contains a semiconductor switch group containing two semiconductor switches connected in series and a DC capacitor connected in parallel to the semiconductor switch group; a first arm containing a plurality of chopper cells connected in cascade; a second arm which is connected to the first arm in series and contains a plurality of chopper cells connected in cascade; command value generating means which generates a circulation current command value based on the voltage value of the DC capacitor in the first arm as well as the voltage value of the DC capacitor in the second arm; and control means which performs control so that the circulation current, which is a half of the sum of the current flowing through the first arm and the current flowing through the second arm, follows the circulation current command value.
    • 要解决的问题:实现模块化多电平PWM转换器类型的电源转换器,能够在任何操作模式下执行稳定的控制。 解决方案:模块化多级联级联功率转换器1包括:多个斩波单元,每个斩波单元包含一个包含串联连接的两个半导体开关的半导体开关组和与半导体开关组并联连接的直流电容; 包含串联连接的多个切断单元的第一臂; 第二臂,其串联连接到所述第一臂,并且包含串联连接的多个切断单元; 指令值产生装置,其根据第一臂中的直流电容器的电压值以及第二臂中的直流电容器的电压值产生循环电流指令值; 以及控制装置,其执行控制,使得流过第一臂的电流和流过第二臂的电流之和的循环电流遵循循环电流指令值。 版权所有(C)2012,JPO&INPIT