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31. 发明授权

US08614903B2 Power conditioner for photovoltaic power generation 有权
标题翻译：光伏发电用功率调节器
公开(公告)号：US08614903B2
公开(公告)日：2013-12-24
申请号：US13386710
申请日：2010-07-14
申请人： Taichiro Tsuchiya , Akihiko Iwata , Tomoyuki Kawakami , Tatsuya Okuda
发明人： Taichiro Tsuchiya , Akihiko Iwata , Tomoyuki Kawakami , Tatsuya Okuda
IPC分类号： H02M7/515
CPC分类号： H01L31/02021 , H02J3/383 , Y02E10/563
摘要： Power generated by a solar battery of thin-film type is stepped up to a predetermined DC voltage by a step-up chopper circuit, and the predetermined DC voltage is converted into three-phase AC power by an inverter circuit, and the three-phase AC power is supplied to an AC power supply system via an output DC voltage circuit. The solar battery is not grounded, and a negative electrode thereof has a floating capacitance between the negative electrode and the ground. The AC power supply system is configured by three-phase star-connection, and the neutral point is grounded. The output DC voltage circuit includes three batteries, and the batteries are provided, for the respective phases, between the AC power supply system and a sine wave filter connected to the AC output side of the inverter circuit. Therefore, it is possible to prevent acceleration of the deterioration of the solar battery.
摘要翻译：由薄膜型太阳能电池产生的电力通过升压斩波电路升压到预定的直流电压，并且通过逆变器电路将预定的直流电压转换为三相交流电力，并且三相交流电源通过输出直流电压电路提供给交流电源系统。太阳能电池不接地，其负极在负极和地之间具有浮动电容。交流电源系统由三相星形连接构成，中性点接地。输出直流电压电路包括三个电池，并且在各个相位之间，在AC电源系统和连接到逆变器电路的AC输出侧的正弦波滤波器之间提供电池。因此，能够防止太阳能电池的劣化的加速。

32. 发明授权

US08611120B2 Power conversion apparatus 有权
标题翻译：电力转换装置
公开(公告)号：US08611120B2
公开(公告)日：2013-12-17
申请号：US13376517
申请日：2009-11-26
申请人： Tatsuya Okuda , Akihiko Iwata , Kenji Fujiwara , Kikuo Izumi
发明人： Tatsuya Okuda , Akihiko Iwata , Kenji Fujiwara , Kikuo Izumi
IPC分类号： H02M7/5387
CPC分类号： H02M7/487 , H02M7/49 , H02M7/501
摘要： A power conversion apparatus including: a three-level inverter including bridge circuits each including a first semiconductor switching device and a second semiconductor switching device connected in series, the bridge circuits being connected to a positive terminal and a negative terminal of a DC power supply, and switch circuits having bidirectional characteristics and connected to respective AC output terminals of the bridge circuits which are the connection points between the first semiconductor switching devices and the second semiconductor switching devices, and to an intermediate potential point of the DC power supply; and single-phase inverters each including a plurality of semiconductor switching devices and respectively connected in series to the AC output terminals of the bridge circuits. The sum of an output voltage of the three-level inverter and output voltages of the single-phase inverters is supplied to a load.
摘要翻译：一种电力转换装置，包括：三电平逆变器，包括各自包括串联连接的第一半导体开关装置和第二半导体开关装置的桥式电路，所述桥式电路与直流电源的正极端子和负极端子连接，和具有双向特性的开关电路，并连接到作为第一半导体开关器件和第二半导体开关器件之间的连接点的桥接电路的各个AC输出端子以及直流电源的中间电位点; 以及各自包括多个半导体开关器件并且分别串联连接到桥接电路的AC输出端子的单相逆变器。三相逆变器的输出电压和单相逆变器的输出电压的和被提供给负载。

33. 发明授权

US08604757B2 DC/DC power conversion apparatus 有权
标题翻译： DC / DC电力转换装置
公开(公告)号：US08604757B2
公开(公告)日：2013-12-10
申请号：US13520914
申请日：2010-11-29
申请人： Tatsuya Okuda , Hiroshi Ito
发明人： Tatsuya Okuda , Hiroshi Ito
IPC分类号： G05F1/613 , G05F1/618
CPC分类号： H02M3/158
摘要： A DC/DC power conversion apparatus includes a reactor connected to a DC power supply and a DC voltage conversion section connected to the reactor. The DC voltage conversion section includes a plurality of switching devices, a charge-discharge capacitor which is charged or discharged by ON/OFF operations of the switching devices, a plurality of diodes which provide a charging route and a discharging route for the charge-discharge capacitor. The DC/DC power conversion apparatus also includes a smoothing capacitor on an output side, which is connected to the DC voltage conversion section and including a plurality of voltage division capacitors connected in series to each other, and a switching device for voltage equalization provided on a connection line provided between the negative terminal of the charge-discharge capacitor and a connection point between the voltage division capacitors.
摘要翻译： DC / DC电力转换装置包括连接到DC电源的电抗器和连接到电抗器的DC电压转换部。直流电压转换部包括多个开关器件，通过开关器件的导通/截止操作而被充电或放电的充放电电容器，提供用于充电放电的充电路径和放电路径的多个二极管电容器。 DC / DC电力转换装置还包括在输出侧的平滑电容器，其连接到DC电压转换部分并且包括彼此串联连接的多个分压电容器，以及用于电压均衡的开关装置，设置在充放电电容器的负极和分压电容器之间的连接点之间的连接线。

34. 发明申请

US20130021011A1 DC/DC POWER CONVERSION APPARATUS 有权
标题翻译： DC / DC电源转换器
公开(公告)号：US20130021011A1
公开(公告)日：2013-01-24
申请号：US13520914
申请日：2010-11-29
申请人： Tatsuya Okuda , Hiroshi Ito
发明人： Tatsuya Okuda , Hiroshi Ito
IPC分类号： G05F1/00
CPC分类号： H02M3/158
摘要： A DC/DC power conversion apparatus includes a reactor connected to a DC power supply and a DC voltage conversion section connected to the reactor. The DC voltage conversion section includes a plurality of switching devices, a charge-discharge capacitor which is charged or discharged by ON/OFF operations of the switching devices, a plurality of diodes which provide a charging route and a discharging route for the charge-discharge capacitor. The DC/DC power conversion apparatus also includes a smoothing capacitor on an output side, which is connected to the DC voltage conversion section and including a plurality of voltage division capacitors connected in series to each other, and a switching device for voltage equalization provided on a connection line provided between the negative terminal of the charge-discharge capacitor and a connection point between the voltage division capacitors.
摘要翻译： DC / DC电力转换装置包括连接到DC电源的电抗器和连接到电抗器的DC电压转换部。直流电压转换部包括多个开关器件，通过开关器件的导通/截止操作而被充电或放电的充放电电容器，提供用于充电放电的充电路径和放电路径的多个二极管电容器。 DC / DC电力转换装置还包括在输出侧的平滑电容器，其连接到DC电压转换部分并且包括彼此串联连接的多个分压电容器，以及用于电压均衡的开关装置，设置在充放电电容器的负极和分压电容器之间的连接点之间的连接线。

35. 发明申请

US20120038330A1 METHOD AND AN APPARATUS FOR CONTROLLING THE OUTPUT VOLTAGE OF A BOOST CONVERTER COMPOSED OF PLURAL BRIDGE DEVICES 有权
标题翻译：用于控制组合式桥式装置的升压转换器的输出电压的方法和装置
公开(公告)号：US20120038330A1
公开(公告)日：2012-02-16
申请号：US13259911
申请日：2010-04-22
申请人： Gustavo Buiatti , Tomoyuki Kawakami , Tatsuya Okuda , Nicolas Voyer
发明人： Gustavo Buiatti , Tomoyuki Kawakami , Tatsuya Okuda , Nicolas Voyer
IPC分类号： G05F1/10
CPC分类号： H02M3/1582 , H02J3/383 , H02M3/07 , H02M2001/007 , H02M2007/4835 , Y02E10/563
摘要： The present invention concerns an apparatus for controlling the output voltage of a boost converter composed of a number n of bridge devices (B, B2, B3) connected in series, each bridge device being composed of plural switches (S11, S12, S21, S22, S31, S32) and a capacitor (C1, C2, C3). The apparatus comprises means for controlling the switches according to one periodical pattern being decomposed in a number N of time intervals and in that in each time interval, the voltage between the input and the output (B, B2, B3) of each ith bridge device with i from one to n, is equal to a null value, or a number ki times a positive value, or minus the number ki times the positive value, the positive value being the result of the division of the output voltage of the boost converter composed of n bridge (B1, B2, B3) devices by the number of time intervals of the periodical pattern.
摘要翻译：本发明涉及一种用于控制由数个n个串联连接的桥接器件（B，B2，B3）组成的升压转换器的输出电压的装置，每个桥接器件由多个开关组成（S11，S12，S21，S22 ，S31，S32）和电容器（C1，C2，C3）。该装置包括用于根据在N个时间间隔内分解的一个周期性模式来控制开关的装置，并且在每个时间间隔中，每个第i个桥接器件的输入和输出（B，B2，B3）之间的电压 i从1到n等于零值，或数字ki乘以正值，或减去正数的ki倍数，正值是升压转换器输出电压除法的结果由n个桥（B1，B2，B3）设备通过周期性模式的时间间隔数量组成。

36. 发明申请

US20110121661A1 POWER CONVERSION DEVICE 失效
标题翻译：电源转换器件
公开(公告)号：US20110121661A1
公开(公告)日：2011-05-26
申请号：US13055153
申请日：2009-07-23
申请人： Tomoyuki Kawakami , Akihiko Iwata , Tatsuya Okuda
发明人： Tomoyuki Kawakami , Akihiko Iwata , Tatsuya Okuda
IPC分类号： H02M3/18
CPC分类号： G05F1/67 , H02J7/345 , H02J7/35 , H02M3/07 , Y02E10/58
摘要： In a power conversion device which performs DC/DC conversion, an inverter circuit (20), which is formed of one or more single-phase inverters (20a) and (20b) connected in series to each other, is connected in series to a DC power supply (1) in its subsequent stage. In further subsequent stage, a smoothing capacitor (6) connected to the inverter circuit (20) via a rectifier diode (5), and a shorting switch (4) which bypasses the smoothing capacitor (6) are provided. The shorting switch (4) is switched ON to charge capacitors (25) and (35) included in the single-phase inverter (20a) and (20b), respectively, whereas the shorting switch (4) is switched OFF to discharge the capacitors (25) and (35), whereby the voltage of the smoothing capacitor (6) is controlled.
摘要翻译：在进行DC / DC转换的电力变换装置中，由串联连接的一个以上的单相逆变器（20a）和（20b）构成的逆变器电路（20）与直流电源（1）在其后续阶段。在后续的阶段中，设置经由整流二极管（5）与逆变器电路（20）连接的平滑电容器（6）和绕过平滑电容器（6）的短路开关（4）。短路开关（4）接通，分别对包含在单相逆变器（20a）和（20b）中的电容器（25）和（35）充电，而短路开关（4）断开以对电容器（25）和（35），从而控制平滑电容器（6）的电压。

37. 发明授权

US07675763B2 Semiconductor power converter apparatus 有权
标题翻译：半导体功率转换装置
公开(公告)号：US07675763B2
公开(公告)日：2010-03-09
申请号：US11633467
申请日：2006-12-05
申请人： Tatsuya Okuda , Takuya Michinaka
发明人： Tatsuya Okuda , Takuya Michinaka
IPC分类号： H02M5/42 , H02M7/04 , H02M7/68
CPC分类号： H02M7/538 , H01L23/34 , H01L25/18 , H01L2924/0002 , H02M1/32 , H03K17/0828 , H03K17/127 , H03K17/18 , H03K2017/0806 , H01L2924/00
摘要： Even when one of IGBTs fails in a semiconductor power converter apparatus in which a plurality of semiconductor elements are connected in parallel, the remaining IGBT(s) is prevented from failing with a simple circuit configuration. The semiconductor power converter apparatus includes: a semiconductor power conversion circuit in which a first IGBT having a temperature sensing unit and a second IGBT having a current sensing unit are connected in parallel, for causing the first and second semiconductor elements to perform switching operations; an overheat protection circuit for performing overheat protection for the first and second IGBTs based on temperature information obtained from the temperature sensing unit of the first IGBT; and an overcurrent protection circuit for performing overcurrent protection for the first and second IGBTs based on current information obtained from the current sensing unit of the second IGBT.
摘要翻译：即使在其中多个半导体元件并联连接的半导体功率转换装置中的IGBT之一失效，也可以通过简单的电路结构来防止剩余的IGBT失效。半导体功率转换装置包括：半导体功率转换电路，其中具有温度感测单元的第一IGBT和具有电流感测单元的第二IGBT并联连接，用于使第一和第二半导体元件执行开关操作; 一个过热保护电路，用于根据从第一IGBT的温度检测单元得到的温度信息，对第一和第二IGBT进行过热保护; 以及基于从第二IGBT的电流感测单元获得的电流信息，对第一IGBT和第二IGBT进行过电流保护的过电流保护电路。

38. 发明申请

US20120092915A1 POWER CONVERSION APPARATUS 有权
标题翻译：功率转换装置
公开(公告)号：US20120092915A1
公开(公告)日：2012-04-19
申请号：US13376517
申请日：2009-11-26
申请人： Tatsuya Okuda , Akihiko Iwata , Kenji Fujiwara , Kikuo Izumi
发明人： Tatsuya Okuda , Akihiko Iwata , Kenji Fujiwara , Kikuo Izumi
IPC分类号： H02M7/5387
CPC分类号： H02M7/487 , H02M7/49 , H02M7/501
摘要： A power conversion apparatus including: a three-level inverter including bridge circuits each including a first semiconductor switching device and a second semiconductor switching device connected in series, the bridge circuits being connected to a positive terminal and a negative terminal of a DC power supply, and switch circuits having bidirectional characteristics and connected to respective AC output terminals of the bridge circuits which are the connection points between the first semiconductor switching devices and the second semiconductor switching devices, and to an intermediate potential point of the DC power supply; and single-phase inverters each including a plurality of semiconductor switching devices and respectively connected in series to the AC output terminals of the bridge circuits. The sum of an output voltage of the three-level inverter and output voltages of the single-phase inverters is supplied to a load.
摘要翻译：一种电力转换装置，包括：三电平逆变器，包括各自包括串联连接的第一半导体开关装置和第二半导体开关装置的桥式电路，所述桥式电路与直流电源的正极端子和负极端子连接，和具有双向特性的开关电路，并连接到作为第一半导体开关器件和第二半导体开关器件之间的连接点的桥接电路的各个AC输出端子以及直流电源的中间电位点; 以及各自包括多个半导体开关器件并且分别串联连接到桥接电路的AC输出端子的单相逆变器。三相逆变器的输出电压和单相逆变器的输出电压的和被提供给负载。

39. 发明申请

US20070284664A1 Semiconductor power converter apparatus 有权
标题翻译：半导体功率转换装置
公开(公告)号：US20070284664A1
公开(公告)日：2007-12-13
申请号：US11633467
申请日：2006-12-05
申请人： Tatsuya Okuda , Takuya Michinaka
发明人： Tatsuya Okuda , Takuya Michinaka
IPC分类号： H01L23/62
CPC分类号： H02M7/538 , H01L23/34 , H01L25/18 , H01L2924/0002 , H02M1/32 , H03K17/0828 , H03K17/127 , H03K17/18 , H03K2017/0806 , H01L2924/00
摘要： Even when one of IGBTs fails in a semiconductor power converter apparatus in which a plurality of semiconductor elements are connected in parallel, the remaining IGBT(s) is prevented from failing with a simple circuit configuration. The semiconductor power converter apparatus includes: a semiconductor power conversion circuit in which a first IGBT having a temperature sensing unit and a second IGBT having a current sensing unit are connected in parallel, for causing the first and second semiconductor elements to perform switching operations; an overheat protection circuit for performing overheat protection for the first and second IGBTs based on temperature information obtained from the temperature sensing unit of the first IGBT; and an overcurrent protection circuit for performing overcurrent protection for the first and second IGBTs based on current information obtained from the current sensing unit of the second IGBT.
摘要翻译：即使在其中多个半导体元件并联连接的半导体功率转换装置中的IGBT之一失效，也可以通过简单的电路结构来防止剩余的IGBT失效。半导体功率转换装置包括：半导体功率转换电路，其中具有温度感测单元的第一IGBT和具有电流感测单元的第二IGBT并联连接，用于使第一和第二半导体元件执行开关操作; 一个过热保护电路，用于根据从第一IGBT的温度检测单元得到的温度信息，对第一和第二IGBT进行过热保护; 以及基于从第二IGBT的电流感测单元获得的电流信息，对第一IGBT和第二IGBT进行过电流保护的过电流保护电路。

40. 发明授权

US08754549B2 Power conversion device 失效
标题翻译：电源转换装置
公开(公告)号：US08754549B2
公开(公告)日：2014-06-17
申请号：US13055153
申请日：2009-07-23
申请人： Tomoyuki Kawakami , Akihiko Iwata , Tatsuya Okuda
发明人： Tomoyuki Kawakami , Akihiko Iwata , Tatsuya Okuda
IPC分类号： H02M3/18 , H02J7/35 , G05F1/67 , H02M3/07 , H02J7/34
CPC分类号： G05F1/67 , H02J7/345 , H02J7/35 , H02M3/07 , Y02E10/58
摘要： In a power conversion device which performs DC/DC conversion, an inverter circuit (20), which is formed of one or more single-phase inverters (20a) and (20b) connected in series to each other, is connected in series to a DC power supply (1) in its subsequent stage. In further subsequent stage, a smoothing capacitor (6) connected to the inverter circuit (20) via a rectifier diode (5), and a shorting switch (4) which bypasses the smoothing capacitor (6) are provided. The shorting switch (4) is switched ON to charge capacitors (25) and (35) included in the single-phase inverter (20a) and (20b), respectively, whereas the shorting switch (4) is switched OFF to discharge the capacitors (25) and (35), whereby the voltage of the smoothing capacitor (6) is controlled.
摘要翻译：在进行DC / DC转换的电力变换装置中，由串联连接的一个以上的单相逆变器（20a）和（20b）构成的逆变器电路（20）与直流电源（1）在其后续阶段。在后续的阶段中，设置经由整流二极管（5）与逆变器电路（20）连接的平滑电容器（6）和绕过平滑电容器（6）的短路开关（4）。短路开关（4）接通，分别对包含在单相逆变器（20a）和（20b）中的电容器（25）和（35）充电，而短路开关（4）断开以对电容器（25）和（35），从而控制平滑电容器（6）的电压。

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