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1. 发明授权

US07009828B2 Semiconductor switching device 失效
标题翻译：半导体开关装置
公开(公告)号：US07009828B2
公开(公告)日：2006-03-07
申请号：US10463813
申请日：2003-06-18
申请人： Hiroshi Ito , Akihiko Iwata , Akihiro Suzuki
发明人： Hiroshi Ito , Akihiko Iwata , Akihiro Suzuki
IPC分类号： H02H3/20
CPC分类号： H03K17/08144 , H02M1/08 , H03K17/105
摘要： Self-quenching switching elements are connected in series in a semiconductor switching device. Snubber circuits including a diode, a capacitor, and a non-linear circuit are connected in parallel with the respective semiconductor switching elements. In the snubber circuit, the diode and the capacitor are connected in series, and the non-linear circuit is connected in parallel with the capacitor. The non-linear circuit includes an impedance element, a Zener diode, and a controlling semiconductor element and draws current through the controlling semiconductor element when applied voltage exceeds the Zener voltage of the Zener diode. The Zener voltage is larger than a divided voltage applied to the semiconductor element during a fault in a power system.
摘要翻译：自熄型开关元件串联连接在半导体开关器件中。包括二极管，电容器和非线性电路的缓冲电路与各个半导体开关元件并联连接。在缓冲电路中，二极管和电容器串联连接，非线性电路与电容并联。当施加的电压超过齐纳二极管的齐纳电压时，非线性电路包括阻抗元件，齐纳二极管和控制半导体元件，并且通过控制半导体元件吸取电流。在电力系统的故障期间，齐纳电压大于施加到半导体元件的分压。

2. 发明申请

US20050041348A1 Semiconductor switching device 审中-公开
标题翻译：半导体开关装置
公开(公告)号：US20050041348A1
公开(公告)日：2005-02-24
申请号：US10952880
申请日：2004-09-30
申请人： Hiroshi Ito , Akihiko Iwata , Akihiro Suzuki
发明人： Hiroshi Ito , Akihiko Iwata , Akihiro Suzuki
IPC分类号： H02H9/04 , H02H7/12 , H02H7/20 , H02M1/00 , H02M1/08 , H03K17/0814 , H03K17/16 , H03K17/56 , H02H9/00
CPC分类号： H03K17/08144 , H02M1/08 , H03K17/105
摘要： Self-quenching switching elements are connected in series in a semiconductor switching device. Snubber circuits including a diode, a capacitors, and a non-linear circuit are connected in parallel with the respective semiconductor switching elements. In the snubber circuit, the diode and the capacitor are connected in series, and the non-linear circuit is connected in parallel with the capacitor. The non-linear circuit includes an impedance element, a Zener diode, and a controlling semiconductor element and draws current through the controlling semiconductor element when applied voltage exceeds the Zener voltage of the Zener diode. The Zener voltage is larger than a divided voltage applied to the semiconductor element during a fault in a power system.
摘要翻译：自熄型开关元件串联连接在半导体开关器件中。包括二极管，电容器和非线性电路的缓冲电路与各个半导体开关元件并联连接。在缓冲电路中，二极管和电容器串联连接，非线性电路与电容并联。当施加的电压超过齐纳二极管的齐纳电压时，非线性电路包括阻抗元件，齐纳二极管和控制半导体元件，并且通过控制半导体元件吸取电流。在电力系统的故障期间，齐纳电压大于施加到半导体元件的分压。

3. 发明授权

US06639767B2 Semiconductor switching devices 失效
标题翻译：半导体开关器件
公开(公告)号：US06639767B2
公开(公告)日：2003-10-28
申请号：US09986326
申请日：2001-11-08
申请人： Hiroshi Ito , Akihiko Iwata , Akihiro Suzuki
发明人： Hiroshi Ito , Akihiko Iwata , Akihiro Suzuki
IPC分类号： H02H900
CPC分类号： H03K17/08144 , H02M1/08 , H03K17/105
摘要： Self-quenching switching elements are connected in series in a semiconductor switching device. Snubber circuits including a diode, a capacitor, and a non-linear circuit are connected in parallel with the respective semiconductor switching elements. In the snubber circuit, the diode and the capacitor are connected in series, and the non-linear circuit is connected in parallel with the capacitor. The non-linear circuit includes an impedance element, a Zener diode, and a controlling semiconductor element and draws current through the controlling semiconductor element when applied voltage exceeds the Zener voltage of the Zener diode. The Zener voltage is larger than a divided voltage applied to the semiconductor element during a fault in a power system.
摘要翻译：自熄型开关元件串联连接在半导体开关器件中。包括二极管，电容器和非线性电路的缓冲电路与各个半导体开关元件并联连接。在缓冲电路中，二极管和电容器串联连接，非线性电路与电容并联。当施加的电压超过齐纳二极管的齐纳电压时，非线性电路包括阻抗元件，齐纳二极管和控制半导体元件，并且通过控制半导体元件吸取电流。在电力系统的故障期间，齐纳电压大于施加到半导体元件的分压。

4. 发明申请

US20100014335A1 THREE-PHASE POWER CONVERTING APPARATUS 有权
标题翻译：三相电源转换器
公开(公告)号：US20100014335A1
公开(公告)日：2010-01-21
申请号：US12527709
申请日：2008-02-20
申请人： Akihiko Iwata , Hiroshi Ito , Hirofumi Akagi , Hideaki Fujita , Takushi Jimichi
发明人： Akihiko Iwata , Hiroshi Ito , Hirofumi Akagi , Hideaki Fujita , Takushi Jimichi
IPC分类号： H02M7/5387
CPC分类号： H02J3/383 , H02M7/49 , H02M7/53875 , Y02E10/563
摘要： A three-phase inverter circuit (4) of which DC portion is smoothing capacitors (3) connected between output terminals of a solar battery (1) and single-phase inverters (5a-5c) connected in series with AC output lines of the three-phase inverter circuit (4) together constitute an inverter section, and this inverter section is connected to a three-phase power system (2). The three-phase inverter circuit (4) outputs a reverse-polarity voltage pulse (10ua) during a period within each of basic voltage pulses of which pulsewidth corresponds to a half cycle every half cycle of a system voltage. A power burden born by the individual single-phase inverters (5a-5c) in each half cycle is made approximately zero and the individual single-phase inverters (5a-5c) make a correction for subtracting a common voltage (Vo) from target output voltages of individual phases during the period when the reverse-polarity voltage pulse (10ua) is generated.
摘要翻译：一个三相逆变器电路（4），其直流部分是连接在太阳能电池（1）的输出端和与三相交流输出线串联的单相逆变器（5a-5c）之间的平滑电容器（3）相位逆变器电路（4）共同构成逆变器部分，该逆变器部分连接到三相电力系统（2）。三相逆变器电路（4）在脉冲宽度对应于系统电压的每半个周期的半周期的每个基本电压脉冲期间的周期期间输出反极性电压脉冲（10ua）。在每个半周期内由各个单相逆变器（5a-5c）产生的电力负担大致为零，并且各个单相逆变器（5a-5c）进行从目标输出中减去公共电压（Vo）的校正在产生反极性电压脉冲（10ua）的期间，各相的电压。

5. 发明授权

US08625307B2 DC to AC power converting apparatus 有权
标题翻译：直流到交流电力转换装置
公开(公告)号：US08625307B2
公开(公告)日：2014-01-07
申请号：US13127132
申请日：2009-11-11
申请人： Akihiko Iwata , Hiroshi Ito
发明人： Akihiko Iwata , Hiroshi Ito
IPC分类号： H02M1/12 , H02M1/14
CPC分类号： H02M7/49 , H02M7/487 , H02M7/501 , H02M2007/4835
摘要： A neutral point clamped three-phase three-level inverter is connected to a first DC power supply and single-phase inverters are connected in series with AC output lines of individual phases of the three-phase three-level inverter such that sums of output voltages of the three-phase three-level inverter and output voltages of the respective single-phase inverters are output to a load through a smoothing filter. An output control unit controls the three-phase three-level inverter so that the individual phases of the three-phase three-level inverter output primary voltage pulses at a rate of one pulse per half cycle and controls the individual single-phase inverters by PWM, so that output voltages to the individual phases of the load form sine waves of which phases are offset by 2π/3 from one phase to another, the sine waves having the same peak value.
摘要翻译：中性点钳位三相三电平逆变器连接到第一直流电源，单相逆变器与三相三电平逆变器的各相交流输出线串联连接，使得输出电压之和三相三相逆变器的输出电压通过平滑滤波器输出到负载。输出控制单元控制三相三电平逆变器，使得三相三电平逆变器的各相以每半个周期的一个脉冲的速率输出一次电压脉冲，并通过PWM来控制各个单相逆变器，使得负载的各相的输出电压形成正相波，其相位从一相偏移2pi / 3，正弦波具有相同的峰值。

6. 发明授权

US08228699B2 Power converting apparatus including half-bridge inverters connected between positive and negative terminals of a DC power supply 有权
标题翻译：电力转换装置，包括连接在直流电源的正极和负极端子之间的半桥逆变器
公开(公告)号：US08228699B2
公开(公告)日：2012-07-24
申请号：US12527869
申请日：2008-02-20
申请人： Akihiko Iwata , Hiroshi Ito , Hirofumi Akagi , Hideaki Fujita , Takushi Jimichi
发明人： Akihiko Iwata , Hiroshi Ito , Hirofumi Akagi , Hideaki Fujita , Takushi Jimichi
IPC分类号： H02M7/5387 , H02M3/24
CPC分类号： H02J7/35 , H02M7/49 , H02M7/53871 , H02M7/53873 , H02M7/5395 , H02M7/793 , Y02E10/566
摘要： A power converting apparatus includes three sets of half-bridge inverters connected between output terminals of a solar battery, each of the half-bridge inverters including two series-connected switching devices, single-phase inverters connected to individual AC output lines of the bridge inverters, and two series-connected capacitors dividing a voltage of the solar battery, wherein output terminals of the single-phase inverters are connected to individual phases of a three-phase power system. Each of the half-bridge inverters is operated to output one pulse per half cycle, each of the single-phase inverters is controlled by PWM control operation to make up for a voltage insufficiency from the system voltage, and sums of outputs of the half-bridge inverters and the single-phase inverters are output to the power system.
摘要翻译：电力转换装置包括连接在太阳能电池的输出端子之间的三组半桥逆变器，每个半桥逆变器包括两个串联的开关装置，连接到桥式逆变器的各个AC输出线的单相逆变器以及分割太阳能电池的电压的两个串联电容器，其中，单相逆变器的输出端子连接到三相电力系统的各个相。每个半桥逆变器每半个周期输出一个脉冲，每个单相逆变器由PWM控制操作控制，以补偿系统电压的电压不足，桥式逆变器和单相逆变器输出到电力系统。

7. 发明授权

US07596008B2 Power conversion apparatus 失效
标题翻译：电力转换装置
公开(公告)号：US07596008B2
公开(公告)日：2009-09-29
申请号：US11816324
申请日：2006-02-21
申请人： Akihiko Iwata , Makoto Seto , Masaki Yamada , Shigeki Harada , Hiroshi Ito , Tomoyuki Kawakami
发明人： Akihiko Iwata , Makoto Seto , Masaki Yamada , Shigeki Harada , Hiroshi Ito , Tomoyuki Kawakami
IPC分类号： H02M7/48 , H02M7/493
CPC分类号： H02M7/5387 , H02M2001/0077 , Y10T307/675
摘要： A power conversion apparatus includes a first single-phase inverter that uses as a DC power source a first DC voltage that is boosted from a solar light voltage by a boosting chopper circuit. The first single-phase inverter is arranged between two single-phase inverters that use second DC power sources that are supplied from the first DC power source. AC sides of the respective single-phase inverters are connected in series. A power conditioner thus configured provides an output voltage using the sum of the generated voltages of the respective single-phase inverters. Chopper circuits are connected between the first DC power source and the second DC power sources, and power is supplied to the second DC power sources from the first DC power source via switching devices in the single-phase inverters.
摘要翻译：电力转换装置包括：第一单相逆变器，其使用由升压斩波电路从太阳光电压升压的第一直流电压作为直流电源。第一单相逆变器布置在使用从第一直流电源提供的第二直流电源的两个单相逆变器之间。各个单相逆变器的交流侧串联连接。这样配置的功率调节器使用各个单相逆变器的发电电压之和来提供输出电压。斩波电路连接在第一直流电源和第二直流电源之间，并通过单相逆变器中的开关装置从第一直流电源向第二直流电源供电。

8. 发明申请

US20110211381A1 POWER CONVERTING APPARATUS 有权
标题翻译：电源转换装置
公开(公告)号：US20110211381A1
公开(公告)日：2011-09-01
申请号：US13127132
申请日：2009-11-11
申请人： Akihiko Iwata , Hiroshi Ito
发明人： Akihiko Iwata , Hiroshi Ito
IPC分类号： H02M7/5387
CPC分类号： H02M7/49 , H02M7/487 , H02M7/501 , H02M2007/4835
摘要： A neutral point clamped three-phase three-level inverter is connected to a first DC power supply and single-phase inverters are connected in series with AC output lines of individual phases of the three-phase three-level inverter such that sums of output voltages of the three-phase three-level inverter and output voltages of the respective single-phase inverters are output to a load through a smoothing filter. An output control unit controls the three-phase three-level inverter so that the individual phases of the three-phase three-level inverter output primary voltage pulses at a rate of one pulse per half cycle and controls the individual single-phase inverters by PWM, so that output voltages to the individual phases of the load form sine waves of which phases are offset by 2π/3 from one phase to another, the sine waves having the same peak value.
摘要翻译：中性点钳位三相三电平逆变器连接到第一直流电源，单相逆变器与三相三电平逆变器的各相交流输出线串联连接，使得输出电压之和三相三相逆变器的输出电压通过平滑滤波器输出到负载。输出控制单元控制三相三电平逆变器，使得三相三电平逆变器的各相以每半个周期的一个脉冲的速率输出一次电压脉冲，并通过PWM来控制各个单相逆变器，使得负载的各个相的输出电压形成正相波，其相位从一个相位向另一个相位偏移2＆pgr / 3，正弦波具有相同的峰值。

9. 发明授权

US08154893B2 Three-phase power converting apparatus 有权
标题翻译：三相电力转换装置
公开(公告)号：US08154893B2
公开(公告)日：2012-04-10
申请号：US12527709
申请日：2008-02-20
申请人： Akihiko Iwata , Hiroshi Ito , Hirofumi Akagi , Hideaki Fujita , Takushi Jimichi
发明人： Akihiko Iwata , Hiroshi Ito , Hirofumi Akagi , Hideaki Fujita , Takushi Jimichi
IPC分类号： H02M7/44
CPC分类号： H02J3/383 , H02M7/49 , H02M7/53875 , Y02E10/563
摘要： A three-phase inverter circuit including a DC portion including capacitors connected between output terminals of a solar battery and single-phase inverters connected in series with AC output lines of the three-phase inverter circuit that together constitute an inverter section, the inverter section being connected to a three-phase power system. The three-phase inverter circuit outputs a reverse-polarity voltage pulse during a period within each of basic voltage pulses of which pulsewidth corresponds to a half cycle every half cycle of a system voltage. A power burden born by the individual single-phase inverters in each half cycle is made approximately zero and the individual single-phase inverters make a correction for subtracting a common voltage from target output voltages of individual phases during the period when the reverse-polarity voltage pulse is generated.
摘要翻译：一种三相逆变器电路，包括直流部分，其包括连接在太阳能电池的输出端子之间的电容器和与三相逆变器电路的AC输出线串联连接的单相逆变器，所述三相逆变器电路一起构成逆变器部分，所述逆变器部分连接到三相电力系统。三相逆变器电路在脉冲宽度对应于系统电压的每半个周期的半周期的每个基本电压脉冲期间的周期内输出反向极性电压脉冲。在每个半周期内由各个单相逆变器产生的电力负担大致为零，并且各个单相逆变器在反相极性电压的期间进行从各相的目标输出电压中减去公共电压的校正产生脉冲。

10. 发明申请

US20110128763A1 POWER CONVERTING APPARATUS 有权
标题翻译：电源转换装置
公开(公告)号：US20110128763A1
公开(公告)日：2011-06-02
申请号：US12527869
申请日：2008-02-20
申请人： Akihiko Iwata , Hiroshi Ito , Hirofumi Akagi , Hideaki Fujita , Takushi Jimichi
发明人： Akihiko Iwata , Hiroshi Ito , Hirofumi Akagi , Hideaki Fujita , Takushi Jimichi
IPC分类号： H02M7/797
CPC分类号： H02J7/35 , H02M7/49 , H02M7/53871 , H02M7/53873 , H02M7/5395 , H02M7/793 , Y02E10/566
摘要： A power converting apparatus is provided with three sets of half-bridge inverters (4a-4c) connected between output terminals of a solar battery (1), each of the half-bridge inverters (4a-4c) including two series-connected switching devices, single-phase inverters (5a-5c) connected to individual AC output lines of the bridge inverters (4a-4c), and two series-connected capacitors (6a, 6b) for dividing a voltage of the solar battery (1), wherein output terminals of the single-phase inverters (5a-5c) are connected to individual phases of a three-phase power system (2). Each of the half-bridge inverters (4a-4c) is operated to output one pulse per half cycle, each of the single-phase inverters (5a-5c) is controlled by PWM control operation to make up for a voltage insufficiency from the system voltage, and sums of outputs of the half-bridge inverters (4a-4c) and the single-phase inverters (5a-5c) are output to the power system (2).
摘要翻译：电力转换装置具有连接在太阳能电池（1）的输出端子之间的三组半桥逆变器（4a-4c），每个半桥逆变器（4a-4c）包括两个串联连接的开关装置，连接到桥式逆变器（4a-4c）的各个AC输出线的单相逆变器（5a-5c）和用于分割太阳能电池（1）的电压的两个串联电容器（6a，6b），其中单相逆变器（5a-5c）的输出端子连接到三相电力系统（2）的各个相。每个半桥逆变器（4a-4c）被操作以每半个周期输出一个脉冲，每个单相逆变器（5a-5c）由PWM控制操作控制以补偿来自系统的电压不足电压和半桥逆变器（4a-4c）和单相逆变器（5a-5c）的输出之和被输出到电力系统（2）。

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