公开(公告)号：US07577007B2

公开(公告)日：2009-08-18

申请号：US11564456

申请日：2006-11-29

申请人： Osamu Mori ,  Masaki Yamada ,  Akihiko Iwata

发明人： Osamu Mori ,  Masaki Yamada ,  Akihiko Iwata

IPC分类号： H02M7/49

CPC分类号： H02J3/1857 ,  H02J3/01 ,  H02M7/49 ,  Y02E40/26 ,  Y02E40/40

摘要： A power converting apparatus used as an active filter includes single-phase multiplex inverter unit for converting DC power into AC power and a control unit for controlling the single-phase multiplex inverter unit. The single-phase multiplex inverter unit includes a first single-phase inverter and a second single-phase inverter. The first single-phase inverter to which a maximum DC voltage is supplied outputs voltage pulses at a rate of one pulse per half the period of an AC voltage fed from an AC source. The control unit includes a pair of hysteresis comparator circuits for driving the second single-phase inverter such that an AC source current follows a sinusoidal target current.

摘要翻译： 用作有源滤波器的电力转换装置包括用于将DC电力转换为AC电力的单相多路反相器单元和用于控制单相多路反相器单元的控制单元。 单相多路反相器单元包括第一单相逆变器和第二单相逆变器。 提供最大直流电压的第一单相逆变器以从AC电源馈送的AC电压的周期的每半个周期以一个脉冲的速率输出电压脉冲。 控制单元包括一对用于驱动第二单相逆变器的滞后比较器电路，使得AC源电流遵循正弦目标电流。

公开(公告)号：US07485987B2

公开(公告)日：2009-02-03

申请号：US11359962

申请日：2006-02-23

申请人： Osamu Mori ,  Masaki Yamada ,  Akihiko Iwata

发明人： Osamu Mori ,  Masaki Yamada ,  Akihiko Iwata

IPC分类号： H02J1/00

CPC分类号： H02M7/49 ,  Y10T307/609 ,  Y10T307/707

摘要： A power converting device includes a single-phase multiplex converter used as an active filter and a control device. The single-phase multiplex converter includes multiple single-phase inverters connected in series at AC output sides. Each of the single-phase inverters converts DC power fed from a DC power supply into AC power. The control device includes hysteresis comparators and controls output voltage of the single-phase multiplex converter by gradational output voltage control, based on the sum of selectively combined output voltages of the multiple single-phase inverters. The control device controls the single-phase multiplex converter so that an output current follows a harmonic compensation reference current, canceling harmonics leaking from a load to which the power converting device is connected.

摘要翻译： 电力转换装置包括用作有源滤波器的单相多路转换器和控制装置。 单相多路转换器包括在交流输出侧串联连接的多个单相逆变器。 每个单相逆变器将从直流电源馈送的直流电源转换成交流电源。 基于多个单相逆变器的选择性组合输出电压之和，控制装置包括滞环比较器，并通过渐变输出电压控制来控制单相多路转换器的输出电压。 控制装置控制单相多路转换器，使得输出电流遵循谐波补偿参考电流，消除从电力转换装置连接到的负载泄漏的谐波。

公开(公告)号：US20070194627A1

公开(公告)日：2007-08-23

申请号：US11359962

申请日：2006-02-23

申请人： Osamu Mori ,  Masaki Yamada ,  Akihiko Iwata

发明人： Osamu Mori ,  Masaki Yamada ,  Akihiko Iwata

IPC分类号： H02J3/12

CPC分类号： H02M7/49 ,  Y10T307/609 ,  Y10T307/707

摘要： A power converting device includes a single-phase multiplex converter used as an active filter and a control device. The single-phase multiplex converter includes multiple single-phase inverters connected in series at AC output sides. Each of the single-phase inverters converts DC power fed from a DC power supply into AC power. The control device includes hysteresis comparators and controls output voltage of the single-phase multiplex converter by gradational output voltage control, based on the sum of selectively combined output voltages of the multiple single-phase inverters. The control device controls the single-phase multiplex converter so that an output current follows a harmonic compensation reference currents, canceling harmonics leaking from a load to which the power converting device is connected.

摘要翻译： 电力转换装置包括用作有源滤波器的单相多路转换器和控制装置。 单相多路转换器包括在交流输出侧串联连接的多个单相逆变器。 每个单相逆变器将从直流电源馈送的直流电源转换成交流电源。 基于多个单相逆变器的选择性组合输出电压之和，控制装置包括滞环比较器，并通过渐变输出电压控制来控制单相多路转换器的输出电压。 控制装置控制单相多路转换器，使得输出电流遵循谐波补偿参考电流，消除从电力转换装置连接到的负载泄漏的谐波。

公开(公告)号：US08659924B2

公开(公告)日：2014-02-25

申请号：US13128584

申请日：2009-04-08

申请人： Masaki Yamada ,  Akihiko Iwata

发明人： Masaki Yamada ,  Akihiko Iwata

IPC分类号： H02M1/42 ,  H02M7/217

CPC分类号： H02M1/4225 ,  H02M1/12 ,  H02M7/217 ,  Y02B70/126 ,  Y10T307/675

摘要： In a power conversion apparatus that converts AC power to DC power, an inverter circuit including one or more single-phase inverters connected in series with each other is connected in series at the subsequent stage of a rectification of an AC input. At the subsequent stage of the inverter circuit, a smoothing capacitor connected via a rectification diode, and a short-circuiting switch for bypassing the smoothing capacitor are provided. The short-circuiting switch is subjected to ON/OFF control by PWM control such that a voltage of the DC voltage supply of the inverter circuit follows a target voltage. The inverter circuit is subjected to output control such that a DC voltage of the smoothing capacitor follows a target voltage and an input power factor is improved.

摘要翻译： 在将AC电力转换为DC电力的电力转换装置中，在AC输入的整流的后续阶段，串联连接包括串联连接的一个以上的单相逆变器的逆变电路。 在逆变器电路的后续阶段，提供通过整流二极管连接的平滑电容器和用于旁路平滑电容器的短路开关。 短路开关通过PWM控制进行ON / OFF控制，使得逆变器电路的直流电压源的电压跟随目标电压。 对逆变器电路进行输出控制，使得平滑电容器的直流电压跟随目标电压，并且提高输入功率因数。

公开(公告)号：US20110215651A1

公开(公告)日：2011-09-08

申请号：US13128584

申请日：2009-04-08

申请人： Masaki Yamada ,  Akihiko Iwata

发明人： Masaki Yamada ,  Akihiko Iwata

IPC分类号： H02J4/00

CPC分类号： H02M1/4225 ,  H02M1/12 ,  H02M7/217 ,  Y02B70/126 ,  Y10T307/675

摘要： In a power conversion apparatus that converts AC power to DC power, an inverter circuit including one or more single-phase inverters connected in series with each other is connected in series at the subsequent stage of a rectification of an AC input. At the subsequent stage of the inverter circuit, a smoothing capacitor connected via a rectification diode, and a short-circuiting switch for bypassing the smoothing capacitor are provided. The short-circuiting switch is subjected to ON/OFF control by PWM control such that a voltage of the DC voltage supply of the inverter circuit follows a target voltage. The inverter circuit is subjected to output control such that a DC voltage of the smoothing capacitor follows a target voltage and an input power factor is improved.

摘要翻译： 在将AC电力转换为DC电力的电力转换装置中，在AC输入的整流的后续阶段，串联连接包括串联连接的一个以上的单相逆变器的逆变电路。 在逆变器电路的后续阶段，提供通过整流二极管连接的平滑电容器和用于旁路平滑电容器的短路开关。 短路开关通过PWM控制进行ON / OFF控制，使得逆变器电路的直流电压源的电压跟随目标电压。 对逆变器电路进行输出控制，使得平滑电容器的直流电压跟随目标电压，并且提高输入功率因数。

公开(公告)号：US20080192519A1

公开(公告)日：2008-08-14

申请号：US11816456

申请日：2006-02-21

申请人： Akihiko Iwata ,  Makoto Seto ,  Masaki Yamada ,  Shigeki Harada ,  Noriyuki Matsubara ,  Takashi Kumagai

发明人： Akihiko Iwata ,  Makoto Seto ,  Masaki Yamada ,  Shigeki Harada ,  Noriyuki Matsubara ,  Takashi Kumagai

IPC分类号： H02M7/48

CPC分类号： H02J3/383 ,  H02M7/483 ,  H02M2001/007 ,  H02M2001/0077 ,  Y02E10/563

摘要： In a power conversion apparatus that boosts a solar light voltage, converts it to AC and supplies AC power to a load or system, power loss is reduced and efficiency is improved. An inverter unit, in which AC sides of three single-phase inverters receive DC power from respective sources with a voltage ratio of 1:3:9 as respective inputs are connected in series. Gradational output voltage control of an output voltage is carried out using the sum of the respective generated AC voltages. Also, a solar light voltage is boosted by a chopper circuit to generate the highest voltage DC power source. When the solar light voltage exceeds a predetermined voltage, the boosting of the chopper circuit is stopped, thereby reducing power loss due to the boosting.

摘要翻译： 在提高太阳光电压的电力转换装置中，将其转换为交流电并向负载或系统提供AC电力，降低功率损耗并提高效率。 三相单相逆变器的AC侧以相互输入的电压比为1：3：9的各个电源的DC电源串联连接的逆变器单元。 使用各自产生的AC电压的和来执行输出电压的等级输出电压控制。 此外，太阳能光伏电压由斩波电路升压以产生最高电压的直流电源。 当太阳光电压超过预定电压时，斩波电路的升压停止，由此降低由于升压引起的功率损耗。

公开(公告)号：US20100177540A1

公开(公告)日：2010-07-15

申请号：US12715430

申请日：2010-03-02

申请人： Akihiko Iwata ,  Makoto Seto ,  Masaki Yamada ,  Shigeki Harada ,  Noriyuki Matsubara ,  Takashi Kumagai

发明人： Akihiko Iwata ,  Makoto Seto ,  Masaki Yamada ,  Shigeki Harada ,  Noriyuki Matsubara ,  Takashi Kumagai

IPC分类号： H02M7/48

CPC分类号： H02J3/383 ,  H02M7/483 ,  H02M2001/007 ,  H02M2001/0077 ,  Y02E10/563

摘要： In a power conversion apparatus that boosts a solar light voltage, converts it to AC and supplies AC power to a load or system, power loss is reduced and efficiency is improved. An inverter unit, in which AC sides of three single-phase inverters receive DC power from respective sources with a voltage ratio of 1:3:9 as respective inputs are connected in series. Gradational output voltage control of an output voltage is carried out using the sum of the respective generated AC voltages. Also, a solar light voltage is boosted by a chopper circuit to generate the highest voltage DC power source. When the solar light voltage exceeds a predetermined voltage, the boosting of the chopper circuit is stopped, thereby reducing power loss due to the boosting.

摘要翻译： 在提高太阳光电压的电力转换装置中，将其转换为交流电并向负载或系统提供AC电力，降低功率损耗并提高效率。 三相单相逆变器的AC侧以相互输入的电压比为1：3：9的各个电源的DC电源串联连接的逆变器单元。 使用各自产生的AC电压的和来执行输出电压的等级输出电压控制。 此外，太阳能光伏电压由斩波电路升压以产生最高电压的直流电源。 当太阳光电压超过预定电压时，斩波电路的升压停止，由此降低由于升压引起的功率损耗。

公开(公告)号：US07719865B2

公开(公告)日：2010-05-18

申请号：US11816456

申请日：2006-02-21

申请人： Akihiko Iwata ,  Makoto Seto ,  Masaki Yamada ,  Shigeki Harada ,  Noriyuki Matsubara ,  Takashi Kumagai

发明人： Akihiko Iwata ,  Makoto Seto ,  Masaki Yamada ,  Shigeki Harada ,  Noriyuki Matsubara ,  Takashi Kumagai

IPC分类号： H02M7/49

CPC分类号： H02J3/383 ,  H02M7/483 ,  H02M2001/007 ,  H02M2001/0077 ,  Y02E10/563

摘要： In a power conversion apparatus that boosts a solar light voltage, converts it to AC and supplies AC power to a load or system, power loss is reduced and efficiency is improved. An inverter unit, in which AC sides of three single-phase inverters receive DC power from respective sources with a voltage ratio of 1:3:9 as respective inputs are connected in series. Gradational output voltage control of an output voltage is carried out using the sum of the respective generated AC voltages. Also, a solar light voltage is boosted by a chopper circuit to generate the highest voltage DC power source. When the solar light voltage exceeds a predetermined voltage, the boosting of the chopper circuit is stopped, thereby reducing power loss due to the boosting.

摘要翻译： 在提高太阳光电压的电力转换装置中，将其转换为交流电并向负载或系统提供AC电力，降低功率损耗并提高效率。 三相单相逆变器的AC侧以相互输入的电压比为1：3：9的各个电源的DC电源串联连接的逆变器单元。 使用各自产生的AC电压的和来执行输出电压的等级输出电压控制。 此外，太阳能光伏电压由斩波电路升压以产生最高电压的直流电源。 当太阳光电压超过预定电压时，斩波电路的升压停止，由此降低由于升压引起的功率损耗。

公开(公告)号：US07602626B2

公开(公告)日：2009-10-13

申请号：US11816029

申请日：2006-02-21

申请人： Akihiko Iwata ,  Makoto Seto ,  Masaki Yamada ,  Shigeki Harada

发明人： Akihiko Iwata ,  Makoto Seto ,  Masaki Yamada ,  Shigeki Harada

IPC分类号： H02M7/00

CPC分类号： H02M7/53871 ,  H02M7/49 ,  H02M2001/0077 ,  Y10T307/685

摘要： In a power conversion apparatus that boosts a solar light voltage, converts it to AC and supplies AC power to a load or system, a second inverter is connected in series to one of two terminals on the AC side of a first inverter that uses, as its DC source, a DC voltage boosted from a solar light voltage by a chopper circuit. A third inverter is connected in series to the other terminal. Then, output voltages of the second and third inverters are controlled to be equal, and an output voltage is provided by using the sum of the generated voltages of the first, second, and third inverters. Thus, a mid-point potential of the DC power source is made equivalent to an intermediate potential of the output voltage of the power conversion apparatus, that is, the mid-point potential (ground potential) of a system.

摘要翻译： 在升压太阳光电压的电力转换装置中，将其转换为交流电并向负载或系统提供AC电力，第二逆变器串联连接到第一逆变器的AC侧的两个端子中的一个， 其直流电源，通过斩波电路从太阳光电压提升的直流电压。 第三个逆变器串联连接到另一个端子。 然后，将第二和第三变换器的输出电压控制为相等，并且通过使用第一，第二和第三逆变器的发电电压之和来提供输出电压。 因此，直流电源的中点电位等于电力转换装置的输出电压的中间电位，即系统的中点电位（地电位）。

公开(公告)号：US08576593B2

公开(公告)日：2013-11-05

申请号：US13144199

申请日：2009-12-01

申请人： Osamu Mori ,  Toshiyuki Fujii ,  Akihiko Iwata ,  Junichiro Ishikawa ,  Masanori Yasue ,  Yukimori Kishida

发明人： Osamu Mori ,  Toshiyuki Fujii ,  Akihiko Iwata ,  Junichiro Ishikawa ,  Masanori Yasue ,  Yukimori Kishida

IPC分类号： H02M7/08 ,  H02M7/00

CPC分类号： H02M7/219 ,  H02M1/4216 ,  H02M1/4233 ,  Y02B70/126

摘要： A power converting apparatus is configured with single-phase sub-converters (4) connected to AC input lines of individual phases of a three-phase main converter (3) in series therewith. In a control device (12) for performing output control of the power converting apparatus, a current command value calculating circuit (20) which adjusts a DC voltage command given to the main converter (3) so that DC voltages of the sub-converters (4) follow a command and generates AC current commands so that a DC voltage of the main converter (3) follows the DC voltage command is configured with a CPU, and AC currents are controlled by switching output voltage levels of the sub-converters (4) at an AC side thereof so that deviations of instantaneous AC current values from the AC current commands become smaller.

摘要翻译： 电力转换装置配置有与三相主转换器（3）的各相的AC输入线连接的单相子转换器（4）。 在用于进行功率转换装置的输出控制的控制装置（12）中，电流指令值计算电路（20）对主转换器（3）的直流电压指令进行调整，使得副转换器 4）按照命令产生交流电流指令，使得主转换器（3）的直流电压跟随直流电压命令由CPU配置，并且通过切换子转换器（4）的输出电压电平来控制交流电流 ），使得瞬时AC电流值与AC电流指令的偏差变小。