公开(公告)号：US20220158553A1

公开(公告)日：2022-05-19

申请号：US17665590

申请日：2022-02-07

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Tadashi SADOHARA ,  Masakazu MIYAMOTO

IPC: H02M3/156 ,  H02M1/08 ,  H02M3/07

Abstract: The DC-DC converter may be configured to perform DC-DC power conversion between a primary side and a secondary side. The DC-DC converter may include: a reactor; a switching element configured to switch between an on period for accumulating a first energy in the reactor from the primary side and an off period for releasing the first energy from the reactor to the secondary side, causing a switch voltage acting on the switching element to rise during the off period; a first capacitor; and a second capacitor. The second capacitor may be configured to: accumulate a charge provided from the primary side during the off period; and transfer the charge to the first capacitor during the on period. The first capacitor may be configured to suppress, using the charge transferred from the second capacitor, the rise of the switch voltage after the switching element is switched back to the off period.

公开(公告)号：US20140319920A1

公开(公告)日：2014-10-30

申请号：US14259154

申请日：2014-04-23

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Takashi KUBOYAMA ,  Sadao ISHII ,  Hirotaka TOUJINBARA ,  Tadashi SADOHARA

IPC: H02J3/38

CPC classification number: H02J3/385 ,  Y02E10/58 ,  Y10T307/707

Abstract: A grid interconnection apparatus includes a voltage conversion section including DC/DC converters to step up or down output voltages of DC power sources. The voltage conversion section combines DC power outputs from the DC/DC converters into combined DC power and output the DC power. A power conversion section converts the DC power output from the voltage conversion section into AC power, and outputs the AC power to a power grid. A current detector detects a current input into the power conversion section. A voltage detector detects a voltage input into the power conversion section. A controller controls the DC/DC converters to maximize the power outputs from the DC power sources based on the detected current and the detected voltage.

Abstract translation: 电网互连装置包括电压转换部分，其包括用于升压或降低直流电源的输出电压的DC / DC转换器。 电压转换部分将DC / DC转换器的直流电源输出组合成直流电，并输出直流电源。 电力转换部将从电压变换部输出的直流电力转换为交流电力，将交流电力输出到电网。 电流检测器检测到电力转换部分的电流输入。 电压检测器检测输入到电力转换部分的电压。 控制器控制DC / DC转换器，以根据检测到的电流和检测到的电压最大化来自直流电源的功率输出。

公开(公告)号：US20160268895A1

公开(公告)日：2016-09-15

申请号：US15162621

申请日：2016-05-24

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Tadashi SADOHARA ,  Seiji HASHIMOTO

IPC: H02M3/156 ,  H02M1/34 ,  H02M1/08

CPC classification number: H02M3/156 ,  H02M1/08 ,  H02M1/34 ,  H02M3/07 ,  H02M3/158 ,  H02M3/1584 ,  H02M2001/342 ,  Y02B70/1491

Abstract: A DC-to-DC converter includes an input terminal connected to a DC power source. An output terminal is connected to a load. A reactor is disposed between the input terminal and the output terminal. A blocking diode is connected in series to the reactor. A switching element has one end connected between the reactor and the blocking diode. A boost chopper circuit boosts an input voltage to generate an output voltage. A first reactor is disposed between the input terminal and the one end. A first capacitor is disposed between the first reactor and the switching element and connected in series to the first reactor. A first diode includes an anode terminal and a cathode terminal. The anode terminal is connected to a connection portion of the first reactor and the first capacitor. The cathode terminal is connected to the output terminal.

Abstract translation: DC-DC转换器包括连接到DC电源的输入端。 输出端子连接到负载。 反应器设置在输入端子和输出端子之间。 阻塞二极管与电抗器串联连接。 开关元件的一端连接在电抗器和阻塞二极管之间。 升压斩波电路提高输入电压以产生输出电压。 第一反应器设置在输入端和一端之间。 第一电容器设置在第一反应器和开关元件之间并与第一反应器串联连接。 第一二极管包括阳极端子和阴极端子。 阳极端子连接到第一电抗器和第一电容器的连接部分。 阴极端子连接到输出端子。