-
公开(公告)号：US20140159698A1
公开(公告)日：2014-06-12
申请号：US14058301
申请日：2013-10-21
Applicant: KABUSHIKI KAISHA YASKAWA DENKI
Inventor： Takahiro UCHINO , Ryo OHIRA
IPC: H02M5/293
Abstract: A matrix converter includes input terminals, output terminals, a power conversion circuit, and a snubber circuit. The power conversion circuit includes bidirectional switches of which each includes antiparallel connection circuits connected serially. The snubber circuit is connected to the bidirectional switches. The snubber circuit includes first diodes, a capacitor, a second diode, and third diodes. The first diodes are respectively corresponded to the bidirectional switches. A first connecting point of each the first diode is connected to a connection point between the two unidirectional switching elements constituting the bidirectional switch. A first connecting point of the capacitor is connected to a second connecting point of each the first diode. First and second connecting points of the second diode are connected to a second connecting point of the capacitor and the corresponding output terminal. The bidirectional switches, the first diodes, and the second diode are arranged in one power module.
Abstract translation: 矩阵转换器包括输入端子，输出端子，功率转换电路和缓冲电路。 电力转换电路包括双向开关，每个开关包括串联连接的反并联连接电路。 缓冲电路连接到双向开关。 缓冲电路包括第一二极管，电容器，第二二极管和第三二极管。 第一个二极管分别对应于双向开关。 每个第一二极管的第一连接点连接到构成双向开关的两个单向开关元件之间的连接点。 电容器的第一连接点连接到每个第一二极管的第二连接点。 第二二极管的第一和第二连接点连接到电容器和相应的输出端子的第二连接点。 双向开关，第一二极管和第二二极管被布置在一个功率模块中。
-
Patent Agency Ranking
公开(公告)号：US20220069721A1
公开(公告)日：2022-03-03
申请号：US17460331
申请日：2021-08-30
Applicant: KABUSHIKI KAISHA YASKAWA DENKI
Inventor： Hirotaka KARAKAMA , Takahiro UCHINO , Keisei INOKI , Masashiro TANAKA
Abstract: A power conversion apparatus includes: matrix converter circuitry configured to perform bidirectional power conversion between a primary side and a secondary side; and control circuitry configured to: select a first control mode in response to determining that a command-primary frequency difference between a command frequency and a primary side frequency of the matrix converter circuitry is above a predetermined threshold, wherein the first control mode includes causing a secondary side frequency of the matrix converter circuitry to follow the command frequency; select a second control mode in response to determining that the command-primary frequency difference is below the threshold, wherein the second control mode includes maintaining a primary-secondary phase difference between a secondary side phase and a primary side phase of the matrix converter circuitry within a predetermined target range; and control the matrix converter circuitry in accordance with a selection of the first control mode or the second control mode.
-
公开(公告)号：US20150003136A1
公开(公告)日：2015-01-01
申请号：US14303567
申请日：2014-06-12
Applicant: KABUSHIKI KAISHA YASKAWA DENKI
Inventor： Kentaro INOMATA , Hidenori HARA , Takahiro UCHINO
IPC: H02M5/293
Abstract: A matrix converter according to an embodiment includes a voltage command corrector and a drive signal generator. The voltage command corrector corrects the magnitude of an output voltage command on the basis of amplitude variations of an input current from an AC power supply to a power converter, the amplitude variations being caused by a ripple component of the input current. The drive signal generator generates drive signals that turn ON/OFF a plurality of bidirectional switches on the basis of the output voltage command corrected by the voltage command corrector.
Abstract translation: 根据实施例的矩阵转换器包括电压指令校正器和驱动信号发生器。 电压指令校正器基于从AC电源到功率转换器的输入电流的幅度变化来校正输出电压命令的幅度，该幅度变化由输入电流的纹波分量引起。 驱动信号发生器基于由电压指令校正器校正的输出电压指令生成导通/关断多个双向开关的驱动信号。
-
公开(公告)号：US20220069724A1
公开(公告)日：2022-03-03
申请号：US17460334
申请日：2021-08-30
Applicant: KABUSHIKI KAISHA YASKAWA DENKI
Inventor： Hirotaka KARAKAMA , Keisei INOKI , Yoichi YANO , Takahiro UCHINO , Toshihiro HANADA
Abstract: A power conversion apparatus includes: matrix converter circuitry configured to perform bidirectional power conversion between a primary side and a secondary side; and control circuitry configured to: calculate a deterioration level based on a secondary side current of the matrix converter circuitry, a carrier frequency, and a primary-secondary frequency difference between a primary side frequency and a secondary side frequency of the matrix converter circuitry; and output a deterioration notification in response to determining that the deterioration level exceeds a predetermined level.
-
公开(公告)号：US20170077828A1
公开(公告)日：2017-03-16
申请号：US15343212
申请日：2016-11-04
Applicant: KABUSHIKI KAISHA YASKAWA DENKI
Inventor： Takayuki MORIHARA , Takahiro UCHINO , Masahiro TSURUTA , Shigekatsu NAGATOMO , Yuto KUBO
Abstract: A matrix converter includes a plurality of first bidirectional switches electrically connected to each of input phases of an AC power supply and each of output phases of a load, respectively, and a plurality of second bidirectional switches electrically connected to each of the input phases and each of the output phases, respectively. The first bidirectional switch and the second bidirectional switch are electrically connected in parallel to one of the input phases and one of the output phases.
Abstract translation: 矩阵转换器包括多个第一双向开关，分别电连接到AC电源的每个输入相和负载的每个输出相，以及多个第二双向开关，其电连接到每个输入相和每个 的输出相位。 第一双向开关和第二双向开关并联电连接到一个输入相和一个输出相。
-
公开(公告)号：US20150372609A1
公开(公告)日：2015-12-24
申请号：US14744038
申请日：2015-06-19
Applicant: KABUSHIKI KAISHA YASKAWA DENKI
Inventor： Takayuki MORIHARA , Takahiro UCHINO , Masahiro TSURUTA , Shigekatsu NAGATOMO , Yuto KUBO
IPC: H02M5/293
Abstract: A capacitor module applicable in a matrix convertor includes a module cover and a plurality of terminals. The module cover houses a plurality of AC capacitors. The plurality of terminals are disposed at least on a first side and a second side of the module cover in a widthwise direction of the module cover, and protrude from a bottom surface of the module cover.
Abstract translation: 适用于矩阵转换器的电容器模块包括模块盖和多个端子。 模块盖容纳多个交流电容器。 多个端子至少在模块盖的宽度方向上设置在模块盖的第一侧和第二侧上，并且从模块盖的底面突出。
-
-
-
-
-
Search Results
6
records
(took 0.013 seconds)
