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

CPC classification number: H02M5/293 ,  H02M1/12 ,  H02M5/297

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。