公开(公告)号：US10103640B2

公开(公告)日：2018-10-16

申请号：US14624238

申请日：2015-02-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yazhu Zhao ,  Yunfeng Liu ,  Kai Xin

IPC: H02M7/00 ,  H02G5/06 ,  H02M7/537 ,  H05K7/14

Abstract: A power converter, including: at least two inverting modules, where direct current sides of the at least two inverting modules are connected in parallel using a laminated busbar or a circuit board, and the at least two inverting modules run in an interleaved and parallel manner. In the present invention, the power converter is formed by connecting at least two inverting modules in parallel, and the direct current sides of the at least two inverting modules are connected in parallel using the laminated busbar or the circuit board, so that parasitic inductance between inverting modules is small, forming a low parasitic inductance loop. When the at least two inverting modules run in an interleaved and parallel manner, the low parasitic inductance loop counteracts most ripple currents in a circuit, thereby reducing the burden of the ripple currents on a bus capacitor. Therefore, the demand of the power converter provided in the present invention for the bus capacitor is small.

公开(公告)号：US20150236607A1

公开(公告)日：2015-08-20

申请号：US14624238

申请日：2015-02-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yazhu Zhao ,  Yunfeng Liu ,  Kai Xin

IPC: H02M7/00 ,  H05K7/14 ,  H02G5/06 ,  H02M7/537

CPC classification number: H02M7/003 ,  H02G5/06 ,  H02M7/537 ,  H05K7/1427 ,  Y10T307/707

Abstract: A power converter, including: at least two inverting modules, where direct current sides of the at least two inverting modules are connected in parallel using a laminated busbar or a circuit board, and the at least two inverting modules run in an interleaved and parallel manner. In the present invention, the power converter is formed by connecting at least two inverting modules in parallel, and the direct current sides of the at least two inverting modules are connected in parallel using the laminated busbar or the circuit board, so that parasitic inductance between inverting modules is small, forming a low parasitic inductance loop. When the at least two inverting modules run in an interleaved and parallel manner, the low parasitic inductance loop counteracts most ripple currents in a circuit, thereby reducing the burden of the ripple currents on a bus capacitor. Therefore, the demand of the power converter provided in the present invention for the bus capacitor is small.

Abstract translation: 一种功率转换器，包括：至少两个反相模块，其中所述至少两个反相模块的直流侧使用层压母线或电路板并联连接，并且所述至少两个反相模块以交错和并行方式运行 。 在本发明中，功率转换器是通过并联连接至少两个反相模块而形成的，并且至少两个反相模块的直流侧使用叠层母线或电路板并联连接，使得寄生电感 反相模块小，形成低寄生电感回路。 当至少两个反相模块以交错和并行方式运行时，低寄生电感环路抵消电路中的大多数纹波电流，从而减少总线电容器上纹波电流的负担。 因此，本发明提供的用于总线电容器的功率转换器的需求很小。