公开(公告)号：US20040066253A1

公开(公告)日：2004-04-08

申请号：US10266455

申请日：2002-10-08

Applicant: ABB Oy

Inventor： Pasi Matti Lauri

IPC: H02J001/02 ,  H03H007/00

CPC classification number: H02M1/126 ,  H02J3/01 ,  Y02E40/40

Abstract: A filter for mitigating harmonics in an electrical distribution system. In one embodiment the filter has one winding that is connected to the power distribution system which may be a three phase system and capacitors are connected to other end of the winding in either a delta or y-connection. There is one tapping on the winding for connection to a load which may an adjustable speed drive. In another embodiment the filter has two or more separate reactors. In either embodiment a switch may be in series with the capacitors and capacitors may be connected in parallel with the series combination of switch and capacitors.

Abstract translation: 用于减轻配电系统中谐波的滤波器。 在一个实施例中，滤波器具有连接到配电系统的一个绕组，该配电系统可以是三相系统，并且电容器以三角形或y形连接的方式连接到绕组的另一端。 绕组上有一个开关连接到可调速驱动器的负载上。 在另一个实施方案中，过滤器具有两个或更多个单独的反应器。 在任一实施例中，开关可以与电容器串联，并且电容器可以与开关和电容器的串联组合并联连接。