公开(公告)号：US20150333612A1

公开(公告)日：2015-11-19

申请号：US14443284

申请日：2012-11-15

Applicant: ABB TECHNOLOGY LTD

Inventor： Jean-Philippe HASLER ,  Mauro MONGE

IPC: H02M1/12

CPC classification number: H02J3/01 ,  H02M1/12 ,  H02M7/483 ,  H02M7/493 ,  H02M2007/4835

Abstract: An apparatus and a method for filtering harmonics in a power transmission contact line of a railway system includes a multilevel converter multilevel converter having one single phase leg, which phase leg comprises switching cells, each switching cell comprises semi-conductor switches arranged to selectively provide a connection to a corresponding energy storage element. The multilevel converter also includes a controller provided to control the switching of each switching cell, and wherein the phase leg is configured in two parallel branches of cascaded switching cells, which branches is interconnected in a closed circuit. The controller is provided to monitor the content of harmonics in the contact line, and is adapted to filter the monitored harmonics by means of adapting the switching of the switching cells to absorb the harmonics.

Abstract translation: 用于滤波铁路系统的输电接触线路中的谐波的装置和方法包括具有一个单相支路的多电平转换器多电平转换器，该相位支路包括开关单元，每个开关单元包括半导体开关，其布置成选择性地提供 连接到相应的能量存储元件。 所述多电平转换器还包括控制器，用于控制每个开关电池的开关，并且其中所述相支路配置在级联开关单元的两个并联支路中，所述支路在闭合电路中互连。 提供控制器以监测接触线中的谐波的内容，并且适于通过适配开关单元的切换以吸收谐波来对所监视的谐波进行滤波。