公开(公告)号：US09876358B2

公开(公告)日：2018-01-23

申请号：US14895112

申请日：2013-06-07

Applicant: ABB Technology Ltd

Inventor： Frans Dijkhuizen ,  Alireza Nami ,  Hector Zelaya De La Parra ,  Christopher Townsend

IPC: H02J3/32 ,  H02J3/18 ,  H02M7/483

CPC classification number: H02J3/18 ,  H02J3/1857 ,  H02J3/32 ,  H02M2007/4835 ,  Y02E40/26

Abstract: A converter arrangement and a method of controlling a three-phase converter arrangement connected to a transmission grid are provided. The converter arrangement includes three phase legs and an energy transfer circuit. The method includes providing a varying respective output phase voltage to the transmission grid by selecting energy storage elements of both the phase legs and the energy transfer circuit and connecting the selected energy storage elements to the transmission grid output. The method further includes selecting energy storage elements for performing a transfer of energy between the energy storage elements during the control period.