公开(公告)号：EP3916985A1

公开(公告)日：2021-12-01

申请号：EP20176272.1

申请日：2020-05-25

Applicant: ABB Schweiz AG

Inventor： HARNEFORS, Lennart ,  BONGIORNO, Massimo ,  WANG, Xiongfei

IPC: H02M7/48 ,  H02M1/12 ,  H02J3/24

Abstract: The present invention relates to a voltage-source converter, VSC, control system comprising an active damper, AD, a direct-voltage controller, DVC, and an alternating-voltage controller, AVC. The VSC control system is configured to control a VSC. The AVC (1) is configured to regulate, using an integrator, an ac-bus voltage of the VSC by calculating a q component of a current reference vector for the VSC. The DVC (2) is configured to regulate, using an integrator, a dc-bus voltage of the VSC by calculating a d component of the current reference vector. The AD (3) is configured to amplify a vectoral difference between the ac-bus voltage and a corresponding reference, and to add the q component of the amplified vectoral difference to the q component of the current reference vector and to an input of the integrator of the AVC.