公开(公告)号：US11239764B2

公开(公告)日：2022-02-01

申请号：US17323456

申请日：2021-05-18

Applicant: ABB Schweiz AG

Inventor： Lennart Harnefors ,  Massimo Bongiorno ,  Xiongfei Wang

IPC: H02M7/44 ,  G05B13/04 ,  H03L7/08

Abstract: A voltage-source converter, VSC, control system including 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 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 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 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.

公开(公告)号：US20210367529A1

公开(公告)日：2021-11-25

申请号：US17323456

申请日：2021-05-18

Applicant: ABB Schweiz AG

Inventor： Lennart Harnefors ,  Massimo Bongiorno ,  Xiongfei Wang

IPC: H02M7/44 ,  H03L7/08 ,  G05B13/04

Abstract: A voltage-source converter, VSC, control system including 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 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 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 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.