公开(公告)号：US20230344364A1

公开(公告)日：2023-10-26

申请号：US17998793

申请日：2021-05-28

Applicant: General Electric Technology GmbH

Inventor： Pablo BRIFF ,  Andrzej ADAMCZYK ,  Sameer SINGHAL

IPC: H02M7/483 ,  H02M1/00

CPC classification number: H02M7/4835 ,  H02M1/0025 ,  H02M1/0012

Abstract: A voltage source converter includes first and second DC terminals which have at least one converter limb extending therebetween. Each limb portion includes a chain-link converter that extends between an associated AC terminal and a corresponding one of the first or the second DC terminal. Each chain-link converter also includes a chain-link converter controller which is programmed to control a series of connected chain-link modules. The voltage source converter additionally includes a voltage source converter controller which is arranged in operative communication with each chain-link converter controller to coordinate operation of the chain-link converters. Each chain-link converter controller is further programmed to reconstruct from a received modulation index demand the chain-link converter voltage reference, which the chain-link converter it is controlling is required to produce, by multiplying the received modulation index demand by a total voltage sum established at a first time instant.