公开(公告)号：US20240204650A1

公开(公告)日：2024-06-20

申请号：US18556313

申请日：2022-04-19

Applicant: ABB Schweiz AG

Inventor： Ioannis Tsoumas ,  Georgios Darivianakis ,  Daniel Ulmer

IPC: H02M1/12 ,  H02J3/01 ,  H02J3/36 ,  H02J3/38

CPC classification number: H02M1/12 ,  H02J3/01 ,  H02J3/36 ,  H02J3/38 ,  H02J2300/28

Abstract: The present disclosure provides a method for controlling an energy conversion system. The system includes a rotating electrical machine, a machine-side converter, a DC-link, and a grid-side converter. The method includes modulating the machine-side converter for converting an AC voltage of the rotating electrical machine into a DC voltage supplied to the DC-link, and modulating the grid-side converter to convert a DC-link voltage at the DC-link into an AC output voltage to be supplied to an electrical grid, wherein the machine-side converter is modulated with first optimized pulse patterns, which have been optimized such that a peak value of the DC-link voltage or of a DC-link voltage component of the DC-link voltage is constrained to a predetermined value.