Verfahren, Computerprogramm und Steuergerät zur Steuerung eines Elektrischen Wandlers, Elektrischer Wandler und Computerlesbares Medium

Details

Veröffentlichungs-Nr.

EP4228143

Aktenzeichen

EP22155947

Anmeldetag

9. Februar 2022

Veröffentlichung

2. April 2025

Erteilung

2. April 2025

Rechtsraum

EP

IPC

H02M7/5387H02P23/14

Abstract

A method for controlling an electrical converter (12) for driving an electrical machine (18) comprises the steps of: estimating a stator flux vector (ψ_s) depending on at least one measurement in the electrical converter (12); determining an optimized pulse pattern (OPP) for the electrical converter (12) depending on a reference angular stator frequency ωS*; determining a reference stator angle θS* of the stator flux vector (ψ_s) depending on the reference angular stator frequency ωS*; determining a reference stator flux vector ψS* depending on the optimized pulse pattern (OPP) and the reference stator angle θS*; determining a difference between the reference stator flux vector ψS* and the estimated stator flux vector (ψ_s); modifying switching instants of the optimized pulse pattern (OPP), such that the difference is minimized; and applying at least a part of the modified optimized pulse pattern (OPP) to the electrical converter (12).

Anmelder

Firma

ABB SCHWEIZ AG

Land

🇨🇭 Schweiz

Fachgebiete