Steuersystem mit Konfiguration zur Steuerung eines Wandlers und Verfahren dafür

Details

Veröffentlichungs-Nr.

EP4350928

Aktenzeichen

EP22200358

Anmeldetag

7. Oktober 2022

Veröffentlichung

10. April 2024

Rechtsraum

EP

IPC

H02J3/38H02M7/5387

Abstract

A control system for controlling a converter is provided. The system is configured to decompose a PCC voltage vector, EMF vector, and a vector representative of a impedance into, corresponding, positive and negative sequence vectors, calculate positive and negative sequence vectors of a reference current, transform the positive and negative sequence vectors of the reference current into a three-phase reference frame to obtain a vector of reference currents for three phases. The system comprises an EMF-limiter configured to, if one or more phase currents of the phase currents vector is determined to exceed a predetermined current limit, limit at least one of the positive and negative sequence vectors such that the resulting one or more phase currents is reduced below said predetermined current limit. The system is configured to calculate a reference voltage based at least on the EMF vector output from the EMF-limiter.

Anmelder

Firma

Hitachi Energy Ltd

Land

🇨🇭 Schweiz

Fachgebiete