A CONTROL SYSTEM CONFIGURED FOR, AND A METHOD FOR, CONTROLLING A CONVERTER

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 cu...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Christe, Alexandre, Shchetinin, Dmitry, Larsson, Mats
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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.