Verfahren und Vorrichtung zur Steuerung der Neutralpunktspannung eines Dreiphasenresonanzgeerdeten Elektrischen Netzes

Details

Veröffentlichungs-Nr.

EP4224651

Aktenzeichen

EP22155214

Anmeldetag

4. Februar 2022

Veröffentlichung

9. August 2023

Rechtsraum

EP

IPC

H02H9/06G01R31/50H02J3/00

Abstract

A method and apparatus for controlling a neutral point voltage of a three-phase resonant-earthed electric network, the apparatus comprising determining means (31) configured to determine a target value for the neutral point voltage of the three-phase resonant-earthed electric network (20), calculating means (31) configured to calculate at least one phase-specific control admittance or a neutral point specific control admittance required for controlling the neutral point voltage of the three-phase resonant-earthed electric network (20) from a prevailing value to the determined target value, and admittance means (30) configured to add the calculated at least one phase-specific control admittance between a ground and a respective phase (A, B, C) of the three-phase resonant-earthed electric network (20) or the calculated neutral point specific control admittance between the ground and a neutral point (21) of the three-phase resonant-earthed electric network (20).

Anmelder

Firma

ABB SCHWEIZ AG

Land

🇨🇭 Schweiz

Fachgebiete