Kurzschlusserkennung in einem Bifilären Elektrischen Antriebssystem

Details

Veröffentlichungs-Nr.

EP4810972

Anmeldetag

16. Februar 2026

Veröffentlichung

23. September 2026

Rechtsraum

EP

IPC

G01R31/34

Abstract

A method for detecting a fault in a bifilar electric machine (2, 2') comprises: operating (S1) the electric machine (2, 2') with a pulse-width modulated voltage supply using a switching frequency fsw; measuring (S2) at least one phase current of at least one phase (U, V, W) of the electric machine (2, 2') during the operation of the electric machine (2, 2'); analyzing (S3) a frequency band (FB) of the at least one phase current of the at least one phase (U, V, W) around the switching frequency fsw or around an integer multiple of the switching frequency fsw to obtain a value; and comparing (S4) the value with a threshold to detect a fault if the value exceeds the threshold.

Anmelder

Firma

Rolls-Royce Deutschland Ltd & Co KG

Land

🇩🇪 Deutschland

Fachgebiete