Fehlerisolation für Impulsbreitenmodulierte Dreiphasenmotorsysteme

Details

Veröffentlichungs-Nr.

EP3599716

Aktenzeichen

EP19187002

Anmeldetag

18. Juli 2019

Veröffentlichung

26. Mai 2021

Erteilung

26. Mai 2021

Rechtsraum

EP

IPC

H02P29/024// G01R31/00H02G1/00

Abstract

A system and a method of isolating a fault in an electric motor system having a motor drive electronics (MDE) component (210) that is configured to drive an electric motor (130) with a plurality of phases, the MDE executing a method of isolating the fault that includes applying an excitation to a first phase and a second phase of the electric motor (130) in a first direction and sensing a phase current value for each phase phases of the electric motor (130). The method also includes providing an excitation, for the first and second phase in an opposite direction of the first direction and measuring a phase current value for each phase. The applying, sensing, providing and measuring is repeated for every possible combination of phases of the electric motor. Finally, the method includes isolating the fault within the electric motor system based on the sensed and measured current values.

Anmelder

Firma

Hamilton Sundstrand Corporation

Land

🇺🇸 USA

Fachgebiete