Verfahren und Vorrichtung zur Überwachung des Zustands eines Motors

Details

Veröffentlichungs-Nr.

EP4050354

Aktenzeichen

EP21305220

Anmeldetag

25. Februar 2021

Veröffentlichung

1. Januar 2025

Erteilung

1. Januar 2025

Rechtsraum

EP

IPC

G01R31/34G01R31/327

Abstract

The present invention concerns a method and a device for monitoring the condition of a motor, the motor being driven by a power source that provides signals to the motor. The invention:- senses a motor signal,- detects predetermined operating conditions of the motor, and if the motor operates in predetermined conditions:- detects the instants of zero-crossing of the sensed signal,- determines the time intervals between two zero-crossing instants,- estimates plural envelopes of the determined time intervals in order to obtain an estimated pattern of envelopes, each envelope being determined over a number of determined time intervals,- determines from the operating conditions of the motor and the pattern of envelopes if the motor has a fault and/or a level of the fault.

Anmelder

Firmen

Mitsubishi Electric R & D Centre Europe B.V.
Mitsubishi Electric Corporation

Land

🇳🇱 Niederlande

Fachgebiete