Zustandsüberwachung von Erregerloser Synchronmaschine

Details

Veröffentlichungs-Nr.

EP3595167

Aktenzeichen

EP18182814

Anmeldetag

11. Juli 2018

Veröffentlichung

1. Dezember 2021

Erteilung

1. Dezember 2021

Rechtsraum

EP

IPC

H02K19/12H02K19/28H02K11/042H02P29/024H02P9/30H02P25/03

Abstract

A method of detecting a fault condition in an excitation system of an exciterless synchronous machine comprising a stator; and a rotor provided with a field winding, wherein the rotor has an excitation system including: excitation coils configured to harvest energy in a gap between the stator and the rotor, diodes forming diode rectifiers configured to rectify current from respective excitation coils to obtain a rectified current, a smoothing capacitor configured to smooth the rectified current to obtain a smoothed current, and a power converter configured to be fed with the smoothed current and to energise the field winding, wherein the method comprises: obtaining (Si) a measurement of at least one of a first electrical parameter and a second electrical parameter, measured between the diode rectifiers and the power converter, and determining (S2) whether a fault condition is present in at least one of a diode and the smoothing capacitor, wherein the determining of the fault condition in one of the diodes is based on the measurement of the first electrical parameter and/or the second electrical parameter, and wherein the determining of the fault condition of the smoothing capacitor is based on the measurement of the second electrical parameter.

Anmelder

Firma

ABB Schweiz AG

Land

🇨🇭 Schweiz

Fachgebiete