Bestimmung des Wicklungswiderstandes

Details

Veröffentlichungs-Nr.

EP4800915

Anmeldetag

28. Februar 2025

Veröffentlichung

2. September 2026

Rechtsraum

EP

Abstract

It is described a method and arrangement of determining a resistance (R) of at least one multi-phase stator winding set (7) of an electrical generator (4), in particular permanent magnet generator, the method comprising: operating the generator (4) by performing closed loop current control (11) including to receive a reference stator winding current (12) and an actual stator winding current (13, 13'), in particular respective d-component and q-component in a rotor fixed dq-frame; supplying, for a selected time interval (t0-t1), to the current control, a modified actual stator winding current (13') being different from the actual stator winding current (13) by a current modification quantity (34, 15); determining the resistance (R) of the stator winding set (7) based on at least one component of an actual stator winding current (i_alpha_dc) or the current modification quantity (i_dc) and at least one component of a stator winding voltage (u_alpha).

Anmelder

Firma

Siemens Gamesa Renewable Energy A/S

Land

🇩🇰 Dänemark