Bestimmung einer Trägheitskonstante einer Synchronmaschine

Details

Veröffentlichungs-Nr.

EP4804399

Anmeldetag

6. März 2025

Veröffentlichung

9. September 2026

Rechtsraum

EP

IPC

H02P23/14

Abstract

A method for determining at least one parameter of a synchronous machine (100) including a rotor (120) and a stator (110), the parameter including at least an inertia constant of the synchronous machine, comprises driving (S1001) the rotor at a substantially constant driving torque; adding (S1002) a disturbance signal causing an oscillation in an active electrical power (P<e>) output by the synchronous machine and a variation in an electrical angular speed of the rotor; for each phase, measuring (S1003) a stator voltage and a stator current of the stator of the synchronous machine; for each phase, determining (S1004) an internal electromotive force, EMF, using the stator voltages and the stator currents; determining (S1005) the electrical angular speed of the rotor using the EMFs; determining (S1006) the active electrical power (P<e>) of the synchronous machine using the stator voltages and the stator currents; and determining (S1007) the inertia constant from the determined active electrical power (P<e>) and the determined electrical angular speed. A parameter estimator (200) may be used to implement the method.

Anmelder

Firma

ABB SCHWEIZ AG

Land

🇨🇭 Schweiz

Fachgebiete