Einschätzung des aktuellen Drehmoments in einem Elektromotorantrieb

Details

Veröffentlichungs-Nr.

EP2464002

Aktenzeichen

EP10194311

Anmeldetag

9. Dezember 2010

Veröffentlichung

16. Mai 2018

Erteilung

16. Mai 2018

Rechtsraum

EP

IPC

H02P21/00H02P21/20H02P21/14

Abstract

It is presented a control device for driving an electric motor, wherein a drive control signal for the electric motor is arranged to be determined using a calculated rotor flux. A direct quadrature, dq, coordinate system relating to a rotor of the electric motor is used. The control device comprises a flux estimator arranged to determine the calculated rotor flux using a quadrature axis voltage, a measured direct axis current, a measured quadrature axis current, an angular velocity, stator resistance and a direct axis inductance and an actual torque calculator arranged to obtain an actual torque estimation using the calculated rotor flux, the measured direct axis current and the measured quadrature axis current. A corresponding method is also presented.

Anmelder

Firmen

Inmotion Technologies AB
Danaher Motion Stockholm AB

Land

🇸🇪 Schweden

Fachgebiete