Drehzahlsteuerungsvorrichtung und Betriebsverfahren

Details

Veröffentlichungs-Nr.

EP2806554

Aktenzeichen

EP14169706

Anmeldetag

23. Mai 2014

Veröffentlichung

5. Juli 2017

Erteilung

5. Juli 2017

Rechtsraum

EP

IPC

H02P21/00H02P25/02

Abstract

According to one embodiment, there is provided a variable speed control apparatus applied to a variable speed system of secondary excitation including a double feed synchronous machine (1) mechanically connected to a motor and a frequency converter (4) configured to supply a current to a secondary winding of the double feed synchronous machine (1). The variable speed control apparatus includes a secondary current controller (7) configured to control an output current from the frequency converter (4), and a secondary current limiter (21) configured to limit an effective component current command and a reactive component current command of a secondary current for the secondary current controller (7) by using a given secondary current limit value and output a limited result to the secondary current controller (7).

Anmelder

Firma

Kabushiki Kaisha Toshiba

Land

🇯🇵 Japan

Fachgebiete