Energiesysteme

Details

Veröffentlichungs-Nr.

EP3522360

Aktenzeichen

EP18155043

Anmeldetag

5. Februar 2018

Veröffentlichung

5. Juli 2023

Erteilung

5. Juli 2023

Rechtsraum

EP

IPC

H02P3/22H02P9/00

Abstract

A method of controlling a power system is described. The power system includes an electrical machine, e.g., wind turbine generator, a power converter and a DC circuit. A dynamic braking system (or DBS) includes a braking circuit connected in series to the DC circuit. The braking circuit includes a braking resistor and a chopper. The method comprising the steps of: operating the DBS and controlling operation of the electrical machine based on a prevailing temperature of the braking circuit. The method can further comprise the step of stopping the electrical machine. The electrical machine can be controlled to be restarted at its rated output power once the prevailing temperature of the braking resistor reaches or falls below a lower temperature threshold. Alternatively, the electrical machine can be restarted at a lower output power and, after restarting, its output power can be increased based on a power starting profile as the braking resistor cools.

Anmelder

Firmen

GE Energy Power Conversion Technology Ltd
GE Energy Power Conversion Technology Limited

Land

🇬🇧 Großbritannien

Fachgebiete