Verfahren zum Durchfahren von Unterspannung (lvrt) für eine Elektrolyseanlage

Details

Veröffentlichungs-Nr.

EP4636969

Aktenzeichen

EP24171068

Anmeldetag

18. April 2024

Veröffentlichung

22. Oktober 2025

Rechtsraum

EP

IPC

H02J1/14C25B1/04C25B15/02H02J1/08H02J4/00

Abstract

An electrolyser plant (1A) is described. The electrolyser plant (1A) includes a first DC link (8) with at least one DC link capacitor (C1) and an AC/DC power converter (6). An electrolyser (10) is electrically connected to the first DC link (8) and adapted to receive a load current. During normal operation of the AC power network (2), a controller (12) is adapted to maintain a pre-event DC link voltage and supply a pre-event load current to the electrolyser (10). In response to a detected low voltage event, the controller (12) is adapted to: (a) initially supply the pre-event load current to the electrolyser (10) to maintain normal operation of the electrolyser (10), (b) monitor the DC link voltage, e.g., the voltage in the first DC link (8), and (c) if the monitored DC link voltage falls below a first voltage threshold that is less than the pre-event DC link voltage, reduce the load current supplied to the electrolyser (10), optionally by ramping down the load current at a suitable ramp rate.

Anmelder

Firma

GE Energy Power Conversion Technology Limited

Land

🇬🇧 Großbritannien

Fachgebiete