Mehrstufige Elektrische Stromversorgung für eine Elektrolyseanlage

Details

Veröffentlichungs-Nr.

EP4525283

Aktenzeichen

EP23197751

Anmeldetag

15. September 2023

Veröffentlichung

19. März 2025

Rechtsraum

EP

IPC

H02M1/00H02M1/36H02M7/517

Abstract

The invention relates to a multi-stage electrical power supply 120 for an electrolysis system 100, wherein an electrolyser 110 has an input voltage operating range, and the multi-stage electrical power supply 120 comprises a controller unit 124, at least a first and a second power conversion unit 127,128 connectable to an input 111 of the electrolyser 110, and DC-link capacitors 133, 134, wherein the first power conversion unit 127 has a first output voltage operating range that comprises a first subset of the input voltage operating range of the electrolyser 110 above and equal to a threshold output voltage of the first power conversion unit 127, the second power conversion unit 128 has a second output voltage operating range that comprises a second subset of said input voltage operating range below said threshold output voltage, the first and second output voltage operating ranges only together completely comprise the input voltage operating range of the electrolyser 110, the first power conversion unit 127 comprises a main AC-DC converter unit having a first converter output 132 connected to the DC-link capacitors 133, 134, and being configured to provide electrical power required by the electrolyser 110 for the first subset of the input voltage operating range via the first converter output 132 when an output voltage at the first converter output is above or equal to the threshold output voltage, and the second power conversion unit 128 has a second converter output 135 and provides electrical power for the second subset of the input voltage operating range when the voltage at the first converter output 132 is below the threshold output voltage, which is a minimum output voltage threshold of the first power conversion unit 127, and wherein the controller unit 124 selects the second power conversion unit 128 instead of the first to provide power to the electrolyser input 111 when the voltage at the first converter output is below the threshold.

Anmelder

Firma

Siemens Energy Global GmbH & Co. KG

Land

🇩🇪 Deutschland

Fachgebiete