Kaskadierte Umrichter für Wasserstoffelektrolyse
Vorteile kaskadierter Umrichter
- Austauschbare identische Module
- Kein 50 Hz Transformator
- Volumen- und Kostenreduktion
Forschungsschwerpunkte
- 22 kW LLC Konverter auslegen
- Wirkungsgradoptimierung
- Variable Ausgangsleistung
- Echtzeitfähige Regelung
Publikationen
| [1] | R. Unruh, J. Lange, F. Schafmeister and J. Böcker "Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions," 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe), Ghent, Belgium, 2021. |
| [2] | R. Unruh, F. Schafmeister and J. Böcker "Zero-Sequence Voltage Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale Electrolyzers by 40%," 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe), Hanover, Germany, 2022. |
| [3] | R. Unruh, J. Böcker and F. Schafmeister "An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors," 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe), Aalborg, Denmark, 2023. |
| [4] | R. Unruh, J. Böcker and F. Schafmeister "Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter," Energy Conversion Congress & Expo Europe (ECCE Europe), Darmstadt, Germany, 2024. |
| [5] | R. Unruh, J. Böcker and F. Schafmeister "Adaptive DC-Link Voltage Control for 22 kW, 40 kHz LLC Resonant Converter Considering Low-Frequency Voltage Ripple." Electronics 14.8 (2025). |
