Roland Unruh

Leistungselektronik und Elektrische Antriebstechnik (LEA)
unruh@lea.uni-paderborn.de
ID
34289

9 Publications

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[9]
2023 | Conference Paper | LibreCat-ID: 48352
Unruh, R., Böcker, J., & Schafmeister, F. (2023). An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors. 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe). 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe), Aalborg, Denmark. https://doi.org/10.23919/epe23ecceeurope58414.2023.10264313
LibreCat | DOI | Download (ext.)
 
[8]
2022 | Conference Paper | LibreCat-ID: 34176
Unruh, R., Schafmeister, F., & Böcker, J. (2022). 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). 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), Hanover, Germany.
LibreCat | Download (ext.)
 
[7]
2021 | Conference Paper | LibreCat-ID: 29938
Unruh, R., Lange, J., Schafmeister, F., & Böcker, J. (2021). 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). 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), Ghent, Belgium. https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542
LibreCat | DOI | Download (ext.)
 
[6]
2021 | Conference Paper | LibreCat-ID: 29899
Rehlaender, P., Unruh, R., Hankeln, L., Schafmeister, F., & Böcker, J. (2021). Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration. 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe). 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), Ghent, Belgium. https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674
LibreCat | DOI | Download (ext.)
 
[5]
2021 | Conference Paper | LibreCat-ID: 29893
Rehlaender, P., Unruh, R., Schafmeister, F., & Böcker, J. (2021). Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses to Reduce Thermal Imbalances. 2021 IEEE Applied Power Electronics Conference and Exposition (APEC). 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), Phoenix, AZ, USA. https://doi.org/10.1109/apec42165.2021.9487104
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[4]
2020 | Conference Paper | LibreCat-ID: 29939
Unruh, R., Schafmeister, F., & Böcker, J. (2020). Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design. 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe). 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), Lyon, France. https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687
LibreCat | DOI | Download (ext.)
 
[3]
2020 | Conference Paper | LibreCat-ID: 29880
Unruh, R., Schafmeister, F., & Böcker, J. (2020). 11kW, 70kHz LLC Converter Design with Adaptive Input Voltage for 98% Efficiency in an MMC. 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL). https://doi.org/10.1109/compel49091.2020.9265771
LibreCat | DOI | Download (ext.)
 
[2]
2020 | Conference Paper | LibreCat-ID: 29940
Unruh, R., Schafmeister, F., Fröhleke, N., & Böcker, J. (2020). 1-MW Full-Bridge MMC for High-Current Low-Voltage (100V-400V) DC-Applications. PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. PCIM Europe digital days 2020, Germany.
LibreCat | Download (ext.)
 
[1]
2019 | Conference Paper | LibreCat-ID: 29942
Unruh, R., Schafmeister, F., Fröhleke, N., & Böcker, J. (2019). MMC-Topology for High-Current and Low-Voltage Applications with Minimal Number of Submodules, Reduced Switching and Capacitor Losses. PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. PCIM Europe 2019, Nuremberg, Germany.
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9 Publications

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[9]
2023 | Conference Paper | LibreCat-ID: 48352
Unruh, R., Böcker, J., & Schafmeister, F. (2023). An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors. 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe). 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe), Aalborg, Denmark. https://doi.org/10.23919/epe23ecceeurope58414.2023.10264313
LibreCat | DOI | Download (ext.)
 
[8]
2022 | Conference Paper | LibreCat-ID: 34176
Unruh, R., Schafmeister, F., & Böcker, J. (2022). 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). 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), Hanover, Germany.
LibreCat | Download (ext.)
 
[7]
2021 | Conference Paper | LibreCat-ID: 29938
Unruh, R., Lange, J., Schafmeister, F., & Böcker, J. (2021). 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). 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), Ghent, Belgium. https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542
LibreCat | DOI | Download (ext.)
 
[6]
2021 | Conference Paper | LibreCat-ID: 29899
Rehlaender, P., Unruh, R., Hankeln, L., Schafmeister, F., & Böcker, J. (2021). Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration. 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe). 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), Ghent, Belgium. https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674
LibreCat | DOI | Download (ext.)
 
[5]
2021 | Conference Paper | LibreCat-ID: 29893
Rehlaender, P., Unruh, R., Schafmeister, F., & Böcker, J. (2021). Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses to Reduce Thermal Imbalances. 2021 IEEE Applied Power Electronics Conference and Exposition (APEC). 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), Phoenix, AZ, USA. https://doi.org/10.1109/apec42165.2021.9487104
LibreCat | DOI | Download (ext.)
 
[4]
2020 | Conference Paper | LibreCat-ID: 29939
Unruh, R., Schafmeister, F., & Böcker, J. (2020). Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design. 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe). 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), Lyon, France. https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687
LibreCat | DOI | Download (ext.)
 
[3]
2020 | Conference Paper | LibreCat-ID: 29880
Unruh, R., Schafmeister, F., & Böcker, J. (2020). 11kW, 70kHz LLC Converter Design with Adaptive Input Voltage for 98% Efficiency in an MMC. 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL). https://doi.org/10.1109/compel49091.2020.9265771
LibreCat | DOI | Download (ext.)
 
[2]
2020 | Conference Paper | LibreCat-ID: 29940
Unruh, R., Schafmeister, F., Fröhleke, N., & Böcker, J. (2020). 1-MW Full-Bridge MMC for High-Current Low-Voltage (100V-400V) DC-Applications. PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. PCIM Europe digital days 2020, Germany.
LibreCat | Download (ext.)
 
[1]
2019 | Conference Paper | LibreCat-ID: 29942
Unruh, R., Schafmeister, F., Fröhleke, N., & Böcker, J. (2019). MMC-Topology for High-Current and Low-Voltage Applications with Minimal Number of Submodules, Reduced Switching and Capacitor Losses. PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. PCIM Europe 2019, Nuremberg, Germany.
LibreCat | Download (ext.)
 
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