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. An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors. In: 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe). IEEE; 2023. doi:10.23919/epe23ecceeurope58414.2023.10264313
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[8]
2022 | Conference Paper | LibreCat-ID: 34176
Unruh R, Schafmeister F, Böcker J. Zero-Sequence Voltage Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale Electrolyzers by 40%. In: 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe). IEEE; 2022.
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[7]
2021 | Conference Paper | LibreCat-ID: 29938
Unruh R, Lange J, Schafmeister F, Böcker J. Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions. In: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe). IEEE; 2021. doi:https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542
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[6]
2021 | Conference Paper | LibreCat-ID: 29899
Rehlaender P, Unruh R, Hankeln L, Schafmeister F, Böcker J. Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration. In: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe). IEEE; 2021. doi:10.23919/EPE21ECCEEurope50061.2021.9570674
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[5]
2021 | Conference Paper | LibreCat-ID: 29893
Rehlaender P, Unruh R, Schafmeister F, Böcker J. Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses to Reduce Thermal Imbalances. In: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE; 2021. doi:10.1109/apec42165.2021.9487104
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[4]
2020 | Conference Paper | LibreCat-ID: 29939
Unruh R, Schafmeister F, Böcker J. Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design. In: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe). IEEE; 2020. doi:10.23919/epe20ecceeurope43536.2020.9215687
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[3]
2020 | Conference Paper | LibreCat-ID: 29880
Unruh R, Schafmeister F, Böcker J. 11kW, 70kHz LLC Converter Design with Adaptive Input Voltage for 98% Efficiency in an MMC. In: 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL). IEEE; 2020. doi:10.1109/compel49091.2020.9265771
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[2]
2020 | Conference Paper | LibreCat-ID: 29940
Unruh R, Schafmeister F, Fröhleke N, Böcker J. 1-MW Full-Bridge MMC for High-Current Low-Voltage (100V-400V) DC-Applications. In: PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. VDE; 2020.
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[1]
2019 | Conference Paper | LibreCat-ID: 29942
Unruh R, Schafmeister F, Fröhleke N, Böcker J. MMC-Topology for High-Current and Low-Voltage Applications with Minimal Number of Submodules, Reduced Switching and Capacitor Losses. In: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. VDE; 2019.
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9 Publications

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[9]
2023 | Conference Paper | LibreCat-ID: 48352
Unruh R, Böcker J, Schafmeister F. An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors. In: 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe). IEEE; 2023. doi:10.23919/epe23ecceeurope58414.2023.10264313
LibreCat | DOI | Download (ext.)
 
[8]
2022 | Conference Paper | LibreCat-ID: 34176
Unruh R, Schafmeister F, Böcker J. Zero-Sequence Voltage Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale Electrolyzers by 40%. In: 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe). IEEE; 2022.
LibreCat | Download (ext.)
 
[7]
2021 | Conference Paper | LibreCat-ID: 29938
Unruh R, Lange J, Schafmeister F, Böcker J. Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions. In: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe). IEEE; 2021. doi: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. Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration. In: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe). IEEE; 2021. doi:10.23919/EPE21ECCEEurope50061.2021.9570674
LibreCat | DOI | Download (ext.)
 
[5]
2021 | Conference Paper | LibreCat-ID: 29893
Rehlaender P, Unruh R, Schafmeister F, Böcker J. Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses to Reduce Thermal Imbalances. In: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE; 2021. doi:10.1109/apec42165.2021.9487104
LibreCat | DOI | Download (ext.)
 
[4]
2020 | Conference Paper | LibreCat-ID: 29939
Unruh R, Schafmeister F, Böcker J. Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design. In: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe). IEEE; 2020. doi:10.23919/epe20ecceeurope43536.2020.9215687
LibreCat | DOI | Download (ext.)
 
[3]
2020 | Conference Paper | LibreCat-ID: 29880
Unruh R, Schafmeister F, Böcker J. 11kW, 70kHz LLC Converter Design with Adaptive Input Voltage for 98% Efficiency in an MMC. In: 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL). IEEE; 2020. doi:10.1109/compel49091.2020.9265771
LibreCat | DOI | Download (ext.)
 
[2]
2020 | Conference Paper | LibreCat-ID: 29940
Unruh R, Schafmeister F, Fröhleke N, Böcker J. 1-MW Full-Bridge MMC for High-Current Low-Voltage (100V-400V) DC-Applications. In: PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. VDE; 2020.
LibreCat | Download (ext.)
 
[1]
2019 | Conference Paper | LibreCat-ID: 29942
Unruh R, Schafmeister F, Fröhleke N, Böcker J. MMC-Topology for High-Current and Low-Voltage Applications with Minimal Number of Submodules, Reduced Switching and Capacitor Losses. In: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. VDE; 2019.
LibreCat | Download (ext.)
 
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Citation Style: AMA

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