Roland Unruh
Leistungselektronik und Elektrische Antriebstechnik (LEA)
unruh@lea.uni-paderborn.deID
11 Publications
2024 | Conference Paper | LibreCat-ID: 54356
Unruh, Roland, et al. “Experimentally Verified 22 KW, 40 KHz LLC Resonant Converter Design with New Control for a 1 MW Cascaded H-Bridge Converter.” ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe, IEEE, doi:https://doi.org/10.1109/ECCEEurope62508.2024.10751954.
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2024 | Conference Paper | LibreCat-ID: 58648
Unruh, Roland, et al. “Experimentally Verified 22 KW, 40 KHz LLC Resonant Converter Design with New Control for a 1 MW Cascaded H-Bridge Converter.” Proceedings of the Energy Conversion Congress & Expo (ECCE Europe), IEEE, 2024, doi:10.1109/ECCEEurope62508.2024.10751954.
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2023 | Conference Paper | LibreCat-ID: 48352
Unruh, Roland, et al. “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), IEEE, 2023, doi:10.23919/epe23ecceeurope58414.2023.10264313.
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2022 | Conference Paper | LibreCat-ID: 34176
Unruh, Roland, et al. “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), IEEE, 2022.
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2021 | Conference Paper | LibreCat-ID: 29938
Unruh, Roland, et al. “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), IEEE, 2021, doi:https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542.
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2021 | Conference Paper | LibreCat-ID: 29893
Rehlaender, Philipp, et al. “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), IEEE, 2021, doi:10.1109/apec42165.2021.9487104.
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2021 | Conference Paper | LibreCat-ID: 29899
Rehlaender, Philipp, et al. “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), IEEE, 2021, doi:10.23919/EPE21ECCEEurope50061.2021.9570674.
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2020 | Conference Paper | LibreCat-ID: 29939
Unruh, Roland, et al. “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), IEEE, 2020, doi:10.23919/epe20ecceeurope43536.2020.9215687.
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2020 | Conference Paper | LibreCat-ID: 29940
Unruh, Roland, et al. “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, VDE, 2020.
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2020 | Conference Paper | LibreCat-ID: 29880
Unruh, Roland, et al. “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), IEEE, 2020, doi:10.1109/compel49091.2020.9265771.
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2019 | Conference Paper | LibreCat-ID: 29942
Unruh, Roland, et al. “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, VDE, 2019.
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11 Publications
2024 | Conference Paper | LibreCat-ID: 54356
Unruh, Roland, et al. “Experimentally Verified 22 KW, 40 KHz LLC Resonant Converter Design with New Control for a 1 MW Cascaded H-Bridge Converter.” ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe, IEEE, doi:https://doi.org/10.1109/ECCEEurope62508.2024.10751954.
LibreCat
| DOI
| Download (ext.)
2024 | Conference Paper | LibreCat-ID: 58648
Unruh, Roland, et al. “Experimentally Verified 22 KW, 40 KHz LLC Resonant Converter Design with New Control for a 1 MW Cascaded H-Bridge Converter.” Proceedings of the Energy Conversion Congress & Expo (ECCE Europe), IEEE, 2024, doi:10.1109/ECCEEurope62508.2024.10751954.
LibreCat
| Files available
| DOI
2023 | Conference Paper | LibreCat-ID: 48352
Unruh, Roland, et al. “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), IEEE, 2023, doi:10.23919/epe23ecceeurope58414.2023.10264313.
LibreCat
| DOI
| Download (ext.)
2022 | Conference Paper | LibreCat-ID: 34176
Unruh, Roland, et al. “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), IEEE, 2022.
LibreCat
| Download (ext.)
2021 | Conference Paper | LibreCat-ID: 29938
Unruh, Roland, et al. “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), IEEE, 2021, doi:https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542.
LibreCat
| DOI
| Download (ext.)
2021 | Conference Paper | LibreCat-ID: 29893
Rehlaender, Philipp, et al. “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), IEEE, 2021, doi:10.1109/apec42165.2021.9487104.
LibreCat
| DOI
| Download (ext.)
2021 | Conference Paper | LibreCat-ID: 29899
Rehlaender, Philipp, et al. “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), IEEE, 2021, doi:10.23919/EPE21ECCEEurope50061.2021.9570674.
LibreCat
| DOI
| Download (ext.)
2020 | Conference Paper | LibreCat-ID: 29939
Unruh, Roland, et al. “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), IEEE, 2020, doi:10.23919/epe20ecceeurope43536.2020.9215687.
LibreCat
| DOI
| Download (ext.)
2020 | Conference Paper | LibreCat-ID: 29940
Unruh, Roland, et al. “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, VDE, 2020.
LibreCat
| Download (ext.)
2020 | Conference Paper | LibreCat-ID: 29880
Unruh, Roland, et al. “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), IEEE, 2020, doi:10.1109/compel49091.2020.9265771.
LibreCat
| DOI
| Download (ext.)
2019 | Conference Paper | LibreCat-ID: 29942
Unruh, Roland, et al. “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, VDE, 2019.
LibreCat
| Download (ext.)