@article{RaabWeickertKasten, author = {Raab, Sebastian and Weickert, Sebastian and Kasten, Henning}, title = {Methodology for Designing Broadband DC Link Filters for Voltage Source Converters}, series = {electronics}, journal = {electronics}, publisher = {MDPI}, doi = {10.3390/electronics14142743}, abstract = {This paper presents a new methodology for the design process of DC ripple filters for voltage source converters. It focuses on fast-switching, wide-bandgap-material-based converters. Therefore, a wide frequency range of up to 100 MHz is taken into consideration during the whole process. Different tools like analytic calculations, time-domain modelling, and the finite element method are used for different tasks in order to generate a realistic model in terms of filter effect and reliability. The models are validated by small-signal measurements using a vector network analyser as well as realistic high-power tests. The contribution of this paper is to provide a tool for DC link filter design to estimate the filter efficiency and the current stress on the filter elements with a special focus on WBG hardware.}, language = {en} } @inproceedings{RaabHofmannKastenetal., author = {Raab, Sebastian and Hofmann, Martin and Kasten, Henning and Ackva, Ansgar}, title = {High Bandwidth PWM-based Amplifier for Non-Linear Hybrid Filter in Electric Vehicle DC Grids}, series = {25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe)}, booktitle = {25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe)}, publisher = {IEEE}, isbn = {978-9-0758-1541-2}, doi = {10.23919/EPE23ECCEEurope58414.2023.10264683}, pages = {1 -- 9}, abstract = {The paper presents design and modulation strategy for a high bandwidth PWM-based amplifier. It consists of multiple H-bridges connected in parallel and switched sequentially. As the effective switching frequency is a multiple of the switching frequency of each single switch, the bandwidth is scaled by the number of H-bridges in parallel. The prototype presented supports a maximum number of eight H-bridges in parallel.}, language = {en} } @inproceedings{RaabAckva, author = {Raab, Sebastian and Ackva, Ansgar}, title = {Non-linear hybrid filter for the DC-side ripple current of voltage source converters}, series = {2022 International Symposium on Electromagnetic Compatibility - EMC Europe}, booktitle = {2022 International Symposium on Electromagnetic Compatibility - EMC Europe}, publisher = {IEEE}, isbn = {978-1-6654-0788-5}, issn = {2325-0364}, doi = {10.1109/emceurope51680.2022.9901278}, abstract = {The paper deals with the design of DC-side filters for three-phase voltage source converters of drives connected to an industrial or automotive DC-grid. It points out the problem of designing a filter if the DC-grid impedance and structure are unknown. Therefore, it presents a new non-linear hybrid filter whose filter effect is less dependent on the impedance of the downstream DC-grid and with better immunity against external interferences. The analytical and simulation based design process is explained with help of a concrete example. Results are validated by measurements on an experimental set-up.}, language = {en} } @inproceedings{RaabPonomarovHofmannetal., author = {Raab, Sebastian and Ponomarov, Pavlo and Hofmann, Martin and Sch{\"a}fer, Markus and Ackva, Ansgar}, title = {Performance evaluations of load balancing in industrial power grids using vehicle to grid technology}, series = {Power Electronics and Applications (EPE'17 ECCE Europe), 2017 19th European Conference on}, booktitle = {Power Electronics and Applications (EPE'17 ECCE Europe), 2017 19th European Conference on}, isbn = {978-90-75815-27-6}, doi = {10.23919/EPE17ECCEEurope.2017.8098975}, pages = {1 -- 8}, language = {en} } @inproceedings{HofmannRaabSchaeferetal., author = {Hofmann, Martin and Raab, Sebastian and Sch{\"a}fer, Markus and Ponomarov, Pavlo and Ackva, Ansgar}, title = {Measurements on vehicle to grid application in industrial power grid for peak load reduction: Robust bidirectional charger for series production electric and plug-in hybrid vehicles}, series = {Power Electronics for Distributed Generation Systems (PEDG), 2015 IEEE 6th International Symposium on}, booktitle = {Power Electronics for Distributed Generation Systems (PEDG), 2015 IEEE 6th International Symposium on}, isbn = {978-1-4799-8586-9}, doi = {10.1109/PEDG.2015.7223022}, pages = {1 -- 5}, language = {en} } @inproceedings{SchaeferHofmannRaabetal., author = {Sch{\"a}fer, Markus and Hofmann, Martin and Raab, Sebastian and Ackva, Ansgar}, title = {Multilevel direct current control for grid-connected inverters}, series = {Power Electronics and Applications (EPE'15 ECCE-Europe), 2015 17th European Conference on}, booktitle = {Power Electronics and Applications (EPE'15 ECCE-Europe), 2015 17th European Conference on}, isbn = {978-9-0758-1522-1}, doi = {10.1109/EPE.2015.7309127}, pages = {1 -- 7}, language = {en} } @inproceedings{SchaeferHofmannRaabetal., author = {Sch{\"a}fer, Markus and Hofmann, Martin and Raab, Sebastian and Ackva, Ansgar}, title = {FPGA Based Control of an Three Level Neutral Point Clamped Inverter}, series = {PCIM Europe 2017; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management; Proceedings of}, booktitle = {PCIM Europe 2017; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management; Proceedings of}, editor = {PCIM GmbH, Mesago}, isbn = {978-3-8007-4424-4}, pages = {1558 -- 1563}, language = {en} } @inproceedings{GoebelRaabLandaueretal., author = {G{\"o}bel, Lukas and Raab, Sebastian and Landauer, Markus and Ackva, Ansgar}, title = {Resonant Switching and Power Control of DC-DC-Converters with a Variable Transmission Path}, series = {20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe)}, booktitle = {20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe)}, editor = {IEEE,}, isbn = {9781538641453}, pages = {1 -- 9}, language = {en} } @inproceedings{GoebelRaabAckva, author = {G{\"o}bel, Lukas and Raab, Sebastian and Ackva, Ansgar}, title = {A FPGA-Based Algorithm for Soft Switched DC-DC Converters with a Variable Transmission Path}, series = {PCIM Europe}, booktitle = {PCIM Europe}, isbn = {9783800746460}, pages = {1092 -- 1097}, language = {en} } @inproceedings{RaabAckva, author = {Raab, Sebastian and Ackva, Ansgar}, title = {Active Filtering of DC Ripple Currents Between Converter and Low-Resistive DC Load}, series = {PCIM Europe}, booktitle = {PCIM Europe}, isbn = {9783800746460}, pages = {1854 -- 1859}, language = {en} } @inproceedings{RaabAckva, author = {Raab, Sebastian and Ackva, Ansgar}, title = {An Approach for Active Damping of DC Ripple Currents in Low-Resistive DC Systems}, series = {20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe)}, booktitle = {20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe)}, editor = {IEEE,}, isbn = {9781538641453}, pages = {1 -- 9}, language = {en} } @article{RaabKraemerAckva, author = {Raab, Sebastian and Kr{\"a}mer, Andreas and Ackva, Ansgar}, title = {Determination of RMS Current Load on the DC-Link Capacitor of Voltage Source Converters Using Direct Current Control}, series = {IEEE transactions on power electronics}, volume = {36}, journal = {IEEE transactions on power electronics}, number = {1}, issn = {0885-8993}, doi = {10.1109/TPEL.2020.3000243}, pages = {968 -- 977}, language = {en} } @incollection{Raab, author = {Raab, Sebastian}, title = {Modulares Simulationswerkzeug zur Analyse dynamischer Vorg{\"a}nge in Hochvolt Bordnetzen}, series = {Elektrische Antriebstechnologie f{\"u}r Hybrid- und Elektrofahrzeuge}, booktitle = {Elektrische Antriebstechnologie f{\"u}r Hybrid- und Elektrofahrzeuge}, number = {v. 149}, editor = {Sch{\"a}fer, Heinz}, isbn = {9783816984832}, language = {en} } @inproceedings{RaabArndt, author = {Raab, Sebastian and Arndt, Bernhard}, title = {Bidirectional Charging of Electric Vehicles}, series = {35th international Conference Science in Practice (SIP)}, booktitle = {35th international Conference Science in Practice (SIP)}, editor = {of P{\´e}cs, University}, isbn = {978-963-429-131-2}, pages = {16 -- 18}, language = {en} }