@inproceedings{TeigelkoetterStockKowalskietal.2013, author = {Teigelk{\"o}tter, Johannes and Stock, Alexander and Kowalski, Thomas and Burtchen, Dennis and Setzer, Max}, title = {Hocheffizienter Betrieb von permanenterregten Synchronmaschinen am Netz}, series = {ETG-Fachbericht}, volume = {138}, booktitle = {ETG-Fachbericht}, editor = {VDE, and VDI,}, publisher = {VDE-Verlag}, address = {Berlin und Offenbach}, isbn = {978-3-8007-3546-4}, pages = {9 -- 16}, year = {2013}, subject = {Drehstromsynchronmaschine}, language = {de} } @article{BorgeestSchneider2016, author = {Borgeest, Kai and Schneider, Peter Josef}, title = {PID, Fuzzy and Model Predictive Control Applied to a Practical Nonlinear Plant}, series = {International Journal of Robotics Applications and Technologies}, volume = {4}, journal = {International Journal of Robotics Applications and Technologies}, number = {1}, editor = {Zhang, Dan}, pages = {19 -- 43}, year = {2016}, abstract = {For the cooling system of a mobile machine with m control variables and with n≤m correction variables different control strategies have been investigated in order to minimize power to save energy and to reduce fan noise with sufficient cooling. The plant is nonlinear and not identified. Three different kinds of controllers have been investigated in several variations, i.e. fuzzy control, PI(D) and model predictive control (MPC). 14 different criteria have been used for evaluation. In many respects a linear controller with fuzzy prediction proved best, in particular the prediction model can handle nonlinear properties of the plant. A problem of advanced control schemes with unidentified plants is the difficulty to prove stability.}, subject = {Baumaschine}, language = {en} } @inproceedings{TeigelkoetterStockStaudtetal.2015, author = {Teigelk{\"o}tter, Johannes and Stock, Alexander and Staudt, Stefan and Kowalski, Thomas}, title = {Traktionsantriebe mit hochausgenutzten Synchronreluktanzmaschinen im Niederspannungsbereich}, series = {Elektrische Traktions- und Hilfsantriebe f{\"u}r die Elektrifizierung und Hybridisierung von Kraftfahrzeugen}, booktitle = {Elektrische Traktions- und Hilfsantriebe f{\"u}r die Elektrifizierung und Hybridisierung von Kraftfahrzeugen}, number = {139}, editor = {Sch{\"a}fer, Heinz and Klaffke, Werner}, publisher = {Expert Verlag}, address = {Renningen}, isbn = {978-3-8007-3546-4}, pages = {28 -- 40}, year = {2015}, subject = {Reluktanzmotor}, language = {de} } @inproceedings{StaudtTeigelkoetterKowalskietal.2015, author = {Staudt, Stefan and Teigelk{\"o}tter, Johannes and Kowalski, Thomas and Stock, Alexander}, title = {High-performance Synchronous Reluctance Motors in Low-voltage Applications}, series = {17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe), 2015}, booktitle = {17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe), 2015}, editor = {IEEE,}, doi = {10.1109/EPE.2015.7309226}, pages = {1 -- 10}, year = {2015}, subject = {Niederspannung}, language = {en} } @inproceedings{StockTeigelkoetterKowalskietal.2015, author = {Stock, Alexander and Teigelk{\"o}tter, Johannes and Kowalski, Thomas and Staudt, Stefan}, title = {Highly Efficient Constant-Speed Drive System Based on a Doubly Fed Permanent Magnet Synchronous Machine}, series = {17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe), 2015}, booktitle = {17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe), 2015}, editor = {IEEE,}, doi = {10.1109/EPE.2015.7309228}, pages = {1 -- 10}, year = {2015}, subject = {Dauermagneterregter Synchronmotor}, language = {en} } @inproceedings{StockTeigelkoetterStaudtetal.2015, author = {Stock, Alexander and Teigelk{\"o}tter, Johannes and Staudt, Stefan and Kowalski, Thomas}, title = {The Doubly Fed Permanent Magnet Synchronous Machine as a Highly Efficient Drive System for Constant Speed Applications}, series = {IEEE 11th International Conference on Power Electronics and Drive Systems (PEDS)}, booktitle = {IEEE 11th International Conference on Power Electronics and Drive Systems (PEDS)}, editor = {IEEE,}, address = {Sydney, Australia}, doi = {10.1109/PEDS.2015.7203399}, pages = {625 -- 630}, year = {2015}, subject = {Wechselrichter}, language = {en} } @inproceedings{StaudtStockKowalskietal.2015, author = {Staudt, Stefan and Stock, Alexander and Kowalski, Thomas and Teigelk{\"o}tter, Johannes}, title = {Raw Data Based Model and High Dynamic Control Concept for Traction Drives powered by Synchronous Reluctance Machines}, series = {IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), 2015}, booktitle = {IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), 2015}, editor = {IEEE,}, address = {Torino}, doi = {10.1109/WEMDCD.2015.7194530}, pages = {204 -- 209}, year = {2015}, subject = {Reluktanzmotor}, language = {en} } @inproceedings{KowalskiTeigelkoetterStocketal.2014, author = {Kowalski, Thomas and Teigelk{\"o}tter, Johannes and Stock, Alexander and Reis, Thomas}, title = {Energy Efficient Control Strategy for PMSM with Superconductive Stator Winding}, series = {IEEE Transactions on Applied Superconductivity. Applied Superconductivity Conference (ASC) 2014}, booktitle = {IEEE Transactions on Applied Superconductivity. Applied Superconductivity Conference (ASC) 2014}, number = {25, 3}, editor = {IEEE,}, address = {Charlotte, USA}, issn = {1051-8223}, doi = {10.1109/TASC.2014.2372770}, year = {2014}, subject = {Drehstromsynchronmaschine}, language = {en} } @inproceedings{TeigelkoetterStockEberleinetal.2014, author = {Teigelk{\"o}tter, Johannes and Stock, Alexander and Eberlein, Dirk and Lang, Klaus}, title = {Innovative Measurement System for Inverter-Fed Traction Drives. Raw Data Acquisition and Near Real Time Analysis}, series = {EVTeC \& APE Japan 2014}, booktitle = {EVTeC \& APE Japan 2014}, address = {Yokohama, Japan}, pages = {6}, year = {2014}, subject = {Datenerfassung}, language = {en} } @article{EberleinLangTeigelkoetteretal.2013, author = {Eberlein, Dirk and Lang, Klaus and Teigelk{\"o}tter, Johannes and Stock, Alexander}, title = {Innovatives Messkonzept f{\"u}r elektrische Traktionsantriebe}, series = {e\&i elektrotechnik und informationstechnik}, volume = {2013}, journal = {e\&i elektrotechnik und informationstechnik}, number = {130 / 8}, publisher = {Springer}, pages = {24 -- 28}, year = {2013}, subject = {Triebstrang}, language = {de} } @inproceedings{RauerSchreckHaerteretal.2015, author = {Rauer, Miriam and Schreck, Timo and H{\"a}rter, Stefan and Kaloudis, Michael}, title = {The Effect of Thermal Stress on the Reliability of low Ag Solder Joints in High Power LEDs}, series = {20th European Microelectronics and Packaging Conference (EMPC) \& Exhibition, 14.-16.09.2015}, booktitle = {20th European Microelectronics and Packaging Conference (EMPC) \& Exhibition, 14.-16.09.2015}, pages = {1 -- 6}, year = {2015}, subject = {Lumineszenzdiode}, language = {en} } @inproceedings{RauerXuReinhardtetal.2016, author = {Rauer, Miriam and Xu, Ping and Reinhardt, Andreas and Kaloudis, Michael and Franke, J{\"o}rg}, title = {Einfluss von Poren in L{\"o}tverbindungen bei LED-Anwendungen}, series = {Elektronische Baugruppen und Leiterplatten - EBL 2016}, booktitle = {Elektronische Baugruppen und Leiterplatten - EBL 2016}, publisher = {VDE Verlag}, address = {Berlin}, isbn = {978-3-8007-4147-2}, pages = {135 -- 139}, year = {2016}, subject = {L{\"o}tverbindung}, language = {de} } @article{AmrheinSchneiderKaloudis2016, author = {Amrhein, Sebastian and Schneider, Mareike and Kaloudis, Michael}, title = {Ein zweites Leben f{\"u}r den Akku}, series = {ReSource}, volume = {2016}, journal = {ReSource}, number = {1}, pages = {10 -- 16}, year = {2016}, subject = {Lithium-Ionen-Akkumulator}, language = {de} } @article{BachmannAmrheinKaloudis2016, author = {Bachmann, Marco and Amrhein, Sebastian and Kaloudis, Michael}, title = {Intelligente Pedelecs f{\"o}rdern. Ein Ansatz zur nachhaltigen Verbesserung unseres Mobilit{\"a}tsverhaltens}, series = {Internationales Verkehrswesen}, volume = {2016}, journal = {Internationales Verkehrswesen}, number = {1}, pages = {16 -- 19}, year = {2016}, subject = {Pedelec}, language = {de} } @book{BorgeestWegener2016, author = {Borgeest, Kai and Wegener, Georg}, title = {Messtechnik und Pr{\"u}fst{\"a}nde f{\"u}r Verbrennungsmotoren}, publisher = {Springer-Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-10118-3}, doi = {10.1007/978-3-658-10118-3}, pages = {307}, year = {2016}, abstract = {Messtechnik und Pr{\"u}fst{\"a}nde f{\"u}r Verbrennungsmotoren helfen, Kraftstoff einzusparen, Treibhausgase und Schadstoffe zu reduzieren, mit kleineren Motoren mehr Leistung abzugeben sowie Komponenten und Betriebsstoffe zu optimieren. Mit den Motoren und der Abgasgesetzgebung entwickelt sich auch die f{\"u}r die Entwicklung erforderliche mechanische, thermodynamische und Abgasmesstechnik weiter. Dieses Buch vermittelt sowohl Studenten, als auch Planern und Betreibern in Industrie und Wissenschaft das n{\"o}tige umfangreiche Wissen, um Messungen an Motorenpr{\"u}fst{\"a}nden durchf{\"u}hren zu k{\"o}nnen.}, subject = {Verbrennungsmotor}, language = {de} } @book{Mann2006, author = {Mann, Michael}, title = {Der Einfluss ver{\"a}nderlicher Erdbodenparameter auf das Ausbreitungsverhalten elektromagnetischer Felder niederer Frequenzen}, volume = {2006}, publisher = {Lehrstuhl f{\"u}r Hochspannungstechnik und Elektromagnetische Vertr{\"a}glichkeit, Univ.}, address = {Kaiserslautern}, isbn = {978-3-939432-28-9}, pages = {X, 199 S.}, year = {2006}, abstract = {Im Rahmen der Einf{\"u}hrung des weltweiten Digitalrundfunks (Digital Radio Mondiale) im Frequenzbereich der Langwelle, Mittelwelle und Kurzwelle interessiert f{\"u}r Lang- und Mittelwelle der Einfluss ver{\"a}nderlicher Parameter des Erdbodens auf das abgestrahlte Signal. Zur Funknetzplanung werden die im "World Atlas of Ground Conductivities" aufgef{\"u}hrten Bodenleitf{\"a}higkeitskarten der International Telecommunication Union (ITU) herangezogen, die jedoch nur einen groben {\"U}berblick {\"u}ber die Verh{\"a}ltnisse geben. In dieser Arbeit soll untersucht werden, ob die Karten der Bodenleitf{\"a}higkeit in ihrer Ortsaufl{\"o}sung gen{\"u}gend genau dargestellt sind und ob gegebenenfalls durch die Anwendung alternativer Verfahren genauere Karten erstellt werden k{\"o}nnen. Weiterhin sind unterschiedliche Verfahren zur Messung der Bodenleitf{\"a}higkeit bez{\"u}glich ihrer Anwendbarkeit zu beurteilen.}, subject = {Boden}, language = {de} } @book{Borgeest2017, author = {Borgeest, Kai}, title = {Manipulation von Abgaswerten}, publisher = {Springer-Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-17180-3}, year = {2017}, abstract = {Dieses kleine Buch stellt Hintergr{\"u}nde zum Abgasskandal dar, z. B. welche Schadstoffe kritisch sind, wie Motorsteuerger{\"a}te, Abgasr{\"u}ckf{\"u}hrung und Abgasnachbehandlung funktionieren, wie Manipulationen auf dem Pr{\"u}fstand m{\"o}glich sind, mit welchen Fahrzyklen getestet wird und in welchem rechtlichen und politischen Umfeld dies lange Zeit unbemerkt mit unterschiedlichen Konsequenzen in der EU und den USA geschehen konnte. Es werden Maßnahmen vorgestellt, mit denen Fahrzeuge auch real gesetzliche Grenzwerte einhalten k{\"o}nnen und wie Manipulationen zuk{\"u}nftig rechtlich und politisch verhindert werden k{\"o}nnen. Dem Leser werden durch Literaturhinweise zus{\"a}tzliche Details erschlossen.}, subject = {Abgasemmission}, language = {de} } @inproceedings{BorgeestHoeferSeubertetal.2017, author = {Borgeest, Kai and H{\"o}fer, Patrik and Seubert, Michael and Stein, Simon}, title = {Model Based EGR Control}, series = {Proceedings of the Fev Diesel Powertrains 3.0, July 11th \& 12th 2017}, booktitle = {Proceedings of the Fev Diesel Powertrains 3.0, July 11th \& 12th 2017}, publisher = {FEV}, address = {Aachen}, pages = {64 -- 66}, year = {2017}, abstract = {Almost stationary control of the correct EGR rate (Exhaust Gas Recirculation) is state of the art. More aggressive emission tests such as WLTP and RDE require a dynamic control of the EGR rate, otherwise a too low EGR rate results in increased NOx emissions, a too high EGR rate in particulate emissions. The difficulty in any EGR control is the missing plant knowledge; the EGR rate is controlled although the present EGR rate is not exactly known. EGR flow sensors are available, but due to additional costs they have not found a broad acceptance. A different approach for high pressure EGR investigated in this paper is a control using a second lambda sensor between EGR and inlet valves. This approach improves the dynamic response, but it might come with costs similar to an EGR flow sensor. Alternatively a model based approach can be used which shows high potential.}, subject = {Abgasr{\"u}ckf{\"u}hrung}, language = {en} } @book{Borgeest2018, author = {Borgeest, Kai}, title = {EMC and Functional Safety of Automotive Electronics}, publisher = {IET}, address = {Stevenage}, isbn = {978-1-78561-408-8}, pages = {264}, year = {2018}, abstract = {Experience in automotive industry shows that there are in particular two technical reasons why electronic systems in vehicles do not work as expected: software bugs and electromagnetic interference. Malfunctions are more than a mere annoyance, they can damage cars or other goods, injure people or kill people. This book focuses on electromagnetic compatibility (EMC) keeping a close relation to functional safety as required by ISO 26262. It first introduces functional safety and EMC experts to automotive electronics. Since functional safety is still an emerging field, a primer might be useful to automotive engineers and EMC engineers as well. It then introduces to EMC. Signal and power integrity are topics which share the same fundamentals as EMC and are also relevant in some cases. In automotive industry the V-model is still common to describe a development process. For this reason it is necessary to discuss the model and to integrate the safety life cycle and the EMC design flow into the model. After the lecture the reader should be able to recognize and avoid hazards, to avoid expensive EMC problems, to simulate and test for EMC compliance of the car and its components and to fix problems. It helps to learn automotive EMC and functional safety and will stay a reference book after lecture. The book considers all levels from the whole car down to the single electronic control unit (ECU). EMC on integrated circuit level is considered in a few points which are relevant to vehicles. Additionally the charging infrastructure for electric cars is considered.}, subject = {Elektromagnetische Vertr{\"a}glichkeit}, language = {en} } @inproceedings{StaudtBuedelKowalskietal.2017, author = {Staudt, Stefan and B{\"u}del, Johannes and Kowalski, Thomas and Lang, Klaus and Teigelk{\"o}tter, Johannes and Stock, Alexander}, title = {Optimized Modulation Schemes for the Efficiency Enhancement of Low Voltage Traction Drives}, series = {2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe)}, booktitle = {2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe)}, doi = {10.23919/EPE17ECCEEurope.2017.8098998}, year = {2017}, abstract = {This paper will present different modulation schemes for optimizing the efficiency of low-voltage traction drives. The converter of the vehicle automatically has to select the most suitable modulation or control scheme depending on the present operating point in order to maximize the efficiency of the complete drive train. Furthermore, the functional principles and algorithms of the individual modulation schemes will be presented, as well as the transition between those schemes. Finally, the performance of the different schemes will be proved by dynamic and stationary tests through fully automatized measurement analysis.}, subject = {Elektrische Maschine}, language = {en} } @inproceedings{BuedelTeigelkoetterStocketal.2017, author = {B{\"u}del, Johannes and Teigelk{\"o}tter, Johannes and Stock, Alexander and Kowalski, Thomas and Lang, Klaus}, title = {Qualification and verification of high-power battery systems for traction application}, series = {2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe)}, booktitle = {2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe)}, year = {2017}, abstract = {This paper reveals that the standard test procedures for the qualification and verification of traction battery systems are not sufficient in certain cases. In fact, realistic and application-oriented tests on the interaction among the complex battery subsystems are inevitable. To achieve these objectives, a high-performance test bench with the unique selling features of a high voltage/- and current range, extremely low ripple currents, and high dynamics is presented. For the operation of the applied multiphase current-sharing inverter for charging/discharging the device under test (DUT), special control algorithms, especially a current balancing control method, is introduced.}, subject = {Traktionsbatterie}, language = {en} } @inproceedings{StockTeigelkoetterBuedel2018, author = {Stock, Alexander and Teigelk{\"o}tter, Johannes and B{\"u}del, Johannes}, title = {Highly Dynamic Switching Frequency-Based Calculation of Power Quantities, Fundamental Waveforms, and RMS Values of Inverter-fed Electrical Machines}, series = {2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)}, booktitle = {2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)}, doi = {10.23919/IPEC.2018.8507588}, year = {2018}, abstract = {This contribution presents an innovative approximation method for the estimation of power quantities, fundamental waveforms, and RMS values of inverter-fed electrical machines. Typically, all these parameters are calculated as cyclically linked to the fundamental cycle of the voltages and currents of the inverter output or machine input. In order to increase the dynamic of this calculation, a suitable evaluation method based on the inverter switching cycle has been presented in previous publications. The present paper extends this switching frequency-based analysis by introducing additional quantities such as apparent and reactive power. Moreover, the paper describes the utilization of this analysis method for a power control of a dual two-level inverter-fed application.}, subject = {Elektrische Maschine}, language = {en} } @inproceedings{ProbstHitzingerBochtleretal.2021, author = {Probst, Anne-Catherine and Hitzinger, Hans and Bochtler, Ulrich and W{\"o}lfel, Maximilian and Schmitt, Christoph}, title = {High Frequency Power Amplifier for Wideband Wireless Communication Systems}, series = {Proceedings of the 2021 Kleinheubach Conference}, volume = {2021}, booktitle = {Proceedings of the 2021 Kleinheubach Conference}, editor = {U.R.S.I. Landesausschuss in Deutschland e.V. 2021,}, doi = {10.23919/IEEECONF54431.2021.9598443}, pages = {4}, year = {2021}, abstract = {Increasing data transmission rates and bandwidth both belong to the challenges of the development of high-performance wireless communication systems. Multi-channel communication systems commonly use several narrowband power amplifiers each one for a single communication channel. Lossy couplers are needed both to separate the different channels from each other at the amplifiers input and to combine the amplified signals on each channel at the output. This approach depicts a poor efficiency and is limited to a few number of channels since each channel duplication involves 3 dB losses due to couplers. Alternatively, broadband radio frequency power amplifiers ensuring the simultaneous transmission of several carriers on a wide frequency range contribute to increase the cost and resource efficiency of transceivers in wireless communication systems. Gain flatness, a high output power, and low power levels of second and third order harmonics are required on the whole operating frequency range of the power amplifier in multi-carrier communication systems since overtones will degrade the quality of the communication. The present work investigates the performances of a broadband push-pull power amplifier based on LDMOS transistors, the input matching network using a 8:1 transmission line transformer. For the first time investigations on harmonic distortions of the amplified signal when using a transformer with 8:1 impedance transformation ratio are presented. Characterisation of the power amplifiers performances is focused on gain flatness, output power, harmonic distortions and efficiency at 110 W.}, subject = {Hochfrequenzverst{\"a}rker}, language = {en} } @inproceedings{BuedelKuhlmannHerkommeretal.2021, author = {B{\"u}del, Johannes and Kuhlmann, Kai and Herkommer, Christian and Teigelk{\"o}tter, Johannes}, title = {Advanced Control Methods for High Performance Dual Two-Level Inverter for Traction Application}, series = {Electromechanical Drive Systems 2021; ETG Symposium; 9-10 Nov. 2021}, booktitle = {Electromechanical Drive Systems 2021; ETG Symposium; 9-10 Nov. 2021}, isbn = {978-3-8007-5685-8}, year = {2021}, abstract = {The topology of the dual two-level inverter in combination with an electrical machine with open-end winding is an optimal solution for the realization of high requirements from the automotive sector for high-performance traction drives. In this publication, methods for extending the operating range and improving output voltage and current quality are presented for synchronous as well as asynchronous PWM methods for the entire operating range for this system configuration. Emphasis is placed on symmetrical power sharing between the inverters to maximize the power range. Optimal integration of the system is achieved by the topology-related possibility of DC fast charging of the energy storages from a DC grid without an additional charging unit.}, subject = {Wechselrichter}, language = {en} } @article{BuedelTeigelkoetterStocketal.2020, author = {B{\"u}del, Johannes and Teigelk{\"o}tter, Johannes and Stock, Alexander and Grilli, Francesco and Benkel, Tara and H{\"a}nisch, Jens and Lao, Mayraluna and Reis, Thomas and Berberich, Eva and Wolfst{\"a}dter, Simon and Schneider, Christian and Miller, Paul and Palmer, Chloe and Glowacki, Bartek and Climente-Alarcon, Vicente and Smara, Anis and Tomkow, Lukasz and Jeunesse, Loic and Staempflin, Martin and Delautre, Guillaume and Zimmermann, Baptiste and van der Woude, Ruud and Perez, Ana and Samoilenkov, Sergey and Molodyk, Alexander and Pardo, Enric and Kapolka, Milan and Li, Shuo and Dadhich, Anang}, title = {Superconducting motors for aircraft propulsion: the Advanced Superconducting Motor Experimental Demonstrator project}, series = {Journal of Physics: Conference Series}, volume = {1590}, journal = {Journal of Physics: Conference Series}, doi = {10.1088/1742-6596/1590/1/012051}, year = {2020}, abstract = {The European Union-funded Advanced Superconducting Motor Experimental Demonstrator (ASuMED) project started in May 2017 with the purpose of demonstrating the benefits of a new, fully superconducting motor for reaching the targets established by the Flightpath 2050 plan. The project aims at a motor power density of 20 kW kg-1 using a high-temperature superconducting (HTS) stator. The rotor will use HTS stacks operating like permanent magnets. A highly efficient cryostat for the motor combined with an integrated cryogenic cooling system and associated power converter will be used. This article provides a general overview of the prototype that is currently being assembled and that will be tested soon.}, subject = {Hochtemperatursupraleiter}, language = {en} } @inproceedings{StockTeigelkoetterStaudtetal.2018, author = {Stock, Alexander and Teigelk{\"o}tter, Johannes and Staudt, Stefan and B{\"u}del, Johannes}, title = {Highly Dynamic Calculation of Power Quantities and Further Analysis of Inverter-Fed Machines}, series = {2018 20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe)}, booktitle = {2018 20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe)}, isbn = {978-1-5386-4145-3}, year = {2018}, abstract = {In this contribution, a highly dynamic calculation method of power quantities and additional electrical quantities, such as RMS values and fundamental waveforms, is presented. Typically, these quantities are calculated periodically based on the fundamental cycle of the electrical voltages and currents. Hence, they are well defined during steady state conditions for ideal periodical waveforms. During dynamic balancing processes, electrical signals are non-periodic. In a strict sense, the fundamental cycle-based definitions, which are well known from the literature, are not valid for these transient signals. However, this paper presents a novel definition for the calculation of cycle-based quantities based on the switching cycle of the inverter output voltages. This definition delivers instantaneous results during transient balancing processes, whereby it approximates the conventional fundamental cycle-based definitions during the steady state.}, subject = {Elektrische Maschine}, language = {en} } @inproceedings{BuedelTeigelkoetterStock2019, author = {B{\"u}del, Johannes and Teigelk{\"o}tter, Johannes and Stock, Alexander}, title = {Optimized Dual Two-Level Inverter for Safe and Reliable Operation of Machines with Superconductive Stator Windings}, series = {2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)}, booktitle = {2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)}, isbn = {978-1-7281-2361-5}, doi = {10.23919/EPE.2019.8915524}, year = {2019}, abstract = {This paper aims to present an optimized inverter topology, based on the dual two-level inverter, for feeding an open-end winding electrical machine with superconductive stator windings and a superconductive rotor. In order to achieve a high torque density, the stator windings are built of several superconducting tapes being in parallel. One inverter of the dual two-level inverter is equipped with powerful IGBT semiconductors and supplies the machine with energy. The second inverter is a low voltage MOSFET inverter that monitors the superconductor resistance (quench detection) and balances the current on the parallel superconductive tapes for guaranteeing an optimum operation with respect to the superconductive losses.}, subject = {Elektrische Maschine}, language = {en} } @inproceedings{BuedelTeigelkoetterStocketal.2020, author = {B{\"u}del, Johannes and Teigelk{\"o}tter, Johannes and Stock, Alexander and Herkommer, Christian and Kuhlmann, Kai}, title = {High Dynamic Power Balancing for Dual Two-Level Inverters during High-Speed Machine Operation}, series = {2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)}, booktitle = {2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)}, isbn = {978-1-7281-9807-1}, doi = {10.23919/EPE20ECCEEurope43536.2020.9215695}, year = {2020}, abstract = {This paper aims to present optimized square-wave modulation strategies for the dual two-level inverter, fed by two separate and galvanically isolated energy sources, to balance and control the energy distribution of both inverter systems. Especially for high-speed operation, the methods keep the machine in the required state while decreasing the switching operations to a minimum. Method one aims to compensate voltage fluctuations of variable DC-link voltages, while the second method ensures a symmetrical power distribution for the two inverter systems. In addition, both methods offer the possibility of adapting the amplitude of the usually fixed fundamental load voltage during square-wave modulation.}, subject = {Wechselrichter}, language = {en} } @inproceedings{BuedelTeigelkoetterStocketal.2021, author = {B{\"u}del, Johannes and Teigelk{\"o}tter, Johannes and Stock, Alexander and Kuhlmann, Kai and Lang, Klaus and Ott, Patrick}, title = {Testing of High-Power Traction Batteries}, series = {SMSI 2021 - System of Units and Metreological Infrastructure}, booktitle = {SMSI 2021 - System of Units and Metreological Infrastructure}, isbn = {978-3-9819376-4-0}, doi = {10.5162/SMSI2021/C7.}, pages = {294 -- 295}, year = {2021}, abstract = {Electric drives in road vehicles with a battery as energy storage are about to be introduced to the mass market. In order to guarantee the quality and operational safety of battery-powered vehicles, considerable efforts must be made by car manufacturers and their suppliers. Since the properties of the batteries significantly determine the performance of the vehicles, special test benches with precise measuring systems are required for the accurate determination of the battery properties. The safety devices of the traction batteries must also be tested on high-performance test benches. In this paper the necessary test benches and the corresponding measuring systems are presented. Estimations of the measurement uncertainty and possibilities to increase measurement accuracy are presented.}, subject = {Traktionsbatterie}, language = {en} } @article{BuedelTeigelkoetter2019, author = {B{\"u}del, Johannes and Teigelk{\"o}tter, Johannes}, title = {Doppelzweipunktwechselrichter f{\"u}r Elektrofahrzeuge - Systemeigenschaften und Steuerung}, series = {Elektrische Antriebstechnologie f{\"u}r Hybrid- und Elektrofahrzeuge}, volume = {2019}, journal = {Elektrische Antriebstechnologie f{\"u}r Hybrid- und Elektrofahrzeuge}, number = {149}, editor = {Sch{\"a}fer, Heinz}, pages = {114 -- 127}, year = {2019}, abstract = {Im vorliegenden Beitrag wird die Topologie des Doppelzweipunktwechselrichters f{\"u}r die Anwendung in Elektrofahrzeugen vorgestellt. Dazu werden zun{\"a}chst der Schaltungsaufbau und die spezifischen Schaltungseigenschaften n{\"a}her erl{\"a}utert. Anschließend werden relevante Vorteile dieser Topologie f{\"u}r die Anwendung in Elektrofahrzeugen dargestellt. F{\"u}r die Kombination unterschiedlicher Energiequellen mit Hilfe des Doppelzweipunktwechselrichters werden geeignete Steuerungsstrategien pr{\"a}sentiert und anhand von realen Messungen am Systempr{\"u}fstand verifiziert. Mit dem Vorgestellten Verfahren kann die Leistungsaufteilung auf die beiden Energiespeicher und deren Energieaustausch untereinander mit hohem Freiheitsgrad gesteuert werden.}, subject = {Elektrofahrzeug}, language = {de} } @inproceedings{SchwarzerChewSchnepfetal.2018, author = {Schwarzer, Christian and Chew, Ly May and Schnepf, Michael and Stoll, Thomas and Franke, J{\"o}rg and Kaloudis, Michael}, title = {INVESTIGATION OF COPPER SINTER MATERIAL FOR DIE ATTACH}, series = {SMTA International Conference Proceedings}, volume = {2018}, booktitle = {SMTA International Conference Proceedings}, number = {Proceedings SMTAI 2018}, address = {Rosemont}, organization = {SMTA}, year = {2018}, subject = {Leistungshalbleiter}, language = {en} } @inproceedings{HenselSchwarzerScheetzetal.2018, author = {Hensel, Alexander and Schwarzer, Christian and Scheetz, Matthias and Kaloudis, Michael and Franke, J{\"o}rg}, title = {Investigations of Silver Sintered Interconnections 3-Dimensional Ceramics with Plasma Based Additive Copper Metallizations}, series = {2018 IEEE 20th Electronics Packaging Technology Conference (EPTC)}, volume = {2018}, booktitle = {2018 IEEE 20th Electronics Packaging Technology Conference (EPTC)}, address = {Singapore}, doi = {10.1109/EPTC.2018.8654421}, pages = {416 -- 421}, year = {2018}, subject = {Leistungselektronik}, language = {en} } @inproceedings{SchmittSchnepfFrankeetal.2019, author = {Schmitt, Wolfgang and Schnepf, Michael and Franke, J{\"o}rg and Kaloudis, Michael}, title = {Investigation of a Sintering Process for Micro-Scale Copper Material}, series = {2019 SMTA Electronic in Harsh Environments Conference}, volume = {2019}, booktitle = {2019 SMTA Electronic in Harsh Environments Conference}, year = {2019}, subject = {Kupfer}, language = {en} } @inproceedings{StenzelSchwarzerSchnepfetal.2019, author = {Stenzel, David and Schwarzer, Christian and Schnepf, Michael and Schmitt, Wolfgang and Blank, Thomas and Franke, J{\"o}rg and Kaloudis, Michael}, title = {Characterization of Alternative Sinter Materials for Power Electronics}, series = {22nd Microelectronics and Packaging Conference (EMPC) \& Exhibition, 16 Sep 2019 - 19 Sep 2019, Conference Center PISA, Italy}, booktitle = {22nd Microelectronics and Packaging Conference (EMPC) \& Exhibition, 16 Sep 2019 - 19 Sep 2019, Conference Center PISA, Italy}, year = {2019}, subject = {Leistungselektronik}, language = {en} } @article{DoehringPribullaKomziketal.2019, author = {D{\"o}hring, Thorsten and Pribulla, Theodor and Komzik, Richard and Mann, Michael and Sivanic, Peter and Stollenwerk, Manfred}, title = {Slovak-Bavarian collaboration on the development of telescope instrumentation}, series = {Contributions of the Astronomical Observatory Skalnate Pleso}, volume = {2019}, journal = {Contributions of the Astronomical Observatory Skalnate Pleso}, number = {49 / 2}, pages = {154 -- 158}, year = {2019}, abstract = {Within the project SLOBATCO (Slovak-Bavarian Telescope Collaboration) the Astronomical Institute of the Slovak Academy of Sciences and Aschaffenburg University of Applied Sciences collaborate in the development and commissioning of scientific instrumentation for the new {\O}1.3 m astronomical telescope at the Skalnat{\´e} Pleso observatory. The joint project is funded by the Bavarian Academic Center for Central, Eastern and Southeastern Europe (BAYHOST). Planned technical work packages are targeting the filter wheel software for the VIS camera, additional IR filters, and an upgrade of the mirror coating facility by additional sputtering equipment.}, subject = {Spiegelteleskop}, language = {en} } @misc{MannDoehringPribullaetal.2019, author = {Mann, Michael and D{\"o}hring, Thorsten and Pribulla, Theodor and Komzik, Richard and Sivanic, Peter and Stollenwerk, Manfred}, title = {Power quality evaluation for observatories}, editor = {Skopal, Augustin}, organization = {TH Aschaffenburg}, pages = {1}, year = {2019}, abstract = {Within the project SLOBATCO the question did arise, to what extend observatories have to rely on adequate power quality, e.g. the perfect sinusoidal shape of supply voltage and current, in order to ensure safe operation and accurate measurement results. International power quality standards are put in perspective with requirement specifications. Telescope operators indicate partial or total loss of function of measurement instruments. Measurements conducted during SLOBATCO project substantiate the need for power quality measurement campaigns.}, subject = {Sternwarte}, language = {en} } @article{MannPribullaDoehringetal.2019, author = {Mann, Michael and Pribulla, Theodor and D{\"o}hring, Thorsten and Komzik, Richard and Sivanic, Peter}, title = {Power quality—Evaluation of safe operation of observatories}, series = {Astronomische Nachrichten}, volume = {2019}, journal = {Astronomische Nachrichten}, number = {340}, doi = {10.1002/asna.201913672}, pages = {658 -- 665}, year = {2019}, abstract = {The electric power supply of astronomical observatories has to manage a conflict of interest: Observatories are situated at remote locations, they have a high consumption of electric power while measuring electric signals as sensitively as possible. Within the project SLOBATCO, the question did arise, to what extent observatories have to rely on adequate power quality, for example, the perfectly sinusoidal shape of supply voltage and current, to ensure safe operation and accurate measurement results. International power quality standards are put in perspective with requirement specifications for observatories. This contribution describes themotivation, the underlying mechanisms that lead to issues, comments on the challenge in power systems engineering, proposes the instrumentation and installation, and interprets the first results. Experimental results clearly motivate the need for further measurement campaigns, as power-quality-related problems are common. A summary is provided together with an outlook and a motivation for future measurement campaigns.}, subject = {Sternwarte}, language = {en} } @inproceedings{HenselRothMerzetal.2019, author = {Hensel, Alexander and Roth, Frederick and Merz, Corinna and Franke, J{\"o}rg and Kaloudis, Michael}, title = {Investigation of Pressureless Sintered Interconnections on Plasma Based Additive Copper Metallization for 3-Dimentional Ceramic Substrates in High Temperature Applications}, series = {22nd Microelectronics and Packaging Conference (EMPC) \& Exhibition, 16 Sep 2019 - 19 Sep 2019, Conference Center PISA, Italy}, booktitle = {22nd Microelectronics and Packaging Conference (EMPC) \& Exhibition, 16 Sep 2019 - 19 Sep 2019, Conference Center PISA, Italy}, year = {2019}, subject = {Sintern}, language = {en} } @book{Borgeest2020, author = {Borgeest, Kai}, title = {Messtechnik und Pr{\"u}fst{\"a}nde f{\"u}r Verbrennungsmotoren}, volume = {2020}, edition = {2. Auflage}, publisher = {Springer-Vieweg}, address = {Wiesbaden}, isbn = {0000-0003-4289-0083}, doi = {10.1007/978-3-658-29105-1}, year = {2020}, subject = {Verbrennungsmotor}, language = {de} } @article{KeferSauerHessleretal.2020, author = {Kefer, Stefan and Sauer, Theresia and Hessler, Steffen and Kaloudis, Michael and Hellmann, Ralf}, title = {Microstructure-Based Fiber-to-Chip Coupling of Polymer Planar Bragg Gratings for Harsh Environment Applications}, series = {Sensors (Basel)}, volume = {20}, journal = {Sensors (Basel)}, number = {19}, doi = {10.3390/s20195452}, pages = {5452 -- 5452}, year = {2020}, abstract = {This article proposes and demonstrates a robust microstructure-based fiber-to-chip coupling scheme for planar Bragg grating devices. A polymer planar Bragg grating substrate is manufactured and microstructured by means of a micromilling process, while the respective photonic structures are generated by employing a sophisticated single-writing UV-exposure method. A stripped standard single mode fiber is inserted into the microstructure, which is filled with a UV-curable adhesive, and aligned with the integrated waveguide. After curing, final sensor assembly and thermal treatment, the proposed coupling scheme is capable of withstanding pressures up to 10 bar, at room temperature, and pressures up to 7.5 bar at an elevated temperature of 120 °C. Additionally, the coupling scheme is exceedingly robust towards tensile forces, limited only by the tensile strength of the employed single mode fiber. Due to its outstanding robustness, the coupling scheme enables the application of planar Bragg grating devices in harsh environments. This fact is underlined by integrating a microstructure-coupled photonic device into the center of a commercial-grade carbon fiber-reinforced polymer specimen. After its integration, the polymer-based Bragg grating sensor still exhibits a reflection peak with a dynamic range of 24 dB, and can thus be employed for sensing purposes.}, language = {en} } @incollection{Borgeest2019, author = {Borgeest, Kai}, title = {Safe Development Environments for Radiation Tracing Robots}, series = {Handbook of Research on Advanced Mechatronic Systems and Intelligent Robotics}, booktitle = {Handbook of Research on Advanced Mechatronic Systems and Intelligent Robotics}, publisher = {IGI Global}, address = {Hershey, PA}, isbn = {9781799801375}, doi = {doi.org/10.4018/978-1-7998-0137-5.ch006}, pages = {126 -- 138}, year = {2019}, abstract = {Robots can substitute for men in radioactively-contaminated areas. This is a suitable field to deploy robots for measurements, repair, or clearance, but development and test of such robots could be dangerous, because radiation sources need to be handled. To avoid these hazards in development or public demonstrations, safe alternatives to radiation samples have been sought using an already existing robot (EtaBot). One proposed solution is an optical substitution ("light follower"), the other one a fully-digital simulation of the contaminated area and the robot movement inside it using a hardware-in-the-loop simulator (HiL).}, subject = {Mobiler Roboter}, language = {en} } @book{Borgeest2020, author = {Borgeest, Kai}, title = {Elektronik in der Fahrzeugtechnik}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-23663-2}, doi = {10.1007/978-3-658-23664-9}, pages = {552}, year = {2020}, abstract = {Das Buch vermittelt die Grundlagen, um die Besonderheiten der Elektronik und Software im Kfz nicht nur zu kennen, sondern auch zu verstehen. Zus{\"a}tzlich wird an Beispielen die Komplexit{\"a}t realer Systeme im Fahrzeug vorgef{\"u}hrt und gezeigt, welche Anwendungen durch die Elektronik erst m{\"o}glich werden. Das Spannungsfeld zwischen Sicherheit, Zuverl{\"a}ssigkeit und Komplexit{\"a}t pr{\"a}gt in Verbindung mit branchen{\"u}blichen Abl{\"a}ufen das Vorgehen bei der Entwicklung, das ein in diesem Bereich t{\"a}tiger Ingenieur verstehen muss.}, subject = {Kraftfahrzeugelektronik}, language = {de} } @book{Borgeest2024, author = {Borgeest, Kai}, title = {Messtechnik und Pr{\"u}fst{\"a}nde f{\"u}r Verbrennungsmotoren}, volume = {2024}, edition = {3., {\"u}berarbeitete und erweiterte Auflage}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-43283-6}, doi = {10.1007/978-3-658-43284-3}, pages = {638}, year = {2024}, abstract = {Dieses Buch vermittelt sowohl Studenten, als auch Planern und Betreibern in Industrie und Wissenschaft das n{\"o}tige umfangreiche Wissen, um Messungen an Motorenpr{\"u}fst{\"a}nden durchf{\"u}hren zu k{\"o}nnen. Messtechnik und Pr{\"u}fst{\"a}nde f{\"u}r Verbrennungsmotoren helfen, Kraftstoff einzusparen, Treibhausgase und Schadstoffe zu reduzieren, mit kleineren Motoren mehr Leistung abzugeben sowie Komponenten und Betriebsstoffe zu optimieren. Mit den Motoren und der Abgasgesetzgebung entwickelt sich auch die f{\"u}r die Entwicklung erforderliche mechanische, thermodynamische und Abgasmesstechnik weiter.}, subject = {Kraftfahrzeugtechnik}, language = {de} } @inproceedings{BuedelKuhlmannTeigelkoetter2024, author = {B{\"u}del, Johannes and Kuhlmann, Kai and Teigelk{\"o}tter, Johannes}, title = {Improved DC-Charging for Traction Drives with Hybrid Powered Dual Two-Level Inverter}, series = {2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe)}, booktitle = {2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe)}, doi = {10.23919/EPE23ECCEEurope58414.2023.10264409}, year = {2024}, abstract = {This contribution aims to present a new concept for power sharing of traction drives supplied by local DC grids such as partly or full equipped trolley wire nets. Therefore, a dual two-level inverter with two separate energy storages and an open-end winding machine is used. New control algorithms allow the charging of the energy sources whether two batteries, a combination of a battery and a fuel cell or a combination of battery and a flying capacitor is used. Within the scope of battery performance, this application is able to absorb or deliver the required power from a DC grid and still feed the electrical machine to enable a driving movement of the electric vehicle. As the presented concepts enable voltage balancing due to different battery loads and the use of only one dynamic energy storage in the charging operation, the shown application aims to achieve the high utilization of an electric vehicle powered by a (partly equipped) DC-grid.}, subject = {Wechselrichter}, language = {en} } @inproceedings{BuedelTeigelkoetterKuhlmann2023, author = {B{\"u}del, Johannes and Teigelk{\"o}tter, Johannes and Kuhlmann, Kai}, title = {Stoßstromversuche zur Qualifizierung von sicherheitsrelevanten Komponenten im Antriebsstrang eines Elektrofahrzeuges}, series = {Testen und Validieren elektrischer Antriebsstr{\"a}nge 2023}, booktitle = {Testen und Validieren elektrischer Antriebsstr{\"a}nge 2023}, doi = {doi.org/10.51202/9783181024126}, year = {2023}, abstract = {Progress in the development of traction batteries requires high-performance test benches to qualify the safety-relevant components in the battery management system (BMS) for use in electric vehicles. Since all possible fault cases under all permissible operating conditions must be covered during qualification, only synthetic test circuits, in which a test requires only a short setup time, are used for this task. In this paper, an n-stage surge current generator for the generation of high short-circuit currents is presented. Using the example of a four-stage resonant circuit surge current converter, the advantages of this test circuit are explained and demonstrated by measurements. Furthermore, instructions for measuring the surge currents are given.}, subject = {Elektrofahrzeug}, language = {en} } @inproceedings{BuedelHerkommerKuhlmannetal.2021, author = {B{\"u}del, Johannes and Herkommer, Christian and Kuhlmann, Kai and Teigelk{\"o}tter, Johannes}, title = {Advanced DC-charging Methods for Traction Drives with Dual Two-Level Inverter During Machine Operation}, series = {2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)}, booktitle = {2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)}, doi = {10.23919/EPE21ECCEEurope50061.2021.9570611}, year = {2021}, abstract = {This paper aims to present a concept and especially developed control methods for an open-end winding traction drive, powered by a dual two-level inverter, where the two separate energy sources can be charged via a DC grid during operation and while being standstill. For achieving a high quality DC-current, the parasitic Back-EMF harmonics of the electrical machine will be compensated. The application aims to achieve high utilisation of the electric vehicle in combination with a partly equipped trolley wire net.}, subject = {Wechselrichter}, language = {en} } @article{KoehlerWoelfelCibaetal.2018, author = {K{\"o}hler, Tim and W{\"o}lfel, Maximilian and Ciba, Manuel and Bochtler, Ulrich and Thielemann, Christiane}, title = {Terrestrial Trunked Radio (TETRA) exposure of neuronal in vitro networks}, series = {Environmental Research}, volume = {2018}, journal = {Environmental Research}, number = {162}, doi = {10.1016/j.envres.2017.12.007}, pages = {1 -- 7}, year = {2018}, abstract = {Terrestrial Trunked Radio (TETRA) is a worldwide common mobile communication standard, used by authorities and organizations with security tasks. Previous studies reported on health effects of TETRA, with focus on the specific pulse frequency of 17.64 Hz, which affects calcium efflux in neuronal cells. Likewise among others, it was reported that TETRA affects heart rate variability, neurophysiology and leads to headaches. In contrast, other studies conclude that TETRA does not affect calcium efflux of cells and has no effect on people's health. In the present study we examine whether TETRA short- and long-term exposure could affect the electrophysiology of neuronal in vitro networks. Experiments were performed with a carrier frequency of 395 MHz, a pulse frequency of 17.64 Hz and a differential quaternary phase-shift keying (π/4 DQPSK) modulation. Specific absorption rates (SAR) of 1.17 W/kg and 2.21 W/kg were applied. In conclusion, the present results do not indicate any effect of TETRA exposure on electrophysiology of neuronal in vitro networks, neither for short-term nor long-term exposure. This applies to the examined parameters spike rate, burst rate, burst duration and network synchrony.}, subject = {Neuronales Netz}, language = {en} } @article{OsterDausErbesetal.2016, author = {Oster, Stefan and Daus, Andreas and Erbes, Christian and Goldhammer, Michael and Bochtler, Ulrich and Thielemann, Christiane}, title = {Long-term electromagnetic exposure of developing neuronal networks: A flexible experimental setup}, series = {Bioelectromagnetics}, volume = {2016}, journal = {Bioelectromagnetics}, number = {37}, doi = {10.1002/bem.21974}, pages = {264 -- 278}, year = {2016}, abstract = {Neuronal networks in vitro are considered one of the most promising targets of research to assess potential electromagnetic field induced effects on neuronal functionality. A few exposure studies revealed there is currently no evidence of any adverse health effects caused by weak electromagnetic fields. Nevertheless, some published results are inconsistent. Particularly, doubts have been raised regarding possible athermal biological effects in the young brain during neuronal development. Therefore, we developed and characterized a flexible experimental setup based on a transverse electromagnetic waveguide, allowing controlled, reproducible exposure of developing neuronal networks in vitro. Measurement of S-parameters confirmed very good performance of the Stripline in the band of 800-1000 MHz. Simulations suggested a flexible positioning of cell culture dishes throughout a large exposure area, as specific absorption rate values were quite independent of their position (361.7 ± 11.4 mW/kg) at 1 W, 900 MHz. During exposure, thermal drift inside cellular medium did not exceed 0.1 K. Embryonic rat cortical neurons were cultivated on microelectrode array chips to non-invasively assess electrophysiological properties of electrogenic networks. Measurements were taken for several weeks, which attest to the experimental setup being a reliable system for long-term studies on developing neuronal tissue.}, subject = {Neuronales Netz}, language = {en} } @inproceedings{DausOsterErbesetal.2013, author = {Daus, Andreas and Oster, Stefan and Erbes, Christian and Goldhammer, Michael and Bochtler, Ulrich and Thielemann, Christiane}, title = {Electromagnetic exposure of neuronal networks on microelectrode arrays}, series = {U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Kleinheubacher Tagung, Miltenberg, Abstracts}, booktitle = {U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Kleinheubacher Tagung, Miltenberg, Abstracts}, pages = {29 -- 30}, year = {2013}, subject = {Neuronales Netz}, language = {en} } @inproceedings{OsterDausGoldhammeretal.2013, author = {Oster, Stefan and Daus, Andreas and Goldhammer, Michael and Bochtler, Ulrich and Thielemann, Christiane}, title = {A Flexible RF Exposure Setup for Long-term Electrophysiological Investigations on Biological Samples in Vitro}, series = {Progress In Electromagnetics Research Symposium Abstracts, Stockholm, Schweden}, booktitle = {Progress In Electromagnetics Research Symposium Abstracts, Stockholm, Schweden}, year = {2013}, subject = {Neuronales Netz}, language = {en} }