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Institut für Leistungselektronik und Elektrische Antriebe
Institut
Team
Eckstein, M.Sc., Mattea

Mattea Eckstein, M.Sc.

Frau

Akademische Mitarbeiterin
Institut für Leistungselektronik und Elektrische Antriebe

Kontakt

+49 711 685 67370
+49 711 685 67378
E-Mail
Visitenkarte (VCF)

Pfaffenwaldring 47
70569 Stuttgart
Deutschland
Raum: 1.250, ETI 1

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Publikationen

2025
1. Hirning, D., Haarer, J., Eckstein, M., Haspel, A., Kirschner, M., Roth-Stielow, J.: PFC and Push-Pull Converter Configuration for a DC-Arc-Plasma Torch. In: 2025 Energy Conversion Congress & Expo Europe (ECCE Europe). pp. 1–6 (2025). https://doi.org/10.1109/ECCE-Europe62795.2025.11239012.
  - BibTeX
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  BibTeX
  @inproceedings{11239012, abstract = {This paper presents a two-stage power electronics system to control a DC-arc-plasma torch. The first stage is realized by a PFC module consisting of a two-level inverter topology. Due to the requirement of the plasma torch's anode to be connected to potential earth, a galvanic isolation is mandatory. Hence, the second stage is made up by two interleaved push-pull converters, connected in parallel for higher output currents. This paper discusses the challenges of the control of DC-arc plasma due to its negative differential resistance, causing the closed-loop control to oscillate with the arc plasma.}, author = {Hirning, David and Haarer, Jörg and Eckstein, Mattea and Haspel, André and Kirschner, Marcel and Roth-Stielow, Jörg}, booktitle = {2025 Energy Conversion Congress & Expo Europe (ECCE Europe)}, doi = {10.1109/ECCE-Europe62795.2025.11239012}, month = {09}, pages = {1-6}, title = {PFC and Push-Pull Converter Configuration for a DC-Arc-Plasma Torch}, url = {https://ieeexplore.ieee.org/document/11239012}, year = 2025 }
  Link
  https://ieeexplore.ieee.org/document/11239012
2. Haspel, A., Ziegler, C., Eckstein, M., Hirning, D., Roth-Stielow, J.: Multilevel Inverter with Variable Voltage Levels for PHIL Machine Emulation Considering Harmonics. In: 2025 Energy Conversion Congress & Expo Europe (ECCE Europe). pp. 1–6 (2025). https://doi.org/10.1109\ECCE-Europe62795.2025.11238691.
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  BibTeX
  @inproceedings{11238691, abstract = {This paper presents a multilevel inverter with variable voltage levels that is designed as a demonstrator for a power-hardware-in-the-loop machine emulator. The topology enables the stepwise switching between multiple variably adjustable voltage levels. This unique output characteristic makes it possible to provide the theoretically ideal countervoltage shape for a machine emulator, which results from the combination of the steady properties of the real machine and the switched-mode output voltage of the device-under-test inverter. The paper proves the ability of the topology to set the unique countervoltage shape by measurement results and discusses selected aspects in the hardand software design of the demonstrator.}, author = {Haspel, André and Ziegler, Christian and Eckstein, Mattea and Hirning, David and Roth-Stielow, Jörg}, booktitle = {2025 Energy Conversion Congress & Expo Europe (ECCE Europe)}, doi = {10.1109\ECCE-Europe62795.2025.11238691}, month = {09}, pages = {1-6}, title = {Multilevel Inverter with Variable Voltage Levels for PHIL Machine Emulation Considering Harmonics}, url = {https://ieeexplore.ieee.org/document/11238691}, year = 2025 }
  Link
  https://ieeexplore.ieee.org/document/11238691
3. Eckstein, M., Haspel, A., Hirning, D., Haarer, J., Roth-Stielow, J.: Angle-Triggered Repetitive Controller with Time-Triggered Conventional Controller for a Variable Speed Drive. In: 2025 Energy Conversion Congress & Expo Europe (ECCE Europe). pp. 1–6 (2025). https://doi.org/10.1109/ECCE-Europe62795.2025.11238848.
  - BibTeX
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  BibTeX
  @inproceedings{11238848, abstract = {Torque oscillations in electric machines lead to a disturbed mechanical angular frequency and can stimulate mechanical resonances in a drive train. These oscillations are mostly caused by periodic, sinusoidal or non-sinusoidal disturbances and occur with integer multiples of the machine's fundamental frequency. Time-triggered repetitive controllers (RC) are powerful in rejecting fixed-frequency periodic disturbances. However, the inherent performance limitation under varying disturbance frequencies makes time-triggered RCs not suitable for variable speed drives. The adoption to a fully angle-triggered controller with variable sample times can result in instability and is incompatible with the prevalent fixed-frequency pulse-width modulation (PWM). This paper presents a novel speed controller structure that has been tailored to the reduction of angular-periodic disturbances in PWM driven variable speed drives. An angle-triggered RC, with the primary objective to eliminate the angular-periodic disturbances, is combined with a time-triggered conventional controller (CC) that ensures the basic following of the speed reference.}, author = {Eckstein, Mattea and Haspel, André and Hirning, David and Haarer, Jörg and Roth-Stielow, Jörg}, booktitle = {2025 Energy Conversion Congress & Expo Europe (ECCE Europe)}, doi = {10.1109/ECCE-Europe62795.2025.11238848}, month = {09}, pages = {1-6}, title = {Angle-Triggered Repetitive Controller with Time-Triggered Conventional Controller for a Variable Speed Drive}, url = {https://ieeexplore.ieee.org/document/11238848}, year = 2025 }
  Link
  https://ieeexplore.ieee.org/document/11238848
2024
1. Eckstein, M., Käppeler, H., Haspel, A., Festerling, T., Roth-Stielow, J.: Modelling Method for Efficient Virtual Control Prototyping and Straightforward Migration to a Rapid Control Prototyping System. In: 2024 IEEE Design Methodologies Conference (DMC). pp. 1–7 (2024). https://doi.org/10.1109/DMC62632.2024.10812113.
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  @inproceedings{10812113, abstract = {Closed-Loop Controller (CLC) development by virtual control prototyping uses a variety of methods. One approach is to develop the CLC in a purely virtual System Simulation (SysSim) followed by the validation via Rapid Control Prototyping (RCP). This paper presents a modelling method that ensures an efficient modelling of the controlled system and a straightforward migration of the CLC from the SysSim to RCP. The proposed model architecture is the basis for the seamless integration of the CLC in different environments. Based on this, a method for an efficient modelling of the controlled system is described and demonstrated by the example of a motor test bench. The dominant physical effects that stimulate mechanical resonances are identified and analysed, namely the deadtime of the B6-inverter and the cogging torque of the permanent magnet synchronous machines (PMSM). Consequently, a detailed description is provided of the modelling method of the B6-inverter, the PMSM and the rotational power transmission. A comparison of the system behaviour in SysSim and RCP demonstrates the effectiveness of the presented method for virtual prototyping.}, author = {Eckstein, Mattea and Käppeler, Helena and Haspel, André and Festerling, Tobias and Roth-Stielow, Jörg}, booktitle = {2024 IEEE Design Methodologies Conference (DMC)}, doi = {10.1109/DMC62632.2024.10812113}, month = {11}, pages = {1-7}, title = {Modelling Method for Efficient Virtual Control Prototyping and Straightforward Migration to a Rapid Control Prototyping System}, url = {https://ieeexplore.ieee.org/document/10812113}, year = 2024 }
  Link
  https://ieeexplore.ieee.org/document/10812113
2023
1. Ziegler, P., Linzmaier, J., Haarer, J., Marx, P., Eckstein, M., Roth-Stielow, J.: Wide Bandwidth Current Sensors and the Influence on the Switching Loss Characterization. In: 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia). pp. 1181–1188 (2023).
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  @inproceedings{10213817, abstract = {Due to their outstanding properties, wide bandgap semiconductor devices enable better performance and efficiency in power electronic circuits compared to silicon devices. However, characterizing the switching loss of such devices is even more challenging. The limits of measurement equipment, especially for the current measurement, are reached due to the fast rise and fall times. Ideal characterization requires a non-invasive, infinite bandwidth current sensor. This paper presents a galvanically isolated current sensor that combines magnetic field sensors and a printed circuit board integrated Rogowski coil. The insertion inductance of the hybrid current sensor is compared to a commercial coaxial shunt and a low inductance SMD shunt approach. The influence of the different current measurement devices on the switching loss characterization is investigated.}, author = {Ziegler, Philipp and Linzmaier, Jan and Haarer, Jörg and Marx, Philipp and Eckstein, Mattea and Roth-Stielow, Jörg}, booktitle = {2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)}, issn = {2150-6086}, month = {05}, pages = {1181-1188}, title = {Wide Bandwidth Current Sensors and the Influence on the Switching Loss Characterization}, url = {https://ieeexplore.ieee.org/document/10213817}, year = 2023 }
  Link
  https://ieeexplore.ieee.org/document/10213817
2. Ziegler, P., Haarer, J., Marx, P., Eckstein, M., Haspel, A., Roth-Stielow, J.: Evaluation of a Low-Cost Wide Bandwidth Current Shunt for Characterization of Wide Bandgap Semiconductor Devices. In: 2023 25th European Conference on Power Electronics and Applications (EPE′23 ECCE Europe). pp. 1–9 (2023).
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  @inproceedings{10264595, abstract = {Characterizing the switching losses of wide bandgap semiconductor devices requires wide bandwidth measurement equipment with the smallest possible insertion inductance added to the commutation path by the current sensor. A common current measurement approach is using low-cost off-the-shelf SMD resistors and measure the voltage drop. This SMD shunt approach has a limited bandwidth due to parasitic inductances. In this work, an evaluation of such a low-cost current shunt is performed. The influences and constraints that limit the bandwidth are investigated. The design of a compensation network and the resulting bandwidth improvement are examined. Based on the theoretical discussion, a compact current shunt is designed, that allows a simple integration into the commutation path while adding a low insertion inductance. The measurement results show, that the common measurement approach can reach a bandwidth of several hundred MHz if the design constraints are met and can be further extended by a compensation network.}, author = {Ziegler, Philipp and Haarer, Jörg and Marx, Philipp and Eckstein, Mattea and Haspel, André and Roth-Stielow, Jörg}, booktitle = {2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe)}, month = {09}, pages = {1-9}, title = {Evaluation of a Low-Cost Wide Bandwidth Current Shunt for Characterization of Wide Bandgap Semiconductor Devices}, url = {https://ieeexplore.ieee.org/document/10264595}, year = 2023 }
  Link
  https://ieeexplore.ieee.org/document/10264595
3. Haspel, A., Ketchedjian, V., Marx, P., Eckstein, M., Roth-Stielow, J.: Composition of the Countervoltage for Power-Hardware-in-the-Loop Emulators for Three-Phase Machines. In: 2023 25th European Conference on Power Electronics and Applications (EPE′23 ECCE Europe). pp. 1–10 (2023).
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  @inproceedings{10264532, abstract = {To emulate the reaction of an electrical machine interacting with a device-under-test inverter, a power-hardware-in-the-loop emulator has to provide a suitable countervoltage per phase. For the correct emulation of the dynamic electrical behavior of the machine, especially the current ripple, the countervoltage has to include a steady oscillating component and a stepwise changing component. This paper introduces a novel approach to determine the analytically ideal shape of the countervoltage for the emulation of three-phase machines and provides a simulative validation. As example, a synchronous machine operated with a two-level voltage source inverter is regarded. It is shown that the relation between the machine’s direct and quadrature inductances as well as the coupling between the device-under-test inverter and the emulator have a significant influence on the shape of the countervoltage.}, author = {Haspel, André and Ketchedjian, Vasken and Marx, Philipp and Eckstein, Mattea and Roth-Stielow, Jörg}, booktitle = {2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe)}, month = {09}, pages = {1-10}, title = {Composition of the Countervoltage for Power-Hardware-in-the-Loop Emulators for Three-Phase Machines}, url = {https://ieeexplore.ieee.org/document/10264532}, year = 2023 }
  Link
  https://ieeexplore.ieee.org/document/10264532
2022
1. Haarer, J., Eckstein, M., Ziegler, P., Marx, P., Hirning, D., Roth-Stielow, J.: A Calorimetric and Electrical Method for Measuring Loss Energies of Half-Bridges. In: IEEE (ed.) 2022 24th European Conference on Power Electronics and Applications (EPE′22 ECCE Europe). pp. 1–9 (2022).
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  @inproceedings{9907102, abstract = {For the optimal design of power electronic systems the exact knowledge about the different loss mechanisms of the used semiconductor devices is essential. However, conventional measurement methods based on electrical parameters are facing their limits, as switching speed of modern power devices is steadily increasing enabled by the use of wide bandgap semiconductor materials. For this reason, calorimetric measurement techniques are becoming more and more popular. However, due to the nature of their principle, calorimetric measurement methodologies can usually only determine the total power losses of the device under test. To overcome this disadvantage a methology which combines different calorimetric and electrical measurements to separately determine the switching and conduction energies in a half-bridge with an ohmic-inductive load while maintaining the accuracy of calorimetric measurement methods is developed. In addition, the presented methodology identifies the switching energies of the two different switching transitions within one switching period, depending on the load current as well as the dead time, considering thermal influences. A hardware setup for the presented methology, is realized. Using this test setup, the loss energies of a half-bridge based on silicon carbide MOSFETs are investigated. The resulting measurements are presented and verified by measurements with a power analyzer.}, author = {Haarer, Jörg and Eckstein, Mattea and Ziegler, Philipp and Marx, Philipp and Hirning, David and Roth-Stielow, Jörg}, booktitle = {2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe)}, editor = {IEEE}, language = {en}, month = {09}, pages = {1-9}, title = {A Calorimetric and Electrical Method for Measuring Loss Energies of Half-Bridges}, url = {https://ieeexplore.ieee.org/document/9907102}, year = 2022 }
  Link
  https://ieeexplore.ieee.org/document/9907102

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https://orcid.org/0000-0002-3768-2151

Mattea Eckstein, M.Sc.

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