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Institut für Leistungselektronik und Elektrische Antriebe
Institut
Team
Hirning, M.Sc., David

David Hirning, M.Sc.

Herr

Akademischer Mitarbeiter
Institut für Leistungselektronik und Elektrische Antriebe
[Foto: ILEA]

Kontakt

+49 711 685 67371
+49 711 685 67378
E-Mail
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Pfaffenwaldring 47
70569 Stuttgart
Deutschland
Raum: 1.251, 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
2023
1. Ziegler, P., Bura, M., Haarer, J., Marx, P., Hirning, D., Roth-Stielow, J.: Signal Processing Design for Wide Bandwidth Hybrid Current Sensor based on Enhanced Analog Operational Amplifier Circuit. 2023, IEEJ Journal of Industry Applications. Volume 12 Pages, 635–642 (2023).
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  @article{ziegler2023signal, abstract = {Hybrid current sensors are suitable for wide bandwidth current measurement. They entail the fusion of two different measurement circuits, one for DC and low-frequency current and another for high-frequency current. Thus, the advantages of the different measurement principles are incorporated in one current sensor. Hybrid current sensors generate output signals through a superposition of the signals from the low-frequency and high-frequency current sensors. This is realized using analog signal processing by means of an analog operational amplifier circuit. Realization of the superposition of the frequency responses of the different measurement circuits to achieve a constant gain in the transition area is challenging. This study focused on the analog signal processing and its enhancement. Specifically, two possible signal processing approaches to increase the bandwidth based on the state-of-the-art realization of a low-pass filter were devised. These approaches were investigated using a simulation model. Frequency response measurements using a hybrid current sensor based on tunneling magnetoresistance sensors and a Rogowski coil were used for verification. The results show that by enhancing the signal processing, the bandwidth of the current sensors can be significantly increased.}, author = {Ziegler, Philipp and Bura, Michael and Haarer, Jörg and Marx, Philipp and Hirning, David and Roth-Stielow, Jörg}, journal = {2023, IEEJ Journal of Industry Applications}, number = {Issue 4}, pages = {635-642}, title = {Signal Processing Design for Wide Bandwidth Hybrid Current Sensor based on Enhanced Analog Operational Amplifier Circuit}, url = {https://www.jstage.jst.go.jp/article/ieejjia/12/4/12_22007463/_article}, volume = {Volume 12 Pages }, year = 2023 }
  Link
  https://www.jstage.jst.go.jp/article/ieejjia/12/4/12_22007463/_article
2022
1. Ziegler, P., Bura, M., Haarer, J., Marx, P., Hirning, D., Roth-Stielow, J.: Optimization Approaches for the Signal Processing of Hybrid Current Sensors. In: IEEE (ed.) 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia). pp. 506–513 (2022).
  - BibTeX
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  BibTeX
  @inproceedings{9807001, abstract = {Hybrid current sensors are suitable devices for wide bandwidth current measurement. They combine two different measurement circuits, one for DC and low-frequency current measurement and another for high frequency current measurement. This combines the advantages of different measurement principles in one current sensor. The output signal of the hybrid current sensor is generated through a superposition of the low-frequency and high-frequency current sensor. This is realized using analog signal processing by means of an analog operational amplifier circuit. The challenge is to superpose the frequency responses of the different measurement circuits achieving a constant gain in the transition area. This paper focuses on the analog signal processing and its optimization. Based on a state-of-the-art realization, two possible optimization approaches of the signal processing are presented to increase the bandwidth. These optimization approaches are investigated in a simulation model and verified by frequency response measurements of a hybrid current sensor based on tunneling magnetoresistance sensors and a Rogowski coil.}, author = {Ziegler, Philipp and Bura, Michael and Haarer, Jörg and Marx, Philipp and Hirning, David and Roth-Stielow, Jörg}, booktitle = {2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)}, editor = {IEEE}, month = {05}, pages = {506-513}, title = {Optimization Approaches for the Signal Processing of Hybrid Current Sensors}, url = {https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9807001}, year = 2022 }
  Link
  https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9807001
2. Hirning, D., Bauer, L., Ruthardt, J., Haarer, J., Ziegler, P., Roth-Stielow, J.: Online Junction Temperature Measurement of SiC-MOSFETs via Gate Impedance Using the Gate-Signal Injection Method. 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{9907316, abstract = {This paper presents a method for junction temperature monitoring of SiC-MOSFETs based on a high-frequency gate-signal injection. The signal is injected during steady state (e.g. off-state) resulting in a current response, which depends on the temperature dependent gate impedance. The external gate resistor is used as a current shunt to capture the current response. The resulting signal contains the junction temperature information due to the temperature dependency of the gate impedance. This paper focuses on a sinusoidal approach to overcome the challenges due to the temperature dependent parasitic capacitance of the gate circuit. Measurements show the proof of concept, however, there are still challenges to face.}, author = {Hirning, David and Bauer, Luca and Ruthardt, Johannes and Haarer, Jörg and Ziegler, Philipp and Roth-Stielow, Jörg}, booktitle = {2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe)}, editor = {IEEE}, isbn = {978-9-0758-1539-9}, month = {09}, pages = {1-9}, title = {Online Junction Temperature Measurement of SiC-MOSFETs via Gate Impedance Using the Gate-Signal Injection Method}, url = {https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9907316}, year = 2022 }
  Link
  https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9907316
3. Marx, P., Seybold, F., Ziegler, P., Hirning, D., Roth-Stielow, J.: Investigations on the Active Reduction of Common Mode Noise with Opposing Noise Sources. In: 2022 24th European Conference on Power Electronics and Applications (EPE′22 ECCE Europe). pp. 1–9. IEEE (2022).
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  @inproceedings{9907509, abstract = {Conventional filters needed for the electromagnetic compatibility lower the system power density by consuming additional space in power electronic setups. To increase the power density, alternatives for these filters are needed. If the power electronic setup offers the possibility to synchronize two opposing switching transitions, the common mode noise can be reduced without additional filters. In this case two opposing noise currents reduce one another by superimposition. For power electronic setups which do not offer the possibility to synchronize switching transitions, this paper presents an approach which uses additional half bridges as opposing noise sources connected to a replicated grounding impedance to create the opposing common mode noise. The main goal of the opposing noise source is to create similar potential changes as the power electronic setup over the replicated grounding impedance. The replicated grounding impedance emulates the grounding impedance of an ohmic inductive load with discrete elements. The achieved reduction of the common mode noise with this approach is evaluated with measurements.}, author = {Marx, Philipp and Seybold, Felix and Ziegler, Philipp and Hirning, David and Roth-Stielow, Jörg}, booktitle = {2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe)}, isbn = {978-9-0758-1539-9}, month = {09}, pages = {1-9}, publisher = {IEEE}, title = {Investigations on the Active Reduction of Common Mode Noise with Opposing Noise Sources}, url = {https://ieeexplore.ieee.org/document/9907509}, year = 2022 }
  Link
  https://ieeexplore.ieee.org/document/9907509
4. Ziegler, P., Festerling, T., Haarer, J., Marx, P., Hirning, D., Roth-Stielow, J.: Influences of Parasitic Capacitances in Wide Bandwidth Rogowski Coils for Commutation Current Measurement. In: IEEE (ed.) 2022 24th European Conference on Power Electronics and Applications (EPE′22 ECCE Europe). pp. 1–10 (2022).
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  @inproceedings{9907377, abstract = {This paper focuses on the capacitive coupling of PCB integrated Rogowski coils for commutation current measurement. It investigates the cause and the influence of parasitic capacitances on the measurement signal. It discusses the advantages of a differential winding arrangement and the reasons why shielding is not an option in this application. The parasitic capacitance of three different winding arrangements are measured and compared to a Rogowski coil approach with minimized parasitic capacitance. On the base of sensor prototypes, the influence on the measurement is investigated in a pulsed current source.}, author = {Ziegler, Philipp and Festerling, Tobias and Haarer, Jorg and Marx, Philipp and Hirning, David and Roth-Stielow, Jorg}, booktitle = {2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe)}, editor = {IEEE}, isbn = {978-9-0758-1539-9}, month = {09}, pages = {1-10}, title = {Influences of Parasitic Capacitances in Wide Bandwidth Rogowski Coils for Commutation Current Measurement}, url = {https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9907377}, year = 2022 }
  Link
  https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9907377
5. 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
2021
1. Ruthardt, J., Hirning, D., Sharma, K., Nitzsche, M., Ziegler, P., Fischer, M., Roth-Stielow, J.: Investigations on Online Junction Temperature Measurement for SiC-MOSFETs Using the Gate-Signal Injection Method. In: 2021 IEEE Energy Conversion Congress and Exposition (ECCE). pp. 5354–5359 (2021). https://doi.org/10.1109/ECCE47101.2021.9595166.
  - BibTeX
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  @inproceedings{9595166, abstract = {This paper presents investigations on the suitability of using the gate-signal injection method for junction temperature measurement of SiC-MOSFETs. The method is based on the temperature sensitivity of the internal gate resistance. A high frequency signal is injected into the gate circuit while the MOSFET is operating. The response of the injected signal is a high frequency current, which depends on the temperature sensitive gate circuit’s impedance. This current causes a voltage drop across the external gate resistor. This voltage depends on the junction temperature and is evaluated. This method was successfully implemented on Si-IGBTs in the past. However, there are challenges to face in implementing this method on SiC-MOSFETs. This paper shows the challenges and proposes solutions to overcome them.}, author = {Ruthardt, Johannes and Hirning, David and Sharma, Kanuj and Nitzsche, Maximilian and Ziegler, Philipp and Fischer, Manuel and Roth-Stielow, Jörg}, booktitle = {2021 IEEE Energy Conversion Congress and Exposition (ECCE)}, doi = {10.1109/ECCE47101.2021.9595166}, issn = {2329-3748}, month = {10}, pages = {5354-5359}, title = {Investigations on Online Junction Temperature Measurement for SiC-MOSFETs Using the Gate-Signal Injection Method}, url = {https://ieeexplore.ieee.org/document/9595166}, year = 2021 }
  Link
  https://ieeexplore.ieee.org/document/9595166

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