Publications

Vasken Ketchedjian, André Haspel, Chris Hermann, and Jörg Roth-Stielow. A Novel Weight Function and Interpolation Method for the Field Weakening Strategy of a Synchronous Reluctance Machine. 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP), 1-8, November 2023. [PUMA: haspel hermann ilea ketchedjian roth-stielow spec] URL

André Haspel, Vasken Ketchedjian, and Jörg Roth-Stielow. Multilevel Inverter with Variable Voltage Levels for Optimized Current Ripple Emulation of Three-Phase Machines. 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP), 1-8, November 2023. [PUMA: haspel ilea ketchedjian roth-stielow spec] URL

Vasken Ketchedjian, André Haspel, Philipp Marx, and Jörg Roth-Stielow. Methods to Reduce the Errors in the d- and q-Inductance Estimation of a SynRM by Considering the Residual Magnetism. 2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe), 1-9, September 2023. [PUMA: ecce epe haspel ilea ketchedjian marx roth-stielow] URL

Philipp Marx, Boya Qi, Philipp Ziegler, Jörg Haarer, Vasken Ketchedjian, and Jörg Roth-Stielow. Synchronization of Switching Transitions in Parallel Modules of Integrated Modular Motor Drives for Common Mode Noise Reduction. 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia), 655-662, May 2023. [PUMA: ecce haarer icpe ilea ketchedjian marx roth-stielow ziegler] URL

André Haspel, Kim Kaiser, Vasken Ketchedjian, and Jörg Roth-Stielow. Harmonic Current Controller Design for Anisotropic Synchronous Machines based on a Machine Model in Harmonic Reference Frame. 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia), 2979-2986, May 2023. [PUMA: ecce haspel icpe ilea ketchedjian roth-stielow] URL

André Haspel, Vasken Ketchedjian, Philipp Marx, Mattea Eckstein, and Jörg Roth-Stielow. Composition of the Countervoltage for Power-Hardware-in-the-Loop Emulators for Three-Phase Machines. 2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe), 1-10, September 2023. [PUMA: ecce eckstein epe haspel ilea ketchedjian marx roth-stielow] URL

André Haspel, Vasken Ketchedjian, Marcel Kirschner, and Joerg Roth-Stielow. Impacts of Cross-Saturation on Sensorless Control of Synchronous Machines using Alternating Signal Injection. PCIM Europe 2023; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 1-10, May 2023. [PUMA: haspel ilea ketchedjian kirschner pcim roth-stielow] URL

Vasken Ketchedjian, Andre Haspel, Johannes Schuster, and Joerg Roth-Stielow. Modeling of the Drive Train and Energy Management Strategy for a Hybrid Midsize Multifunctional Vehicle. PCIM Europe 2023; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 1-10, May 2023. [PUMA: haspel ilea ketchedjian pcim roth-stielow schuster] URL

Vasken Ketchedjian, André Haspel, Jörg Haarer, and Jörg Roth-Stielow. An Open-Loop Control for the Determination of the MTPV-Trajectory of a SynRM. In IEEE (Eds.), 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia), 2714-2720, May 2022. [PUMA: haarer haspel ilea ipec ketchedjian roth-stielow] URL

Vasken Ketchedjian, Manuel Fischer, Maximilian Nitzsche, and Jörg Roth-Stielow. Two Torque Control Algorithms of a Synchronous Reluctance Motor Drive for the Entire Operating Speed Range. 2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe), P.1-P.9, September 2021. [PUMA: fischer ilea ketchedjian nitzsche roth-stielow] URL

M. Nitzsche, J. Haarer, V. Ketchedjian, and J. Roth-Stielow. Design of a 9-Level Flying Capacitor Inverter with Very Fast Response of the Controller. IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, 2424-2429, October 2020. [PUMA: haarer iecon ilea ketchedjian nitzsche roth-stielow] URL

M. Fischer, J. Ruthardt, V. Ketchedjian, P. Ziegler, M. Nitzsche, and J. Roth-Stielow. Four-Level Inverter with Variable Voltage Levels for Hardware-in-the-Loop Emulation of Three-Phase Machines. 2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe), P.1-P.8, September 2020. [PUMA: epe fischer ilea ketchedjian nitzsche roth-stielow ruthardt ziegler] URL

Steffen Bintz, Daniel Häfele, Vasken Ketchedjian, and Jörg Roth-Stielow. Parallel-Serial-Rectifier for Power-to-Hydrogen Applications. 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), P.1-P.11, Genova, Italy, September 2019. [PUMA: bintz ecce epe ilea ketchedjian roth-stielow] URL

Johannes Schuster, Vasken Ketchedjian, and Jörg Roth-Stielow. Sensorless Position Estimation for an Externally Excited Synchronous Machine over the Whole Speed Range. In Stuttgart Mesago PCIM GmbH (Eds.), International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management Proceedings (PCIM), 1192-1198, VDE, June 2018. [PUMA: ilea ketchedjian pcim roth-stielow schuster]

Johannes Schuster, Vasken Ketchedjian, and Jorg Roth-Stielow. Sensorless position estimation at low speeds till standstill with reduced filtering requirements for an externally exited synchronous machine. 2017 IEEE International Symposium on Sensorless Control for Electrical Drives (SLED), IEEE, September 2017. [PUMA: ilea ketchedjian roth-stielow schuster sled] URL