EPE Association: EPE 2025 - DS3g: Electrical Machines and Actuators

EPE 2025 - DS3g: Electrical Machines and Actuators
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2025 - Conference > EPE 2025 - Topic 12: Electrical Machines and Drive Systems > EPE 2025 - DS3g: Electrical Machines and Actuators

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   Common Mode Voltage Behavior of a 3 Level ANPC Inverter on Vehicle Auxiliary Drives
By Maximilian WEIGELT, Fabian LORENZ, Ralf WERNER, Daniel PAUL [View]
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Abstract: EV drives are mostly made up of PMSM's driven by 2-Level voltage source inverters. The resulting common-mode voltage can significantly shorten the service life of the bearings. The application of a 3-level ANPC inverter on a 10kW AC compressor is described including comparative measurements of both inverter types.

   Comparative Loss Analysis of an Axial-Flux PMSM Fed by a Modular Multilevel Inverter (BM3) Versus a Two-level Inverter (SVPWM)
By Tobias Manfred HÖGERL, Julian ESTALLER, Johannes BUBERGER, Wolfgang GRUPP, Andreas WIEDENMANN, Wolfgang BLIEMETSRIEDER, Christian ROTHMUND, Sebastian POHLMANN, Thomas WEYH, Manuel KUDER [View]
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Abstract: Loss reduction of up to 11 \% in an AFPM machines is achieved using a Modular Multilevel Converter, enhancing efficiency and extending the range of electric vehicles. Simulations highlight significant advantages in reducing THD by up to 16 \%, contributing to increased sustainability and resource conservation in all sectors of electric vehicles.

   Design of a Hybrid ANPC Three Level Inverter for High Speed Bearingless Permanent Magnet Synchronous Machines
By Maximilian WEIGELT, Fabian LORENZ, Ralf WERNER [View]
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Abstract: This paper presents an experimental validated Hybrid ANPC Three Level Inverter for High Speed Bearingless Motors. The design process and implementation of the hybrid ANPC inverter system considers the requirements for power electronics set by the Bearingless PMSM.

   Experimental Evaluation in the Design of MRAS-Based Speed Estimator for Variable Pole Induction Machines: Reference Frame Selection
By Mesfin TILAHUNE, Luca VANCINI, Omer IKRAM UL HAQ, Michele MENGONI, Mengesha MAMO, Luca PERETTI [View]
[Download]

Abstract: Variable-pole induction machines are becoming in-creasingly popular in electromobility due to their design flex-ibility, high torque density, and competitive energy efficiency.The elimination of speed sensors not only reduces costs butalso enhances fault tolerance. Accurate rotor flux and speedestimation are crucial for achieving high-performance sensorlesscontrol. This paper explores the selection of reference frames forspeed estimation by expanding the speed-torque profile throughmagnetic pole transitions. It compares the performance of aspeed estimator in the stationary (aß) reference frame withthat in the rotating (dq) frame across various operating points.The experimental results show that the stationary frame offersimproved performance, primarily due to reduced computationaltime, especially in the low-speed range.

EPE 2025 - DS3g: Electrical Machines and Actuators
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2025 - Conference > EPE 2025 - Topic 12: Electrical Machines and Drive Systems > EPE 2025 - DS3g: Electrical Machines and Actuators
	[return to parent folder]

	Common Mode Voltage Behavior of a 3 Level ANPC Inverter on Vehicle Auxiliary Drives By Maximilian WEIGELT, Fabian LORENZ, Ralf WERNER, Daniel PAUL	[View] [Download]
Abstract: EV drives are mostly made up of PMSM's driven by 2-Level voltage source inverters. The resulting common-mode voltage can significantly shorten the service life of the bearings. The application of a 3-level ANPC inverter on a 10kW AC compressor is described including comparative measurements of both inverter types.

	Comparative Loss Analysis of an Axial-Flux PMSM Fed by a Modular Multilevel Inverter (BM3) Versus a Two-level Inverter (SVPWM) By Tobias Manfred HÖGERL, Julian ESTALLER, Johannes BUBERGER, Wolfgang GRUPP, Andreas WIEDENMANN, Wolfgang BLIEMETSRIEDER, Christian ROTHMUND, Sebastian POHLMANN, Thomas WEYH, Manuel KUDER	[View] [Download]
Abstract: Loss reduction of up to 11 \% in an AFPM machines is achieved using a Modular Multilevel Converter, enhancing efficiency and extending the range of electric vehicles. Simulations highlight significant advantages in reducing THD by up to 16 \%, contributing to increased sustainability and resource conservation in all sectors of electric vehicles.

	Design of a Hybrid ANPC Three Level Inverter for High Speed Bearingless Permanent Magnet Synchronous Machines By Maximilian WEIGELT, Fabian LORENZ, Ralf WERNER	[View] [Download]
Abstract: This paper presents an experimental validated Hybrid ANPC Three Level Inverter for High Speed Bearingless Motors. The design process and implementation of the hybrid ANPC inverter system considers the requirements for power electronics set by the Bearingless PMSM.

	Experimental Evaluation in the Design of MRAS-Based Speed Estimator for Variable Pole Induction Machines: Reference Frame Selection By Mesfin TILAHUNE, Luca VANCINI, Omer IKRAM UL HAQ, Michele MENGONI, Mengesha MAMO, Luca PERETTI	[View] [Download]
Abstract: Variable-pole induction machines are becoming in-creasingly popular in electromobility due to their design flex-ibility, high torque density, and competitive energy efficiency.The elimination of speed sensors not only reduces costs butalso enhances fault tolerance. Accurate rotor flux and speedestimation are crucial for achieving high-performance sensorlesscontrol. This paper explores the selection of reference frames forspeed estimation by expanding the speed-torque profile throughmagnetic pole transitions. It compares the performance of aspeed estimator in the stationary (aß) reference frame withthat in the rotating (dq) frame across various operating points.The experimental results show that the stationary frame offersimproved performance, primarily due to reduced computationaltime, especially in the low-speed range.