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    Inffeldgasse 18 Graz

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Research Output 1992 2020

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Conference contribution
2020

Low-Cost BLDC Claw-Pole Motor Design for Fan Applications with Reduced Cogging Torque and Balanced Axial Forces

Leitner, S., Grübler, H. & Muetze, A., 15 Mar 2020, 2020 IEEE Applied Power Electronic Conference and Exposition (APEC). IEEE Xplore

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2019

Angle Modulated Switching Strategy for Fractional Horsepower BLDC Motors for Improved Electromagnetic Compatibility

Krall, F., Grübler, H. & Muetze, A., 2 Sep 2019, 21th European Conference on Power Electronics and Applications (EPE'19 ECCE Europe). IEEE Xplore

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Effects of Manufacturing Imperfections and Design Parameters on Radial Magnetic Forces in the BLDC Claw-Pole Motor

Leitner, S., Grübler, H. & Muetze, A., 13 May 2019, 2019 IEEE International Electric Machines and Drives Conference (IEMDC). IEEE Xplore, p. 2167-2173

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Rheometer-Based Cogging Torque Measurement for Sub-Fractional HP Permanent Magnet Motors

Leitner, S., Krenn, G., Grübler, H. & Muetze, A., 19 Jun 2019, 2019 IEEE International Transportation and Electrification Conference and Expo (ITEC). IEEE Xplore, p. 1 -7

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Space Mapping-Based Fractional Horsepower Permanent Magnet Motor Design

Gruebler, H., Krall, F., Leitner, S. & Muetze, A., 13 May 2019, 2019 IEEE International Electric Machines and Drives Conference (IEMDC). Institute of Electrical and Electronics Engineers, p. 455-460 6 p. 8785135

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Permanent magnets
Fractional horsepower motors
Physics
Finite element method
2018

Cogging Torque Minimization on a Mass-Produced Sub-Fractional Horsepower Brushless Direct Current Claw-Pole Motor

Leitner, S., Grübler, H. & Muetze, A., 2018, 2018 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Xplore, p. 6083 - 6089

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Degradation of magnetic properties of electrical steel sheets due to different cutting techniques

Bali, M., 14 Feb 2018, EnInnov 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Design Considerations to Improve the Efficiency of an AC-AC Converter at Partial Load

Mahafzah, K. & Krischan, K., 2018, 15. Symposium Energieinnovation: Neue Energie für unser bewegtes Europa. Graz: Institut für Elektrizitätswirtschaft und Energieinnovation, Technische Universität Graz , p. 357 - 358 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Determination of the Energy Efficiencies of Inverter-Fed Induction Machines

Bacher, J. P. & Strauss, S., 2018, 15. Symposium Energieinnovation. p. 355-356

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Efficiency Determination of Inverter-Fed Induction Machines and the Impacts of the Inverter Supply

Bacher, J. P., Strauss, S. & Muetze, A., 19 Jun 2018, SPEEDAM 2018 – Proceedings. p. 902-907 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Full-Size Converter Operation of Large Hydro Power Generators: Generator Design Aspects

Holzer, T. & Muetze, A., 6 Dec 2018, 2018 IEEE Energy Conversion Congress and Exposition (ECCE). p. 7363-7368

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Impact of rotor position sensor errors on speed controlled permanent magnetized synchronous machines

Gachter, J., Hirz, M. & Seebacher, R., 9 Feb 2018, 2017 IEEE 12th International Conference on Power Electronics and Drive Systems, PEDS 2017. Institute of Electrical and Electronics Engineers, Vol. 2017-December. p. 822-830 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Rotors
Sensors
Electric machinery
Speed control
Torque control

Loss-Surface-Based Iron Loss Prediction for Fractional Horsepower Electric Motor Design

Gruebler, H., Krall, F., Leitner, S. & Muetze, A., 30 Oct 2018, 2018 20th European Conference on Power Electronics and Applications, EPE 2018 ECCE Europe. Institute of Electrical and Electronics Engineers, 8515633

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Fractional horsepower motors
Iron
Fluxes

Low-Cost Sub-Fractional Horsepower Brushless Direct Current Claw-Pole Machine Topology for Fan Applications

Leitner, S., Grübler, H. & Muetze, A., 2018, 2018 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE Xplore, p. 1242 - 1248

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Non-Linear Space-Dependency of Main and Differential Inductances of Permanent Magnet Electric Machines

Bacher, J. P. & Muetze, A., 19 Jun 2018, SPEEDAM 2018 – Proceedings. p. 286-291 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Normalization-based approach to electric motor BVR related capacitances computation

Ahola, J., Muetze, A., Niemela, M. & Romanenko, A., 18 Apr 2018, APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers, Vol. 2018-March. p. 2868-2874 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Rotors (windings)
Electric motors
Stators
Capacitance
Bearings (structural)

Unterstützung eines unsymmetrischen Netzes unter Ausnutzung der Induktivitäten einer umrichtergespeisten Asynchronmaschine als Energiespeicher

Krischan, K. & Seebacher, R., 2018, 15. Symposium Energieinnovation: Neue Energie für unser bewegtes Europa. Graz: Verlag der Technischen Universität Graz, p. 361-362 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2017

Electric machine utilization during the post-fault operation after inverter open circuit faults

Eickhoff, H., Strangas, E. G. & Mütze, A., 2017, Proceedings of 2017 IEEE 11th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED). Institute of Electrical and Electronics Engineers, p. 201-207 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Electric machinery
Networks (circuits)
Topology
Finite element method
Temperature

Foil conductor concentrated coil windings for modular permanent magnet AC machines

Rios, M., Venkataramanan, G. & Mütze, A., Oct 2017, 2017 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Xplore, p. 1191 - 1196 (IEEE Energy Conversion Congress and Exposition (ECCE)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

GriDConv: HVDC-DC Converter for High Voltage Direct Current Transmission Systems – Background and Design

Krischan, K., Schichler, U., Deutschmann, B., Reichhartinger, M., Auinger, B., Vollmaier, F., Horn, M. & Renner, H., 26 Apr 2017, 15. EMV-Fachtagung / Leistungselektronikschau: OVE Schriftenreihe Nr. 87. Winkler, G. (ed.). Wien: Österreichischer Verband für Elektrotechnik, Vol. 87. p. 41 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

GriDConv: HVDC-DC Converter for High Voltage Direct Current Transmission Systems – The Electronic System

Deutschmann, B., Auinger, B., Vollmaier, F., Krischan, K., Schichler, U., Horn, M., Reichhartinger, M. & Renner, H., 26 Apr 2017, 15. EMV-Fachtagung / Leistungselektronikschau: OVE Schriftenreihe Nr. 87. Winkler, G. (ed.). Wien: Österreichischer Verband für Elektrotechnik, Vol. 87. p. 42 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Impact of Rotor Position Sensor Errors on Speed Controlled Permanent Magnetized Synchronous Machine

Gächter, J., Hirz, M. & Seebacher, R., 15 Dec 2017, 12th IEEE International Conference on Power Electronics and Drive Systems (IEEE PEDS 2017). p. 822-830

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Improved Switching Strategy for a Single-Phase Brushless Direct Current Motor and its Impact on Motor Efficiency

Grübler, H., Leitner, S., Muetze, A. & Schoener, G., 3 Aug 2017, 2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017. Institute of Electrical and Electronics Engineers, 8002331

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Torque
Copper
Energy conversion
Conversion efficiency

Magnetic properties and their relation to the no-load noise and no-load losses of large power transformers

Tanzer, T., Pregartner, H., Riedenbauer, M., Labinsky, R., Witlatschil, M., Mütze, A. & Krischan, K., 21 May 2017, Magnetic properties and their relation to the no-load noise and no-load losses of large power transformers. Miami, FL: IEEE Xplore, p. 1-6 (IEEE).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Magnetostriction and its relation to the no-load noise of power transformers

Tanzer, T., Pregartner, H., Labinsky, R., Witlatschil, M., Mütze, A. & Krischan, K., 21 May 2017, Magnetic properties and their relation to the no-load noise and no-load losses of large power transformers. Miami, FL: IEEE Xplore, p. 1-6 (IEEE).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Performance enhancement of a modular test system for power semiconductors for HTOL testing by use of an embedded system

Sleik, R., Glavanovics, M., Krischan, K. & Mütze, A., 11 Sep 2017, Proc. 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe). Warsaw: IEEE Xplore, p. 1-8 (European Conference on Power Electronics and Applications ).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Quasi-Constant Frequency Secondary Side Controlled Flyback Concept with Variable ON-Time

Connaughton, A., Leong, K., Deboy, G., Talei, A. P. & Bernacchia, G., 16 May 2017, PCIM Europe 2017; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management; Proceedings of. VDE Verlag GmbH

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Switching frequency
Energy transfer
Switches
Communication

Reduction of the suction losses through reed valves in hermetic reciprocating compressors using a magnet coil

Hopfgartner, J. W., Posch, S., Zuber, B., Almbauer, R., Krischan, K. & Stangl, S., 2017, Proceedings of the International Conference on Compressors and their Systems 2017, London, GB.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

The degradation depth of electrical steel sheets due to mechanical and laser cutting

Bali, M. & Mütze, A., 2017, Proceedings of 2017 IEEE 11th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED). Institute of Electrical and Electronics Engineers, p. 201-207 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

The Effect of Rotor Position Errors on the Dynamic Behavior of Field-Orientated Controlled PMSM

Gächter, J., Hirz, M. & Seebacher, R., 22 May 2017, Electric Machines and Drives Conference (IEMDC), 2017 IEEE International. IEEE. (ed.). 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2016

A two-step analytic design and optimization of small variable speed PMSMs for home appliances

Martinez Garcia Tenorio, J., Krischan, K. & Mütze, A., Sep 2016, 2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe). p. 1-10 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Domestic appliances
Rotors
Iron
Electric motors
Stators

Control implementation for a wide voltage range high efficiency power supply utilizing low voltage MOSFETs

Konrad, W., Deboy, G. & Mütze, A., 2016, Applied Power Electronics Conference and Exposition. ., p. 1-7

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Discussion of machine placement and integration on the thermal design of HEV IPM machines

Paar, C. J. & Mütze, A., 31 Jul 2016, Transportation Electrification Conference and Expo (ITEC), 2016 IEEE.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Efficiency Enhancement of a Three Phase Hard Switching Inverter Under Light Load Conditions

Mahafzah, K. A. A. K., Krischan, K. & Mütze, A., Oct 2016, IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society. p. 3372-3377 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

File
Domestic appliances
Networks (circuits)
Power transistors

Efficiency Enhancement of a Three Phase Soft Switching Inverter Under Light Load Conditions

Mahafzah, K. A. A. K., Krischan, K. & Mütze, A., Oct 2016, IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society. p. 3378-3383 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

File
Poles
Switches
Topology
Power transistors

Enhanced and fast detection of open circuit faults in inverters for electric drives

Eickhoff, H., Seebacher, R., Mütze, A. & Strangas, E., 2016, Proceedings of 2016 IEEE Transportation Electrification Conference and Expo (ITEC) . Institute of Electrical and Electronics Engineers, p. 1 - 6 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Electric drives
Networks (circuits)
Electric current control
Permanent magnets
Experiments

Experimental determination of specific power losses and magnetostriction of electrical steel coils

Tanzer, T., Pregartner, H., Mütze, A. & Krischan, K., 2016, 2016 XXII International Conference on Electrical Machines (ICEM). p. 2230-2236

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Magnetostriction
Steel
Inspection
Fluxes

Influence of different cutting techniques on the magnetic characteristics of electrical steels determined by a remagraph

Bali, M. & Muetze, A., 16 Feb 2016, Proceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015. Institute of Electrical and Electronics Engineers, p. 1190-1196 7 p. 7409212

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Steel
Steel sheet
Hysteresis
Iron

Minimization of the Synrel’s Oscillating Torque by Calculation of the Appropriate Skew Angle

Martinez Garcia Tenorio, J., Krischan, K. & Mütze, A., 2016, Proceedings : XXIV Symposium Electromagnetic Phenomena in Nonlinear Circuits: June 28 - July 1, 2016, Helsinki, Finland : EPNC 2016. Helsinki: Aalto University, 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Torque
Reluctance motors
Synchronous motors

Modular Test System Architecture for Device, Circuit and System Level Reliability Testing

Sleik, R., Glavanovics, M., Einspieler, S., Mütze, A. & Krischan, K., 2016, IEEE Applied Power Electronics Conference and Exposition. ., p. 1-7

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Open Access
File

New control concept for soft-switching Flyback converters with very high switching frequency

Connaughton, A., Krischan, K., Leong, K. K. & Mütze, A., 12 May 2016, Applied Power Electronics Conference and Exposition (APEC), 2016 IEEE. Institute of Electrical and Electronics Engineers, p. 355-361

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Switching frequency
Switches

Post-fault operation strategy for single switch open circuit faults in electric drives

Eickhoff, H., Seebacher, R., Mütze, A. & Strangas, E., 2016, Proceedings 2016 IEEE Energy Conversion Congress and Exposition (ECCE) . Institute of Electrical and Electronics Engineers, p. 1-6 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Electric drives
Switches
Networks (circuits)
Experiments

Simulating the change of magnetic properties of electrical steel sheets due to punching

Woehrnschimmel, R., Muetze, A., Ertl, S., Kapeller, H., Winter, O. & Horwatitsch, DI., 16 Feb 2016, Proceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015. Institute of Electrical and Electronics Engineers, p. 1324-1328 5 p. 7409233

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Punching
Steel sheet
Magnetic properties
Iron
Magnetic hysteresis

Thermal performance modeling of foil wound concentrated coils in electric machines

Rios, M., Venkataramanan, G., Mütze, A. & Eickhoff, H., Sep 2016, 2016 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Xplore, p. 1-8 (IEEE Energy Conversion Congress and Exposition (ECCE)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2015

A single stage 54V to 1.8V multi-phase cascaded buck voltage regulator module

Leong, K. K., Deboy, G., Krischan, K. & Muetze, A., 8 May 2015, APEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition. May ed. Institute of Electrical and Electronics Engineers, Vol. 2015-May. p. 1966-1973 8 p. 7104617

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Voltage regulators
Electric potential
Farms
Microprocessor chips
Servers

Comparison of induction and synchronous reluctance machine based actuators for elevated temperature environments

Lang, K., Mütze, A., Bauer, R. & Pircher, S., 2015, Proceedings 17th European Conference on Power Electronics and Applications (EPE). ., p. 1-10

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Design of PM free brushless AC machine based actuators for elevated temperature environments

Lang, K., Muetze, A., Bauer, R. & Rossegger, W., 2015, Proceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015. Institute of Electrical and Electronics Engineers, p. 696-702 7 p. 7409135

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Actuators
Machine design
Temperature
Permanent magnets
Insulation

Determination of the influences of different lamination steel cutting techniques on the steel’s BH-curves determined by means of a remagraph

Bali, M. S. J. & Mütze, A., 2015, IEEE International Electric Machines & Drives Conference. ., p. 1190-1196

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Effects of electrostatic discharges on bearing grease electric properties

Romanenko, A., Mütze, A. & Ahola, J., 2015, IEEE International Electric Machines & Drives Conference. ., p. 254-259

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Epstein frame measurement based determination of original non-degraded and fully degraded magnetic characteristics of material submitted to laser cutting

Bali, M. S. J., 2015, Proceedings 7th IEEE Energy Conversion Congress and Exposition. ., p. 6096-6101

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review