Klaus Krischan

Ass.Prof. Dipl.-Ing. Dr.techn.

1990 …2019
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Research Output 1992 2019

2019

Variable ON-Time Control Scheme for the Secondary Side Controlled Flyback Converter

Connaughton, A. M., Talei, A. P., Leong, K. K., Krischan, K. & Muetze, A., 1 Mar 2019, In : IEEE Transactions on Power Electronics. 34, 3, p. 2416-2426 11 p., 8371652.

Research output: Contribution to journalArticleResearchpeer-review

Switching frequency
Hardware
Networks (circuits)
Electric potential
Design optimization
2018

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

Experimental Determination of Specific Power Losses and Magnetostriction Strain of Grain-Oriented Electrical Steel Coils

Tanzer, T., Pregartner, H., Muetze, A. & Krischan, K., Mar 2018, In : IEEE Transactions on Industry Applications. 54, 2, p. 1235-1244 10 p.

Research output: Contribution to journalArticleResearchpeer-review

Magnetostriction
Steel
Power transformers
Inspection
Electromagnetic compatibility
DC-DC converters
Topology
Electric potential

Magnetostriction of Electrical Steel and Its Relation to the No-Load Noise of Power Transformers

Tanzer, T., Pregartner, H., Riedenbauer, M., Labinsky, R., Witlatschil, M., Muetze, A. & Krischan, K., 1 Sep 2018, In : IEEE Transactions on Industry Applications. 54, 5, p. 4306-4314 9 p., 8367848.

Research output: Contribution to journalArticleResearchpeer-review

Magnetostriction
Power transformers
Steel
Magnetic cores
Steel sheet

Smooth Reference Modulation to Improve Dynamic Response in Electric Drive Systems

Yazdanian, M., Mehrizi-Sani, A., Seebacher, R., Krischan, K. & Muetze, A., Jul 2018, In : IEEE Transactions on Power Electronics. 33, 7, p. 6434-6443 10 p.

Research output: Contribution to journalArticleResearchpeer-review

Electric drives
Dynamic response
Modulation
Dynamical systems

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

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 – Background and Design

Krischan, K., Schichler, U., Deutschmann, B., Reichhartinger, M., Auinger, B., Vollmaier, F., Horn, M. & Renner, H., 26 Apr 2017. 1 p.

Research output: Contribution to conferencePosterResearchpeer-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, p. 42. 1 p.

Research output: Contribution to conferencePosterResearchpeer-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

Investigation of a soft-switching flyback converter with full secondary side based control

Connaughton, A., Talei, A. P., Leong, K., Krischan, K. & Mütze, A., 2017, In : IEEE Transactions on Industry Applications. 53, 6, p. 5587-5601

Research output: Contribution to journalArticleResearchpeer-review

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

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

Tanzer, T., Pregartner, H., Mütze, A. & Krischan, K., 21 May 2017, p. 1-6.

Research output: Contribution to conferencePosterResearchpeer-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

Minimization of a SynRel’s oscillating torque by calculation of the appropriate skew angle

Martinez Garcia Tenorio, J., Krischan, K. & Mütze, A., 2017, In : COMPEL - The international journal for computation and mathematics in electrical and electronic engineering. 36, 3, p. 824-835 12 p.

Research output: Contribution to journalArticleResearchpeer-review

Skew
Ripple
Torque
Angle
Reluctance motors

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

Sleik, R., Glavanovics, M., Einspieler, S., Mütze, A. & Krischan, K., Nov 2017, In : IEEE Transactions on Industry Applications. 53, 6, p. 5698-5708 11 p.

Research output: Contribution to journalArticleResearchpeer-review

Condition monitoring
Networks (circuits)
Reusability
Testing
Data acquisition

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

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, p. 1-8.

Research output: Contribution to conferencePosterResearchpeer-review

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

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. 10 p.

Research output: Contribution to conferencePosterResearchpeer-review

Domestic appliances
Rotors
Iron
Electric motors
Stators

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

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

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

Tanzer, T., Mütze, A. & Krischan, K., 2016, p. 1.

Research output: Contribution to conferencePosterResearch

Magnetostriction
Steel

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

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

Tanzer, T., Pregartner, H., Mütze, A. & Krischan, K., 2016, p. 2230-2236.

Research output: Contribution to conferencePosterResearchpeer-review

Magnetostriction
Steel
Inspection
Fluxes

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

Visionary perspectives for electric energy systems of the future

Bachhiesl, U., Fickert, L., Krischan, K., Mütze, A., Pack, S., Renner, H., Schichler, U. & Stigler, H., 13 Jun 2016, In : TUGraz Research. 2016-1, 15, p. 27-29 3 p.

Research output: Contribution to journalArticleResearch

Open Access
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

Inverter device nonlinearity characterization technique for use in a motor drive system

Babel, A., Mütze, A., Seebacher, R., Krischan, K. & Strangas, E., 2015, In : IEEE Transactions on Industry Applications. 51, 3, p. 2331-2339

Research output: Contribution to journalArticleResearchpeer-review

2014

A simple SiC JFET based AC variable current limiter

Konrad, W., Leong, K. K., Krischan, K. & Mütze, A., 2014, Proc. 16th European Conference on Power Electronics and Applications. ., p. 1-7

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

A simple SiC JFET based AC variable current limiter

Krischan, K., 2014.

Research output: Contribution to conferencePosterResearch

Condition monitoring and failure prognosis of IGBT inverters based on on-line characterization

Babel, A., Muetze, A., Seebacher, R., Krischan, K. & Strangas, E. G., 11 Nov 2014, 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014. Institute of Electrical and Electronics Engineers, p. 3059-3066 8 p. 6953816

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

Insulated gate bipolar transistors (IGBT)
Condition monitoring
Current voltage characteristics
Failure analysis
Classifiers

Inverter device nonlinearity characterization technique for use in a motor drive system

Babel, A., Mütze, A., Seebacher, R., Krischan, K. & Strangas, E., 2014, IEEE Applied Power Electronics Conference and Exposition. ., p. 2767-2774

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

State of the Art and Future Trends of Electric Drives and Power Electronics for Automotive Engineering

Fabian, J., Hirz, M. & Krischan, K., 2014, (Accepted/In press) SAE World Congress. .

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

2013

Development and evaluation of control and power hardware for a line side PWM current source inverter

Krischan, K., Wiltberger, W. & Mütze, A., 2013, Proceedings of the EPE'13 ECCE Europe, 15th European Conference on Power Electronics and Applications. ., p. P.1-P.10

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

2012

A Method for Electrically Isolated Voltage Measurement in PWM Inverters

Krischan, K., 2012.

Research output: Contribution to conferencePosterResearch

Performance Comparison of Voltage- Source Inverters for Use with Distributed Energy Systems

Krischan, K., 2012.

Research output: Contribution to conferencePosterResearch

2011

A method for electrically isolated voltage measurement in PWM inverters

Vorauer, M., Krischan, K. & Mütze, A., 2011, International Conference on Electrical Drives and Power Electronics. ., p. 1-6

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

A Method for Electrically Isolated Voltage Measurement in PWM Inverters

Krischan, K., 2011.

Research output: Contribution to conferencePosterResearch

Performance Comparison of Voltage-Source Inverters for Use with Distributed Energy Systems

Krischan, K., 2011.

Research output: Contribution to conferencePosterResearch

Performance Comparison of Voltage-Source Inverters for Use with Distributed Energy Systems

Jaritz, M., Krischan, K. & Mütze, A., 2011, International Conference on Electrical Drives and Power Electronics. ., p. 1-6

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

Supporting unbalanced grids with induction machine drives by inverters without intermittent energy storage

Krischan, K., Seebacher, R. & Mütze, A., 2011, Proceedings of the 2011-14th European Conference on Power Electronics and Applications (EPE 2011). ., p. 1-10

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