Research
Ongoing research projects
Completed dissertations
"Schnellschaltender Wechselrichter mit SIC - Halbleiter zur Speisung von Drehstrommaschinen" (2018)
Dr.-Ing. Van Trang PhungDr.-Ing. Henning Zoubek Dr.-Ing. Fernando David Ramirez Figuera
"Predictive Control Scheme of the PMSM with a Modulator of Variable Switching Frequency" (2018)
"Der Z-Umrichter als einstufiger Universalumrichter" (2017)
Dr.-Ing. Othman Abdulhadi Taha"Cuk Convertor Circuit Controller Design and Implementation" (2017)
Dr.-Ing. Alexander Karl Hartmann Dr.-Ing. The Minh Phan"ALE – Active Life Time Extension of Inverters" (2016)
Dr.-Ing. Christian Schumann"Die zweiseitig gespeiste Axialflussmaschine mit eisenlosem Rotor" (2015)
"Drehgeberlose Identifikation der Rotorlage bei elektrisch erregten Synchronmaschinen" (2015)
Dr.-Ing. Paul Marcelo Pozo Palma"Finite Set Model Predictive Control of the PMSM with Sine-Wave Filter" (2015)
Dr.-Ing. Maria del Carmen Perdomo Arvizu
"Time domain identification of the mechanical system of a drive for the purpose of diagnostics" (2014)
Dr.-Ing. Saul Dufoo Ochoa
"Fehlertolerante prädiktive Direct Torque Control Technik für Asynchronmotoren" (2012)
Dr.-Ing. Eva Teresa Serna Calvo
"Diagnostics of rotor asymmetries in inverter fed, variable speed induction machines" (2009)
Dr.-Ing. Sebastian Villwock
"Identifikationsmethoden für die automatisierte Inbetriebnahme und Zustandsüberwachung elektrischer Antriebe" (2007)
Dr.-Ing. Amr Saleh
"A Fault Tolerant Strategy for the Induction Motor Field Oriented Controlled Drives after the Loss of one Inverter Phase" (2007)
Dr.-Ing. Roberto Morales Caporal
"Encoderless predictive direct torque control of the synchronous reluctance machine at low and zero speed" (2007)
Dr.-Ing. Pablo Ignacio Correa Vasquez
"Fault tolerant operation of series connected H-bridge multilevel inverters" (2006)
Dr.-Ing. Martin Schulz
"Ein Beitrag zur Nutzung regenerativer Energie in Kleinstkraftwerken im Inselbetrieb" (2005)
Dr.-Ing. Jürgen Weber
"Prädiktive Direct Torque Control der Synchronmaschine" (2004)
Dr.-Ing. Andreas Kilthau
"Drehgeberlose Regelung der Synchronen Reluktanzmaschine" (2002)
Dr.-Ing. Pukhraj Singh
"Compensation of Harmonic and Reactive Power in Three Phase Power System" (2001)
Dr.-Ing. Henrik Siebel
"Netzseitiger Wechselrichter mit quasiresonanter Topologie und hoher Leistungsdichte" (2001)
Dr.-Ing. Thomas Eutebach
"Ein Beitrag zur Bedämpfung von Torsionsschwingungen in hochdynamischen Industrieantrieben" (2000)
Publications and lectures
2017
Electronics, Intelligent motion, Renewable Energy and Energy Management, Nuremberg, Germany, 2017, pp. 1-8
V.T. Phung and M. Pacas,
"Sensorless harmonic speed control and detection of bearing faults in repetitive mechanical systems," 2017 IEEE 3rd International FutureEnergy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia), Kaohsiung, Taiwan, 2017, pp. 1646-1651
H. Zoubek and M. Pacas,
"Encoderless Indentification of Two-Mass-Systems utilizing an Extended Speed Adaptive Observer Structure," in IEEE Transactions onIndustrial Electronics, vol. 64, no. 1, pp. 595-604, Jan. 2017.
F.Ramirez, M. Pacas and C. Gonzalez
"FPGA-based Sensorless Control of a PMSM at Low-Speed Range," PCIM Europe 2017; International Exhibition and Conference for PowerElectronics, Intelligent motion, Renewable Energy and Energy Management, Nuremberg, Germany, 2017, pp. 1-8
C.Vagas, S. Feuersaenger and M. Pacas,
"Finite Control Set Model Predictive Control of a PMSM Fed by a Multilevel Inverter," PCIM Europe 2017; International Exhibition and Conference for Power Electronics, Intelligent motion, Renewable Energy and Energy Management, Nuremberg, Germany, 2017,pp. 1-8
2016
S. Feuersänger and M. Pacas
"Rotor position identification in synchronous machines by using the excitation machine as a sensor" 2016 IEEE Symposium on Sensorless Control for Electrical Drives (SLED), Nadi, 2016, pp.1-6.
M. Steinbring and M. Pacas
"Direct Power Control for a Grid Connection of a Three Phase Z-Source Inverter", PCIM Europe 2016, International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, Germany, 2016, pp. 1-7.
- V.T. Phung and M. Pacas
"Load torque estimation in repetitive mechanical system by using Fourier interpolation" in PCIM Europe, Nuremberg, Germany, 2016, pp. 240-247.
2. V.T. Phung and M. Pacas
"Detection of bearing faults in repetitive mechanical systems by identification of the load torque" in IPEMC 2016 ECCE Asia, Anhui, China, 2016, pp. 1-8.
2015
Phan T.M., Oikonomou N., Riedel G.J., Pacas M.
"Active thermal protection and lifetime extension in 3L-NPC-Inverter in the low modulation range", Applied Power Electronics Conference and Exposition (APEC), 2015 IEEE, Charlotte - USA.
Phan T.M., H.A. Duy Nguyen and M. Pacas
"Active Lifetime Extension for a 3L-NPC-Inverter with Direct Torque Control" 2015 Intl Aegean Conference on Electrical Machines & Power Electronics (ACEMP), 2015 Intl Conference on Optimization of Electrical and Electronic Equipment (OPTIM) & 2015 Intl Symposium on Advanced Electromechanical Motion Systems (ELECTROMOTION), Side, 2015, pp. 468-475.
Feuersänger, Simon; Pacas, Mario
"Enhanced estimation of the rotor position of MV-synchronous machines in the low speed range", 2015 IEEE Energy Conversion Congress and Exposition (ECCE), Montreal, QC, 2015, pp.4481-4487.
2014
Increasing the Efficiency of a Single Phase Z-Source Inverter by utilizing SiC - MOSFETS, International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management; Proceedings of PCIM Europe 2014, pp.1,7, 20-22 May 2014
Vila, D.; Pozo, M.; Pacas, Mario; Rodriguez-Andina, J.J.
FPGA-based communication module for control of power inverters and drives, 2014 IEEE 15th Workshop on Control and Modeling for Power Electronics (COMPEL), pp.1,6, 22-25 June 2014
Taha, O.A.; Pacas, Mario
Hardware implementation of balance control for three-phase grid connection 5-level Cascaded H-Bridge converter using DSP, 2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE), pp.1366,1371, 1-4 June 2014
Schumann, C.; Müller, T.; Stein, E.; Pacas, Mario
Analytical calculation of the induces EMF in PM-machines with arbitrary arranged surface mounted magnets using the winding function theory, International Conference on Electrical Machines (ICEM) 2014,pp.994,1000, 2-5 Sept. 2014
Hartmann, A.K.; Gudelhofer, J.; Gottkehaskamp,R.; Pacas, Mario
Analytical Modal of an inverter-fed electrically excited synchronous motor considering saturation, International Conference on Electrical Machines (ICEM) 2014, pp.1001,1007, 2-5 Sept. 2014
Pozo-Palma, M.; Pacas, Mario
Predictive control for a PMSM with LC-filter and a virtual multilevel inverter, International Conference on Electrical Machines (ICEM) 2014, pp.877,883, 2-5 Sept. 2014
Müller, T.; Schumann, C.; Stein, E.; Pacas, Mario
Calculating the steady-state torque of PM machines using the cross-correlation of stator and rotor fields, International Conference on Electrical Machines (ICEM), 2014, pp.705,710, 2-5 Sept. 2014
The-Minh Phan; Oikonomou, N.; Riedel, G.J.; Pacas, Mario
PWM for active thermal protection in three level neutral point clamped inverters, 2014 IEEE Energy Conversion Congress and Exposition (ECCE), pp.3710,3716, 14-18 Sept. 2014
Steinbring, Manuel; Pacas, Mario
Resonant circuit for the reduction of the power pulsation in the DC-link of a single phase ZSI, Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE , pp.1747,1753, Oct. 29 2014 - Nov. 1 2014
Schumann, C.; Müller, T.; Stein, E.; Pacas, Mario
Axial-flux-machine with an ironless fractional slot winding, IECON 2014 - 40th Annual Conference of the IEEE on Industrial Electronics Society, pp.424,430, Oct. 29 2014-Nov. 1 2014
Feuersänger, Simon; Pacas, Mario
Initial rotor position detection in synchronous machines using low frequency pulses, IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, pp.675,681, Oct. 29 2014-Nov. 1 2014
2013
Transducerless Acquisition of the Rotor Position for Predictive Torque Controlled PM Synchronous Machines Based on a DSP-FPGA Digital System, IEEE Transactions on Industrial Informatics, vol.9, no.2, pp.799,807, May 2013
Ochoa, Saul Dufoo; Pacas, Mario
Detection of rotor asymmetries in induction motors at standstill, 2013 IEEE International Symposium on Industrial Electronics (ISIE), pp.1,6, 28-31 May 2013
The-Minh, Phan; Riedel, G.; Oikonomou N.; Pacas, Mario
PWM for active thermal protection in three level neutral point clamped inverters, ECCE Asia, 2013 IEEE, pp.906,911, 3-6 June 2013
Perdomo, M.; Pacas, Mario; Eutebach, T.; Immel, J.
Identification of variable mechanical parameters using extended Kalman Filters, 2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED), pp.377,383, 27-30 Aug. 2013
Pozo-Palma, M.; Pacas, Mario
Predictive torque control for an induction machine with a virtual multilevel inverter, IECON 2013 - 39th Annual Conference of the IEEE on Industrial Electronics Society, pp.5848,5853, 10-13 Nov. 2013
Perdomo, M.; Pacas, Matio; Eutebach, T.; Immel, J.
Sensitivity analysis of the identification of variable inertia with an extended Kalman Filter, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, pp.3102,3107, 10-13 Nov. 2013
2012
Initial rotor position identification in medium voltage synchronous machines, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society , pp.1852-1857, 25-28 Oct. 2012
Steinbring, Manuel; Pacas, Mario; Alnajjar, Mohamme
Emulation of a micro-hydro-turbine for stand-alone power plants with Z-Source inverter, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, pp.5291-5296, 25-28 Oct. 2012
Pacas, J. M.; Molina, M. G.; dos Santos Jr., E. C.Design of a Robust and Efficient Power Electronic Interface for the Grid integration of Solar Photovoltaic Generation Systems. International Journal of Hydrogen Energy. ISSN: 0360-3199. In Press, Elsevier Press, Oxford, U.K.,
Feuersänger, Simon; Pacas, Mario
Initial Rotor Position Detection in Electrically Excited Medium Voltage Synchronous Machines. International PCIM Europe Conference May 2012. Nürnberg Germany
Steinbring, Manuel; Pacas, Mario
Modified Control Structure for Single Phase Z- Scource-Inverter and Efficiency Analysis. International PCIM Europe Conference May 2012. Nürnberg Germany
Zoubek, H.; Pacas, Mario
Parameter Sensitivity of Extended Adaptive Observer for the Encoderless Identification of Two-Mass-Systems. International PCIM Europe Conference May 2012. Nürnberg Germany
2011
Bearing Damage Detection in Speed-sensorless Operated Multi-Mass-Systems, International PCIM Europe Conference May 2011. Nürnberg Germany
Feuersänger, S.; Pacas, M.:
Online parameter tracking in PMSM-control schemes with and without encoder, International PCIM Europe Conference May 2011. Nürnberg Germany
Feuersänger, S.; Pacas, M.:
Sensorless control with online parameter adaption for the PMSM, IEEE Industrial Electronics, IECON 2011, 37th Ann. Conference, Nov. 2011, Melbourne, Australia
2010
Predictive direct torque control of an induction machine with unsymmetrical rotor, Industrial Technology (ICIT), 2010 IEEE International Conference, March 2010
Molina, M.G. ; Pacas, M.:
Improved power conditioning system of micro-hydro power plant for distributed generation applications, Industrial Technology (ICIT), 2010 IEEE International Conference, March 2010
Pacas, Mario:
Sensorless motor drives in industrial applications,
International PCIM Europe Conference, May 2010. Nürnberg Germany
Caporal, R.M. ; Pacas, J.M.:
Estimation of the rotor position of a servo drive at zero stator frequency, Power Electronics Congress (CIEP), 2010 12th International, Aug. 2010
Molina, M.G. ; dos Santos, E.C. ; Pacas, M.:
Advanced power conditioning system for grid integration of direct-driven PMSG wind turbines, Energy Conversion Congress and Exposition (ECCE), 2010 IEEE, Sept. 2010
Zoubek, H. ; Pacas, M.:
A method for speed-sensorless identification of two-mass-systems, Energy Conversion Congress and Exposition (ECCE), 2010 IEEE, Sept. 2010
dos Santos, E.C. ; Pacas, M. ; Molina, M.G.:
Two-phase motor drive systems with Z-source inverter and hybrid PWM, Energy Conversion Congress and Exposition (ECCE), 2010 IEEE, Sept. 2010
Molina, M.G. ; dos Santos, E.C. ; Pacas, M.:
Improved power conditioning system for grid integration of photovoltaic solar energy conversion systems, Transmission and Distribution Conference and Exposition: Latin America (T&D-LA), 2010 IEEE/PES, Nov. 2010
2009
Sebastian Villwock, Mario Pacas:
Time Domain Identification Method for Detecting Mechanical Backlash in Electrical Drives, IEEE Transactions on Industrial Electronics, Vol. 56, No. 2, Feb. 2009Serna, E.; Pacas, M.:
Detection of rotor asymmetries of induction machines in an encoderless control scheme, Industrial Electronics, 2009. ISIE 2009. IEEE International Symposium on 5-8 July 2009Pacas, Mario:
Sensors for drive systems, Industrial Electronics, 2009. ISIE 2009. IEEE International Symposium on 5-8 July 2009Pacas, M.; Villwock, S.; Dietrich, R.:
Bearing damage detection in permanent magnet synchronous machines, Energy Conversion Congress and Exposition, 2009. ECCE. IEEE 20-24 Sept. 2009Villanueva, E.; Correa, P.; Rodriguez, J.; Pacas, M.:
Control of a Single-Phase Cascaded H-Bridge Multilevel Inverter for Grid-Connected Photovoltaic Systems, Industrial Electronics, IEEE Transactions on Volume 56, Nov. 20092008
Application of the Welch-Method for the Identification of Two- and Three-Mass-Systems, IEEE Transactions on Industrial Electronics, Vol. 55, No. 1, Jan. 2008
S. Brovanov, M. Pacas:
Space Vector PWM Technique for Three-Level Neutral Point Clamped Converters Taking into Account DC-Voltage Unbalance, THE IEEE REGION 8 SIBIRCON 2008, International Conference on "Computational Technologies in Electrical and Electronics Engineering", Novosibirsk Scientific Centre, Novosibirsk, Russia, July 21–25, 2008
S. Villwock, A. Baumüller, M. Pacas, F-R. Götz, B. Liu, V. Barinberg:
Influence of the Power Density Spectrum of the Excitation Signal on the Identification of Drives, IEEE Industrial Electronics, IECON 2008, 34th Ann. Conference on November 2008, Orlando, Florida USA
E. Serna, M. Pacas:
Diagnosis of Rotor Asymmetries in Induction Machines with Different Field Oriented Schemes, IEEE Industrial Electronics, IECON 2008, 34th Ann. Conference on November 2008, Orlando, Florida USA
Roberto Morales-Caporal, Mario Pacas:
Impact of the Magnetic Cross-Saturation in a Sensorless Direct Torque Controlled Synchronous Reluctance Machine Based on Test Voltage Signal Injections, IEEE Industrial Electronics, IECON 2008, 34th Ann. Conference on November 2008, Orlando, Florida USA
Henning Zoubek, Sebastian Villwock, Mario Pacas:
Frequency Response Analysis for Rolling Bearing Damage Diagnosis, IEEE Transactions on Industrial Electronics, Vol. 55, No.12, Dec. 2008
S. Villwock, M. Pacas, F-R. Götz, B. Liu, V. Barinberg:
(Charakterisierung eines mechanischen Verbands im Frequenzbereich, VDE/VDI-Fachtagung – Elektrisch-mechanische Antriebssysteme, 23.-24.Sept. 2008, Böblingen, Deutschland
S. Villwock, M. Pacas:
Development of an Expert System for Identification, Commissioning and Monitoring of Drives, 13th international EPE-PEMC-Conference, 01.-03. Sept. 2008, Poznan, Polen
2007
Piotr Szczupak, Mario Pacas:
Automatic Identification and Sensorless Operation of an AC-Drive Equipped with an Output LC Filter . In: The Korean Institue of Power Electronics (Veranst.), Korea-Germany Joint Symposium on Power Electronics (Korea-Germany Joint Symposium on Power Electronics POSTECH International Center Pohang, Korea 18 - 21. Oktober 2007), 2007, S. 18 - 24.
Sebastian Villwock, Henning Zoubek, Mario Pacas, Universität Siegen:
Automated Diagnosis of Rolling Bearing Faults in Electrical Drives. ICPE 2007, Int. Conf. on Power Electronics, 22. - 26. Oktober 2007, Daegu, Korea
Piotr Szczupak, Mario Pacas, Universität Siegen:
Automatic Parametric Model Identification Method for AC-Drives with LC-Filter. The 6th IEEE International Symposium on Diagnosis for Electrical Machines Power Electronics and Drives (SDEMPED); Novotel Centrum Hotel, 6. - 8. September 2007, Cracow, Poland
Sebastian Villwock, Henning Zoubek, Mario Pacas, Universität Siegen:
Rolling Bearing Condition Monitoring Based on Frequency Response Analysis. The 6th IEEE International Symposium on Diagnosis for Electrical Machines Power Electronics and Drives (SDEMPED); Novotel Centrum Hotel, 6. - 8. September 2007, Cracow, Poland
P. Correa, M. Pacas and J. Rodríguez:
Fault-tolerant operation of multicell-inverters with a space phasor modulator, European Transaction on Electrical Power (ETEP), Euro. Trans. Electr. Power 2008; 18:532–545, Published online 20 August 2007 in Wiley InterScience
E. Serna, M. Pacas, Universität Siegen:
Limitations on Detecting Rotor Asymmetries from the Measured Currents in Closed Loop Operation. Proc. IEEE International Symposium on Industrial Electronics (ISIE 2007), Vigo, Spain, 2007
R. Morales-Caporal, M. Pacas, Universität Siegen:
Predictive Direct Torque Control for Synchronous Reluctance Machines at Very Low and Zero Speed without Mechanical Sensor of the Rotor Position. Proc. IEEE International Symposium on Industrial Electronics (ISIE 2007), Vigo, Spain, 2007
A. Saleh, A. Shaltout, University of Cairo; M. Pacas, Universität Siegen:
Fault Tolerant Field Oriented Control of the Induction Motor for Loss of One Inverter Phase with Re-Starting Capability. Proc. IEEE International Symposium on Industrial Electronics (ISIE 2007), Vigo, Spain, 2007
R. Morales-Caporal, M. Pacas, Universität Siegen; J. J. Rodríguez-Rivas:
Predictive Direct Torque Control for a Synchronous Reluctance Machine with Predetermined Stator Flux Compensation Down to Zero Speed, in Proc. IEEE International Electric Machines and Drive Conference (IEMDC’ 07), Antalya, Turkey, vol. 1, 2007, p. 59-64
Sebastian Villwock, Mario Pacas, Universität Siegen:
Detection of Rolling Bearing Faults by Frequency Response Analysis
28th International PCIM Conference for Power Electronics, Intelligent Motion and Power Quality, 22. - 24. May 2007, Nuremberg, Germany.
Pablo Correa, Mario Pacas, José Rodriguez:
Predictive Torque Control for Inverter-Fed Induction Machines. IEEE Trans. on Industrial Electronics, Vol. 54, No. 2, April 2007, p. 1073-1079
Roberto Morales-Caporal, Mario Pacas:
A Predictive Torque Control for the Synchronous Reluctance Machine Taking Into Account the Magnetic Cross Saturation. IEEE Trans. on Industrial Electronics, Vol. 54, No. 2, April 2007, p. 1161-1167
Mario Pacas, University Siegen, Germany, Pablo Correa, UTFSM, Chile, Amr Saleh, University of Cairo, Egypt: Fault Tolerant Schemes in the Control of Electrical Drives. PCIM China 2007 Conference, 21 – 23. March, 2007, Shanghai, China
2006
Piotr Szczupak, Mario Pacas:
Automatic Identification of a PMSM Drive Equipped with an Output LC-Filter. IEEE Industrial Electronics, IECON 2006, 32nd Ann. Conference on November 2006, p. 1143-1148
Amr Saleh, Mario Pacas, Adel Shaltout:
Fault Tolerant Field Oriented Control of the Induction Motor for Loss of One Inverter Phase. IEEE Industrial Electronics, IECON 2006, 32nd Ann. Conference on November 2006, p. 817-822
Eva Serna, Mario Pacas:
Detection of Rotor Faults in Field Oriented Controlled Induction Machines. Industry Application Conference 2006, 41st IAS Annual Meeting, Conf. Rec. of the 2006 IEEE, Vol. 5, 8. – 12. Oktober 2006, p. 2326-2332
P. Correa, M. Pacas, J. Rodriguez:
Modulation Strategies for Fault-Tolerant Operation of H-Bridge Multilevel Inverters, ISIE 2006, International Symposium on Industrial Electronics, 9. – 13. July 2006, Ecole de Technologie Supérieure (ÉTS), Montreál, Canada.
Sebastian Villwock, Mario Pacas: Deterministic Method fort he Identification of Backlash in the Time Domain, ISIE 2006, International Symposium on Industrial Electronics, 9. – 13. July 2006, Ecole de Technologie Supérieure (ÉTS), Montreál, Canada.
Sebastian Villwock, Mario Pacas: Flexible Mechanical Setup with Tunable Backlash and Friction, 27th International PCIM Conference for Power Electronics, Intelligent Motion and Power Quality, 30 May – 01 June 2006, Nuremberg, Germany.
Mario Pacas, Pablo Correa, José Rodriguez: Fault-Tolerant Operation of Multicell-Inverters with a Space Phasor Modulator, 27th International PCIM Conference for Power Electronics, Intelligent Motion and Power Quality, 30. May – 01. June 2006, Nuremberg, Germany.
Mario Pacas, Sebastian Villwock, Silke Allebrod: Kommunikation zwischen Antriebsregelgerät und PC-Leistungsfähige USB-Interface-Platine mit wenigen Bausteinen, Elektronik-Fachzeitschrift für industrielle Anwender und Entwickler, Heft Nr. 6, März 2006.
2005
Mario Pacas, Martin Schulz: Ferroresonant Transformer, PWM- and Matrix-Converter in Rural Micropower Generation, PELINCEC 05, Warsaw, Poland 2005.
Mario Pacas and Roberto Morales-Caporal: Predictive Torque and Flux Control for the Synchronous Reluctance Machine, PELINCEC 05, Warsaw, Poland 2005.
M. Pacas, R. Morales: A Predictive Torque Control for the Synchronous Reluctance Machine Taking into Account the Magnetic Cross Saturation, IECON 2005, The 31th Annual Conference of the IEEE Industrial Electronics Society, November 2005, Raleigh, USA.
J. M. Pacas, S. Villwock, Th. Eutebach: Application of the Welch-Method for the Automatic Parameter Identification of Electrical Drives, IECON 2005, The 31th Annual Conference of the IEEE Industrial Electronics Society, November 2005, Raleigh, USA.
Mario Pacas and Jürgen Weber: Predictive Direct Torque Control for the PM Synchronous Machine, IEEE Transactions on Industrial Electronics, Vol. 52, No. 5, October 2005, p. 1350-1356.
Mario Pacas, Sebastian Villwock, Thomas Eutebach: Idendification of the Mechanical Resonances of Electrical Drives for Automatic Commissioning, Journal of Power Electronics, Vol. 5, No. 3, July 2005, ISSN 1598-2092.
Lucian Mihet-Popa, Mario Pacas: Failure Detection in Converter Fed Induction Machines under Different Operation Conditions, International Electric Machine and Drives Conference (IEMDC), May 15 - 18 2005, San Antonio, Texas, USA.
Pablo Correa, Mario Pacas, José Rodriguez: A Predictive Torque Control for Inverter-fed Induction Machines, PESC 05, Power Electronics Specialists Conference, June 12 - 16, 2005, Mar Hotel, Recife, Brazil.
J. M. Pacas, S. Villwock, Th. Eutebach: System Identification - A Contribution to the Automatic Commissioning of Electrical Drives, 26th International PCIM Conference for Power Electronics, Intelligent Motion and Power Quality, 7 - 9 June, 2005, Nuremberg, Germany.
L. Mihet-Popa, J. M. Pacas: Active Stall Constant Speed Wind Turbine during Transient Grid Fault Events and Sudden Changes in Wind Speed, 26th International PCIM Conference for Power Electronics, Intelligent Motion and Power Quality, 7 - 9 June, 2005, Nuremberg, Germany.
2004
J. M. Pacas, University of Siegen, R. M. Kennel, Wuppertal University: Tutorial Servo Drives, IEEE IAS Conference and Annual Meeting, October 3-7, 2004, Seattle, USA,.
Mario Pacas, Sebastian Villwock, Thomas Eutebach: Identification of the Mechanical System of a Drive in the Frequency Domain, IECON 2004, The 30th Annual Conference of the IEEE Industrial Electronics Society, November 2 - 6, 2004, Paradise Hotel, Busan, Korea.
J. M. Pacas, S. Villwock, University of Siegen, Th. Eutebach, Lenze, Germany: Automatic Procedure for the Identification of the Mechanical Resonances of a Drive, ICPE 2004, International Conference on Power Electronics, October 2004, Paradise Hotel, Busan, Korea.
J. M. Pacas: Ballast Design with Integrated Circuits, German-Korea Symposium 2004 on Power Electronics and Electrical Drives, 27. - 29. June 2004, Aachen, Germany.
J. M. Pacas, S. Villwock, University of Siegen, Th. Eutebach, Lenze, Germany: Parameter Identification of a Two-Mass-System in the Frequency Domain, PCIM Europe 2004, International Conference & Exhibition Power Electronics Intelligent Motion Power Quality, Nürnberg, May, 2004.
J. M. Pacas: Automatic parameter estimation in high dynamic drives, 15 Seminario Interattivo Azionamenti Elettrici, Evoluzione Tecnologica e Problematiche Emergenti, Bressanone, Italy 2004.
2003
J. M. Pacas, M. Schulz: Assessment of Wind- and Waterdriven Micropowerplants. IECON'03 - 29 Annual Conference of the IEEE Industrial Electronics Society, Roanoke, Virginia, USA, November, 2003.
J. M. Pacas, J. Weber: Predictive Direct Torque Control for the PM- Synchronous Machine. IECON'03 - 29 Annual Conference of the IEEE Industrial Electronics Society, Roanoke, Virginia, USA, November, 2003.
J. M. Pacas, M. Schulz: Matrix Converter and conventional schemes in rural power generation systems. 10th European Conference on Power Electronics and Applications (EPE 2001), Toulouse, France, Sept. 2003.
E. Serna-Calvo, J. M. Pacas, L. Serrano-Iribarnegaray: Experimental Measurement of the Dynamic Starting Torque in an Asynchronous Motor, including the contribution of Field Harmonics. Influence of Initial Rotor Position and Initial Phase of Supply Voltage. Jornadas Luso Espanholas de Engenharia Electrotécnica - JLEEE, Vilamoura, Portugal, July 2003.
M. Gieselmann, J. M. Pacas: Function Oriented Engineering of Mechatronic Units, 14° Seminario Interattivo Azionamenti Elettrici, Evoluzione Tecnologica e Problematiche Emergenti, Bressanone, Italy 2003.
J. M. Pacas: LCC approach in electrical drives, 14° Seminario Interattivo Azionamenti Elettrici, Evoluzione Tecnologica e Problematiche Emergenti, Bressanone, Italy 2003.
2002
J L Vázquez Mora, Andras Lelkes, J Mario Pacas: External Rotor PM Motor Fed by a Load Commutated Inverter for Fan Applications, 28th Annual Conference of the IEEE Industrial Electronics Society (IECON '02), Sevilla, Spain, November 2002.
Kilthau, J. M. Pacas: Appropriate Models for the Control of the Synchronous Reluctance Machine, IEEE Industry Applications Society (IAS), Pittsburgh, USA, October 2002.
H. Siebel, J. M. Pacas: Active front end inverter with quasi - resonance, Journal of Power Electronics, Korean Institut of Power Electronics, Korea, 2002.
Kilthau, J. M. Pacas: Sensorless Control of the Synchronous Reluctance Machine, Journal of Power Electronics, Korean Institut of Power Electronics, Korea, Vol. 2, No. 2, April 2002.
Lindemann, J. M. Pacas: AC Controllers with Reverse Blocking IGBTs for Reduction of Mains Reactive Power, International Conference & Exhibition Power Electronics Intelligent Motion Power Quality (PCIM 2002), Nürnberg, Mai 2002.
J. M. Pacas, F. Parsailiti, R. Petrella, M. Tursini: Flexible High-Performance Motion Control System for Multi-Axis Applications, International Conference & Exhibition Power Electronics Intelligent Motion Power Quality (PCIM 2002), Nürnberg, Mai 2002.
J. M. Pacas: Utilization of LINUX-RT as OS for control drives, 13° Seminario Interattivo Azionamenti Elettrici, Evoluzione Tecnologica e Problematiche Emergenti, Brixen, Italy, March 2002.
2001
H. Siebel, J. M. Pacas: Active front end inverter with quasi - resonance, 2001 International Conference on Power Electronics, Seoul, Korea, October 2001.
Kilthau, J. M. Pacas: Sensorless Control of the Synchronous Reluctance Machine, Korea-Germany Joint Symposium in Power Electronics, Seoul, Korea, October 2001.
J. M. Pacas: Tutorial "Drives in Automation" during the International Conference on Power Electronics, Seoul, Korea, October 2001.
Kilthau, J. M. Pacas: Parameter-Measurement and Control of the Synchronous Relectance Machine including Cross Saturation, 2001 IEEE IAS Conference and Annual Meeting, Chicago, IL, USA, September/October 2001.
Kilthau, J.M. Pacas: Measurement of the Parameters of the Synchronous Reluctance Machine including Cross Saturation, 9th European Conference on Power Electronics and Applications (EPE 2001), Graz, Austria, Aug. 2001.
Pukhraj Singh, J. M. Pacas, C.M. Bhatia: An Improved Unified Power Quality Conditioner, 9th European Conference on Power Electronics and Applications
(EPE 2001), Graz, Austria, Aug. 2001.
Kilthau, J. M. Pacas: Control of Synchronous Reluctance Machines, 43. International Conference Power Electronics, Intelligent Motion, Power Quality (PCIM 2001), Nürnberg, Juni 2001.
Pukhraj Singh, J.M. Pacas, Rahul Varma: Control Scheme for Selective Compensation of Reactive Power under Distorted and Unbalanced Source, 43. International Conference Power Electronics, Intelligent Motion, Power Quality (PCIM 2001), Nürnberg, Juni 2001.
J. M. Pacas: Actual Trends in Mechatronics and Drives, 12° Seminario Interattivo Azionamenti Elettrici, Evoluzione Tecnologica e Problematiche Emergenti, Brixen, Italy, March 2001.
2000
J. M. Pacas, A. John, Th. Eutebach: Automatic Identification and Damping of Torsional Vibrations in High-Dynamic-Drives, IEEE International Symposium on Industrial Electronics (ISIE '00), Cholula, Puebla., Mèxico, Dec. 2000.
J. M. Pacas: Drives in the Automation, Tutorial of the IEEE International Symposium on Industrial Electronics (ISIE '00), Cholula, Puebla., Mèxico, Dec. 2000.
J. M. Pacas: Servo-Antriebstechnik, Tutorial, SPS/IPC/DRIVES/Elektrische Automatisierung - Systeme und Komponenten, Nürnberg, Nov. 2000.
H. Siebel, J. M. Pacas: Netzseitiger Wechselrichter mit Quasi-Resonanz, SPS/IPC/DRIVES/Elektrische Automatisierung - Systeme und Komponenten, Nürnberg, Nov. 2000.
P. Singh, J. M. Pacas, C.M. Bhatia: A novel 3-phase hybrid harmonic and reactive power compensator, 9th International Power Electronics and Motion Control Conference (EPE-PEMC '00), Kosice, Slovak Republic, Sept. 2000.
H. Siebel., J. M. Pacas: A new active front end inverter with regenerative capability and quasi-resonant operation, 9th International Power Electronics and Motion Control Conference (EPE-PEMC '00), Kosice, Slovak Republic, Sept. 2000.
J. M. Pacas: Drives 2000 end of the roadmap? - From the state-of-the art to future trends, 41. International Conference Power Conversion / Intelligent Motion / Power Quality (PCIM '00), Nürnberg, Juni 2000.
P. Singh, J. M. Pacas: A new control scheme for harmonic and reactive power compensation in three phase power systems, 41. International Conference Power Conversion / Intelligent Motion / Power Quality (PCIM '00), Nürnberg, Juni 2000.
H. Siebel, J. M. Pacas: Soft switching three-phase rectifier with high efficiency and a non-linear voltage controller, 41. International Conference Power Conversion / Intelligent Motion / Power Quality (PCIM '00), Nürnberg, Juni 2000.
J. M. Pacas, H. Siebel, P. Singh: New concepts for active filters and front-end inverters, 11° Seminario Interattivo Azionamenti Elettrici,Evoluzione Tecnologica e Problematiche Emergenti, Brixen, Italy, March 2000.
1999
J. M. Pacas, H. Siebel: Three-phase rectifier with quasi-resonant DC-link and a high power factor, EPE' 99, Lausanne, Switzerland.
T. Eutebach, J. M. Pacas: Damping of torsional vibrations on high-dynamic- drives, EPE' 99, Lausanne, Switzerland.
1998
John, J. M. Pacas: Intelligent Motion: The new Challenge for electrical Drives, EPE'97 S. 3.918 - 3.921, Trondheim, Norway.
J. M. Pacas, A. John: Customized Inverter for special high dynamic Applications, Korea-Germany Advanced Power Electronics Symposium'98, Seite 96-103, Kepri,Taejon,Korea.
J. M. Pacas, A. John: Power Electronics for high dynamic Drives Proceedings ICPE'98, Seite 113-118, Seoul, Korea.
J. M. Pacas: Efficient electrical Drives (Effiziente Elektrische Antriebe), Tutorial of the VDI-Bildungswerk, 19.5.1998, Düsseldorf, Germany, 6-7.11.1997, Siegen, Germany.
J. M. Pacas: Mechatronics: The New Challenge for the Electrical Drives (Mechatronik die neue Herausforderung für die Antriebstechnik), Lecture at the University of Paderborn, Germany, 9.6.1998.
J. M. Pacas: Energy Saving by Using Electrical Drives (Energieeinsparung bei der Verwendung elektrischer Antriebe) Lecture at the Chamber of Commerce, Duisburg, Germany, 3.6.1998.
J. M. Pacas: Mechatronic trends on the market of high performance drives, Lecture during the Expert Days 1998, ABB Industry Oy, Helsinki, Finland, 5.5.1998.
J. M. Pacas: Energy Efficient Design and Planning of Electrical Drives (Energieoptimale Auslegung und Projektierung elektrischer Antriebe), J.M. Pacas, IMPULS 11, Energieagentur NRW, Wuppertal Germany, 1998.
J. M. Pacas: Efficient Electrical Drives with RAVEL NRW (Effizente Elektrische Antriebe mit RAVEL NRW), G. Schröder, J.M. Pacas, Book published by The Energieagentur NRW, Wuppertal Germany 1998.
1997
Intelligent Motion: The New Challenge for Electrical Drives, A. John, J. M. Pacas, Proceedings of the European Conference in Power Electronics and Applications EPE, Trondheim, Norway, 1997.
Taking over the Leading Edge on the Market: Cooperation between System Engineers and Component Suppliers from the Beginning of new Developments of Technologies and Products on(Markt-/Wettwebervorsprung erreichen: Kooperation mit System- und Komponentenanbietern bereits bei der Entwicklung von neuen Technologien und Produkten). Dialog Forum on Industrial Automation 5./6.6. 1997, Zurich Switzerland.
1995
J. M. Pacas, K. Peters: Decentralised Control for Drives in Machines with Precision Processes and Synchronised Motion, (Dezentrale Antriebsregelung für präzise Bearbeitungsprozesse und synchronisierte Bewegungen im Maschinenbau) ETG-Tage'95, ETG Fachberichte, VDE Verlag, Berlin 1995.
J. M. Pacas: VECON Based Control Electronics for Servo Drives, 6° Seminario Interativo su Azionamenti Electrici a Microprocessore, Bressanone, March 1995.
J. M. Pacas: Electrical Drives: With new Technologies and Innovative Developments in the Year 2000, (Elektrische Antriebe: Mit zukunftsorientierten Technologien und Innovative Entwicklungen in das Jahr 2000) Lecture, VDE Heilbronn, 28.3.1996 and VDE Erlangen, 09.11. 1995.
bis 1994
J.M. Pacas: Digital Drives and Open Communication Systems (Digitale Antriebe und offene Kommunikationssysteme), Lecture at the Federal Institute of Technology, Zurich Switzerland 19.1.94.
J. M. Pacas: PROFIBUS in the Praxis (PROFIBUS in der Praxis), Lecture at the INELTEC-Fair, Basel, Switzerland 1993.
State of the Art of Variable Speed Drives (Stand der Technik bei drehzahlvariablen Antrieben), Lecture at the VDE (Bezirk Kurpfalz e.V.) in Mannheim, Germany 12.1.1992.
J. M. Pacas, K. Peters, L. Werle: New Compact Servodrives with Asynchronous Motors (Neue Kompakte Servoantriebe mit Asynchronmotoren), Antriebstechnik, 2/1993, Vereinigte Fachverlage, Mainz, Germany.
Intelligent Drives with SERCOS interface, PCIM Power Conversion and Intelligent Motion Europe, September/October 1993.
New Generation of Intelligent Drives with SERCOS interface, Proceedings of Intelligent Motion '95 Conference, Nürnberg Germany, April 1992.
J. M. Pacas: New Generation of Drives for Machine Tools with SERCOS interface (Neue Generation von Werkzeugmaschinenantrieben mit SERCOS interface), Lecture at the Elektrotechnisches Institut, University of Karlsruhe, 25.11.1991.
Novel Generation of Drives for Numerically Controlled Machines, Proceedings of the European Conference in Power Electronics and Applications EPE Florence, Italy, 1991.
J. M. Pacas: Special Requirements for the Communication in High Dynamic Drives (Spezielle Anforderungen an das Kommunikationssystem bei hochdynamischen Antrieben. Technische Akademie Heilbronn e.V., 19/20.2.1991.
J. M. Pacas: Main Spindle Drives (Hauptspindelantriebe), Lectures in Technische Akademie Esslingen, 1992,1993,1994,1995.
J. M. Pacas: Serial Interface between the Numerical Control of Machine Tools and the Drives (Serielle Schnittstelle zwischen numerischen Steuerungen und Antrieben an Werkzeugmaschinen). Lecture in Haus der Technik, Essen, 8.11.1989.
J. M. Pacas: The AC-Machine with Series Connection of Stator and Rotor as Fieldorientated Cycloconverter Drive (Drehstrommaschine mit Serienschaltung von Stator und Rotor als feldorientiert geregelter Direktumrichterantrieb), etz Archiv,Vol.9, 1987,Bd.9, H.10.
J. M. Pacas: The Fieldorientated Control of the Series Connected Doubly Fed Induction Machine, Proceedings of the European Conference in Power Electronics and Applications, EPE, Brussels, 1985.
J. M. Pacas: The Fieldorientated Series Connected Doubly Fed Asynchronous Machine (Der feldorientierte Betrieb der doppeltgespeisten Drehstrommaschine in Serienschaltung). Institute for Automation and Industrial Electronics, Swiss Federal Institute of Technology Zurich, January 25, 1984.
Bellomi, H. Späth, J. M. Pacas: Digital Simulation of Electrical Drives (Digitale Simulation elektrischer Antriebe), Elektrotechnik und Maschinenbau E&M (103), 1986.
J. M. Pacas: Field oriented control of the series connected doubly fed asynchronous machine, International Conference on electrical Machines, Lausanne, Switzerland, September 1984.
Bellomi, H. Späth, J. M. Pacas: Stability Analysis of the Doubly Fed Asynchronous Machine by Means of a Linearised Model (Untersuchung der Stabilität der doppeltgespeisten Drehstrommaschine mit Hilfe eines linearisierten Modells). Archiv für Elektrotechnik 67/1984.
H. Späth, J. M. Pacas: Novel Control Scheme for the Series Connected Doubly Fed Asynchronous Machine (Neues Steuerverfahren für die doppeltgespeiste Drehstrommaschine in Serienschaltung), etz Archiv Vol 5, 1983.
H. Späth, J. M. Pacas: Torque Harmonics of the Asynchronous Machine Fed by a CSI with a Pulsating DC-Link Current (Berechnung der Drehmomentharmonischen einer über Stromzwischenkreisumrichter mit nichtglattem Zwischenkreisstrom gespeisten Drehstromasynchronmaschine), Archiv für Elektrotechnik, 65/1982.