Bio & Education Research Publications Teaching Professional Activities Awards Students

Yasser Abdel-Rady I. Mohamed, PhD, SMIEEE

Assistant Professor

Electrical & Computer Engineering Department

University of Alberta

Edmonton, Alberta, Canada, T6G 2V4

Office: ECERF W2-014

Tel: +1 (780) 492-7287

Department Fax: +1 (780) 492-1811

E-mail: yasser2 AT ualberta DOT ca (without spaces)

Webpage: http://www.ece.ualberta.ca/~yasser2

Short Biography

Yasser Abdel-Rady I. Mohamed was born in Cairo, Egypt, on November 25, 1977. He received the B.Sc. (with honors) and M.Sc. degrees in electrical engineering from Ain Shams University, Cairo, in 2000 and 2004, respectively, and the Ph.D. degree in electrical engineering from the University of Waterloo, Waterloo, ON, Canada, in 2008. From 2002 to 2006 he was a Research Engineer in the Aerospace Industry. From May 2006 to October 2008, he was a research and teaching assistant in the Department of Electrical and Computer Engineering, University of Waterloo. From January 2009 to August 2009, he was a Post-Doctoral-Fellow at the University of Waterloo. Since September 2009, he has been with the Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada, where he is now an Assistant Professor. His research interests are in the areas of dynamics and control of power converters, integration of distributed and renewable generation, modeling, analysis and control of smart grids, electric machines and machine drives. Dr. Mohamed has nine years of research experience, where he has been involved in many funded industrial research projects for Hydro One Networks, Natural Resources Canada, Qualsys Engco., Virelec automation, and ABB Raleigh. Dr. Mohamed is a Senior Member of the Institute of Electric and Electronics Engineers (IEEE); Associate Editor of the IEEE Transactions on Industrial Electronics; and Guest Editor and Coordinator of the IEEE Transactions on Industrial Electronics Special Issue on Distributed Generation and Micro-Grids. He is a member of the General Faculties Council of the University of Alberta. His biography is listed in Marque’s Who is Who in the World.

Education

2006-2008	Ph.D. University of Waterloo Department of Electrical and Computer Engineering, Waterloo, ON, Canada Thesis: “New control algorithms for the distributed generation interface in grid-connected and micro-grid systems"
2003-2004	M.Sc. Ain Shams University Department of Electric Power and Machines Engineering, Cairo, Egypt Thesis: “Fuzzy-logic-based speed control of inverter-fed permanent-magnet synchronous motor"
1995-2000	B.Sc. (with honor) Ain Shams University Department of Electric Power and Machines Engineering, Cairo, Egypt Top

Research

Research Areas

- Dynamics and controls of power converters with applications to distributed and renewable generation, energy storage, converter-fed networks and motor drives

- Modeling, analysis and control of active distribution systems and smart grids

- Grid integration of distributed and renewable energy resources with an emphasis on system dynamics and control

- Optimized electric machines and machine-drives for sustainable and clean energy systems

Recent Research Projects

- Grid reconfiguration in active and smart distribution systems

- Seamless formation and decentralized stabilization of micro-grids

- Mitigation of grid-converter interactions in converter-based distributed generation

- Protection coordination planning with distributed generation

- Interface and grid monitoring for renewable and green power generation inverters

- Load voltage control using renewable and green power generation inverters

- Preserving the power sharing stability in micro-Grids

- Preserving the generation stability and power quality in renewable and green power generation inverters

- Robust high bandwidth current control for voltage-sourced converters

- Direct instantaneous torque and flux control in AC machines

- Maximum torque per-ampere and negative d-axis control problems in interior permanent-magnet synchronous machines

- Torque/Voltage ripple control in direct vector drives

- Robust flux, torque, and position estimation algorithms in AC machine-drives

- Speed/Position control of machine drives with dead-time

- Stability analysis and voltage control of switched reluctance generators

Research Sponsors and Collaborators

	University of Alberta
	Natural Science and Engineering Research Council of Canada (NSERC)
	CanmetEnergy – Natural Resources Canada
	Alberta Innovates
	Hydro One Networks Inc.
	University of Waterloo
	MITACS

Laboratory Facilities

The Distributed Power Grid Laboratory at the University of Alberta offers extensive facilities to validate research results related to distributed generation interfacing and control, micro-grids, converter-dominated grids, machine drives, and planning and operation of active distribution systems. Key facilities include:

- Power Converters: Modular IGBT converters for three- and single-phase operation

- Machine Drives: Induction machines, Permanent-magnet synchronous machines, Brushless DC Machines, DC machines, Industrial-grade sensorless drive, Custom drive, Isolation transformers

- Real-time Control Systems: dSPACE® Real-Time Control System, Texas Instruments® Digital Signal Processors, Altera® FPGA Development Tools

- Software: Several packages for Simulation: Matlab®, PsCAD® PSIM®; Circuit production design and testing (PCB, logic analyzers); Power grid optimization and planning: GAMS®

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Publications

Books and Book-Chapters

[B1] Y. A.-R. I. Mohamed, New Control Algorithms for the Distributed Generation Interface, VDM Verlag, Germany, 2009. ISBN 978-3-639-19692-4

Refereed Journal Publications

[J1] A. Kahrobaeian and Y. A.-R. I. Mohamed, “Interactive distributed generation interface for flexible micro-grid operation in smart distribution systems,” IEEE Transactions on Sustainable Energy, in press.

[J2] A. Radwan and Y. A.-R. I. Mohamed, “Modeling, analysis and stabilization of converter-fed AC micro-grids with high penetration of converter-interfaced loads,” IEEE Transactions on Smart Grid, in press.

[J3] A. Radwan and Y. A.-R. I. Mohamed, “Linear active stabilization of converter-dominated DC micro-grids,” IEEE Transactions on Smart Grid, in press.

[J4] A. Radwan and Y. A.-R. I. Mohamed, “Assessment and mitigation of interaction dynamics in hybrid AC/DC distributed generation networks,” IEEE Transactions on Power Delivery,

[J5] Y. A.-R. I. Mohamed, H. Zeineldin, M. Salama, and R. Seethapathy, "Seamless formation and robust operation of distributed generation micro-grids via robust direct voltage vector control and optimized dynamic power sharing," IEEE Transactions on Power Electronics, in press.

[J6] Y. A.-R. I. Mohamed, M. A.-Rahman, Sethap. R, "Robust line-voltage sensorless control and synchronization of LCL-filtered distributed generation inverters for high power quality grid connection," IEEE Transactions on Power Electronics, in press.

[J7] Y. A.-R. I. Mohamed and E. F. El-Saadany, "A robust natural-frame-based interfacing scheme for grid-connected distributed generation inverters," IEEE Transactions on Energy Conversion, vol. 26, no. 3, pp. 728-736, Sept. 2011.

[J8] Y. A.-R. I. Mohamed, "Mitigation of dynamic, unbalanced and harmonic voltage disturbances using grid-connected inverters with LCL filter" IEEE Transactions on Industrial Electronics, vol. 58, no. 9, pp. 3914-3924, Sept. 2011.

[J9] Y. A.-R. I. Mohamed and A. Radwan, “Hierarchical control system for robust microgrid operation and seamless mode transfer in active distribution systems,” IEEE Transactions on Smart Grid, vol. 2, no. 2, pp. 352 - 362, June 2011.

[J10] Y. A.-R. I. Mohamed, "Mitigation of grid-converter resonance, grid-induced distortion and parametric instabilities in converter-based distributed generation," IEEE Transactions on Power Electronics, Special Issue on Power Electronics In Micro-grids, vol. 26, no. 3, pp. 983-996, March 2011.

[J11] S. M. Ashabani and Y. A.-R. I. Mohamed, "Multi-objective shape optimization of segmented-pole permanent magnet synchronous machines with improved torque characteristics,” IEEE Transactions on Magnetics, vol. 47, no. 4, pp. 795-804, March 2011.

[J12] S. M. Ashabani, Y. A.-R. I. Mohamed, and J. Milimonfared, "Optimum design of tubular permanent magnet motors for thrust characteristics improvement by combined Taguchi-neural network approach," IEEE Transactions on Magnetics, vol. 46, no. 12, pp. 4092-4100, Dec. 2010.

[J13] Y. A.-R. I. Mohamed and E. F. El-Saadany, and M. M. A. Salama, “An adaptive grid-voltage sensorless interfacing scheme for inverter-based distributed generation," IEEE Transactions on Energy Conversion, vol. 24, no. 3, pp. 683-694, Sept. 2009.

[J14] Y. A.-R. I. Mohamed and E. F. El-Saadany, “A control method of grid-connected PWM voltage source inverters to mitigate fast voltage disturbances," IEEE Transactions on Power Systems, vol. 24, no.1, pp. 489-491, Feb. 2009.

[J15] Y. A.-R. I. Mohamed and E. F. El-Saadany, “Adaptive decentralized droop-controller to preserve power-sharing stability of paralleled-inverters in distributed generation micro-grids," IEEE Transactions on Power Electronics, vol. 23, no. 6, pp. 2806-2816, Nov.2008.

[J16] Y. A.-R. I. Mohamed and E. F. El-Saadany, “A control scheme of grid-connected PWM voltage-source inverters for fast load voltage regulation and effective mitigation of unbalanced voltage disturbances," IEEE Transactions on Industrial Electronics, vol. 55, no. 5, pp. 2072- 2084, May 2008.

[J17] Y. A.-R. I. Mohamed and E. F. El-Saadany, “Hybrid variable-structure control with evolutionary optimum-tuning for fast grid-voltage regulation using inverter-based distributed generation," IEEE Transactions on Power Electronics, vol. 23, no. 3, pp.1334-1341, May 2008.

[J18] Y. A.-R. I. Mohamed and E. F. El-Saadany, “Robust high-bandwidth discrete-time predictive current control with predictive internal model - a unified approach for voltage-source PWM converters," IEEE Transactions on Power Electronics, vol. 23, no. 1, pp.126-136, Jan. 2008.

[J19] Y. A.-R. I. Mohamed and E. F. El-Saadany, “Adaptive discrete-time grid-voltage sensorless interfacing scheme for grid-connected DG-inverters based on neural-network identification and deadbeat current regulation," IEEE Transactions on Power Electronics, vol. 23, no. 1, pp. 308-321, Jan. 2008.

[J20] Y. A.-R. I. Mohamed and E. F. El-Saadany, “A current control scheme with an adaptive internal model for torque ripple minimization and robust current regulation in PMSM drive systems,” IEEE Transactions on Energy Conversion, vol. 23, no. 1, pp. 92-100, 2008.

[J21] Y. A.-R. I. Mohamed and E. F. El-Saadany, “An improved deadbeat current controller with a novel adaptive self-tuning load model for a three-phase PWM voltage source inverter," IEEE Transactions on Industrial Electronics, vol. 54, no. 4, pp. 747-759, April 2007.

[J22] Y. A.-R. I. Mohamed, “A novel hybrid-type variable-structure instantaneous torque controller with a robust adaptive torque observer for a high performance direct-drive PMSM," IEEE Transactions on Industrial Electronics, (Special Issue on Variable Speed Drives and Electric Machines, Edited by: B. Fahimi and I. Boldea), vol. 54, no. 5, pp. 2491-2499, Oct. 2007.

[J23] Y. A.-R. I. Mohamed, “Direct instantaneous torque control in direct drive permanent magnet synchronous motors - a new approach," IEEE Transactions on Energy Conversion, vol. 22, no. 4, pp. 829-838, Dec. 2007.

[J24] Y. A.-R. I. Mohamed, “A newly designed instantaneous torque control of direct drive PMSM servo actuator with improved torque estimation and control characteristics," IEEE Transactions on Industrial Electronics, vol. 54, no. 5, pp. 2864-2873, Oct. 2007.

[J25] Y. A.-R. I. Mohamed, “A novel direct instantaneous torque and flux controller with an ADALINE-based motor model for a high performance DD-PMSM," IEEE Transactions on Power Electronics, vol. 22, no. 5, pp. 2042-2049, Sept. 2007.

[J26] Y. A.-R. I. Mohamed, “Design and implementation of a robust current control scheme for a PMSM vector drive with a simple adaptive disturbance observer," IEEE Transactions on Industrial Electronics, vol. 54, no. 2, pp. 1981-1988, Aug. 2007.

[J27] Y. A.-R. I. Mohamed and T. K. Lee, “Adaptive self-tuning MTPA vector controller for IPMSM drive system," IEEE Transactions on Energy Conversion, vol. 21, no. 3, pp. 636-644, Sept. 2006.

[J28] Y. A.-R. I. Mohamed, “Adaptive self-tuning speed control for PMSM drive system with dead time," IEEE Transactions on Energy Conversion, vol. 21, no. 4, pp. 885-892, Dec. 2006.

[J29] Y. A.-R. I. Mohamed, M. M. Abu-Elnaga, and M. A. El-Sayad, “Optimized fuzzy logic-based speed control for ac vector drives," in the Scientific Bulletin of Ain Shams University, Cairo, Egypt. vol. 40, pp. 563-582, March 2005.

[J30] Y. A.-R. I. Mohamed, M. M. Abu-Elnaga, and M. A. El-Sayad, “Robust speed control for an ac servo drive with lag-time compensation," in the Scientific Bulletin of Ain Shams University, Cairo, Egypt. vol. 40, pp. 501-518, March 2005.

[J31] Y. A.-R. I. Mohamed, M. M. Abu-Elnaga, and M. A. El-Sayad, “Enhanced self-tuning speed control for permanent-magnet synchronous motor drive system," in the Scientific Bulletin of Ain Shams University, Cairo, Egypt. vol. 40, pp. 547-591, March 2005.

Refereed Conference Publications

[C1] Y. A.-R. I. Mohamed, and E. F. El-Saadany, “Robust grid-voltage sensorless interfacing scheme for inverter-based DG," In Proc. IEEE Power Engineering Society General Meeting, 2008.

[C2] Y. A.-R. I. Mohamed, and E. F. El-Saadany, “Fast grid voltage regulation using inverter-based distributed generation," In Proc. IEEE Power Electronics Specialists Conference, PESC'08, 2008.

[C3] Y. A.-R. I. Mohamed, and Ehab F. El-Saadany, “Evolutionary optimum tuning algorithm for a hybrid variable-structure voltage controller in grid-connected PWM inverters," In Proc. Annual Conf. of the IEEE Industrial Electronics Society, IECON’08, 2008.

[C4] Yasser A.-R. I. Mohamed, and E. F. El-Saadany, “A novel deadbeat current control scheme with an adaptive self-tuning load model for a three-phase VSI," In Proc. IEEE Power Electronics Specialists Conf., PESC'07, 2007, pp. 36-42.

[C5] Y. A.-R. I. Mohamed, E. F. El-Saadany, and R. El-Shatshat, “Natural adaptive observers-based estimation unit for robust grid-voltage sensorless control characteristics in inverter-based DG units," In Proc. IEEE Power Engineering Society General Meeting, 2007.

[C6] Y. A.-R. I. Mohamed, and E. F. El-Saadany, “A current control scheme with an adaptive internal model for robust current regulation and torque ripple minimization in PMSM vector drive," In. Proc. of IEEE-Int’l Electric Machines and Drives Conf., IEMDC'07, May 2007, pp. 300-305.

Partial List of R&D Technical Reports

[R1] M. El-Khatib, A. Abu-Elaninien, Y. A.-R. I. Mohamed, M. M. A. Salama, P. Haxell and M. Pei “Advanced distribution system restoration" Virelec-OCE, 2010.

[R2] Y. A.-R. I. Mohamed, E. F. El-Saadany, and M. M. A. Salama, “Assessing the impacts of fixed speed wind turbine-based distributed generation on voltage dynamics in distribution feeders," Hydro One Networks - University of Waterloo Contract, 2009.

[R3] Y. A.-R. I. Mohamed, E. F. El-Saadany, and M. M. A. Salama, “Assessing the impacts of distributed generation on the distribution system transformers," Hydro One Networks - University of Waterloo Contract, 2008.

[R4] T. K. Abdel-Galil, A. E. B. Abu-Elanien, E. F. El-Saadany, A. Girgis, Y. A.-R. I. Mohamed, M. M. A. Salama, and H. H. M. Zeineldin, “Protection Coordination Planning with Distributed Generation,” Natural Resources Canada (NRCan), CETC Varennes – Energy Technology and Programs Sector, Jun 2007.

[R5] Y. A.-R. I. Mohamed, E. F. El-Saadany, and M. M. A. Salama, “Circuit breaker modeling and diagnosis,” Final Report, ABB Inc.-University of Waterloo Contract, Nov. 2006.

Selected Technical Talks

- Invited speaker, McGill University, Montreal, QC, Canada, March 2009

- Invited speaker, University of Alberta, Edmonton, AB, Canada, January 2009

- Invited speaker, Simon Fraser University, Burnaby, BC, Canada, November 2008

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Teaching

Current Courses at the University of Alberta

Fall 2011	EE239 – A1: Fundamentals of Electrical Engineering Course website: e-Class at the University of Alberta
Winter 2011	EE238: Continuous-Time Signals and Systems Course website: e-Class at the University of Alberta
Winter 2011	EE239: Fundamentals of Electrical Engineering Course website: e-Class at the University of Alberta
Winter 2011	ECE730-B5: Distributed and Renewable Energy Systems (Graduate-level project course)
Winter 2010	EE238: Continuous-Time Signals and Systems
Winter 2010	ECE730: Distributed and Renewable Energy Systems (Graduate-level project course)

Previous Courses (at the University of Waterloo)

Spring 2009	MTE320: Actuator and Power Electronics MTE120: Circuits
Winter 2009	ME269: Electromechanical Devices and Energy Processing GENE123: Electrical Engineering
Fall 2008	ECE126: Electricity and Magnetism
Spring 2008	ECE100: Fundamentals of Electrical Engineering Top

Professional Activities

Journal and Conference Publication Editorship and Reviews

- Associate Editor, IEEE Transactions on Industrial Electronics

- Guest Editor of IEEE Transaction on Industrial Electronics Special Section on

“Distributed Generation and Micro-grids”

- Reviewer for the IEEE Transactions on Power Electronics

- Reviewer for the IEEE Transactions on Energy Conversion

- Reviewer for the IEEE Transactions on Power Delivery

- Reviewer for the IET- Generation, Transmission, and Distribution

- Reviewer for the IEEE PES Conference Proceedings, 2006, 2007, 2008

- Reviewer for the IEEE-International Electric Machines and Drives Conference,

IEMDC, 2005, 2007

- Reviewer for the IEEE Power Electronics Specialists Conference, PESC, 2007, 2008

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Awards

- Natural Sciences and Engineering Research Council (NSERC) of Canada

Postdoctoral Fellowship, 2008 (declined)

- Selected for the 2009 and 2010 Editions of Marquis Who's Who in the World

- Sandford Fleming Foundation Teaching Assistantship Award, University of Waterloo,

ON, Canada 2008

- Doctoral Student Award, University of Waterloo, ON, Canada, 3 consecutive times,

2006-2008

- University of Waterloo Graduate Scholarship, ON, Canada, 5 consecutive times,

2006-2008

- The Honor Degree for Academic Distinction, Ain Shams University, Cairo, Egypt,
2000

- Best graduation Project in Electrical Engineering over the Egyptian Universities,

2000

- Scholarship for Academic Distinction, Faculty of Engineering, Ain Shams University,

Cairo, Egypt, (5 years) 1995–2000

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Prospective Students

Financial assistance is available for qualified graduate students (M.Sc. and Ph.D. levels) on a competitive basis.

To qualify, you must:

· have a degree from an internationally well-known academic institution;

· have a strong background in power engineering with a very high GPA and be in the top 5% of your class;

· have good programming/simulation skills (MATLAB, PSCAD, C/C++, RTDS, etc), previous experimental work experience is not mandatory but it is desirable;

· meet English language proficiency requirements (e.g. a TOEFL score of 580 (PBT), or 92 (IBT) with a minimum of 20 on each section); and more importantly

· be self-motivated and have strong interest in producing publishable new results in your area of research.

Further information about graduate studies at the Electrical and Computer Engineering (ECE) Department, University of Alberta can be found at:

http://www.ece.engineering.ualberta.ca/Graduate.aspx

http://www.gradstudies.ualberta.ca/prospective/

If you think you meet the above requirements, please email me (in pdf format) your CV, softcopies of B.Sc. and M.Sc. (if applicable) transcripts, list of publications, brief description of research experience, and research statement. In your CV, clearly indicate your immigration status (Canadian, permanent resident or international). Please indicate if you hold, have applied for, or plan to apply for any funding or scholarship (e.g., NSERC, international external funding, etc.). Successful candidates will be invited to apply for graduate studies at the ECE Department, University of Alberta.

Exceptionally well qualified students can also be considered for one of several scholarships offered by the Faculty of Graduate Studies and Research. These awards include:

University of Alberta Master's Scholarship (available to both Canadian students and foreign applicants)

University of Alberta Ph.D. Scholarship (Canadian students)

FS Chia PhD Scholarship (foreign applicants)

Nominations for these awards are made by the Department of Electrical and Computer Engineering. No separate application is necessary.

Exceptionally well qualified students can apply for one of several scholarships offered by federal and provincial agencies. For more information, please check the following links:

NSERC Scholarships: Information for students and fellows

Alberta Innovates Scholarships

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