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Design and Hardware Implementation of Laboratory-scale Hybrid DC Power System for Educational Purposes

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2015 ASEE Annual Conference & Exposition


Seattle, Washington

Publication Date

June 14, 2015

Start Date

June 14, 2015

End Date

June 17, 2015





Conference Session

ECCD Innovative Teaching Applications

Tagged Division

Energy Conversion and Conservation

Tagged Topic


Page Count


Page Numbers

26.452.1 - 26.452.18



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Paper Authors


Mustafa Farhadi Florida International University

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Mustafa Farhadi received the BS degree in EE from Mazandaran University, Mazandaran, Iran, in 2007 and the MS degree in EE from Iran University of Science & Technology, Tehran, Iran in 20011. He is currently a graduate teaching and research assistant working toward the Ph.D. degree at the Department of Electrical and Computer Engineering Department, Florida International University, Miami, Florida USA. His current research interests include design, control and protection of dc power system, simulation models, power electronics and energy management in distribution systems with hybrid energy storage.

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Osama A. Mohammed Florida International University

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Dr. Mohammed is a Professor of Electrical Engineering and is the Director of the Energy Systems Research Laboratory at Florida International University, Miami, Florida. He received his Master and Doctoral degrees in Electrical Engineering from Virginia Tech in 1981 and 1983, respectively. He has performed research on various topics in power and energy systems in addition to computational electromagnetics and design optimization in electric machines, electric drive systems and other low frequency environments. He performed multiple research projects for several Federal agencies since 1990’s dealing with; power system analysis, physics based modeling, electromagnetic signature, sensorless control, electric machinery, high frequency switching, electromagnetic Interference and ship power systems modeling and analysis. Professor Mohammed has currently active research programs in a number of these areas funded by DoD, the US Department of Energy and several industries.
Professor Mohammed is a world renowned leader in electrical energy systems and computational electromagnetics. He has published more than 400 articles in refereed journals and other IEEE refereed International conference records. He also authored a book and several book chapters. Professor Mohammed is an elected Fellow of IEEE and is an elected Fellow of the Applied Computational Electromagnetic Society. Professor Mohammed is the recipient of the prestigious IEEE Power and Energy Society Cyril Veinott electromechanical energy conversion award and the 2012 outstanding research award from Florida International University.
Professor Mohammed has lectured extensively with invited and plenary talks at major research and industrial organizations worldwide. He serves as editor of several IEEE Transactions including the IEEE Transactions on Energy Conversion, the IEEE Transactions on Smart Grid, IEEE Transactions on Magnetics, COMPEL and the IEEE Power Engineering Letters. Professor Mohammed served as the International Steering Committee Chair for the IEEE International Electric Machines and Drives Conference (IEMDC) and the IEEE Biannual Conference on Electromagnetic Field Computation (CEFC). Professor Mohammed was the General Chair of the 2009 IEEE IEMDC conference held in Miami Florida, May 3-6 2009 and was the Editorial Board Chairman for the IEEE CEFC2010 held in Chicago, IL USA, May 9-12, 2010. Professor Mohammed was also the general chair of the IEEE CEFC 2006 held in Miami, Florida, April 30 – May 3, 2006. He was also general chair of the 19th annual Conference of the Applied Computational Electromagnetic Society ACES-2006 held in Miami, Florida March 14-17, 2006. He was the General Chairman of the 1993 COMPUMAG International Conference and was also the General Chairman of the 1996 IEEE International Conference on Intelligent Systems Applications to Power Systems (ISAP'96) Dr. Mohammed has chaired the Electric Machinery Committee for IEEE PES was the Vice Chair and Technical Committee Program Chair for the IEEE PES Electric Machinery Committee for a number of years. He was a member of the IEEE/Power Engineering Society Governing Board (1992-1996). He also serves as chairman, officer or as a

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Design and Hardware Implementation of Laboratory-Scale Hybrid DC power System for Educational PurposeDC microgrid is an effective architecture to achieve a more reliable power with higher efficiencythrough the implementation of the power electronic converters and the storage energy devices.Recently, DC microgrid and hybrid DC power systems gained a lot of popularity and interest.High penetration of stationary renewable energy sources yielding DC output and increasednumber of electronic loads, machine drives operating with DC input are all essential reasons forthe recent popularity of DC power system.Many systems are currently using DC power. For instance, systems requiring high reliability andare involving large number of electronic loads such as data centers, DC architectures provide amore efficient solution for electric power distribution. Additional DC distribution systemsinclude telecommunication system, shipboard power system, aircraft powertrain, electricvehicles and hybrid electric vehicles.The importance of the DC power system is not only because of the fact that most of therenewable energy sources such as solar, wind and fuel cell have a DC output but also becauseimplementation of the energy storage system are easier and more efficient in DC power system.In order to meet peak demands and for the reliability improvement of the power system, theenergy storage are of significant importance. Additionally, for higher installation of renewableenergy sources, implementation of energy storage is crucial to maintain the grid stability.The DC power system involves with many new challenges and requires new techniques such aspower flow control, energy management system, advanced protection and optimum efficiency. Inthis paper, we present the development of our educational DC microgrid platform which includesmost popular renewable energy sources and hybrid storage systems. This lab-scale platformprovided an educational environment for senior students and graduate student to take part in thelaboratory experiments and to understand and develop new ideas for DC power systemapplications.This effort involves the following development:  Development of 320-V and 120-V lab-scale DC power system that includes hybrid energy resources and various loading schemes;  Development and implementation of DC-DC boost converter and DC-DC bidirectional buck-boost converter for energy control in hybrid DC power system;  Development and implementation of photovoltaic power profile emulator with utilization of MagnaPower programmable power supply;  Development and implementation of dc motor coupled with permanent magnet generator as a wind turbine emulator;  Development and implementation of fuel cell power emulator utilizing MagnaPower programmable power supply;  Development and integration of real-time control and monitoring of hybrid dc power system by implementation of dSpace1103 and dSpace1104 control board;  Development and implementation of different energy storage technology including supercapacitor energy storage system, lead-acid battery bank and lithium battery bank;  Development of experiments for study of the effect of galvanic isolation on the DC power system performance;  Develop of experiment for energy transfer study in DC grids using renewable energy sources and storage systems to show the students how to maintain the balance of consumption and energy generation;  Development of experimental test for control and energy management study in a hybrid DC power train system with regenerative braking capability;  The development of a simulation model of energy storage system including different types of battery and supercapacitor and evaluation of the model using the experimental results;  Development of experiment for pulse load study and analyzing the effect of the pulse load on the performance of the dc power system;  Development of a simulation platform for fault study and protection of the DC microgrid including fault identification and system restoration.The developed lab-scale platform along with the new experiments will provide this opportunityfor the students to understand many challenges and concepts of the hybrid dc power system.Also, the students, as a researcher, are able to develop new techniques and evaluate their ideasexperimentally for advancing the system control and improving the dc power systemperformance.

Farhadi, M., & Mohammed, O. A. (2015, June), Design and Hardware Implementation of Laboratory-scale Hybrid DC Power System for Educational Purposes Paper presented at 2015 ASEE Annual Conference & Exposition, Seattle, Washington. 10.18260/p.23790

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