June 14, 2015
June 14, 2015
June 17, 2015
Energy Conversion and Conservation
26.452.1 - 26.452.18
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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