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- W2553221983 abstract "Supervisory Committee: Dr. Ashoka K. S. Bhat, (Department of Electrical and Computer Engineering) Supervisor Dr. H. L. Kwok, (Department of Electrical and Computer Engineering) Department member Dr. Subhasis Nandi, (Department of Electrical and Computer Engineering) Department member Dr. Ned Djilali, (Department of Mechanical Engineering) Outside Member This thesis presents interfacing of fuel cells to a single-phase utility line using a highfrequency transformer isolated power converter. This research contributes towards selecting a suitable utility interfacing scheme and then designing a power conditioning system along with its control for connecting fuel cells to a single-phase utility line that can achieve high efficiency and compact size. The power conditioning system, designed and built in the research laboratory is connected with the utility line and the experimental results are presented. Based on the literature available on photovoltaic (PV) array and fuel cell based utility interactive inverters with high-frequency transformer isolation, the interfacing schemes for connecting a DC source, in particular fuel cells, to a single-phase utility line are classified. Based on the fuel cell characteristics and properties, performance and the comparison of these utility interfacing schemes, a suitable scheme for the present application is selected. Because of low voltage fuel cells, the system takes higher current from the fuel cell and results in lower efficiency of the system. The inverter stage of the selected scheme deals with the higher voltage (lower current) and therefore, its efficiency is higher. In this sense, the efficiency of the whole system depends mainly on the efficiency of the frontend DC-DC converter. To realize a low cost, small size and light weight system, soft-" @default.
- W2553221983 created "2016-11-30" @default.
- W2553221983 creator A5068418842 @default.
- W2553221983 date "2008-01-01" @default.
- W2553221983 modified "2023-09-24" @default.
- W2553221983 title "High-frequency transformer isolated power conditioning system for fuel cells to utility interface" @default.
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