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An integrated hybrid power supply for distributed generation applications fed by nonconventional energy sources

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Title An integrated hybrid power supply for distributed generation applications fed by nonconventional energy sources
 
Creator JAIN, SACHIN
AGARWAL, VIVEK
 
Subject computer simulation
electric converters
fuel cells
photovoltaic cells
uninterruptible power systems
 
Description A new, hybrid integrated topology, fed by photovoltaic (PV) and fuel cell (FC) sources and suitable for distributed generation applications, is proposed. It works as an uninterruptible power source that is able to feed a certain minimum amount of power into the grid under all conditions. PV is used as the primary source of power operating near maximum power point (MPP), with the FC section (block), acting as a current source, feeding only the deficit power. The unique "integrated" approach obviates the need for dedicated communication between the two sources for coordination and eliminates the use of a separate, conventional dc/dc boost converter stage required for PV power processing, resulting in a reduction of the number of devices, components, and sensors. Presence of the FC source in parallel (with the PV source) improves the quality of power fed into the grid by minimizing the voltage dips in the PV output. Another desirable feature is that even a small amount of PV power (e.g., during low insolation), can be fed into the grid. On the other hand, excess power is diverted for auxiliary functions like electrolysis, resulting in an optimal use of the energy sources. The other advantages of the proposed system include low cost, compact structure, and high reliability, which render the system suitable for modular assemblies and "plug-n-play" type applications. All the analytical, simulation, and experimental results of this research are presented.
 
Publisher IEEE
 
Date 2008-12-01T04:55:11Z
2011-11-25T16:09:16Z
2011-12-26T13:05:26Z
2011-12-27T05:52:22Z
2008-12-01T04:55:11Z
2011-11-25T16:09:16Z
2011-12-26T13:05:26Z
2011-12-27T05:52:22Z
2008
 
Type Article
 
Identifier IEEE Transactions on Energy Conversion 23(2), 622-31
0885-8969
http://dx.doi.org/10.1109/TEC.2008.918631
http://hdl.handle.net/10054/202
http://dspace.library.iitb.ac.in/xmlui/handle/10054/202
 
Language en_US