NDLI: Thermoelectric generators in photovoltaic hybrid systems

Content Provider	IEEE Xplore Digital Library
Author	Kugele, R. Roth, W. Schulz, W. Steinhuser, A.
Copyright Year	1996
Description	Author affiliation: Fraunhofer-Inst. fur Solare Energiesysteme, Freiburg, Germany (Kugele, R.)
Abstract	The supply of distant electric devices that cannot be connected to the public electricity grid for reasons of cost, waiting time or due to the need of local flexibility has been a major problem. To date, the power supply of such stand-alone systems has been based mainly on battery-buffered fossil-fueled motor-generators. Apart from the consumption of limited fossil fuel reserves, the disadvantages of these systems include the creation of noise and exhaust gases, the constant need to obtain fuel and, most important, the high amount of maintenance and repairs. For these reasons, and due to the progress in regenerative energy conversion made in the last decade, battery-buffered PV power systems are used more and more often. Their advantages are high reliability and low cost of repairs. However, far away from the equator, where solar radiation is very low during the winter, large PV generators are needed to guarantee sufficient reliability. Therefore, system costs are high. Another disadvantage is that the battery lifetime in PV power systems is significantly reduced compared to its lifetime in fossil fueled systems. To avoid these disadvantages, the PV generator can be combined with fossil fueled power generators. In the medium power range, from 10 W up to several hundred W, thermoelectric generators appear to be particularly qualified because of their reliability and lifetime. In this paper, a (so called) "photovoltaic hybrid system" is compared to a purely PV power system on the basis of model calculations starting with the solar radiation situation on the Earth's surface.
Starting Page	352
Ending Page	356
File Size	1025167
Page Count	5
File Format	PDF
ISBN	0780332210
DOI	10.1109/ICT.1996.553505
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-03-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Thermoelectricity Hybrid power systems Photovoltaic systems Solar power generation Power system reliability Costs Power generation Solar radiation Power system modeling Power grids
Content Type	Text
Resource Type	Article

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