NDLI: Improving the efficiency of large solar fields

Content Provider	IEEE Xplore Digital Library
Author	Rabinovici, R. Frechter, Y.B.
Copyright Year	2010
Description	Author affiliation: Dept. of Electrical and Computer Engineering, Ben Gurion University of the Negev, Beer Sheva, Israel (Rabinovici, R.; Frechter, Y.B.)
Abstract	Being able to correctly track the Maximum Power Point (MPP) of a solar array is of a paramount importance, especially when dealing with large and very large solar fields. Each deviation means — energy is not optimally harvested from the field. This is evident to the extreme, when local shading occurs. Then, locally shaded cells turn into loads on the entire array. In the past, it was offered to deal with the problem using bypass diodes and halter diodes. This approach is not satisfactory, as the diodes only disconnect the shaded cells from the array at best, while not utilizing the energy these cells continue to absorb. It is offered to improve the utility by making sure all panels work as close to their respective optimal power points as possible, using modifications done to the interconnection between them. Finding the MPP in order to classify panels for meandering was used to be a problem till the introduction of the 10-parameter nonlinear solar cell model. Provided all parameters are known a-priori, acquiring the temperature and illumination on the cell can be done using an iterative algorithm performed on the 10-parameter model with temperature extensions using single working point voltage and current measurements, or in a more straight-forward manner, using a camera, a thermometer and an anemometer.
Starting Page	000031
Ending Page	000035
File Size	192298
Page Count	5
File Format	PDF
ISBN	9781424486816
e-ISBN	9781424486823
DOI	10.1109/EEEI.2010.5662181
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-17
Publisher Place	Israel
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Temperature measurement Lighting Photovoltaic cells Inverters Mathematical model Relays
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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