A DP based scheme for real-time reconfiguration of solar cell arrays exposed to dynamic changing inhomogeneous illuminations

Liping Shi, Robert Brehm

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The overall energy conversion efficiency of solar cell arrays is highly effected by partial shading effects. Especially for solar panel arrays installed in environments which are exposed to inhomogeneous dynamic changing illuminations such as on roof tops of electrical vehicles the overall system efficiency is drastically reduced. Dynamic real-time reconfiguration of the solar panel array can reduce effects on the output efficiency due to partial shading. This results in a maximized power output of the panel array when exposed to dynamic changing illuminations. The optimal array configuration with respect to shading patterns can be stated as a combinatorial optimization problem and this paper proposes a dynamic programming (DP) based algorithm which finds the optimal feasible solution to reconfigure the solar panel array for maximum efficiency in real-time with linear time complexity. It is shown that the effective increase of efficiency is up to 50%. An experimental platform to evaluate and validate the DP algorithm performance under real conditions to proof the concept of the proposed reconfiguration scheme is introduced.

Original languageEnglish
Title of host publicationProceeeding of the 4th International Conference on Renewable Energy Research and Applications
PublisherIEEE Press
Publication date23 Feb 2016
Pages353-357
ISBN (Electronic)978-1-4799-9982-8, 978-1-4799-9981-1
DOIs
Publication statusPublished - 23 Feb 2016
Event4th International Conference on Renewable Energy Research and Applications - Palermo, Italy
Duration: 22 Nov 201525 Nov 2015
Conference number: 4

Conference

Conference4th International Conference on Renewable Energy Research and Applications
Number4
CountryItaly
CityPalermo
Period22/11/201525/11/2015

Fingerprint

Solar cell arrays
Dynamic programming
Lighting
Combinatorial optimization
Energy conversion
Roofs
Conversion efficiency

Cite this

Shi, L., & Brehm, R. (2016). A DP based scheme for real-time reconfiguration of solar cell arrays exposed to dynamic changing inhomogeneous illuminations. In Proceeeding of the 4th International Conference on Renewable Energy Research and Applications (pp. 353-357). IEEE Press. https://doi.org/10.1109/ICRERA.2015.7418434
Shi, Liping ; Brehm, Robert. / A DP based scheme for real-time reconfiguration of solar cell arrays exposed to dynamic changing inhomogeneous illuminations. Proceeeding of the 4th International Conference on Renewable Energy Research and Applications. IEEE Press, 2016. pp. 353-357
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title = "A DP based scheme for real-time reconfiguration of solar cell arrays exposed to dynamic changing inhomogeneous illuminations",
abstract = "The overall energy conversion efficiency of solar cell arrays is highly effected by partial shading effects. Especially for solar panel arrays installed in environments which are exposed to inhomogeneous dynamic changing illuminations such as on roof tops of electrical vehicles the overall system efficiency is drastically reduced. Dynamic real-time reconfiguration of the solar panel array can reduce effects on the output efficiency due to partial shading. This results in a maximized power output of the panel array when exposed to dynamic changing illuminations. The optimal array configuration with respect to shading patterns can be stated as a combinatorial optimization problem and this paper proposes a dynamic programming (DP) based algorithm which finds the optimal feasible solution to reconfigure the solar panel array for maximum efficiency in real-time with linear time complexity. It is shown that the effective increase of efficiency is up to 50{\%}. An experimental platform to evaluate and validate the DP algorithm performance under real conditions to proof the concept of the proposed reconfiguration scheme is introduced.",
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Shi, L & Brehm, R 2016, A DP based scheme for real-time reconfiguration of solar cell arrays exposed to dynamic changing inhomogeneous illuminations. in Proceeeding of the 4th International Conference on Renewable Energy Research and Applications. IEEE Press, pp. 353-357, 4th International Conference on Renewable Energy Research and Applications, Palermo, Italy, 22/11/2015. https://doi.org/10.1109/ICRERA.2015.7418434

A DP based scheme for real-time reconfiguration of solar cell arrays exposed to dynamic changing inhomogeneous illuminations. / Shi, Liping; Brehm, Robert.

Proceeeding of the 4th International Conference on Renewable Energy Research and Applications. IEEE Press, 2016. p. 353-357.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Shi L, Brehm R. A DP based scheme for real-time reconfiguration of solar cell arrays exposed to dynamic changing inhomogeneous illuminations. In Proceeeding of the 4th International Conference on Renewable Energy Research and Applications. IEEE Press. 2016. p. 353-357 https://doi.org/10.1109/ICRERA.2015.7418434