Performance Improvement by Mitigating the Effects of Moving Cloud Conditions

• Published in: IEEE transactions on power electronics Vol. 36; no. 4; pp. 4214 - 4223
• Main Authors: Tatabhatla, Venkata Madhava Ram, Agarwal, Anshul, Kanumuri, Tirupathiraju
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.04.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Array reconfiguration; Circuits; Clouds; Configuration management; Dispersion; Electric bridges; Equalization; Irradiance; moving clouds; Panels; Photovoltaic cells; Power generation; Prototypes; Reconfiguration; Relocation; shade dispersion; Shading; Solar arrays; Solar collectors; Topology; Wires
• ISSN: 0885-8993; 1941-0107
• DOI: 10.1109/TPEL.2020.3020807

Partial shading is an important subject for the research community to improve the issues in the field of solar array utilization. Shading decreases the life of photovoltaic array, its output power yield, and also generates several peaks in its P - V characteristic curves. Physical relocation of panels can be used as a practical solution to prevent such problems by altering the location of panels but not its electrical circuit. In this article, a reconfiguration technique for all conventional configurations like, series-parallel, bridge-link, honey comb, and total cross tied connections are proposed to reduce current difference between the rows and to improve the irradiance equalization by dispersing the shade. This article proposes a mathematical Tom-Tom puzzle pattern for <inline-formula><tex-math notation="LaTeX">5\times 5</tex-math></inline-formula> array to enhance the output parameters. The performance of all configurations is evaluated with artificially generated shading to resemble moving clouds which are incremented progressively in row-wise and diagonal manner. From the extensive analysis of results, it has been found that the proposed reconfigurations show better performance than its respective static configurations. The proposed configuration is also tested in terms of income generated and a comparison with the existing state-of-art methods to show the supremacy of the proposed approach.