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Microprocessor control system for maximum power operation of PV arrays

✍ Scribed by Abd El-Shafy A. Nafeh; Faten H. Fahmy; Osama A. Mahgoub; Essam M. Abou El-Zahab

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 140 KB
Volume: 12
Category: Article
ISSN: 0894-3370
DOI: 10.1002/(sici)1099-1204(199905/06)12:3<187::aid-jnm317>3.0.co;2-2

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✦ Synopsis

The proposed PV system consists of four subsystems; the PV array subsystem, the power conditioning subsystem, the control subsystem, and the DC load subsystem. Experimental realization of the proposed system is carried out. The control of the switching duty cycle of the used DC}DC converter is achieved through the 1803 algorithm, where a conventional PI controller is used to provide the implemented system with the suitable control action. Experimental results are found to satisfactorily track the MPP of the PV array.

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## Abstract The PV array has a unique operating point that can supply maximum power to the load. This point is called the maximum‐power point (MPP), and is located on the output characteristics of the array. The locus of this point varies, non‐linearly, with the unpredictable variations in the sola