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An Analog Technique for Distributed MPPT PV Applications

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3 Author(s)
Petrone, G. ; Dipt. di Ing. Elettron. ed Ing. Inf., Univ. di Salerno, Fisciano, Italy ; Spagnuolo, G. ; Vitelli, M.

TEODI is the acronym of a maximum power point tracking (MPPT) technique which has been recently presented in the literature. Such a technique is particularly suitable in distributed MPPT photovoltaic (PV) applications, and it is based on the equalization of the output operating points, of the dc/dc converters dedicated to each subsection of the PV array, in correspondence of the forced displacement of their input operating points. The main advantages of TEODI, its performances in terms of MPPT efficiency and speed of tracking, and the intrinsic capability to attenuate the effect, on the voltages of the PV modules, of the 100/120 Hz disturbances coming from the grid are shown by means of simulation results and experimental findings obtained by using a laboratory prototype developed by means of analog circuitry only.

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Industrial Electronics, IEEE Transactions on  (Volume:59 ,  Issue: 12 )