A MPPT Algorithm for Single-Phase Single-Stage Photovoltaic Converters
| Authors: | Grandi Gabriele, Dept. of Electrical Engineering - University of Bologna, Italy
Rossi Claudio, Dept. of Electrical Engineering - University of Bologna, Italy
Casadei Domenico, Dept. of Electrical Engineering - University of Bologna, Italy |
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| Topic: | 6.3 Power Plants and Power Systems |
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| Session: | Power Plants and Power Systems Modelling and Control |
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| Keywords: | Converters, Solar energy, Renewable energy systems, Efficiency enhancement, Inverters. |
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Abstract
A maximum power point tracking algorithm for single-stage converters connecting photovoltaic panels to a single-phase grid is presented in this paper. The algorithm is based on the processing of current and voltage low-frequency oscillations introduced in the PV panels by the single-phase utility grid. The algorithm has been developed to allow an array of PV modules to be connected to the grid by using a single-stage converter. This simple structure yields higher efficiency and reliability when compared with standard solutions based on double-stage converters configuration. The proposed maximum power point tracking algorithm has been numerically simulated and experimentally verified by means of a converter prototype connected to a single-phase grid.
