Purpose – The purpose of this paper is to propose a new converter topology for integrating PV plants constituted by many panels into the grid. The converter is capable of implementing MPPT algorithms on different subset of modules and can balance the different energy supplied by panels differently irradiated. The output voltage presents a very low ripple also if small filters are used for grid connection. Design/methodology/approach – In the paper, at first the converter configuration is presented. Then a control strategy for obtaining, at the same time the distributed MPPT and the power balancing on the three phases is proposed. Finally, by means of numerical simulations, the good performances of the proposed converter are shown. Findings – The proposed converter, lent from MMC configurations, is deeply studied and a suitable control strategy is well analyzed in the paper. Analytical model for voltage and current balancing are given.

Current balancing of cascaded H-bridge converters for PV systems with partial shading / Iannuzzi, Diego; Pagano, Mario; Piegari, Luigi; Tricoli, Pietro. - In: COMPEL. - ISSN 0332-1649. - 34:6(2015), pp. 1879-1895. [10.1108/COMPEL-11-2014-0324]

Current balancing of cascaded H-bridge converters for PV systems with partial shading

IANNUZZI, DIEGO;PAGANO, MARIO;PIEGARI, LUIGI;TRICOLI, Pietro
2015

Abstract

Purpose – The purpose of this paper is to propose a new converter topology for integrating PV plants constituted by many panels into the grid. The converter is capable of implementing MPPT algorithms on different subset of modules and can balance the different energy supplied by panels differently irradiated. The output voltage presents a very low ripple also if small filters are used for grid connection. Design/methodology/approach – In the paper, at first the converter configuration is presented. Then a control strategy for obtaining, at the same time the distributed MPPT and the power balancing on the three phases is proposed. Finally, by means of numerical simulations, the good performances of the proposed converter are shown. Findings – The proposed converter, lent from MMC configurations, is deeply studied and a suitable control strategy is well analyzed in the paper. Analytical model for voltage and current balancing are given.
2015
Current balancing of cascaded H-bridge converters for PV systems with partial shading / Iannuzzi, Diego; Pagano, Mario; Piegari, Luigi; Tricoli, Pietro. - In: COMPEL. - ISSN 0332-1649. - 34:6(2015), pp. 1879-1895. [10.1108/COMPEL-11-2014-0324]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/613013
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