A star-configured cascade H-bridge converter for building integrated photovoltaics

Author

Iannuzzi, D. ; Pagano, M. ; Piegari, L. ; Tricoli, P.

Author_Institution

Dept. of Electr. Eng. & Inf. Technol., Univ. of Naples “Federico II”, Naples, Italy

fYear

2014

fDate

25-27 March 2014

Firstpage

1

Lastpage

7

Abstract

The paper studies a three-phase PV power system connected to the LV power grid. The power system consists of a PV source, and a DC boost converter. The DC link is connected to the grid via a new cascade H-bridge converter, typical for modular multilevel converter application. A control approach is formulated. The control strategy aims at delivering to the grid the maximum power available from the PV sources with unity power factor. The control is formulated in case of inhomogeneous irradiation and the line current symmetry is assumed as system requirement. Aiming at verify the feasibility of the proposed approach, a numerical simulator for a 12 kW PV power plant is realized in ®Matlab. The results of the numerical simulations are used to give evidence to the approach in case of building façade application.

Keywords

photovoltaic power systems; power convertors; power generation control; power grids; symmetry; DC boost converter; LV power grid; Matlab; PV source; building integrated photovoltaics; line current symmetry; numerical simulator; power 12 kW; star-configured cascade H-bridge converter; three-phase PV power system; unity power factor; Electronic mail; Equations; Mathematical model; Power systems; Radiation effects; Switches; Topology; Modular Multilevel Converters; PV source; grid-interface converters; power systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Ecological Vehicles and Renewable Energies (EVER), 2014 Ninth International Conference on

Conference_Location

Monte-Carlo

Print_ISBN

978-1-4799-3786-8

Type

conf

DOI

10.1109/EVER.2014.6844017

Filename

6844017