Title:
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Enhanced power calculator for droop control in single-phase systems
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Author:
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Azevedo, Gustavo M.S.; Calvancanti, M; Bradaschia, F.; Neves, F.; Rocabert Delgado, Joan; Rodríguez Cortés, Pedro
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica; Universitat Politècnica de Catalunya. SEER - Sistemes Elèctrics d'Energia Renovable |
Abstract:
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Droop control is a common method to parallel
operation of inverters. This method uses the average values of
power components which are usually obtained through low-pass
filters. However, in single-phase systems the power components
are oscillating at twice fundamental frequency and the filters
cut-off frequency must be very low. Thus, there is a tradeoff
between dynamic response and oscillation attenuation. In this
paper, a method that uses a fictitious quadrature reference frame
to calculate the average power components is presented. This
method improves the dynamic response of the power sharing
control and eliminates the double-frequency oscillation over the
voltage and frequency synthesized by the inverter. Moreover, it is
able to deal with nonlinear loads since the harmonic components
that appear in the instantaneous power are filtered. This paper
also presents a comparison between this method and the classical
one through simulation carried out in Matlab/Simulink and
experimental results. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric -Àrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctrica -Distributed generation of electric power -Electric current converters -Energia elèctrica -- Distribució -Convertidors de corrent elèctric |
Rights:
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Document type:
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Article - Published version Conference Object |
Published by:
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IEEE
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