Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Optimized Compensation of Unwanted Current Terms by AC Power Converters Under Generic Voltage Conditions

Texto completo
Autor(es):
Brandao, Danilo Iglesias ; Guillardi, Jr., Hildo ; Morales-Paredes, Helmo K. ; Marafao, Fernando Pinhabel ; Pomilio, Jose Antenor
Número total de Autores: 5
Tipo de documento: Artigo Científico
Fonte: IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS; v. 63, n. 12, p. 7743-7753, DEC 2016.
Citações Web of Science: 7
Resumo

This paper formulates an optimization-based algorithm for the compensation of unwanted current terms by means of distributed electronic power converters, such as active power filters and grid-connected inverters. The compensation goal consists in achieving suitable load conformity factors, defined at the source side and within a feasible power region in terms of the power converter capability. Based on the measured load quantities and on a certain objective function, the algorithm tracks the expected source currents, which are thereupon used to calculate proper scaling coefficients and, therefore, the compensation current references. It improves the power quality at the point of common coupling and enables full exploitation of distributed energy resources, increasing their efficiency. The compensation is based on a decoupled current decomposition and on an optimization-based algorithm. In this paper, the strategy is applied to nonlinear and unbalanced three-phase four-wire circuit, under nonsinusoidal and asymmetrical voltage conditions. The steady-state and dynamic behaviors have been analyzed by theoretical, simulation, and experimental results. Furthermore, the proposed approach is also compared to other compensation strategies showing its effectiveness. (AU)

Processo FAPESP: 14/23691-1 - Plataforma experimental para estudos de redes inteligentes de energia elétrica: fontes, conversores e controle
Beneficiário:Jose Antenor Pomilio
Linha de fomento: Bolsas no Exterior - Pesquisa
Processo FAPESP: 12/24309-8 - Estudo e desenvolvimento de sistemas fotovoltaicos distribuídos visando a operação cooperativa em microrredes de energia
Beneficiário:Danilo Iglesias Brandão
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 13/08545-6 - Estudo de técnicas de controle localizado e/ou cooperativo para microrredes inteligentes de baixa tensão
Beneficiário:Helmo Kelis Morales Paredes
Linha de fomento: Auxílio à Pesquisa - Regular