Artigo em periódicoOpen Access
Comparative Study of Control Strategies for Stabilization and Performance Improvement of DC Microgrids with a CPL Connected
8BESSA, I. V.2020BESSA, I. V.; DE MEDEIROS, RENAN LP; BESSA, IURY VALENTE DE; AYRES JR., F. A. C.; MENEZES, A. R.; TORRES, G. M.; CHAVES FILHO, JOÃO EDGAR
Resumo
Resumo
The DC microgrid system is composed by converters that operate like feeders and loads. Among these loads, we highlight the constant power loads (CPLs) that may cause instability in the microgrid, observed in the form of undesired oscillations due to its negative impedance behavior. Therefore, this work proposes to use performance indices and stability margins to evaluate state and output feedback control strategies for stabilization of DC microgrids. In particular, it is proposed to evaluate the stability margin of the proposed methodologies by means of the impedance relations in the microgrid based on the Middlebrook criterion. Our simulations and tests showed the relation between the performance and stability degradation and the microgrid impedances variation.
Autoria
Autores do grupo (3)
A lista completa de autores está no topo da página. Abaixo, apenas os pesquisadores do e-Controls vinculados a esta publicação.
palavras-chave
Palavras-chave
DC microgridconstant power loadstate feedback controloutput feedback controlstability marginoscillationsperformance index
Volume
13
Número
10
Páginas
2663
Editora
MDPI AG
Status
Published
links
Links e arquivos
Artigo em periódico