Robust H-infinity state feedback controllers based on linear matrix inequalities applied to grid-connected converters

Autor:	Oliveira, Ricardo Coração de Leão Fontoura de, 1978
Přispěvatelé:	UNIVERSIDADE ESTADUAL DE CAMPINAS
Rok vydání:	2019
Předmět:	H-infinity control Linear matrix inequalities Artigo original Digital-to-analog converters LCL filters Desigualdades matriciais lineares Conversores digitais-analógicos
Zdroj:	Repositório da Produção Científica e Intelectual da Unicamp Universidade Estadual de Campinas (UNICAMP) instacron:UNICAMP
Popis:	This paper provides robust H-infinity state feedback controllers suitable for implementation in three-phase grid-connected converters. This control strategy is known to provide optimal rejection of disturbances, but usually leads to high control gains, that may be difficult to be implemented in practice. To mitigate this problem, a linear matrix inequality condition based on slack variables is proposed, which allows to impose bounds on the control gains in a less conservative way than conventional quadratic stability. The performance is proven to be superior to similar H 8 state feedback controllers in the literature, providing an upper bound for the converter output admittance and experimental grid currents complying with the IEEE Standard 1547 CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES Fechado
Databáze:	OpenAIRE
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