LQR Design Using LMIs and the Robust 0-Stability Criterion for Low -Frequency Oscillation Damping in Power Systems

Autor(es)

Rezende, Jefferson C. ; Carvalho, Luis ; Neto, Jozias R. L. ; Costa, Marcus V. S. ; Fortes, Elenilson, V ; Macedo, Leonardo H. ; Tsuzuki, MDG ; Pessoa, MAD

• Tipo de documento: Artigo Científico
• Fonte: 2021 14TH IEEE INTERNATIONAL CONFERENCE ON INDUSTRY APPLICATIONS (INDUSCON); v. N/A, p. 8-pg., 2021-01-01.

Resumo

This article proposes the application of a linear quadratic regulator (LQR) optimized by linear matrix inequalities using the robust 0 -stability concept to ensure the stability of the single machine infinite bus system, which includes a generator and a load connected to an infinite bus. The power system is modeled using the current sensitivity model, which represents the nodal balance of currents at each bus of the power system. The objective is to damp the poles of interest existing in the power system with control techniques based on state feedback through the automatic voltage regulator of the synchronous generator. The obtained results allow to infer that the technique based on the robust 0 -stability concept is slightly more efficient than the LQR alone, what accredits it as a powerful tool for improving the small-signal stability of electric power systems. (AU)

• Processo FAPESP: 18/20355-1 - Otimização do planejamento da expansão e da operação de sistemas de distribuição de energia elétrica considerando restauração da carga
• Beneficiário: Leonardo Henrique Faria Macedo Possagnolo
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 15/21972-6 - Otimização do planejamento e da operação de sistemas de transmissão e de distribuição de energia elétrica
• Beneficiário: Rubén Augusto Romero Lázaro
• Modalidade de apoio: Auxílio à Pesquisa - Temático