Autor(es)

Koleff, Lucas ; Angelico, Bruno ; Pellini, Eduardo ; Matakas, Lourenco, Jr. ; IEEE

• Tipo de documento: Artigo Científico
• Fonte: 2018 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE); v. N/A, p. 7-pg., 2018-01-01.

Resumo

The LC coupled voltage source inverters (LCVSIs) are used to compensate harmonic distorted load currents as the hybrid active harmonic filters. Due to the series capacitor in the coupling impedance, the inverter rating is reduced when compared to traditional topologies. However, the plant has resonant characteristics and excessive currents may flow through the arrangement when the point of common coupling voltage is distorted. The main contribution of this paper is to present a predictive observer with feedforward of the estimated disturbance in order to mitigate this problem. Current tracking is achieved using a linear quadratic regulator with state-feedback and input integrator. The modelling of the plant and the control loop design in the discrete-time domain are presented. Simulations and experimental measurements on a prototype show good agreement thus validating the proposed control strategy; evidencing good disturbance rejection and reference tracking. (AU)

• Processo FAPESP: 16/16542-5 - Modelamento e proposta de estratégias de controle para compensação de harmônicos e reativos empregando conversores do tipo fonte de tensão com acoplamento LC
• Beneficiário: Lucas Monogios Koleff
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 16/01930-0 - Projeto e construção de uma plataforma experimental para o Estudo de Sistemas MMC (Modular Multilevel Converter)
• Beneficiário: Lourenço Matakas Junior
• Modalidade de apoio: Auxílio à Pesquisa - Regular