Análises de Controladores PR e PI Multivariável Aplicados às Estruturas de Controle de Corrente de um Inversor Trifásico Conectado à Rede

Renato Santana Ribeiro Junior; Eubis Pereira Machado; Damásio Fernandes Júnior

doi:10.20906/CBA2022/3614

Renato Santana Ribeiro Junior Universidade Federal de Campina Grande, UFCG, PB
Eubis Pereira Machado Universidade Federal do Vale do São Francisco, UNIVASF, BA
Damásio Fernandes Júnior Universidade Federal de Campina Grande, UFCG, PB

DOI: https://doi.org/10.20906/CBA2022/3614

Keywords: PI-multivariable, P-resonant, SVPWM, LC Filter

Abstract

In this work, two control structures for the current loop applied to a VSI (Voltage Source Inverter ) connected to the network are presented. For the tuning of the controllers, the transfer function of the filter-network system was developed in an analytical way, considering all the dynamics of the system, in order to obtain the models in coordinates αβ and dq. With the system model in coordinates αβ, the PR controller was tuned and for dq the multivariable PI controller. Finally, the performance of both structures was compared, highlighting the multivariable PI controller, in terms of stability and decoupling of the reference axes.